The aim of this paper was to determine an optimal brazing condition for dissimilar joining between SAPH 440 steel with 6061 aluminum alloy. The brazing variables investigated in this study encompassed brazing speed, brazing current, wire feed rate, and torch distance and its angle. Taguchi technique was employed as the experimental strategy, and response optimizations on shear strength were performed using the S/N ratio. Results indicated that brazing variables have given a significant effect on the shear strength behavior. The optimal brazing condition was at 540mm/min of brazing speed, 25 A of brazing current, 8m/min of wire feed rate, 3mm of torch distance, and 80 degree of torch angle. Lastly, the maximum shear strength prediction of the optimal condition was 3810.50N. Confirmation tests on the optimal brazing condition were 3451.21N.
Dissimilar joining for multi-materials structures
