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distortion</title> <meta name="description" content="Search results for: welding distortion"> <meta name="keywords" content="welding distortion"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button class="d-block d-lg-none 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action="https://publications.waset.org/abstracts/search"> <div id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="welding distortion"> <input type="submit" class="btn_search" value="Search"> </div> </div> </form> </div> </div> <div class="row mt-3"> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Commenced</strong> in January 2007</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Frequency:</strong> Monthly</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Edition:</strong> International</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Paper Count:</strong> 532</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: welding distortion</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">532</span> Prediction of Welding Induced Distortion in Thin Metal Plates Using Temperature Dependent Material Properties and FEA</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rehan%20Waheed">Rehan Waheed</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdul%20Shakoor"> Abdul Shakoor</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Distortion produced during welding of thin metal plates is a problem in many industries. The purpose of this research was to study distortion produced during welding in 2mm Mild Steel plate by simulating the welding process using Finite Element Analysis. Simulation of welding process requires a couple field transient analyses. At first a transient thermal analysis is performed and the temperature obtained from thermal analysis is used as input in structural analysis to find distortion. An actual weld sample is prepared and the weld distortion produced is measured. The simulated and actual results were in quite agreement with each other and it has been found that there is profound deflection at center of plate. Temperature dependent material properties play significant role in prediction of weld distortion. The results of this research can be used for prediction and control of weld distortion in large steel structures by changing different weld parameters. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=welding%20simulation" title="welding simulation">welding simulation</a>, <a href="https://publications.waset.org/abstracts/search?q=FEA" title=" FEA"> FEA</a>, <a href="https://publications.waset.org/abstracts/search?q=welding%20distortion" title=" welding distortion"> welding distortion</a>, <a href="https://publications.waset.org/abstracts/search?q=temperature%20dependent%20mechanical%20properties" title=" temperature dependent mechanical properties"> temperature dependent mechanical properties</a> </p> <a href="https://publications.waset.org/abstracts/12909/prediction-of-welding-induced-distortion-in-thin-metal-plates-using-temperature-dependent-material-properties-and-fea" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/12909.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">390</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">531</span> Impact of Welding Distortion on the Design of Fabricated T-Girders Using Finite Element Modeling</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20Hammad"> Ahmed Hammad</a>, <a href="https://publications.waset.org/abstracts/search?q=Yehia%20Abdel-Nasser"> Yehia Abdel-Nasser</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Shamma"> Mohamed Shamma</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The main configuration of ship construction consists of standard and fabricated stiffening members which are commonly used in shipbuilding such as fabricated T-sections. During the welding process, the non-uniform heating and rapid cooling lead to the inevitable presence of out-of-plane distortion and welding induced residual stresses. Because of these imperfections, the fabricated structural members may not attain their design load to be carried. The removal of these imperfections will require extra man-hours. In the present work, controlling these imperfections has been investigated at both design and fabrication stages. A typical fabricated T-girder is selected to investigate the problem of these imperfections using double-side welding. A numerical simulation based on finite element (FE) modeling has been used to investigate the effect of different parameters of the selected fabricated T-girder such as geometrical properties and welding sequences on the magnitude of welding imperfections. FE results were compared with the results of experimental model of a double-side fillet weld. The present work concludes that: Firstly, in the design stage, the optimum geometry of the fabricated T- girder is determined based on minimum steel weight and out- of- plane distortion. Secondly, in the fabrication stage, the best welding sequence is determined on the basis of minimum welding out- of- plane distortion. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=fabricated%20T-girder" title="fabricated T-girder">fabricated T-girder</a>, <a href="https://publications.waset.org/abstracts/search?q=FEM" title=" FEM"> FEM</a>, <a href="https://publications.waset.org/abstracts/search?q=out-of-plane%20distortion" title=" out-of-plane distortion"> out-of-plane distortion</a>, <a href="https://publications.waset.org/abstracts/search?q=section%20modulus" title=" section modulus"> section modulus</a>, <a href="https://publications.waset.org/abstracts/search?q=welding%20residual%20stresses" title=" welding residual stresses"> welding residual stresses</a> </p> <a href="https://publications.waset.org/abstracts/114303/impact-of-welding-distortion-on-the-design-of-fabricated-t-girders-using-finite-element-modeling" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/114303.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">122</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">530</span> A Comparison of Double Sided Friction Stir Welding in Air and Underwater for 6mm S275 Steel Plate</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Philip%20Baillie">Philip Baillie</a>, <a href="https://publications.waset.org/abstracts/search?q=Stuart%20W.%20Campbell"> Stuart W. Campbell</a>, <a href="https://publications.waset.org/abstracts/search?q=Alexander%20M.%20Galloway"> Alexander M. Galloway</a>, <a href="https://publications.waset.org/abstracts/search?q=Stephen%20R.%20Cater"> Stephen R. Cater</a>, <a href="https://publications.waset.org/abstracts/search?q=Norman%20A.%20McPherson"> Norman A. McPherson</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study compared the mechanical and microstructural properties produced during friction stir welding(FSW) of S275 structural steel in air and underwater. Post weld tests assessed the tensile strength, micro-hardness, distortion, Charpy impact toughness and fatigue performance in each case. The study showed that there was no significant difference in the strength, hardness or fatigue life of the air and underwater specimens. However, Charpy impact toughness was shown to decrease for the underwater specimens and was attributed to a lower degree of recrystallization caused by the higher rate of heat loss experienced when welding underwater. Reduced angular and longitudinal distortion was observed in the underwater welded plate compared to the plate welded in air. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Charpy%20impact%20toughness" title="Charpy impact toughness">Charpy impact toughness</a>, <a href="https://publications.waset.org/abstracts/search?q=distortion" title=" distortion"> distortion</a>, <a href="https://publications.waset.org/abstracts/search?q=fatigue" title=" fatigue"> fatigue</a>, <a href="https://publications.waset.org/abstracts/search?q=friction%20stir%20welding%28FSW%29" title=" friction stir welding(FSW)"> friction stir welding(FSW)</a>, <a href="https://publications.waset.org/abstracts/search?q=micro-hardness" title=" micro-hardness"> micro-hardness</a>, <a href="https://publications.waset.org/abstracts/search?q=underwater" title=" underwater"> underwater</a> </p> <a href="https://publications.waset.org/abstracts/7606/a-comparison-of-double-sided-friction-stir-welding-in-air-and-underwater-for-6mm-s275-steel-plate" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/7606.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">424</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">529</span> Study of the Effect of Inclusion of TiO2 in Active Flux on Submerged Arc Welding of Low Carbon Mild Steel Plate and Parametric Optimization of the Process by Using DEA Based Bat Algorithm</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sheetal%20Kumar%20Parwar">Sheetal Kumar Parwar</a>, <a href="https://publications.waset.org/abstracts/search?q=J.