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Springback is a kind of typical defect in sheet metal punching. Although it could be resolved with mould surface modification, it is inefficient with traditional method. In this paper, a new method of mould surface modification was proposed. The new method converted the traditional method into an optimization problem. And then the mapping model and the optimization method would be studied further. Finally the proposed method was applied for springback offset. And the results showed that the method could resolve the springback offset issue effectively.

Research on The Springback Offset Based on MLS-SA