冷滚打成形中滚打深度与回弹规律的仿真

摘要/Abstract

摘要： 为了有效地控制回弹对成形件精度的影响，针对变形量与回弹量之间的关系进行研究。依据冷滚打成形的基本原理，应用ABAQUS软件建立了有限元动态仿真模型，通过仿真获得了不同滚打深度下成形齿槽截面在切向、轴向和径向的变形规律与回弹量。由于动态仿真后工件内部的力处于不平衡状态，不能直接进行回弹求解，所以在动态仿真结果的基础上建立了静态仿真模型，通过静态分析获得了不同滚打深度成形齿槽截面各部分在切向、轴向和径向的回弹规律。在改装的实验设备上进行冷滚打成形实验，获得了工件廓形，并将其与相同工艺条件下的仿真结果进行比较，验证了仿真结果的正确性，为有效控制回弹对成形精度的影响提供了参考。

关键词: 冷滚打, 滚打深度, 回弹, 仿真

Abstract: In order to effectively control the effects of springback on formed part precisions, the relation between deformation and springback was studied. According to basic principles of cold roll-beating, a finite element dynamic simulation model was established by ABAQUS software, through simulations forming gullet section deformation laws and springbacks under of different roll-beating depths wre obtained in tangential direction, axial direction and radial direction. Because inner forces of workpiece in results of dynamic simulation were at unbalance states, the springbacks could not be directly solved, so a static simulation model was established based on results of dynamic simulations, and the depths of different roll-beatings of forming gullet section springback rules in tangential direction, axial direction and radial direction were determined by static analysis. Cold roll-beating experiments were carried out by using refit experimental equipment and workpiece profile shapes were obtained, compared with simulation results under the same processing conditions, and the results of simulation were validated, thus it provides references to effectively control the springback influences on forming precisions.

Key words: cold roll-beating, depth of roll-beating, springback;simulation

中图分类号:

TH161.1

梁小明, 李言, 魏凡智, 姚远, 吴学亮, 袁启龙, 杨明顺. 冷滚打成形中滚打深度与回弹规律的仿真[J]. 中国机械工程.

Liang Xiaoming, Li Yan, Wei Fanzhi, Yao Yuan, Wu Xueliang, Yuan Qilong, Yang Mingshun. Simulation on Depths of Roll-beating and Springback Rules of Cold Roll-beating Forming[J]. China Mechanical Engineering.

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