%20Deb%20Barma"> J. Deb Barma</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Majumder"> A. Majumder</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Submerged arc welding is a very complex process. It is a very efficient and high performance welding process. In this present study an attempt have been done to reduce the welding distortion by increased amount of oxide flux through TiO2 in submerged arc welding process. Care has been taken to avoid the excessiveness of the adding agent for attainment of significant results. Data Envelopment Analysis (DEA) based BAT algorithm is used for the parametric optimization purpose in which DEA Data Envelopment Analysis is used to convert multi response parameters into a single response parameter. The present study also helps to know the effectiveness of the addition of TiO2 in active flux during submerged arc welding process. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=BAT%20algorithm" title="BAT algorithm">BAT algorithm</a>, <a href="https://publications.waset.org/abstracts/search?q=design%20of%20experiment" title=" design of experiment"> design of experiment</a>, <a href="https://publications.waset.org/abstracts/search?q=optimization" title=" optimization"> optimization</a>, <a href="https://publications.waset.org/abstracts/search?q=submerged%20arc%20welding" title=" submerged arc welding"> submerged arc welding</a> </p> <a href="https://publications.waset.org/abstracts/30180/study-of-the-effect-of-inclusion-of-tio2-in-active-flux-on-submerged-arc-welding-of-low-carbon-mild-steel-plate-and-parametric-optimization-of-the-process-by-using-dea-based-bat-algorithm" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/30180.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">639</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">528</span> Investigation of Distortion and Impact Strength of 304L Butt Joint Using Different Weld Groove</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=A.%20Sharma">A. Sharma</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20S.%20Sandhu"> S. S. Sandhu</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Shahi"> A. Shahi</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Kumar"> A. Kumar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The aim of present investigation was to carry out Finite element modeling of distortion in the case of butt weld. 12mm thick AISI 304L plates were butt welded using three different combinations of groove design namely Double U, Double V and Composite. A full simulation of shielded metal arc welding (SMAW) of nonlinear heat transfer is carried out. Aspects like, temperature-dependent thermal properties of AISI stainless steel above liquid phase, the effect of thermal boundary conditions, were included in the model. Since welding heat dissipation characteristics changed due to variable groove design significant changes in the microhardness tensile strength and impact toughness of the joints were observed. The cumulative distortion was found to be least in double V joint followed by the Composite and Double U-joints. All the joints have joint efficiency more than 100%. CVN value of the Double V-groove weld metal was highest. The experimental results and the FEM results were compared and reveal a very good correlation for distortion and weld groove design for a multipass joint with a standard analogy of 83%. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=AISI%20304%20L" title="AISI 304 L">AISI 304 L</a>, <a href="https://publications.waset.org/abstracts/search?q=Butt%20joint" title=" Butt joint"> Butt joint</a>, <a href="https://publications.waset.org/abstracts/search?q=distortion" title=" distortion"> distortion</a>, <a href="https://publications.waset.org/abstracts/search?q=FEM" title=" FEM"> FEM</a>, <a href="https://publications.waset.org/abstracts/search?q=groove%20design" title=" groove design"> groove design</a>, <a href="https://publications.waset.org/abstracts/search?q=SMAW" title=" SMAW"> SMAW</a> </p> <a href="https://publications.waset.org/abstracts/29787/investigation-of-distortion-and-impact-strength-of-304l-butt-joint-using-different-weld-groove" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/29787.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">405</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">527</span> Investigation of Distortion and Impact Strength of 304 L Butt Joint Using Different Weld Groove </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=A.%20Sharma">A. Sharma</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20S.%20Sandhu"> S. S. Sandhu</a>, <a href="https://publications.waset.org/abstracts/search?q=A.Shahi"> A.Shahi</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Kumar"> A. Kumar </a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study, the effects of geometric configurations of butt joints i.e. double V groove, double U groove and UV groove of AISI 304L of thickness 12 mm by using Gas Tungsten Arc Welding (GTAW) are investigated. The magnitude of transverse shrinkage stress and distortion generated during welding under the unrestrained conditions of butt joints is the main objective of the study. The effect of groove design on impact strength and metallurgical properties are also studied. The Finite element analysis for the groove design is done and compared the actual experimentation. The experimental results and the FEM results were compared and reveal a very good correlation for distortion and weld groove design for multipass joint with a standard analogy of 80%. In the case of VV groove design it was found that the transverse stress and cumulative deflection have the lowest value. It was found that the UV groove design had the maximum ultimate and yield tensile strength, VV groove had the highest impact strength. Vicker’s hardness value of all the groove design was measured. Micro structural studies were carried out using conventional microscopic tools which revealed a lot of useful information for correlating the microstructure with mechanical properties. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=weld%20groove%20design" title="weld groove design">weld groove design</a>, <a href="https://publications.waset.org/abstracts/search?q=distortion" title=" distortion"> distortion</a>, <a href="https://publications.waset.org/abstracts/search?q=AISI%20304%20L" title=" AISI 304 L"> AISI 304 L</a>, <a href="https://publications.waset.org/abstracts/search?q=butt%20joint" title=" butt joint"> butt joint</a>, <a href="https://publications.waset.org/abstracts/search?q=FEM" title=" FEM"> FEM</a>, <a href="https://publications.waset.org/abstracts/search?q=GTAW" title=" GTAW"> GTAW</a> </p> <a href="https://publications.waset.org/abstracts/20711/investigation-of-distortion-and-impact-strength-of-304-l-butt-joint-using-different-weld-groove" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/20711.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">366</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">526</span> Analysis of Residual Stresses and Angular Distortion in Stiffened Cylindrical Shell Fillet Welds Using Finite Element Method</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20R.%20Daneshgar">M. R. Daneshgar</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20E.%20Habibi"> S. E. Habibi</a>, <a href="https://publications.waset.org/abstracts/search?q=E.%20Daneshgar"> E. Daneshgar</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Daneshgar"> A. Daneshgar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, a two-dimensional method is developed to simulate the fillet welds in a stiffened cylindrical shell, using finite element method. The stiffener material is aluminum 2519. The thermo-elasto-plastic analysis is used to analyze the thermo-mechanical behavior. Due to the high heat flux rate of the welding process, two uncouple thermal and mechanical analysis are carried out instead of performing a single couple thermo-mechanical simulation. In order to investigate the effects of the welding procedures, two different welding techniques are examined. The resulted residual stresses and distortions due to different welding procedures are obtained. Furthermore, this study employed the technique of element birth and death to simulate the weld filler variation with time in fillet welds. The obtained results are in good agreement with the published experimental and three-dimensional numerical simulation results. Therefore, the proposed 2D modeling technique can effectively give the corresponding results of 3D models. Furthermore, by inspection of the obtained residual hoop and transverse stresses and angular distortions, proper welding procedure is suggested. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=stiffened%20cylindrical%20shell" title="stiffened cylindrical shell">stiffened cylindrical shell</a>, <a href="https://publications.waset.org/abstracts/search?q=fillet%20welds" title=" fillet welds"> fillet welds</a>, <a href="https://publications.waset.org/abstracts/search?q=residual%20stress" title=" residual stress"> residual stress</a>, <a href="https://publications.waset.org/abstracts/search?q=angular%20distortion" title=" angular distortion"> angular distortion</a>, <a href="https://publications.waset.org/abstracts/search?q=finite%20element%20method" title=" finite element method"> finite element method</a> </p> <a href="https://publications.waset.org/abstracts/50758/analysis-of-residual-stresses-and-angular-distortion-in-stiffened-cylindrical-shell-fillet-welds-using-finite-element-method" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/50758.