Transactions of Materials and Heat Treatment

Title：Investigation into the fine blanking process by matrix algebra of large deformation

Authors： Tsinghua University Wu Bejie

Unit：

KeyWords： L arge deformation Fine blanking Grid method

ClassificationCode：TG382

year,vol(issue):pagenumber：1997,22(4):10-13

Abstract：

This paper studys the mechanism of fine blanking process by matrix algebra of large de- formation and grid experiments.The experiment parameters include the clamping force and die clear- ance.The investigation results reveal the rules of the change of major principal strain,the direction and rigid body rotation with the process parameters.This study indicates that the rigid body rotation impli- cates a significance in fine blanking deformation.

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Reference：

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2　 R Johnston,B Fogg and A W JChisholm.An investi-gation into the fine blanking process,Pro.96 th Machine ToolDesign and Research Conf.,Birmingham,196 8.
3　孙伦宝 ,程补元 ,周曾猛 .精密冲裁变形过程的理论分析 .金属成形工艺 .1990 (3) .
4　 T C Hsu.A Study of L arge Deformation by MatrixAlgebra.Journal of Strain Analysis.196 6 ,1(4 ) .
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