Abstract
In this research, the capability of the multipass welding advisor (MWA) is to be evaluated in analyzing the angular distortion that is induced by gas metal arc welding (GMAW) process used to join a combination of butt and T-joint with thickness of 9 mm. The MWA in SysWeld 2010 is applied to develop and compare 2D/3D finite element analysis (FEA) based on the thermal elastic–plastic approach with low manganese carbon steel S355J2G3 as parent and weld material. For this simulation, the heat source of GMAW follows the Goldak's double ellipsoid model that is available within the FEA code. Detailed procedures of MPA are presented throughout this study followed with a comparison between 2D and 3D results of distortion and computational time on the combined types. To validate the simulation results, a series of experiments was conducted on low carbon steel using robotic welding process, GMAW power source with shielding gas composition of Ar (80 %)/CO2 (20 %), and both-sided clamping method. It was established that the results of 3D simulation and experiments showed acceptable accuracy, while 2D results offers a fast solution analysis time in estimating distortion trend.
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Lidam, R.N., Manurung, Y.H.P., Haruman, E. et al. Angular distortion analysis of the multipass welding process on combined joint types using thermo-elastic–plastic FEM with experimental validation. Int J Adv Manuf Technol 69, 2373–2386 (2013). https://doi.org/10.1007/s00170-013-5184-6
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DOI: https://doi.org/10.1007/s00170-013-5184-6