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">351</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">525</span> A New Approach to the Boom Welding Technique by Determining Seam Profile Tracking</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Muciz%20%C3%96zcan">Muciz Özcan</a>, <a href="https://publications.waset.org/abstracts/search?q=Mustafa%20Sacid%20Endiz"> Mustafa Sacid Endiz</a>, <a href="https://publications.waset.org/abstracts/search?q=Veysel%20Alver"> Veysel Alver</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper we present a new approach to the boom welding related to the mobile cranes manufacturing, implementing a new method in order to get homogeneous welding quality and reduced energy usage during booms production. We aim to get the realization of the same welding quality carried out on the boom in every region during the manufacturing process and to detect the possible welding errors whether they could be eliminated using laser sensors. We determine the position of the welding region directly through our system and with the help of the welding oscillator we are able to perform a proper boom welding. Errors that may occur in the welding process can be observed by monitoring and eliminated by means of an operator. The major modification in the production of the crane booms will be their form of the booms. Although conventionally, more than one welding is required to perform this process, with the suggested concept, only one particular welding is sufficient, which will be more energy and environment-friendly. Consequently, as only one welding is needed for the manufacturing of the boom, the particular welding quality becomes more essential. As a way to satisfy the welding quality, a welding manipulator was made and fabricated. By using this welding manipulator, the risks of involving dangerous gases formed during the welding process for the operator and the surroundings are diminished as much as possible. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=boom%20welding" title="boom welding">boom welding</a>, <a href="https://publications.waset.org/abstracts/search?q=seam%20tracking" title=" seam tracking"> seam tracking</a>, <a href="https://publications.waset.org/abstracts/search?q=energy%20saving" title=" energy saving"> energy saving</a>, <a href="https://publications.waset.org/abstracts/search?q=global%20warming" title=" global warming"> global warming</a> </p> <a href="https://publications.waset.org/abstracts/30866/a-new-approach-to-the-boom-welding-technique-by-determining-seam-profile-tracking" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/30866.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">346</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">524</span> Bending Test Characteristics for Splicing of Thermoplastic Polymer Using Hot Gas Welding </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Prantasi%20Harmi%20%20Tjahjanti">Prantasi Harmi Tjahjanti</a>, <a href="https://publications.waset.org/abstracts/search?q=Iswanto%20Iswanto"> Iswanto Iswanto</a>, <a href="https://publications.waset.org/abstracts/search?q=Edi%20%20Widodo"> Edi Widodo</a>, <a href="https://publications.waset.org/abstracts/search?q=Sholeh%20%20Pamuji"> Sholeh Pamuji</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Materials of the thermoplastic polymer when they break is usually thrown away, or is recycled which requires a long process. The purpose of this study is to splice the broken thermoplastic polymer using hot gas welding with different variations of welding wire/electrodes. Materials of thermoplastic polymer used are Polyethylene (PE), Polypropylene (PP), and Polyvinyl chloride (PVC) by using welding wire like the three materials. The method is carried out by using hot gas welding; there are two materials that cannot be connected, namely PE with PVC welding wire, and PP with PVC welding wire. The permeable liquid penetrant test is PP with PE welding wire, and PVC with PE welding wire. The best bending test result with the longest elongation is PE with PE welding wire with a bending test value of 179.03 kgf/mm². The microstructure was all described in Scanning Electron Microscopy (SEM) observations. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=thermoplastic%20polymers" title="thermoplastic polymers">thermoplastic polymers</a>, <a href="https://publications.waset.org/abstracts/search?q=bending%20test" title=" bending test"> bending test</a>, <a href="https://publications.waset.org/abstracts/search?q=polyethylene%20%28PE%29" title=" polyethylene (PE)"> polyethylene (PE)</a>, <a href="https://publications.waset.org/abstracts/search?q=polypropylene%20%28PP%29" title=" polypropylene (PP)"> polypropylene (PP)</a>, <a href="https://publications.waset.org/abstracts/search?q=polyvinyl%20chloride%20%28PVC%29" title=" polyvinyl chloride (PVC)"> polyvinyl chloride (PVC)</a>, <a href="https://publications.waset.org/abstracts/search?q=hot%20gas%20welding" title=" hot gas welding"> hot gas welding</a>, <a href="https://publications.waset.org/abstracts/search?q=bending%20test" title=" bending test"> bending test</a> </p> <a href="https://publications.waset.org/abstracts/136833/bending-test-characteristics-for-splicing-of-thermoplastic-polymer-using-hot-gas-welding" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/136833.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">202</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">523</span> Friction Stir Welding Process as a Solid State Joining -A Review</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohd%20Anees%20Siddiqui">Mohd Anees Siddiqui</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20A.%20H.%20Jafri"> S. A. H. Jafri</a>, <a href="https://publications.waset.org/abstracts/search?q=Shahnawaz%20Alam"> Shahnawaz Alam</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Through this paper an attempt is made to review a special welding technology of friction stir welding (FSW) which is a solid-state joining. Friction stir welding is used for joining of two plates which are applied compressive force by using fixtures over the work table. This is a non consumable type welding technique in which a rotating tool of cylindrical shape is used. Process parameters such as tool geometry, joint design and process speed are discussed in the paper. Comparative study of Friction stir welding with other welding techniques such as MIG, TIG & GMAW is also done. Some light is put on several major applications of friction stir welding in different industries. Quality and environmental aspects of friction stir welding is also discussed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=friction%20stir%20welding%20%28FSW%29" title="friction stir welding (FSW)">friction stir welding (FSW)</a>, <a href="https://publications.waset.org/abstracts/search?q=process%20parameters" title=" process parameters"> process parameters</a>, <a href="https://publications.waset.org/abstracts/search?q=tool" title=" tool"> tool</a>, <a href="https://publications.waset.org/abstracts/search?q=solid%20state%20joining%20processes" title=" solid state joining processes "> solid state joining processes </a> </p> <a href="https://publications.waset.org/abstracts/24239/friction-stir-welding-process-as-a-solid-state-joining-a-review" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/24239.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">502</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">522</span> Mechanical and Microstructural Properties of SA 210 Gr. C Pipes Welded by Tungsten Inert Gas</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=H.%20Demirta%C5%9F">H. Demirtaş</a>, <a href="https://publications.waset.org/abstracts/search?q=%C4%B0.%20H.%20Kara"> İ. H. Kara</a>, <a href="https://publications.waset.org/abstracts/search?q=H.%20Ahlatc%C4%B1"> H. Ahlatcı</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Welding failures of steel pipes in power plants usually occur in weld zones. This is similar for the economizer, water walls and superheaters in the power plants where SA 210 Gr. C steel pipes are used. Although these steel pipes have very good welding properties, the welding parameters are also important for the welding life. Welding processes of this pipes are carried out by TIG and SMA techniques. In this study SA 210 Gr. C steel pipes were welded by TIG method and investigated how PWHT affected the welding properties. The results show that this steel does not require post weld heat treatment. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=SA%20210%20Gr.%20C%20steel%20pipes" title="SA 210 Gr. C steel pipes">SA 210 Gr. C steel pipes</a>, <a href="https://publications.waset.org/abstracts/search?q=TIG%20welding" title=" TIG welding"> TIG welding</a>, <a href="https://publications.waset.org/abstracts/search?q=HAZ%20region" title=" HAZ region"> HAZ region</a>, <a href="https://publications.waset.org/abstracts/search?q=Widmanstatten%20ferrite" title=" Widmanstatten ferrite"> Widmanstatten ferrite</a> </p> <a href="https://publications.waset.org/abstracts/62986/mechanical-and-microstructural-properties-of-sa-210-gr-c-pipes-welded-by-tungsten-inert-gas" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/62986.