インサート材を用いたAl/Mg薄板の電磁圧接

抄録

Magnetic pulse welding with an insert sheet of A1050-O is effective for lap-joining of aluminum alloy A5052 and magnesium alloy AZ31. In this study, we investigated the optimum thickness of the insert sheet. We experimented with insert sheets 0.01, 0.02, 0.05, 0.1, 0.2 and 0.3 mm thick, respectively. Also, the A5052 and AZ31 sheets are the same 0.4 mm thick. These were welded when using insert sheet 0.05 mm, 0.1 mm, 0.2 mm and 0.3 mm thick, however not welded when using insert sheet 0.01 mm and 0.02 mm thick. The joint properties were evaluated by joint width and joint efficiency of weld. Joint width was measured by microscopic observation of the cross-section. Also, joint efficiency was calculated by the ultimate tensile strength of the joint and A5052. The joint width and the joint efficiency was the maximum value when the thickness of the insert sheet was 0.1 mm. The present results suggested that the optimum thickness of the insert sheet is 0.1 mm in this case.