基于Visual-Environment的复杂结构薄壁件激光焊接工艺优化

doi:10.3901/JME.2017.14.150

机械工程学报 ›› 2017, Vol. 53 ›› Issue (14): 150-158.doi: 10.3901/JME.2017.14.150

基于Visual-Environment的复杂结构薄壁件激光焊接工艺优化

刘佳^1,2,3, 杨玉东^1,2,3, 石岩^1,2,3, 张宏^1,2,3, 陈星⁴

1. 长春理工大学机电工程学院长春 130022;
2. 长春理工大学激光加工吉林省高等学校工程研究中心长春 130022;
3. 长春理工大学国家国际科技合作基地(光学) 长春 130022;
4. 西南交通大学材料科学与工程学院成都 611756

收稿日期:2016-12-27 修回日期:2017-05-17 出版日期:2017-07-20 发布日期:2017-07-20
通讯作者: 刘佳(通信作者),男,1983年出生,博士,副教授。主要研究方向为激光加工技术及其数值模拟。E-mail:liujia@cust.edu.cn
基金资助:
国家装备预研基金金资助项目（40401050302）。

Numerical Simulation Analysis on Optimization of Laser Welding Process for the Complex Structural Thin-walled Part Based on Visual-Environment

LIU Jia^1,2,3, YANG Yudong^1,2,3, SHI Yan^1,2,3, ZHANG Hong^1,2,3, CHEN Xing⁴

1. College of Mechanical and Electric Engineering, Changchun University of Science and Technology, Changchun 130022;
2. Engineering Research Center of Laser Processing for Universities of Jilin Province, Changchun University of Science and Technology, Changchun 130022;
3. National Base of International Science and Technology Cooperation in Optics, Changchun University of Science and Technology, Changchun 130022;
4. School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 611756

Received:2016-12-27 Revised:2017-05-17 Online:2017-07-20 Published:2017-07-20

摘要/Abstract

摘要： 为了缩短试验周期、节约试验成本、提高试验效率，基于Visual-Environment软件平台，采用3D高斯热源模型对多焊缝复杂结构薄壁件激光焊接过程进行数值模拟计算。复杂结构薄壁件焊缝多达19条，为对接和搭接两种接头形式。首先采用试验与数值模拟计算相结合的方法对典型接头焊缝形貌进行优化。在此基础上，采用热循环曲线法对复杂结构薄壁件的焊接顺序和约束条件进行优化，获得了最优的焊接工艺。研究结果表明，采用3D高斯热源模型，选择合适的热源参数能够获得与实际激光焊接接头形貌较一致的温度场云图。采用优化后的焊接工艺所获得结构件的最大变形量与未优化的相比，由3mm减小至0.5mm以内，满足了实际生产需求。

关键词: 复杂结构薄壁件, 工艺优化, 激光焊接, 数值模拟分析

Abstract: In order to shorten the test period, save the test cost and improve the test efficiency, based on the Visual-Environment software platform, the 3D Gaussian heat source model is used to simulate the laser welding process of the multi-weld complex structure thin-walled material. The number of joints for thin-walled components is up to 19, including butt and overlap joint. The topography of the joint is optimized by the combination of experiment and numerical simulation. On this basis, the welding sequence and constraint condition of the composite thin-walled parts are optimized by the thermal cycling curve method, and the optimal welding process is obtained. The results show that the temperature field cloud image can be obtained by using the 3D Gaussian heat source model and choosing the appropriate heat source parameters to obtain the same shape of the actual laser welding joint. The maximum deformation of the structural parts obtained by the optimized welding process is reduced from 3 mm to less than 0.5 mm, which satisfies the actual production demand.

Key words: complex structural thin-walled part, laser welding, numerical simulation analysis, process optimization

中图分类号:

TG456

刘佳, 杨玉东, 石岩, 张宏, 陈星. 基于Visual-Environment的复杂结构薄壁件激光焊接工艺优化[J]. 机械工程学报, 2017, 53(14): 150-158.

LIU Jia, YANG Yudong, SHI Yan, ZHANG Hong, CHEN Xing. Numerical Simulation Analysis on Optimization of Laser Welding Process for the Complex Structural Thin-walled Part Based on Visual-Environment[J]. Journal of Mechanical Engineering, 2017, 53(14): 150-158.

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基于Visual-Environment的复杂结构薄壁件激光焊接工艺优化

Numerical Simulation Analysis on Optimization of Laser Welding Process for the Complex Structural Thin-walled Part Based on Visual-Environment

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