| 超高强度钢与低合金钢的激光搭接焊性能 |
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| 引用本文： | 谷诤巍,于思彬,韩立军,孟佳,徐虹.超高强度钢与低合金钢的激光搭接焊性能[J].吉林大学学报(工学版),2012,42(2):349-353. |
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| 作者姓名： | 谷诤巍 于思彬 韩立军 孟佳 徐虹 |
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| 作者单位： | 1. 吉林大学材料科学与工程学院,长春,130022
2. 一汽大众汽车有限公司产品管理部,长春,130042 |
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| 基金项目： | 工信部高档数控机床与基础制造装备科技重大专项项目，吉林省科技发展计划项目，吉林大学基本科研业务项目 |
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| 摘 要： | 采用Yb:YAG激光器对超高强度钢EN10292 TL4225和低合金钢H340LAD进行了激光焊接试验,分析了不同焊接参数对接头质量的影响。利用光学显微镜观察了接头的微观组织,并通过硬度测试及拉剪试验对接头的力学性能进行了测试,最后采用扫描电镜(SEM,HITACHS-4300)对拉伸断口进行了研究。结果表明,采用优化的焊接参数获得的接头具有良好的接头组织和力学性能,焊接质量能够满足实际生产中的需要。
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| 关 键 词： | 材料合成与加工工艺 超高强度钢 低合金钢 激光焊接 全相组织 力学性能 |
Laser lap-welding performance of ultra-high strength steel and micro-alloy steel |
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| GU Zheng-wei,YU Si-bin,HAN Li-jun,MENG Jia,XU Hong.Laser lap-welding performance of ultra-high strength steel and micro-alloy steel[J].Journal of Jilin University:Eng and Technol Ed,2012,42(2):349-353. |
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| Authors: | GU Zheng-wei YU Si-bin HAN Li-jun MENG Jia XU Hong |
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| Affiliation: | 1(1.College of Materials Science and Engineering,Jilin University,Changchun 130022,China;2.Department of Product Management,The FAW-Wolkswagen Automotive Company LTD,Changchun 130042,China) |
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| Abstract: | Based on experiments of Yb:YAG laser welding of quenched ultra-high strength steel(UHSS) EN10292TL4225 and micro-alloy steel H340LAD,the effects of welding parameters on welding quality were analyzed.Microstructures of the joints were observed using the laser confocal scanning microscopy.The tensile-shear strength and the hardness distribution of the welded joint were tested,and the microstructure of the fracture surface was analyzed by SEM(HITACHS-4300).The test results showed that the obtained joint using the optimized parameter is characterized by good microstructure and mechanical property,the quality meets the actual need of production. |
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| Keywords: | materials synthesis and processing technology ultra-high strength steel~micro alloy steel~laser welding microstructure mechanical property |
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