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">298</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">521</span> Operational Advantages of Tungsten Inert Gas over Metal Inert Gas Welding Process</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Emmanuel%20Ogundimu">Emmanuel Ogundimu</a>, <a href="https://publications.waset.org/abstracts/search?q=Esther%20Akinlabi"> Esther Akinlabi</a>, <a href="https://publications.waset.org/abstracts/search?q=Mutiu%20Erinosho"> Mutiu Erinosho</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this research, studies were done on the material characterization of type 304 austenitic stainless steel weld produced by TIG (Tungsten Inert Gas) and MIG (Metal Inert Gas) welding processes. This research is aimed to establish optimized process parameters that will result in a defect-free weld joint, homogenous distribution of the iron (Fe), chromium (Cr) and nickel (Ni) was observed at the welded joint of all the six samples. The welded sample produced at the current of 170 A by TIG welding process had the highest ultimate tensile strength (UTS) value of 621 MPa at the welds zone, and the welded sample produced by MIG process at the welding current of 150 A had the lowest UTS value of 568 MPa. However, it was established that TIG welding process is more appropriate for the welding of type 304 austenitic stainless steel compared to the MIG welding process. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=microhardness" title="microhardness">microhardness</a>, <a href="https://publications.waset.org/abstracts/search?q=microstructure" title=" microstructure"> microstructure</a>, <a href="https://publications.waset.org/abstracts/search?q=tensile" title=" tensile"> tensile</a>, <a href="https://publications.waset.org/abstracts/search?q=MIG%20welding" title=" MIG welding"> MIG welding</a>, <a href="https://publications.waset.org/abstracts/search?q=process" title=" process"> process</a>, <a href="https://publications.waset.org/abstracts/search?q=tensile" title=" tensile"> tensile</a>, <a href="https://publications.waset.org/abstracts/search?q=shear%20stress%20TIG%20welding" title=" shear stress TIG welding"> shear stress TIG welding</a>, <a href="https://publications.waset.org/abstracts/search?q=TIG-MIG%20welding" title=" TIG-MIG welding"> TIG-MIG welding</a> </p> <a href="https://publications.waset.org/abstracts/104565/operational-advantages-of-tungsten-inert-gas-over-metal-inert-gas-welding-process" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/104565.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">192</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">520</span> Development of Orbital TIG Welding Robot System for the Pipe</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Dongho%20Kim">Dongho Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Sung%20Choi"> Sung Choi</a>, <a href="https://publications.waset.org/abstracts/search?q=Kyowoong%20Pee"> Kyowoong Pee</a>, <a href="https://publications.waset.org/abstracts/search?q=Youngsik%20Cho"> Youngsik Cho</a>, <a href="https://publications.waset.org/abstracts/search?q=Seungwoo%20Jeong"> Seungwoo Jeong</a>, <a href="https://publications.waset.org/abstracts/search?q=Soo-Ho%20Kim"> Soo-Ho Kim</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study is about the orbital TIG welding robot system which travels on the guide rail installed on the pipe, and welds and tracks the pipe seam using the LVS (Laser Vision Sensor) joint profile data. The orbital welding robot system consists of the robot, welder, controller, and LVS. Moreover we can define the relationship between welding travel speed and wire feed speed, and we can make the linear equation using the maximum and minimum amount of weld metal. Using the linear equation we can determine the welding travel speed and the wire feed speed accurately corresponding to the area of weld captured by LVS. We applied this orbital TIG welding robot system to the stainless steel or duplex pipe on DSME (Daewoo Shipbuilding and Marine Engineering Co. Ltd.,) shipyard and the result of radiographic test is almost perfect. (Defect rate: 0.033%). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=adaptive%20welding" title="adaptive welding">adaptive welding</a>, <a href="https://publications.waset.org/abstracts/search?q=automatic%20welding" title=" automatic welding"> automatic welding</a>, <a href="https://publications.waset.org/abstracts/search?q=pipe%20welding" title=" pipe welding"> pipe welding</a>, <a href="https://publications.waset.org/abstracts/search?q=orbital%20welding" title=" orbital welding"> orbital welding</a>, <a href="https://publications.waset.org/abstracts/search?q=laser%20vision%20sensor" title=" laser vision sensor"> laser vision sensor</a>, <a href="https://publications.waset.org/abstracts/search?q=LVS" title=" LVS"> LVS</a>, <a href="https://publications.waset.org/abstracts/search?q=welding%20D%2FB" title=" welding D/B "> welding D/B </a> </p> <a href="https://publications.waset.org/abstracts/1631/development-of-orbital-tig-welding-robot-system-for-the-pipe" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/1631.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">688</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">519</span> Optimisation of Nitrogen as a Protective Gas via the Alternating Shielding Gas Technique in the Gas Metal Arc Welding Process </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20P.%20E.%20E%20Silva">M. P. E. E Silva</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20M.%20Galloway"> A. M. Galloway</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20I.%20Toumpis"> A. I. Toumpis</a> </p> <p class="card-text"><strong>Abstract:</strong></p> An increasing concern exists in the welding industry in terms of faster joining processes. Methods such as the alternation between shielding gases such Ar, CO₂ and He have been able to provide improved penetration of the joint, reduced heat transfer to the workpiece, and increased travel speeds of the welding torch. Nitrogen as a shielding gas is not desirable due to its reactive behavior within the arc plasma, being absorbed by the molten pool during the welding process. Below certain amounts, nitrogen is not harmful. However, the nitrogen threshold is reduced during the solidification of the joint, and if its subsequent desorption is not completed on time, gas entrapment and blowhole formation may occur. The present study expanded the use of the alternating shielding gas method in the gas metal arc welding (GMAW) process by alternately supplying Ar/5%N₂ and He. Improvements were introduced in terms of joint strength and grain refinement. Microstructural characterization findings showed porosity-free welds with reduced inclusion formation while mechanical tests such as tensile and bend tests confirmed the reinforcement of the joint by the addition of nitrogen. Additionally, significant reductions of the final distortion of the workpiece were found after the welding procedure as well as decreased heat affected zones and temperatures of the weld. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=alternating%20shielding%20gas%20method" title="alternating shielding gas method">alternating shielding gas method</a>, <a href="https://publications.waset.org/abstracts/search?q=GMAW" title=" GMAW"> GMAW</a>, <a href="https://publications.waset.org/abstracts/search?q=grain%20refinement" title=" grain refinement"> grain refinement</a>, <a href="https://publications.waset.org/abstracts/search?q=nitrogen" title=" nitrogen"> nitrogen</a>, <a href="https://publications.waset.org/abstracts/search?q=porosity" title=" porosity"> porosity</a>, <a href="https://publications.waset.org/abstracts/search?q=mechanical%20testing" title=" mechanical testing"> mechanical testing</a> </p> <a href="https://publications.waset.org/abstracts/105182/optimisation-of-nitrogen-as-a-protective-gas-via-the-alternating-shielding-gas-technique-in-the-gas-metal-arc-welding-process" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/105182.