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| 精冲压边与间隙的有限元模拟优化研究 |
| Finite Element Simulation of Fine Blanking and Die Clearance |
| Received:October 11, 2010 Revised:January 10, 2011 |
| DOI： |
| 中文关键词: 精冲 材料流动 冲裁间隙 断面质量 |
| 英文关键词: fine blanking material flow blanking clearance section quality |
| 基金项目:国家自然科学基金（50875094）；“高档数控机床与基础制造装备”科技重大专项课题（2009ZX04014-073） |
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| 中文摘要: |
| 运用DEFORM-2D软件对板料精冲过程中压边与间隙进行了数值模拟分析。将NormalC&L断裂准则应用于预测精冲韧性断裂，分析了不同压边力、压边方式、反顶力以及冲裁间隙对材料涡流流动特性、冲裁断面圆角和撕裂带的影响；根据模拟结果提出了新的工艺建议。 |
| 英文摘要: |
| This paper presents the numerical simulation results of fine blanking and die clearance using the rigid plastic finite element method(FEM) by the software DEFORM 2D. The material flow and section quality were investigated with respect to various blank holding forces, holding types, reverse punch force and blanking clearance by using the NormalC&L ductile fracture criteria. The new processing method has been suggested according to the simulation result. |
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