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应用大变形理论矩阵法研究精冲变形机理
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英文标题：Investigation into the fine blanking process by matrix algebra of large deformation |
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作者：吴伯杰 |
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单位：清华大学!100084 |
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关键词：大变形 精密冲裁 网格法 |
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分类号：TG382 |
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出版年,卷(期):页码：1997,22(4):10-13 |
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摘要：
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应用大变形理论矩阵法和网格试验研究精密冲裁变形机理 ,实验参数包括压边力、模具间隙。研究结果揭示了变形区内最大主应变、主应变的方向和刚性转动随工艺参数变化的规律 ,研究表明刚性转动对精冲变形起着重要作用。
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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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基金项目：
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作者简介：
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参考文献：
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1 涂光琪 ,袁庆祥 ,牛金旺 .精冲变形过程分析及压边圈齿形参数的研究 .锻压技术 .1981,6 (2 ) .
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 ) .
5 R Sowerby,JL Duncan and E Chu.The Modeling ofSheet Metal Stamping.Int.J.Mech.Sci,Vol2 8,1986
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