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">110</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">518</span> Experimental and Numerical Investigation of Micro-Welding Process and Applications in Digital Manufacturing</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Khaled%20Al-Badani">Khaled Al-Badani</a>, <a href="https://publications.waset.org/abstracts/search?q=Andrew%20Norbury"> Andrew Norbury</a>, <a href="https://publications.waset.org/abstracts/search?q=Essam%20Elmshawet"> Essam Elmshawet</a>, <a href="https://publications.waset.org/abstracts/search?q=Glynn%20Rotwell"> Glynn Rotwell</a>, <a href="https://publications.waset.org/abstracts/search?q=Ian%20Jenkinson"> Ian Jenkinson </a>, <a href="https://publications.waset.org/abstracts/search?q=James%20Ren"> James Ren</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Micro welding procedures are widely used for joining materials, developing duplex components or functional surfaces, through various methods such as Micro Discharge Welding or Spot Welding process, which can be found in the engineering, aerospace, automotive, biochemical, biomedical and numerous other industries. The relationship between the material properties, structure and processing is very important to improve the structural integrity and the final performance of the welded joints. This includes controlling the shape and the size of the welding nugget, state of the heat affected zone, residual stress, etc. Nowadays, modern high volume productions require the welding of much versatile shapes/sizes and material systems that are suitable for various applications. Hence, an improved understanding of the micro welding process and the digital tools, which are based on computational numerical modelling linking key welding parameters, dimensional attributes and functional performance of the weldment, would directly benefit the industry in developing products that meet current and future market demands. This paper will introduce recent work on developing an integrated experimental and numerical modelling code for micro welding techniques. This includes similar and dissimilar materials for both ferrous and non-ferrous metals, at different scales. The paper will also produce a comparative study, concerning the differences between the micro discharge welding process and the spot welding technique, in regards to the size effect of the welding zone and the changes in the material structure. Numerical modelling method for the micro welding processes and its effects on the material properties, during melting and cooling progression at different scales, will also be presented. Finally, the applications of the integrated numerical modelling and the material development for the digital manufacturing of welding, is discussed with references to typical application cases such as sensors (thermocouples), energy (heat exchanger) and automotive structures (duplex steel structures). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=computer%20modelling" title="computer modelling">computer modelling</a>, <a href="https://publications.waset.org/abstracts/search?q=droplet%20formation" title=" droplet formation"> droplet formation</a>, <a href="https://publications.waset.org/abstracts/search?q=material%20distortion" title=" material distortion"> material distortion</a>, <a href="https://publications.waset.org/abstracts/search?q=materials%20forming" title=" materials forming"> materials forming</a>, <a href="https://publications.waset.org/abstracts/search?q=welding" title=" welding"> welding</a> </p> <a href="https://publications.waset.org/abstracts/53285/experimental-and-numerical-investigation-of-micro-welding-process-and-applications-in-digital-manufacturing" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/53285.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">255</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">517</span> Effect of Welding Current on Mechanical Properties and Microstructure of Tungsten Inert Gas Welding of Type-304 Austenite Stainless Steel</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Emmanuel%20Ogundimu">Emmanuel Ogundimu</a>, <a href="https://publications.waset.org/abstracts/search?q=Esther%20Akinlabi"> Esther Akinlabi</a>, <a href="https://publications.waset.org/abstracts/search?q=Mutiu%20Erinosho"> Mutiu Erinosho</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The aim of this paper is to study the effect of welding current on the microstructure and the mechanical properties. Material characterizations were conducted on a 6 mm thick plates of type-304 austenite stainless steel, welded by TIG welding process at two different welding currents of 150 A (Sample F3) and 170 A (Sample F4). The tensile strength and the elongation obtained from sample F4 weld were approximately 584 MPa and 19.3 %; which were higher than sample F3 weld. The average microhardness value of sample F4 weld was found to be 235.7 HV, while that of sample F3 weld was 233.4 HV respectively. Homogenous distribution of iron (Fe), chromium (Cr) and nickel (Ni) were observed at the welded joint of the two samples. The energy dispersive spectroscopy (EDS) analysis revealed that Fe, Cr, and Ni made up the composition formed in the weld zone. The optimum welding current of 170 A for TIG welding of type-304 austenite stainless steel can be recommended for high-tech industrial applications. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=microhardness" title="microhardness">microhardness</a>, <a href="https://publications.waset.org/abstracts/search?q=microstructure" title=" microstructure"> microstructure</a>, <a href="https://publications.waset.org/abstracts/search?q=tensile" title=" tensile"> tensile</a>, <a href="https://publications.waset.org/abstracts/search?q=MIG%20welding" title=" MIG welding"> MIG welding</a>, <a href="https://publications.waset.org/abstracts/search?q=process" title=" process"> process</a>, <a href="https://publications.waset.org/abstracts/search?q=tensile" title=" tensile"> tensile</a>, <a href="https://publications.waset.org/abstracts/search?q=shear%20stress%20TIG%20welding" title=" shear stress TIG welding"> shear stress TIG welding</a>, <a href="https://publications.waset.org/abstracts/search?q=TIG-MIG%20welding" title=" TIG-MIG welding"> TIG-MIG welding</a> </p> <a href="https://publications.waset.org/abstracts/104566/effect-of-welding-current-on-mechanical-properties-and-microstructure-of-tungsten-inert-gas-welding-of-type-304-austenite-stainless-steel" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/104566.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">194</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">516</span> Characterization of Two Hybrid Welding Techniques on SA 516 Grade 70 Weldments</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20T.%20Z.%20Butt">M. T. Z. Butt</a>, <a href="https://publications.waset.org/abstracts/search?q=T.%20Ahmad"> T. Ahmad</a>, <a href="https://publications.waset.org/abstracts/search?q=N.%20A.%20Siddiqui"> N. A. Siddiqui</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Commercially SA 516 Grade 70 is frequently used for the manufacturing of pressure vessels, boilers and storage tanks etc. in fabrication industry. Heat input is the major parameter during welding that may bring significant changes in the microstructure as well as the mechanical properties. Different welding technique has different heat input rate per unit surface area. Materials with large thickness are dealt with different combination of welding techniques to achieve required mechanical properties. In the present research two schemes: Scheme 1: SMAW (Shielded Metal Arc Welding) & GTAW (Gas Tungsten Arc Welding) and Scheme 2: SMAW & SAW (Submerged Arc Welding) of hybrid welding techniques have been studied. The purpose of these schemes was to study hybrid welding effect on the microstructure and mechanical properties of the weldment, heat affected zone and base metal area. It is significant to note that the thickness of base plate was 12 mm, also welding conditions and parameters were set according to ASME Section IX. It was observed that two different hybrid welding techniques performed on two different plates demonstrated that the mechanical properties of both schemes are more or less similar. It means that the heat input, welding techniques and varying welding operating conditions & temperatures did not make any detrimental effect on the mechanical properties. Hence, the hybrid welding techniques mentioned in the present study are favorable to implicate for the industry using the plate thickness around 12 mm thick. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=grade%2070" title="grade 70">grade 70</a>, <a href="https://publications.waset.org/abstracts/search?q=GTAW" title=" GTAW"> GTAW</a>, <a href="https://publications.waset.org/abstracts/search?q=hybrid%20welding" title=" hybrid welding"> hybrid welding</a>, <a href="https://publications.waset.org/abstracts/search?q=SAW" title=" SAW"> SAW</a>, <a href="https://publications.waset.org/abstracts/search?q=SMAW" title=" SMAW"> SMAW</a> </p> <a href="https://publications.waset.org/abstracts/51031/characterization-of-two-hybrid-welding-techniques-on-sa-516-grade-70-weldments" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/51031.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">339</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">515</span> Wobbled Laser Beam Welding for Macro-to Micro-Fabrication Process</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Farzad%20Vakili-Farahani">Farzad Vakili-Farahani</a>, <a href="https://publications.waset.org/abstracts/search?q=Joern%20Lungershausen"> Joern Lungershausen</a>, <a href="https://publications.waset.org/abstracts/search?q=Kilian%20Wasmer"> Kilian Wasmer</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Wobbled laser beam welding, fast oscillations of a tiny laser beam within a designed path (weld geometry) during the laser pulse illumination, opens new possibilities to improve the marco-to micro-manufacturing process. The present work introduces the wobbled laser beam welding as a robust welding strategy for improving macro-to micro-fabrication process, e.g., the laser processing for gap-bridging and packaging industry. The typical requisites and relevant equipment for the development of a wobbled laser processing unit are addressed, including a suitable laser source, light delivery system, optics, proper beam deflection system and the design geometry. In addition, experiments have been carried out on titanium plate to compare the results of wobbled laser welding with conventional pulsed laser welding. As compared to the pulsed laser welding, the wobbled laser welding offers a much greater fusion area (i.e. additional molten material) while minimizing the HAZ and provides a better confinement of the material microstructural changes. