| 异种钢激光-电弧焊复合焊接数值模拟 |
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| 引用本文： | 许新猴,赵小强,华鹏,李先芬,周伟.异种钢激光-电弧焊复合焊接数值模拟[J].精密成形工程,2015,7(4):71-75. |
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| 作者姓名： | 许新猴 赵小强 华鹏 李先芬 周伟 |
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| 作者单位： | 1. 合肥工业大学 材料科学与工程学院,合肥,230009
2. 合肥工业大学 材料科学与工程学院，合肥230009; 新加坡南洋理工大学 机械与宇航工程学院，新加坡639798 |
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| 摘 要： | 目的研究异种钢激光-GMAW复合焊接温度场以及应力场变化。方法运用ANSYS有限元分析软件,以5 mm厚D500钢和A514钢为研究对象,采用均匀分布的柱体热源与椭球热源组合的方法,建立了激光-GMAW焊接热源模型,对异种钢激光电弧复合焊接过程进行了模拟计算,并与实验所得的焊缝形状以及焊后残余应力进行了对比。结果结果表明,异种钢激光电弧复合焊接过程焊接变形以及残余应力实验结果与数值计算结果吻合较好。结论验证了锥体加柱体热源与椭球热源的组合热源模型在异种钢激光-GMAW复合焊接温度场及应力场模拟中的适用性,从而为不同焊接工艺条件下异种钢激光-GMAW复合焊接的焊缝形状和尺寸预测,提供了一种有效的途径。
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| 关 键 词： | 异种钢 热源模型 激光-GMAW复合焊 应力场 数值模拟 |
| 收稿时间： | 2015/5/25 0:00:00 |
| 修稿时间： | 2015/7/10 0:00:00 |
Simulation on Laser-GMAW Hybrid Welding of Heterogeneous Steel |
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| XU Xin-hou,ZHAO Xiao-qiang,HUA Peng,LI Xian-fen and ZHOU Wei.Simulation on Laser-GMAW Hybrid Welding of Heterogeneous Steel[J].Journal of Netshape Forming Engineering,2015,7(4):71-75. |
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| Authors: | XU Xin-hou ZHAO Xiao-qiang HUA Peng LI Xian-fen and ZHOU Wei |
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| Affiliation: | School of Material Science and Engineering, Hefei University of Technology, Hefei 230009, China,School of Material Science and Engineering, Hefei University of Technology, Hefei 230009, China,School of Material Science and Engineering, Hefei University of Technology, Hefei 230009, China,School of Material Science and Engineering, Hefei University of Technology, Hefei 230009, China and 1. School of Material Science and Engineering, Hefei University of Technology, Hefei 230009, China;2. School of Mechanical and Aerospace Engineering, Nan yang Technological University, Singapore 639798, Singapore |
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| Abstract: | on the aim of this study was to investigate the welding thermal field and residual stress field of laser-GMAW hybrid welding. ANSYS finite element software was employed to simulate the welding thermal field and residual stress field of Heterogeneous steel. Laser-GMAW hybrid welding source model was built by using Ellipsoid-Cylinder-Cone hybrid heat method, and the results were analyzed. The simulated results were coincided well to the experimental results. The laser- GMAW hybrid welding source model is applicable in the simulation of welding thermal field and residual stress field of Het- erogeneous steel, which provided an effective method for predicting weld seam shape and size of heterogeneous steel under different welding conditions. |
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| Keywords: | heterogeneous steel heat source model laser-GMAW hybrid welding welding stress field simulation |
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