用RG2000型微机控制电子万能试验机结合ARGUS板金成形网格应变测试系统对镀镍钢带进行了冲压成型试验,研究了镀镍钢带在不同压入深度下的应变分布.并用有限元软件ABAQUS对此过程进行了模拟验证.结果表明,杯形件底部区域应变变形不大,由圆角处开始逐渐增大,随着压入深度的增加,这种趋势越来越明显；实验和数值模拟同时证明镍镀层在凸模圆角处最易发生破坏,此处镀层厚度减薄率最大,约为11.08％.%Stamping forming was done on nickel plated steel strip by an RG2000 computer controlled electronic all purpose equipment combined with ARGUS optical forming analysis experimental system. The strain distribution under different punch penetrations was studied. And the finite element software ABAQUS was imported to simulate and verify this process. The results showed that small deformations at the bottom zone, high stretching at the sheet wall, these dilatation and contraction trends were more pronounced as the punch moved downwards. Both the experi-ment and numerical simulation proved that the most likely failure zone was around the punch radius and thinning ratio of the coating thickness here was the largest, up to 11.08%.
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