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=wobbled%20laser%20beam%20welding" title="wobbled laser beam welding">wobbled laser beam welding</a>, <a href="https://publications.waset.org/abstracts/search?q=wobbling%20function" title=" wobbling function"> wobbling function</a>, <a href="https://publications.waset.org/abstracts/search?q=beam%20oscillation" title=" beam oscillation"> beam oscillation</a>, <a href="https://publications.waset.org/abstracts/search?q=micro%20welding" title=" micro welding"> micro welding</a> </p> <a href="https://publications.waset.org/abstracts/56603/wobbled-laser-beam-welding-for-macro-to-micro-fabrication-process" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/56603.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">328</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">514</span> Effect of Heat Treatment on the Microstructural Evolution in Weld Region of X70 Pipeline Steel</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=K.%20Digheche">K. Digheche</a>, <a href="https://publications.waset.org/abstracts/search?q=K.%20Saadi"> K. Saadi</a>, <a href="https://publications.waset.org/abstracts/search?q=Z.%20Boumerzoug"> Z. Boumerzoug</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Welding is one of the most important technological processes used in many branches of industry such as industrial engineering, shipbuilding, pipeline fabrication among others. Generally, welding is the preferred joining method and most common steels are weldable. This investigation is a contribution to scientific work of welding of low carbon steel. This work presents the results of the isothermal heat treatment effect at 200, 400 and 600 °C on microstructural evolution in weld region of X70 pipeline steel. The welding process has been realized in three passes by industrial arc welding. We have found that the heat treatments cause grain growth reaction. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=heat%20treatments" title="heat treatments">heat treatments</a>, <a href="https://publications.waset.org/abstracts/search?q=low%20carbon%20steel" title=" low carbon steel"> low carbon steel</a>, <a href="https://publications.waset.org/abstracts/search?q=microstructures" title=" microstructures"> microstructures</a>, <a href="https://publications.waset.org/abstracts/search?q=welding" title=" welding"> welding</a> </p> <a href="https://publications.waset.org/abstracts/18352/effect-of-heat-treatment-on-the-microstructural-evolution-in-weld-region-of-x70-pipeline-steel" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/18352.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">460</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">513</span> BLDC Motor Design Considering Core Loss Caused by Welding</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hyun-Seok%20Hong">Hyun-Seok Hong</a>, <a href="https://publications.waset.org/abstracts/search?q=In-Gun%20Kim"> In-Gun Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Ye-Jun%20Oh"> Ye-Jun Oh</a>, <a href="https://publications.waset.org/abstracts/search?q=Ju%20Lee"> Ju Lee</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper deals with the effects of welding performed for the manufacture of laminations in a stator in the case of prototype motors that are manufactured in small quantity. As a result of performing the no-load test for an IPM (interior permanent magnet)-type BLDC (blushless direct current) motor manufactured by welding both inside and outside of the stator, it was found that more DC input than expected was provided. To verify the effects of welding, a stator was re-manufactured by bonding, and DC inputs provided during the no-load test were compared. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=welding" title="welding">welding</a>, <a href="https://publications.waset.org/abstracts/search?q=stator" title=" stator"> stator</a>, <a href="https://publications.waset.org/abstracts/search?q=Eddy%20current" title=" Eddy current"> Eddy current</a>, <a href="https://publications.waset.org/abstracts/search?q=BLDC" title=" BLDC"> BLDC</a> </p> <a href="https://publications.waset.org/abstracts/41389/bldc-motor-design-considering-core-loss-caused-by-welding" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/41389.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">563</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">512</span> Effect of Vibration Amplitude and Welding Force on Weld Strength of Ultrasonic Metal Welding</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ziad.%20Sh.%20Al%20Sarraf">Ziad. Sh. Al Sarraf</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Ultrasonic metal welding has been the subject of ongoing research and development, most recently concentrating on metal joining in miniature devices, for example to allow solder-free wire bonding. As well as at the small scale, there are also opportunities to research the joining of thicker sheet metals and to widen the range of similar and dissimilar materials that can be successfully joined using this technology. This study presents the design, characterisation and test of a lateral-drive ultrasonic metal spot welding device. The ultrasonic metal spot welding horn is modelled using finite element analysis (FEA) and its vibration behaviour is characterised experimentally to ensure ultrasonic energy is delivered effectively to the weld coupon. The welding stack and fixtures are then designed and mounted on a test machine to allow a series of experiments to be conducted for various welding and ultrasonic parameters. Weld strength is subsequently analysed using tensile-shear tests. The results show how the weld strength is particularly sensitive to the combination of clamping force and ultrasonic vibration amplitude of the welding tip, but there are optimal combinations of these and also limits that must be clearly identified. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ultrasonic%20welding" title="ultrasonic welding">ultrasonic welding</a>, <a href="https://publications.waset.org/abstracts/search?q=vibration%20amplitude" title=" vibration amplitude"> vibration amplitude</a>, <a href="https://publications.waset.org/abstracts/search?q=welding%20force" title=" welding force"> welding force</a>, <a href="https://publications.waset.org/abstracts/search?q=weld%20strength" title=" weld strength"> weld strength</a> </p> <a href="https://publications.waset.org/abstracts/41161/effect-of-vibration-amplitude-and-welding-force-on-weld-strength-of-ultrasonic-metal-welding" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/41161.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">368</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">511</span> Friction Stir Welding of Al-Mg-Mn Aluminum Alloy Plates: A Review</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=K.%20Subbaiah">K. Subbaiah</a>, <a href="https://publications.waset.org/abstracts/search?q=C.%20V.%20Jayakumar"> C. V. Jayakumar </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Friction stir welding is a solid state welding process. Friction stir welding process eliminates the defects found in fusion welding processes. It is environmentally friend process. 5000 and 6000 series aluminum alloys are widely used in the transportation industries. The Al-Mg-Mn (5000) and Al-Mg-Si (6000) alloys are preferably offer best combination of use in Marine construction. The medium strength and high corrosion resistant 5000 series alloys are the aluminum alloys, which are found maximum utility in the world. In this review, the tool pin profile, process parameters such as hardness, yield strength and tensile strength, and microstructural evolution of friction stir welding of Al-Mg-Mn alloys (5000 Series) have been discussed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Al-Mg-Mn%20alloys" title="Al-Mg-Mn alloys">Al-Mg-Mn alloys</a>, <a href="https://publications.waset.org/abstracts/search?q=friction%20stir%20welding" title=" friction stir welding"> friction stir welding</a>, <a href="https://publications.waset.org/abstracts/search?q=tool%20pin%20profile" title=" tool pin profile"> tool pin profile</a>, <a href="https://publications.waset.org/abstracts/search?q=microstructure%20and%20mechanical%20properties" title=" microstructure and mechanical properties"> microstructure and mechanical properties</a> </p> <a href="https://publications.waset.org/abstracts/17095/friction-stir-welding-of-al-mg-mn-aluminum-alloy-plates-a-review" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/17095.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">441</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">510</span> Friction Stir Welding of Aluminum Alloys: A Review</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=S.%20K.%20Tiwari">S. K. Tiwari</a>, <a href="https://publications.waset.org/abstracts/search?q=Dinesh%20Kumar%20Shukla"> Dinesh Kumar Shukla</a>, <a href="https://publications.waset.org/abstracts/search?q=R.