连续多点成形中的成形载荷分析

龚学鹏; 李明哲; 卢启鹏; 彭忠琦

doi:10.3788/OPE.20122006.1288

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连续多点成形中的成形载荷分析

微纳技术与精密机械 | 更新时间：2020-08-12

- 连续多点成形中的成形载荷分析
- Analysis on forming load in continuous multi-point forming
- 光学精密工程 2012年20卷第6期页码：1288-1295
- 作者机构：
  
  1. 中国科学院长春光学精密机械与物理研究所应用光学国家重点实验室,吉林长春,130033
  2. 吉林大学无模成形技术中心,吉林长春,130022
- 作者简介：
- 基金信息：
  
  国家863高技术研究发展计划资助项目(No.2009AA04Z117)();国家自然科学基金资助项目(No.50575090)()
- DOI：10.3788/OPE.20122006.1288
  中图分类号： TG306
- 收稿日期：2012-02-21，
  
  修回日期：2012-04-11，
  
  网络出版日期：2012-06-10，
  
  纸质出版日期：2012-06-10
- 稿件说明：
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龚学鹏, 李明哲, 卢启鹏, 彭忠琦. 连续多点成形中的成形载荷分析[J]. 光学精密工程, 2012,20(6): 1288-1295

GONG Xue-peng, LI Ming-zhe, LU Qi-peng, PENG Zhong-qi. Analysis on forming load in continuous multi-point forming[J]. Editorial Office of Optics and Precision Engineering, 2012,20(6): 1288-1295
龚学鹏, 李明哲, 卢启鹏, 彭忠琦. 连续多点成形中的成形载荷分析[J]. 光学精密工程, 2012,20(6): 1288-1295 DOI： 10.3788/OPE.20122006.1288.

GONG Xue-peng, LI Ming-zhe, LU Qi-peng, PENG Zhong-qi. Analysis on forming load in continuous multi-point forming[J]. Editorial Office of Optics and Precision Engineering, 2012,20(6): 1288-1295 DOI： 10.3788/OPE.20122006.1288.

摘要

研制了连续多点成形装置来完成三维曲面工件的高效、柔性加工

并对其成形载荷的变化趋势以及不同工艺参数对成形载荷的影响进行了研究。首先

介绍了连续多点成形原理;基于一定的假设条件

建立了成形载荷的理论公式;以双曲率元件为研究对象

建立有限元模型

分析了

方向载荷、

方向载荷以及合成载荷的变化情况。接着

分析了上辊压下量、板材厚度以及柔性辊曲率半径对成形载荷的影响。最后

设计出成形装置并进行实验。结果表明

方向载荷最大值为6.693 kN

成形载荷的最大值为6.716 kN

成形载荷主要由

方向载荷决定;

方向载荷最大值为1.412 kN

为驱动工件运动的力;随上辊压下量的增加、板材厚度的增加以及柔性辊曲率半径的减小

方向载荷均增加。成形载荷的变化情况与实际情况吻合

为成形装置的研制提供了指导作用。实验结果证明

连续多点成形是一种连续、高效、柔性的三维曲面成形方法。

Abstract

A Continuous Multi-point Forming (CMPF) equipment was developed to manufacture 3D surface parts in high efficiency and flexibility

and the historical changing of forming loads and the influences of different technical parameters on forming loads were analyzed. First

the principle of CMPF was introduced

and theoretical formulas of forming loads were established based on certain hypothetical conditions. By taking a double curvature part as a research object

a Finite Element Analysis(FEA) model was established

and the historical changings of

direction load

direction load and equivalent load were analyzed. Furthermore

the influences of press displacement

thickness

and curvature radius of a flexible roller on forming loads were analyzed. Finally

the equipment was designed

and experiments were carried out. Results indicate that the maximum value of

direction load is 6.693 kN

maximum of forming load is 6.716 kN

and the forming load is made up of

direction load nearly. Moreover

the maximum value of

direction load is 1.412 kN

which is considered as a driving force. Along with the increases of press displacement and thickness of sheet metal

the

direction load is increased. Along with the decrease of curvature radius of a flexible roller

the

direction load is increased. The changing situations of forming loads accord with practical situation

which offers a guidance for CMPF equipment. From experimental results

CMPF is a continuous

high efficiency and flexible forming method for 3-D surfaces.

关键词

Keywords

references

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