Numerical Simulation for Process of Multi-Point Stretch Forming with Flexible Clamp Mode

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Numerical Simulation for Process of Multi-Point Stretch Forming with Flexible Clamp Mode

更新时间：2025-07-09

- Numerical Simulation for Process of Multi-Point Stretch Forming with Flexible Clamp Mode
- Vol. 42, Issue 9, Pages: 1160-1164(2008)
- 作者机构：
  
  吉林大学无模成形技术开发中心,长春,130025
- 作者简介：
- 基金信息：
- DOI：
  CLC： TG385.1
- Online First：10 September 2008，
  
  Published：2008
- 稿件说明：
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Numerical Simulation for Process of Multi-Point Stretch Forming with Flexible Clamp Mode[J]. 2008, 42(9): 1160-1164.
DOI：

Numerical Simulation for Process of Multi-Point Stretch Forming with Flexible Clamp Mode[J]. 2008, 42(9): 1160-1164. DOI：

摘要

采用动态显式有限元软件

对2024-O铝合金板材在传统夹持方式和柔性夹持方式下成形球面件的过程进行了数值模拟

对比分析了拉形过程中板材的应力和应变变化.结果表明

与传统夹持方式相比

在柔性夹持方式下得到的多点拉形件应力应变分布均匀

成形效果较好

而且可以提高材料的利用率.完成了相关的实验验证

结果表明:柔性夹持方式适用于多点拉形过程

验证了柔性夹持装置的可行性与实用性; 模拟结果与实验结果的误差基本在0.3～0.5 mm之间

验证了数值方法的准确性.

Abstract

The multi-point stretch forming process of spherical surface parts of aluminum alloy sheet metal with conventional clamp mode and the flexible clamp mode with different transition region were simulated by an explicit finite element software. The stress and strain of forming parts with different clamp modes were comparatively analyzed. The numerical simulation results show that the stress and strain distribution of forming part with the flexible clamp mode is well-proportioned

its forming quality gets better than that with conventional clamp equipment

and the material utilization is improved. A corresponding stretch forming test was conducted to verify the flexibility and feasibility of the flexible clamp mode for multi-point stretch forming process.

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references

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