中厚板铝合金光纤激光+MIG复合热源焊残余应力的数值分析

doi:10.3901/JME.2018.02.077

机械工程学报 ›› 2018, Vol. 54 ›› Issue (2): 77-83.doi: 10.3901/JME.2018.02.077

• 特邀专栏:焊接过程测控与数值模拟 • 上一篇下一篇

中厚板铝合金光纤激光+MIG复合热源焊残余应力的数值分析

胥国祥, 郭庆虎, 胡庆贤, 朱杰, 刘朋, 潘海潮

江苏科技大学江苏省先进焊接技术重点实验室镇江 212003

收稿日期:2017-09-06 修回日期:2017-11-10 出版日期:2018-01-20 发布日期:2018-01-20
通讯作者: 胡庆贤(通信作者),男,1976年出生,博士,副教授,硕士研究生导师。主要研究方向为焊接过程数值模拟。E-mail:huqingxian@126.com
作者简介:胥国祥,男,1981年出生,博士,副教授,硕士研究生导师。主要研究方向为激光+电弧复合焊、摇动电弧窄间隙焊、焊接过程数值分析。E-mail:xugxiang@163.com
基金资助:
国家自然科学基金（51575252）、江苏省前瞻联合（BY2015065-02）和江苏省"青蓝工程"资助项目。

Numerical Analysis of Welding Residual Stress in Laser+MIG Hybrid Butt Welding of Medium-thick Aluminum Alloy

XU Guoxiang, GUO Qinghu, HU Qingxian, ZHU Jie, LIU Peng, PAN Haichao

Jiangsu Provincial Key Laboratory of Advanced Welding Technology, Jiangsu University of Science and Technology, Zhenjiang 212003

Received:2017-09-06 Revised:2017-11-10 Online:2018-01-20 Published:2018-01-20

摘要/Abstract

摘要： 基于热弹塑性理论性，建立铝合金激光+熔化极惰性气体保护焊（Metal inert gas，MIG）复合热源焊残余应力的三维数值分析模型。激光和电弧热输入分别采用双椭球体热源模型和热流密度峰值指数递增的锥体热源模型描述。利用所建模型，通过ANSYS有限元软件对12 mm厚铝合金复合焊对接接头残余应力进行模拟计算，研究其分布特征，并与MIG焊的计算结果进行比较。同时，将温度场与残余应力的计算结果与试验结果进行对比，验证模型的准确性。研究结果表明，在焊缝及近缝区，纵向拉应力及等效残余应力较大，两者应力峰值均低于材料的屈服强度。而相较于电弧作用区域，激光作用区域残余应力相对较高。焊趾处横向残余表现为拉应力，但应力峰值相对较低。与MIG多层多道焊相比，复合焊纵向应力和等效应力高应力区域明显较窄；焊件上表面复合焊应力峰值小于MIG焊，但下表面应力峰值则较MIG焊大。

关键词: 残余应力, 复合焊, 铝合金, 数值模拟

Abstract: Based on thermal-elastic-plastic theory, a three dimensional numerical model of residual stress in laser+metal inert gas (MIG) hybrid welding of aluminum alloy is developed. The laser and arc heat inputs are modeled as the double ellipsoid heat source and the cone heat source with exponentially enhanced power density along the central axis, respectively. Using the built model, the residual stress in hybrid butt welding of 12 mm thick aluminum alloy is calculated through ANSYS finite element software and its distribution feature is analyzed, which is also compared with that of MIG welding. The calculated results of temperature and residual stress fields are compared with the experimental data to validate the accuracy of the model. Results show that, in and near weld zone, both the longitudinal tensile stress and Von-Mises equivalent stress are higher, their peak values being lower than the yielding stress of base metal. In addition, the stress in laser action zone is larger than that in arc action domain. A transversal tensile stress is generated at weld toe but its peak value is small. Compared with those of multi-pass and multi-layer MIG welding, the high stress is narrower. The peak stress at top surface of workpiece in hybrid welding is lower than that in MIG welding. But, at the workpiece bottom surface, the former is greater than the latter.

