Optimization of spot welding process parameters on dissimilar and unequal thickness of metal sheets by using Taguchi technique

Tota Pirdo Kasih, Angel Kharisma, Ajat Suryanto
2018 IOP Conference Series: Earth and Environment  
The objective of the present work is to optimize the process parameters of Resistance Spot Welding (RSW) of dissimilar steel sheets with unequal thickness used in automotive industry through evaluationof the responses in order to get the better mechanical properties. Various combination of applied current, weld time and electrode force as the selected parameters whichhave three levels each, have been investigated to obtain the optimal condition of a welding process. In this work all experiments
more » ... were carried out based on Taguchi experimental design of L9 orthogonal array. The values of spot weld tensile strength were decided as the response character to be optimized. Signal to noise ratio analysis and analysis of variance (ANOVA) were also conducted to determine the main significant effect of those parameters and the contribution percentage of each parameter. It has been found that the current welding time plays the most important/significant factor in welding process to control the spot weld performance. The experimental results confirm the validity of robust design by Taguchi method for parameter optimization and possible increasing of efficiency in resistance spot welding processes.
doi:10.1088/1755-1315/195/1/012036 fatcat:kw5zj5iqgbadtcyopma7labeha