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Thermal deformation of gas metal arc welding on aluminum alloy T-joints

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In this study, two main parameters; welding speed and welding voltage were used to evaluate the angular distortion, transverse shrinkage and longitudinal shrinkage occurred in GMAW process. The results show that the angular distortion is larger with lowest welding speed. | Thermal deformation of gas metal arc welding on aluminum alloy T-joints Engineering Solid Mechanics 2018 21-26 Contents lists available at GrowingScience Engineering Solid Mechanics homepage www.GrowingScience.com esm Thermal deformation of gas metal arc welding on aluminum alloy T-joints Mohd Idris Shah Ismail Mariyam Jameelah Bahari and Norsyafiqah Shuib Department of Mechanical and Manufacturing Engineering Faculty of Engineering Universiti Putra Malaysia 43400 Serdang Selangor Malaysia A R T I C L EI N F O ABSTRACT Article history Thermal deformations can reduce the product quality that causes loss of dimensional control Received 26 July 2017 and structural integrity. It may increase the manufacturing cost due to unfitted component. This Accepted 16 November 2017 paper deals with the thermal deformation on AA6061 aluminum alloy T-joint after exposed to Available online heat by gas metal arc welding GMAW process. In this study two main parameters welding 16 November 2017 Keywords speed and welding voltage were used to evaluate the angular distortion transverse shrinkage Gas metal arc welding and longitudinal shrinkage occurred in GMAW process. The results show that the angular Welding deformation distortion is larger with lowest welding speed. The transverse shrinkage is reduced gradually T-joint with increasing of welding speed and transverse shrinkage also linearly increasing with Aluminum alloy increasing of welding voltage. The magnitude of longitudinal shrinkage is much smaller than angular distortion and transverse shrinkage. Longitudinal shrinkage is insignificantly affected by changing the welding heat input. These findings are important to identify and minimize the unacceptable welding distortion in product manufacturing. 2018 by the authors licensee Growing Science Canada. 1. Introduction Thermal deformation is an unavoidable effect that might influence the accuracy of assembly and external appearance of the weld joint. It occurred due to local .