%20Chandra"> R. Chandra</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Friction stir welding is a solid state joining process. High strength aluminum alloys are widely used in aircraft and marine industries. Generally, the mechanical properties of fusion-welded aluminum joints are poor. As friction stir welding occurs in the solid state, no solidification structures are created thereby eliminating the brittle and eutectic phases common in fusion welding of high strength aluminum alloys. In this review, the process parameters, microstructural evolution and effect of friction stir welding on the properties of weld specific to aluminum alloys have been discussed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=aluminum%20alloys" title="aluminum alloys">aluminum alloys</a>, <a href="https://publications.waset.org/abstracts/search?q=friction%20stir%20welding%20%28FSW%29" title=" friction stir welding (FSW)"> friction stir welding (FSW)</a>, <a href="https://publications.waset.org/abstracts/search?q=microstructure" title=" microstructure"> microstructure</a>, <a href="https://publications.waset.org/abstracts/search?q=Properties." title=" Properties. "> Properties. </a> </p> <a href="https://publications.waset.org/abstracts/2141/friction-stir-welding-of-aluminum-alloys-a-review" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/2141.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">417</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">509</span> Resistance Spot Welding of Boron Steel 22MnB5 with Complex Welding Programs</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Szymon%20Kowieski">Szymon Kowieski</a>, <a href="https://publications.waset.org/abstracts/search?q=Zygmunt%20Mikno"> Zygmunt Mikno</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The study involved the optimization of process parameters during resistance spot welding of Al-coated martensitic boron steel 22MnB5, applied in hot stamping, performed using a programme with a multiple current impulse mode and a programme with variable pressure force. The aim of this research work was to determine the possibilities of a growth in welded joint strength and to identify the expansion of a welding lobe. The process parameters were adjusted on the basis of welding process simulation and confronted with experimental data. 22MnB5 steel is known for its tendency to obtain high hardness values in weld nuggets, often leading to interfacial failures (observed in the study-related tests). In addition, during resistance spot welding, many production-related factors can affect process stability, e.g. welding lobe narrowing, and lead to the deterioration of quality. Resistance spot welding performed using the above-named welding programme featuring 3 levels of force made it possible to achieve 82% of welding lobe extension. Joints made using the multiple current impulse program, where the total welding time was below 1.4s, revealed a change in a peeling mode (to full plug) and an increase in weld tensile shear strength of 10%. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=22MnB5" title="22MnB5">22MnB5</a>, <a href="https://publications.waset.org/abstracts/search?q=hot%20stamping" title=" hot stamping"> hot stamping</a>, <a href="https://publications.waset.org/abstracts/search?q=interfacial%20fracture" title=" interfacial fracture"> interfacial fracture</a>, <a href="https://publications.waset.org/abstracts/search?q=resistance%20spot%20welding" title=" resistance spot welding"> resistance spot welding</a>, <a href="https://publications.waset.org/abstracts/search?q=simulation" title=" simulation"> simulation</a>, <a href="https://publications.waset.org/abstracts/search?q=single%20lap%20joint" title=" single lap joint"> single lap joint</a>, <a href="https://publications.waset.org/abstracts/search?q=welding%20lobe" title=" welding lobe"> welding lobe</a> </p> <a href="https://publications.waset.org/abstracts/68990/resistance-spot-welding-of-boron-steel-22mnb5-with-complex-welding-programs" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/68990.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">387</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">508</span> Radial Distortion Correction Based on the Concept of Verifying the Planarity of a Specimen</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Shih-Heng%20Tung">Shih-Heng Tung</a>, <a href="https://publications.waset.org/abstracts/search?q=Ming-Hsiang%20Shih"> Ming-Hsiang Shih</a>, <a href="https://publications.waset.org/abstracts/search?q=Wen-Pei%20Sung"> Wen-Pei Sung</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Because of the rapid development of digital camera and computer, digital image correlation method has drawn lots of attention recently and has been applied to a variety of fields. However, the image distortion is inevitable when the image is captured through a lens. This image distortion problem can result in an innegligible error while using digital image correlation method. There are already many different ways to correct the image distortion, and most of them require specific image patterns or precise control points. A new distortion correction method is proposed in this study. The proposed method is based on the fact that a flat surface should keep flat when it is measured using three-dimensional (3D) digital image measurement technique. Lens distortion can be divided into radial distortion, decentering distortion and thin prism distortion. Because radial distortion has a more noticeable influence than the other types of distortions, this method deals only with radial distortion. The simplified 3D digital image measurement technique is adopted to measure the surface coordinates of a flat specimen. Then the gradient method is applied to find the best correction parameters. A few experiments are carried out in this study to verify the correctness of this method. The results show that this method can achieve a good accuracy and it is suitable for both large and small distortion conditions. The most important advantage is that it requires neither mark with specific pattern nor precise control points. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=3D%20DIC" title="3D DIC">3D DIC</a>, <a href="https://publications.waset.org/abstracts/search?q=radial%20distortion" title=" radial distortion"> radial distortion</a>, <a href="https://publications.waset.org/abstracts/search?q=distortion%20correction" title=" distortion correction"> distortion correction</a>, <a href="https://publications.waset.org/abstracts/search?q=planarity" title=" planarity"> planarity</a> </p> <a href="https://publications.waset.org/abstracts/26168/radial-distortion-correction-based-on-the-concept-of-verifying-the-planarity-of-a-specimen" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/26168.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">551</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">507</span> Influences of Plunge Speed on Axial Force and Temperature of Friction Stir Spot Welding in Thin Aluminum A1100</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Suwarsono">Suwarsono</a>, <a href="https://publications.waset.org/abstracts/search?q=Ario%20S.%20Baskoro"> Ario S. Baskoro</a>, <a href="https://publications.waset.org/abstracts/search?q=Gandjar%20Kiswanto"> Gandjar Kiswanto</a>, <a href="https://publications.waset.org/abstracts/search?q=Budiono"> Budiono</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Friction Stir Welding (FSW) is a relatively new technique for joining metal. In some cases on aluminum joining, FSW gives better results compared with the arc welding processes, including the quality of welds and produces less distortion.FSW welding process for a light structure and thin materials requires small forces as possible, to avoid structure deflection. The joining process on FSW occurs because of melting temperature and compressive forces, the temperature generation of caused by material deformation and friction between the cutting tool and material. In this research, High speed rotation of spindle was expected to reduce the force required for deformation. The welding material was Aluminum A1100, with thickness of 0.4 mm. The tool was made of HSS material which was shaped by micro grinding process. Tool shoulder diameter is 4 mm, and the length of pin was 0.6 mm (with pin diameter= 1.5 mm). The parameters that varied were the plunge speed (2 mm/min, 3 mm/min, 4 mm/min). The tool speed is fixed at 33,000 rpm. Responses of FSSW parameters to analyze were Axial Force (Z-Force), Temperature and the Shear Strength of welds. Research found the optimum µFSSW parameters, it can be concluded that the most important parameters in the μFSSW process was plunge speed. lowest plunge speed (2 mm / min) causing the lowest axial force (110.40 Newton). The increases of plunge speed will increase the axial force (maximum Z-Farce= 236.03 Newton), and decrease the shear strength of welds. