Temperature Distribution Analysis in Pulse Gas Metal Arc Welding Process

Welding is the most preferable joining process used in industries. In the arc welding process the thermal cycle leads to residual stresses and displacement. In this paper Gaussian heat distribution model has been used for temperature field analysis and used 5 mm thick AA 5083 plates for experiment model and derived a good agreement between them. The numerical simulation of welding process is complex and takes more computational time, several assumptions are typically used in simulation for simplifying the process and to save the computational time. The complex analysis carried out in two steps first is transient thermal analysis and second is mechanical analysis which, displays the residual stresses and displacement. In this work, thermal analysis with the help of ANSYS tool carried out for Single V, butt joint aluminium base metal (AA5083) using Pulse Gas metal arc welding (GMAW-P) process. / butt weld . In this work we are using Gaussian heat distribution models and temperature dependent material properties for the simulation of filler metal disposition. An experiment was carried out to measure temperature distribution during the single pass GMAW-P process used a k type thermocouple attached to the plate. The results of the experiment compared with finite element analysis to confirm the accuracy of finite element code. In this work moving heat source model develops in ANSYS APDL code for a good agreement between numerical method and experiment results.