Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : September 09, 2018 - September 12, 2018
The tailor welded blanks between aluminum (Al) alloy, A6061-T6, and stainless steel, SUS304, had been fabricated by a friction stir welding (FSW) technique. The FSW tool was offset to the Al side and the probe was inserted only into Al plate. Hardness and tensile tests of Al similar and Al/Steel dissimilar welds had been conducted. Hardness of softened area increased by post heat treatment. Tensile strength of the post-heat-treated dissimilar blank was about 8.5% higher than that of the blank without post heat treatment. The residual stresses were measured based on cos α method, revealing that the tensile stress was generated in the σxr and compressive stress was generated in the σyr.