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=friction%20stir%20spot%20welding" title="friction stir spot welding">friction stir spot welding</a>, <a href="https://publications.waset.org/abstracts/search?q=aluminum%20A1100" title=" aluminum A1100"> aluminum A1100</a>, <a href="https://publications.waset.org/abstracts/search?q=plunge%20speed" title=" plunge speed"> plunge speed</a>, <a href="https://publications.waset.org/abstracts/search?q=axial%20force" title=" axial force"> axial force</a>, <a href="https://publications.waset.org/abstracts/search?q=shear%20strength" title=" shear strength"> shear strength</a> </p> <a href="https://publications.waset.org/abstracts/55161/influences-of-plunge-speed-on-axial-force-and-temperature-of-friction-stir-spot-welding-in-thin-aluminum-a1100" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/55161.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">310</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">506</span> High-Production Laser and Plasma Welding Technologies for High-Speed Vessels Production</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=V.%20M.%20Levshakov">V. M. Levshakov</a>, <a href="https://publications.waset.org/abstracts/search?q=N.%20A.%20Steshenkova"> N. A. Steshenkova</a>, <a href="https://publications.waset.org/abstracts/search?q=N.%20A.%20Nosyrev"> N. A. Nosyrev</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Application of hulls processing technologies, based on high-concentrated energy sources (laser and plasma technologies), allow improve shipbuilding production. It is typical for high-speed vessels construction using steel and aluminum alloys with high precision hulls required. Report describes high-performance technologies for plasma welding (using direct current of reversed polarity), laser, and hybrid laser-arc welding of hulls structures developed by JSC “SSTC”. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=flat%20sections" title="flat sections">flat sections</a>, <a href="https://publications.waset.org/abstracts/search?q=hybrid%20laser-arc%20welding" title=" hybrid laser-arc welding"> hybrid laser-arc welding</a>, <a href="https://publications.waset.org/abstracts/search?q=plasma%20welding" title=" plasma welding"> plasma welding</a>, <a href="https://publications.waset.org/abstracts/search?q=plasmatron" title=" plasmatron"> plasmatron</a> </p> <a href="https://publications.waset.org/abstracts/8894/high-production-laser-and-plasma-welding-technologies-for-high-speed-vessels-production" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/8894.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">448</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">505</span> Effect of Welding Processes on Tensile Behavior of Aluminum Alloy Joints</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Chaitanya%20Sharma">Chaitanya Sharma</a>, <a href="https://publications.waset.org/abstracts/search?q=Vikas%20Upadhyay"> Vikas Upadhyay</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Tripathi"> A. Tripathi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Friction stir welding and tungsten inert gas welding techniques were employed to weld armor grade aluminum alloy to investigate the effect of welding processes on tensile behavior of weld joints. Tensile tests, Vicker microhardness tests and optical microscopy were performed on developed weld joints and base metal. Welding process influenced tensile behavior and microstructure of weld joints. Friction stir welded joints showed tensile behavior better than tungsten inert gas weld joints. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=friction%20stir%20welding" title="friction stir welding">friction stir welding</a>, <a href="https://publications.waset.org/abstracts/search?q=microstructure" title=" microstructure"> microstructure</a>, <a href="https://publications.waset.org/abstracts/search?q=tensile%20properties" title=" tensile properties"> tensile properties</a>, <a href="https://publications.waset.org/abstracts/search?q=fracture%20locations" title=" fracture locations"> fracture locations</a> </p> <a href="https://publications.waset.org/abstracts/40159/effect-of-welding-processes-on-tensile-behavior-of-aluminum-alloy-joints" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/40159.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">447</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">504</span> Review of Friction Stir Welding of Dissimilar 5000 and 6000 Series Aluminum Alloy Plates</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=K.%20Subbaiah">K. Subbaiah </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Friction stir welding is a solid state welding process. Friction stir welding process eliminates the defects found in fusion welding processes. It is environmentally friend process. 5000 and 6000 series aluminum alloys are widely used in the transportation industries. The Al-Mg-Mn (5000) and Al-Mg-Si (6000) alloys are preferably offer best combination of use in Marine construction. The medium strength and high corrosion resistant 5000 series alloys are the aluminum alloys, which are found maximum utility in the world. In this review, the tool pin profile, process parameters such as hardness, yield strength and tensile strength, and microstructural evolution of friction stir welding of Al-Mg alloys 5000 Series and 6000 series have been discussed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=5000%20series%20and%206000%20series%20Al%20alloys" title="5000 series and 6000 series Al alloys">5000 series and 6000 series Al alloys</a>, <a href="https://publications.waset.org/abstracts/search?q=friction%20stir%20welding" title=" friction stir welding"> friction stir welding</a>, <a href="https://publications.waset.org/abstracts/search?q=tool%20pin%20profile" title=" tool pin profile"> tool pin profile</a>, <a href="https://publications.waset.org/abstracts/search?q=microstructure%20and%20properties" title=" microstructure and properties"> microstructure and properties</a> </p> <a href="https://publications.waset.org/abstracts/17281/review-of-friction-stir-welding-of-dissimilar-5000-and-6000-series-aluminum-alloy-plates" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/17281.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">465</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">503</span> Design, Analysis and Construction of a 250vac 8amps Arc Welding Machine</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Anthony%20Okechukwu%20Ifediniru">Anthony Okechukwu Ifediniru</a>, <a href="https://publications.waset.org/abstracts/search?q=Austin%20Ikechukwu%20Gbasouzor"> Austin Ikechukwu Gbasouzor</a>, <a href="https://publications.waset.org/abstracts/search?q=Isidore%20Uche%20Uju"> Isidore Uche Uju</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This article is centered on the design, analysis, construction, and test of a locally made arc welding machine that operates on 250vac with 8 amp output taps ranging from 60vac to 250vac at a fixed frequency, which is of benefit to urban areas; while considering its cost-effectiveness, strength, portability, and mobility. The welding machine uses a power supply to create an electric arc between an electrode and the metal at the welding point. A current selector coil needed for current selection is connected to the primary winding. Electric power is supplied to the primary winding of its transformer and is transferred to the secondary winding by induction. The voltage and current output of the secondary winding are connected to the output terminal, which is used to carry out welding work. The output current of the machine ranges from 110amps for low current welding to 250amps for high current welding. The machine uses a step-down transformer configuration for stepping down the voltage in order to obtain a high current level for effective welding. The welder can adjust the output current within a certain range. This allows the welder to properly set the output current for the type of welding that is being performed. The constructed arc welding machine was tested by connecting the work piece to it. Since there was no shock or spark from the transformer’s laminated core and was successfully used to join metals, it confirmed and validated the design. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=AC%20current" title="AC current">AC current</a>, <a href="https://publications.waset.org/abstracts/search?q=arc%20welding%20machine" title=" arc welding machine"> arc welding machine</a>, <a href="https://publications.waset.org/abstracts/search?q=DC%20current" title=" DC current"> DC current</a>, <a href="https://publications.waset.org/abstracts/search?q=transformer" title=" transformer"> transformer</a>, <a href="https://publications.waset.org/abstracts/search?q=welds" title=" welds"> welds</a> </p> <a href="https://publications.waset.org/abstracts/125450/design-analysis-and-construction-of-a-250vac-8amps-arc-welding-machine" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/125450.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">181</span> </span> </div> </div> <ul class="pagination"> <li class="page-item disabled"><span class="page-link">&lsaquo;</span></li> <li class="page-item active"><span class="page-link">1</span></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=welding%20distortion&page=2">2</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=welding%20distortion&page=3">3</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=welding%20distortion&page=4">4</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=welding%20distortion&page=5">5</a></li> <li class="page-item"><a class="page-link" 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