吉林大学学报(工学版) ›› 2017, Vol. 47 ›› Issue (3): 876-883.doi: 10.13229/j.cnki.jdxbgxb201703026

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基于弯曲辊的三维曲面柔性轧制成形

伦凤艳1, 2, 付文智1, 李明哲1, 依卓1, 王欣桐1, 陈雪2   

  1. 1.吉林大学 辊锻工艺研究所,长春 130022;
    2.北华大学 机械工程学院,吉林省 吉林市 132021
  • 收稿日期:2016-11-01 出版日期:2017-05-20 发布日期:2017-05-20
  • 通讯作者: 付文智(1960-),男,教授,博士生导师.研究方向:锻压设备及液压控制系统的研制.E-mail:fwz@jlu.edu.cn
  • 作者简介:伦凤艳(1973-),女,博士研究生,讲师.研究方向:板料柔性成形技术与数值模拟.E-mail:745778915@qq.com
  • 基金资助:
    国家自然科学基金项目(51075186)

Forming of flexible rolling of three-dimensional surface based on bended rolls

LUN Feng-yan1, 2, FU Wen-zhi1, LI Ming-zhe1, YI Zhuo1, WANG Xin-tong1, CHEN Xue2   

  1. 1.Roll Forging Research Institute,Jilin University,Changchun 130022,China;
    2.Mechanical Engineering College,Beihua University,Jilin 132021,China
  • Received:2016-11-01 Online:2017-05-20 Published:2017-05-20

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摘要： 阐明了柔性轧制方法成形三维曲面的基本原理和两种典型曲面成形的控制方法,分析了板料变形区的应力、应变状态和3个主方向的变形及其相互关系。通过有限元方法模拟了两种曲面的成形过程,结果表明:成形鞍曲面和凸曲面时分别出现正、负宽展;无论是成形凸曲面还是鞍曲面,纵向纤维的相对伸长量越大,纵向变形越大。进行了成形试验,测量和分析结果表明:成形件与目标值相比,最大成形误差不超过3.2 mm,成形曲面质量好,回弹小。

关键词: 材料合成与加工工艺, 柔性轧制, 三维曲面, 变形分析, 成形模拟

Abstract: The forming principle of three-dimensional surface by flexible rolling and the control methods of two kind of typical surface forming are illustrated. The stress and strain states of the deformation zone are analyzed. The deformations and their relationship in the three principle directions are also analyzed. The forming process of two typical surfaces are simulated using finite element method. Simulation results show that the positive and negative spreads appear respectively when saddle and convex surfaces are formed. No matter of convex surface or saddle surface, the larger the relative elongation of longitudinal fibers is, and larger longitudinal deformation is. The flexible rolling forming experiments are conducted. The measurement and analysis results show that, compared with the target value, the maximum forming error is no more than 3.2 mm. Therefore, the quality of the forming surface is good and the springback is small.

Key words: material synthesis and processing technology, flexible rolling, three-dimensional surface, deformation analysis, forming simulation

中图分类号: 

  • TG306
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