Key words: aluminum alloy, hybrid welding, numerical simulation, residual stress

中图分类号:

TG456

胥国祥, 郭庆虎, 胡庆贤, 朱杰, 刘朋, 潘海潮. 中厚板铝合金光纤激光+MIG复合热源焊残余应力的数值分析[J]. 机械工程学报, 2018, 54(2): 77-83.

XU Guoxiang, GUO Qinghu, HU Qingxian, ZHU Jie, LIU Peng, PAN Haichao. Numerical Analysis of Welding Residual Stress in Laser+MIG Hybrid Butt Welding of Medium-thick Aluminum Alloy[J]. Journal of Mechanical Engineering, 2018, 54(2): 77-83.

参考文献

[1] 周万盛,姚君山. 铝及铝合金的焊接[M]. 北京:机械工业出版社,2006 ZHOU Wansheng,YAO Junshan. Welding of aluminum and its alloys[M]. Beijing:China Machine Press,2006.
[2] STAUFER H. Laser hybrid welding in the automotive industry[J]. Welding Journal,2007,86(10):36-40.
[3] BAGGER C,OLSEN F O. Review of laser hybrid welding[J]. Journal of Laser Application,2005,17(1):2-14.
[4] DEFALCO J. Practical application for hybrid laser welding[J]. Welding Journal,2007,86(10):47-50.
[5] KATAYAMA S,UCHIUMI S,MIZUTANI M,et al. Penetration and porosity prevention mechanism in YAG laser-MIG hybrid welding[J]. Welding International,2007,21,25-31.
[6] 张维明,武传松,秦国梁,等. 铝合金激光+脉冲GMAW焊焊缝成形的数值模拟[J]. 机械工程学报,2013,49(10):110-115. ZHANG Weiming,WU Chuansong,QIN Guoliang,et al. Prediction of weld shape and size for laser+GMAW-P hybrid welding of aluminum alloys[J]. Journal of Mechanical Engineering,2013,49(10):110-115.
[7] ZHANG C,GAO M,WANG D Z,et al. Relationship between pool characteristic and weld pool porosity in laser arc hybrid welding of AA6082 aluminum alloy[J]. Journal of Materials Processing Technology,2017,240:217-222.
[8] ASCARI A,FORTUNATO A,ORZI L,et al. The influence of process parameters on porosity formation in hybrid LASER-GMA welding of AA6082 aluminum alloy[J]. Optics & Technology,2012,44:1485-1490.
[9] ZHANG D Q,JIN X,GAO L X,et al. Effect of laser-arc hybrid welding on fracture and corrosion behavior of AA6061-T6 alloy[J]. Materials Science and Engineering A,2011,528:2748-2754.
[10] 胥国祥,武传松,秦国梁,等. 铝合金T型接头激光+ GMAW复合热源焊温度场的有限元分析[J]. 金属学报,2012,48(9):1033-1041. XU Guoxiang,WU Chuansong,QIN Guoliang,et al. Finite element analysis of temperature field in laser+GMAW hybrid welding for T-joint of aluminum alloy[J]. Acta Metallurgica Sinica,2012,48(9):1033-1041.
[11] MAZAR ATABAKI M,NIKODINOVSKI M,CHENIER P,et al. Experimental and numerical investigation of hybrid laser arc welding of aluminum alloy in the thick T-joint configuration[J]. Optics & Laser Technology,2014,59:68-92.
[12] XU G X,WU C S,MA X Z,et al. Numerical analysis of welding residual stress and distortion in laser+GMAW hybrid welding of aluminum alloy T-joint[J]. Acta Metallurgica Sinica,2013,26(3):353-360.
[13] KONG F R,MA J J,KOVACEVIC R. Numerical and experimental study of thermally induced residual stress in the hybrid laser-GMA welding process[J]. Journal of Materials Processing Technology,2011,211:1102-1111.
[14] ZHANG T,WU C S,QIN G L,et al. Thermo mechanical analysis for Laser+GMAW-P hybrid welding process[J]. Computational Materials Science,2010,47:848-856.
[15] JIN X Z,BERGER P,GRAF T. Multiple reflections and Fresnel absorption in an actual 3D keyhole during deep penetration laser welding[J]. Journal of Physics D:Applied Physics,2006,39:4073-4712.
[16] 刘川,张建勋,牛靖. 焊接动态约束变形三维多体耦合数值模拟[J]. 机械工程学报,2010,46(6):83-86. LIU Chuan,ZHANG Jianxun,NIU Jing. 3D multi-body coupling numerical simulation of welding dynamic distortion with restraints[J]. Journal of Mechanical Engineering,2010,46(6):83-86.
[17] 段永刚. 基于ANSYS软件的焊接应力变形工程预测[D]. 上海:上海交通大学,2003. DUAN Yonggang. Prediction of welding FEM deformation and stress distribution based on ANSYS[D]. Shanghai:Shanghai Jiao Tong University,2003.

