Experimental Investigation of Resistance Spot Welding between SS202 & SS409

Experimental Investigation of Resistance Spot Welding between SS202 & SS409
Author(s):
S.Sivaprabu, J.Balaji, G.Mullaiarasu, A.Ranjith, P.Nandhakumar, S.Umasankar
Keywords:
Optimization, RSW, Process Parameters, SS202, SS409.
Abstract
Resistance spot welding is a process which is widely used in the automotive industry to join steel parts of various thicknesses and types. The current practice in the automotive industry in determining the welding schedule, which will be used in the welding process, is based on welding table or experiences. This however may not be the optimum welding schedule that will give the best spot weld quality. This work concentrates on the parameter optimization when spot welding steels with dissimilar thickness and type using Taguchi Method. The experimentation in this work used a L9 orthogonal array with three factors with each factor having three levels. The three factors used are welding current, weld time and electrode force. In this experimental investigation found good mechanical strength at Current-4KA, Electrode force-2.5kg/cm2 and weld cycle of 8. According to the Taguchi design the optimized parameter value of dissimilar steel was current-4KA, Electrode force-2.5 Kg/cm2 and Weld cycle 10.
Article Details
Unique Paper ID: 145800 Publication Volume & Issue: Volume 4, Issue 11 Page(s): 272 - 276
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