| 激光焊接接头的质量控制研究 |
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| 引用本文： | 伍强,杨永强,徐兰英.激光焊接接头的质量控制研究[J].机械设计与制造,2011(7). |
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| 作者姓名： | 伍强 杨永强 徐兰英 |
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| 作者单位： | 1. 华南理工大学,机械与汽车工程学院,广州,510640;广东技术师范学院,数控技术广东普通高校重点实验室,广州,510635
2. 华南理工大学,机械与汽车工程学院,广州,510640 |
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| 基金项目： | 中国博士后基金(20090450865); 表面功能结构先进制造广东普通高校重点实验室开放基金(SFS-KF201013); 中央高校基本科研业务费专项资金资助(2011ZM0062) |
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| 摘 要： | 激光焊接高强度镀锌钢时,采用引弧板和接弧板的方法,可以避免不稳定的熔宽变化造成的不良影响。由于激光焊接时工件表面镀锌层的蒸发而影响接头的耐蚀性,为此采用浓度为3%的盐水对不同激光焊接工艺的焊接件进行腐蚀试验,获得了腐蚀前后的焊接接头的质量变化量和金相图。研究表明,在不同工艺参数的条件下,激光焊接高强度镀锌钢焊接接头的腐蚀速度不同,其平均速度与母材的腐蚀速度大体相当,不会影响接头的抗腐蚀性能。
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| 关 键 词： | 激光技术 激光焊接 高强度镀锌钢 接头的质量控制 |
Quality control study of laser welded joint |
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| WU Qiang,YANG Yong-qiang,XU Lan-ying.Quality control study of laser welded joint[J].Machinery Design & Manufacture,2011(7). |
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| Authors: | WU Qiang YANG Yong-qiang XU Lan-ying |
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| Affiliation: | WU Qiang1,2,YANG Yong-qiang1,XU Lan-ying1,2(1School of Mechanical & Automotive Engineering,South China University of Technology,Guangzhou 510640,China)(2Numerical Control Technology Key Laboratory of Colleges of Guangdong Province,GuangDong Polytechnic Normal University,Guangzhou 510635,China) |
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| Abstract: | During laser welding of high-strength galvanized steel,by adopting arc initiating plate and arc joining plate,harmful effect resulted from unstable melting width can be avoided.Because of the inevitable evaporating of galvanized layer caused by laser welding,the corrosion resistance of weld-joint may be affected.In this case salt water with concentration of 3% is used in the corrosion test for the weld assembly under different laser welding processes,and mass variation and equilibrium diagram for joints bef... |
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| Keywords: | Laser technique Laser welding Galvanized steel with high strength Quality control of the joint |
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