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薄板精密冲裁的变形过程和机理研究 被引量：6

The Procedure and Mechanics Research of Precision Blanking Deformation of Thin Sheet Metal
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摘要 本文构建了料厚为0.3mm的薄板精密冲裁变形有限元模型,运用该模型研究了薄板精密冲裁变形过程,分析结果显示冲裁断面质量与生产实际非常接近。论文分析了薄板精密冲裁变形过程中的静水应力的分布特征、影响机理。研究表明,强压边条件增加了静水压应力区域的范围和程度,从而延迟了裂纹的初始和发展,提高了冲裁断面的质量。 The finite element model for analyzing the blanking deformation of thin sheet metal with thickness 0.3mm has been constructed in the text. The FE model is used to study the blanking deformation procedure of thin sheet metal.The analysis results show that the blanking fracture surface quality has a good agreement with the practical situation. The distribution characteristics and effect mechanics of hydrostatic stress in precision blanking deformation procedure of thin sheet metal have been proposed. It indicates that strong pressure-pad-force enlarges the range and degree of the hydrostatic compression stress, which delays the initiation and development of the crack and improves the blanking fracture surface quality.
作者 黄珍媛 阮锋 周驰 王波
机构地区 华南理工大学机械与汽车工程学院
出处 《锻压装备与制造技术》 2009年第1期46-48,共3页 China Metalforming Equipment & Manufacturing Technology
关键词 机械制造 冲裁 薄板 数值模拟 Blanking Thin sheet metal Numerical simulation
分类号 TG386.2 [金属学及工艺—金属压力加工]
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参考文献17

  • 1秦泗吉.板材剪切与冲裁加工过程有限元模拟及实验研究.燕山大学学报,2001,.
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二级参考文献36

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共引文献162

同被引文献53

引证文献6

二级引证文献17

锻压装备与制造技术
2009年 第1期

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