中厚板铝合金光纤激光+MIG复合热源焊残余应力的数值分析

Numerical Analysis of Welding Residual Stress in Laser+MIG Hybrid Butt Welding of Medium-thick Aluminum Alloy

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价

[1]	舒林森, 王家胜, 白海清, 何雅娟, 王波. 磨损轴面激光熔覆过程的数值模拟及试验[J]. 机械工程学报, 2019, 55(9): 217-223.
[2]	徐海良, 徐聪, 曾义聪, 吴波. 固相浓度对深海采矿矿浆泵空化性能影响规律[J]. 机械工程学报, 2019, 55(8): 201-207.
[3]	闫德俊, 王赛, 郑文健, 余洋, 谢浩, 钟美达, 邹晓峰, 杨建国. 1561铝合金薄板随焊干冰激冷变形控制[J]. 机械工程学报, 2019, 55(6): 67-73.
[4]	逯世杰, 郑乔, 张超华, 王义峰, 邓德安. 不同有限元软件对Q390钢厚板T型接头焊接残余应力和变形预测精度与计算效率的比较[J]. 机械工程学报, 2019, 55(6): 11-22.
[5]	郑乔, 逯世杰, 李索, 林旭东, 王义峰, 邓德安. 熔敷顺序和管壁厚度对异种钢管板接头焊接残余应力与变形的影响[J]. 机械工程学报, 2019, 55(6): 46-53.
[6]	余陈, 陈静, 陈怀宁, 张宇鹏, 房卫萍. TC4钛合金磁控窄间隙TIG焊试板热处理前后三维应力[J]. 机械工程学报, 2019, 55(6): 61-66.
[7]	吴正人, 甄猛, 刘梅, 王松岭, 刘秋升. 压力旋流喷嘴喷雾冷却热传递特性数值模拟[J]. 机械工程学报, 2019, 55(4): 172-180.
[8]	蔡志刚, 陈晓川, 王迪, 鲍劲松. 碳碳复合材料的水射流钻孔技术研究[J]. 机械工程学报, 2019, 55(3): 226-232.
[9]	杨卓云, 赵长财, 董国疆, 陈光, 朱良金, 杜冰. 基于Lou-2013韧性断裂准则5182铝板成形极限研究[J]. 机械工程学报, 2019, 55(16): 47-57.
[10]	饶项炜, 顾冬冬, 席丽霞. 选区激光熔化成形碳纳米管增强铝基复合材料成形机制及力学性能研究[J]. 机械工程学报, 2019, 55(15): 1-9.
[11]	魏屹, 王永祯, 王文先, 张婷婷, 闫志峰. 一次爆炸焊接制备铝/镁/铝合金复合板的数值模拟[J]. 机械工程学报, 2019, 55(14): 37-42.
[12]	胡兴, 戴培元, 张超华, 李索, 邓德安. 合并焊道法对SUS304不锈钢平板对接接头焊接残余应力计算精度和效率的影响[J]. 机械工程学报, 2019, 55(12): 72-82.
[13]	张文武, 余志毅, 李泳江, 程学良. 叶片式气液混输泵全流道内流场特性分析[J]. 机械工程学报, 2019, 55(10): 168-174.
[14]	李昊, 丁晓红, 景大雷. 液冷通道分布优化设计的仿真和试验研究[J]. 机械工程学报, 2019, 55(10): 198-206.
[15]	闫牧夫, 卢琛, 张程菘. 基于等Biot数的ZL205A铝合金大型薄壁件准同步淬火微变形研究[J]. 机械工程学报, 2018, 54(9): 69-76.