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| 不锈钢车体非熔透激光搭接焊热源模型 | |
| 引用本文： | 史春元,顾国晨,王洪潇,金成,王春生.不锈钢车体非熔透激光搭接焊热源模型[J].焊接学报,2011,32(5):85-88. |
| 作者姓名： | 史春元 顾国晨 王洪潇 金成 王春生 |
| 作者单位： | 1. 大连交通大学材料科学与工程学院,辽宁大连,116028 2. 大连交通大学材料科学与工程学院,辽宁大连116028;长春轨道客车股份有限公司,长春130062 3. 长春轨道客车股份有限公司,长春,130062 |
| 摘 要： | 用激光搭接焊取代电阻点焊是解决不锈钢车体表面质量和密封性问题的理想方法,但在不锈钢车体非熔透型激光搭接焊工艺试验过程中,发现在常用的激光焊接工艺参数范围内,搭接接头的熔池形状近似花瓶状,不同于通常情况下热导焊时呈碗状和深熔焊时呈钉形.为此,基于ABAQUS有限元分析软件,分别对高斯热源、高斯热源+柱体热源、三维正锥体热... |
| 关 键 词： | 不锈钢车体 激光搭接焊 热源模型 数值模拟 |
| 收稿时间： | 2010/1/25 0:00:00 |
Heat source model for partial penetration lap laser welding of stainless steel railway vehicles |
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| SHI Chunyuan,GU Guochen,WANG Hongxiao,JIN Cheng and WANG Chunsheng.Heat source model for partial penetration lap laser welding of stainless steel railway vehicles[J].Transactions of The China Welding Institution,2011,32(5):85-88. | |
| Authors: | SHI Chunyuan GU Guochen WANG Hongxiao JIN Cheng and WANG Chunsheng |
| Affiliation: | School of Materials Science and Engineering, Dalian Jiaotong University, Dalian 116028, China,School of Materials Science and Engineering, Dalian Jiaotong University, Dalian 116028, China,School of Materials Science and Engineering, Dalian Jiaotong University, Dalian 116028, China;Changchun Railway Vehicles Ltd., Co., Changchun 130062, China,School of Materials Science and Engineering, Dalian Jiaotong University, Dalian 116028, China and Changchun Railway Vehicles Ltd., Co., Changchun 130062, China |
| Abstract: | It is an optimum method to solve the problem on the appearance quality and tightness of stainless steel car body by replacing resistance spot welding with lap laser welding.But in the experiments of partial penetration lap laser welding,the shape of molten pool was found to be similar with a vase in the common processing parameters,which was different from the normal laser conductive welding or the laser deep penetration welding.By using the software of ABAQUS,the welding temperature fields were simulated with different heat source models,such as Gauss heat source,Gauss heat source+conical heat source,and 3-D conical heat source+inverted conical heat source+ellipsoid heat source.The results indicate that the shapes of molten pool simulated by using 3-D conical heat source+inverted conical heat source+ellipsoid heat source agree well with the experimental results. |
| Keywords: | stainless steel railway vehicles lap laser welding heat source model numerical simulation |
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