| SUS301L不锈钢非熔透型激光搭接焊的疲劳特性分析 |
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| 引用本文： | 朱国仁,陈松,李蒙蒙. SUS301L不锈钢非熔透型激光搭接焊的疲劳特性分析[J]. 焊接学报, 2016, 37(4): 14-18 |
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| 作者姓名： | 朱国仁 陈松 李蒙蒙 |
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| 作者单位： | 1.吉林大学链传动研究所, 长春 130025 |
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| 基金项目： | 科技部国际合作资助项目(2009DFR80040) |
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| 摘 要： | 通过对轨道客车试验用不锈钢熔透型和非熔透型激光焊接头及电阻点焊接头不同的拉力和疲劳对比试验,疲劳试验采用阶梯法和成组法,并进行初步断裂力学和微观分析.结果表明,不锈钢车体非熔透型激光焊具有较熔透型激光焊和电阻点焊更高的疲劳强度,同时在相同激光焊接参数下,改变非熔透型激光焊工艺中非熔透板厚度,能直接影响其工艺的剪切拉伸强度和疲劳强度,加厚非熔透板,疲劳强度提高,剪切拉伸强度降低.
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| 关 键 词： | 熔透型激光焊 非熔透型激光焊 疲劳特性 剪切拉伸强度 |
| 收稿时间： | 2015-01-25 |
Study on fatigue performance of stainless steel non-penetration laser lap welding of SUS301L stainless steel body |
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| ZHU Guoren,CHEN Song and LI Mengmeng. Study on fatigue performance of stainless steel non-penetration laser lap welding of SUS301L stainless steel body[J]. Transactions of The China Welding Institution, 2016, 37(4): 14-18 |
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| Authors: | ZHU Guoren CHEN Song LI Mengmeng |
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| Affiliation: | 1.Chain Transmission Institute, Jilin University, Changchun 130025, China2.Institute of Mechanical Science and Engineering, Jilin University, Changchun 130025, China |
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| Abstract: | With shear tension and fatigue strength tests on penetration and non-penetration stainless steel laser welding head and resistance welding head that are used in rail train tests and a preliminary analysis of the microstructure and fracture mechanics, which fatigue tests use the staircase method and group method. It can concludd that non-penetration laser welding stainless steel body has higher fatigue strength than penetration laser welding and resistance spot welding. And under the same laser welding parameters it could directly affect craft shear and fatigue strength when changing the non-penetration plate''s thickness of the non-penetration laser welding craft. |
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| Keywords: | penetration laser welding non-penetration laser welding fatigue properties tensile shear extrude strength |
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