AZ31B 마그네슘 합금 판재의 OSU 드로우벤드 시험과 스프링백 측정

초록

The springback characteristics of AZ31B magnesium alloy sheet was investigated in OSU draw/bend test. after forming and it should be estimated and controlled to manufacture more precise products in sheet forming. Magnesium alloy sheets have unique mechanical properties such as high in-plane anisotropy/asymetry of yield stress and hardening response. So, there will be a difference in the prediction of springback with symetric mechanical properties for magnesium alloy sheets. In this work, the Strip draw/bend tests were conducted with various conditions - die radius, sheet thickness and controlled tensile force and the tendency of springback angle was observed from the tests.

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