| U型钢压弯的有限元分析与回弹预测 |
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| 引用本文： | 王大勇,李伟,陆兴,栾俏梅.U型钢压弯的有限元分析与回弹预测[J].模具工业,2010,36(4):19-22. |
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| 作者姓名： | 王大勇 李伟 陆兴 栾俏梅 |
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| 作者单位： | 1. 大连交通大学,轨道交通关键材料省重点实验室,辽宁,大连,116028
2. 大连机车车辆有限公司,工艺部,辽宁,大连,116022 |
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| 摘 要： | 采用压弯法对U型钢进行逐步冷弯成形分析。通过有限元和试验相结合的方式,得出较准确的回弹结果。经过数值模拟,发现变形过程产生的缺陷,在模具制造前修正了模具结构。在分析现有数据,参照板料成形设计公式的基础上,根据模拟结果,对板料成形的设计公式进行修正,在型材的弯曲凸模设计中引入相对弯曲半径系数K,设计出适合U型钢压弯的模具,在现场试验中取得了良好效果,生产出符合设计要求的工件。
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| 关 键 词： | U型钢 压弯 回弹 有限元分析 |
Finite element analysis and springback prediction of the press bending of U-shaped section steel part |
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| WANG Da-yong,LI Wei,LU Yang,LUAN Qiao-mei.Finite element analysis and springback prediction of the press bending of U-shaped section steel part[J].Die & Mould Industry,2010,36(4):19-22. |
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| Authors: | WANG Da-yong LI Wei LU Yang LUAN Qiao-mei |
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| Affiliation: | 1.Liaoning Key Material Laboratory for Railway/a>;Dalian Jiaotong University/a>;Dalian/a>;Liaoning 116028/a>;China/a>;2.Department of Technology Development/a>;Dalian Locomotive and Rolling Stock Co./a>;Ltd/a>;CNR Group/a>;Liaoning 116022/a>;China |
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| Abstract: | Analysis was made on the gradual cold-roll forming via press bending method for an U-shaped section steel part.A relatively accurate springback amount was obtained by using experiment and FEA and bending defects were found through numerical simulation.A design formula for the sheet metal forming was modified based on analysis of current data and simulation results.A relative bending radius coefficient K was introduced to the design of bending punch for the profile and a feasible press bending die for the U-... |
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| Keywords: | U-shaped section steel press bending springback finite element analysis （FEA） |
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