2809 摩擦攪拌接合したアルミ合金/冷間圧延鋼板の疲労強度および成形性の評価(S35-2 溶接・接合の動向とその展開(2),S35 溶接・接合の動向とその展開)

抄録

Tensile strength, fatigue strength and deep drawability were investigated for the joined material consisting of aluminum alloy (A6061) and rolled steel plate (SPCC). The joining between the above different metals was made by friction stir welding method. The tensile and fatigue strengths of the joined material were at 85% and 77% of those of uniform A6061 alloy. After aging treatment, they were improved to 96% and 85%, respectively. On the other hand, the deep drawabiltiy of the joined material was the same as that of uniform A6061 alloy and it was independent with aging treatment.