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316不锈钢超薄板脉冲激光焊残余应力及变形

许海亮, 郭星晔, 雷永平, 林健, 肖荣诗

许海亮, 郭星晔, 雷永平, 林健, 肖荣诗. 316不锈钢超薄板脉冲激光焊残余应力及变形[J]. 焊接学报, 2019, 40(8): 50-54. DOI: 10.12073/j.hjxb.2019400208
引用本文: 许海亮, 郭星晔, 雷永平, 林健, 肖荣诗. 316不锈钢超薄板脉冲激光焊残余应力及变形[J]. 焊接学报, 2019, 40(8): 50-54. DOI: 10.12073/j.hjxb.2019400208
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XU Hailaing, GUO Xingye, LEI Yongping, LIN Jian, XIAO Rongshi. Residual stress and deformation of ultra-thin 316 stainless steel plate using pulsed laser welding process[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2019, 40(8): 50-54. DOI: 10.12073/j.hjxb.2019400208
Citation: XU Hailaing, GUO Xingye, LEI Yongping, LIN Jian, XIAO Rongshi. Residual stress and deformation of ultra-thin 316 stainless steel plate using pulsed laser welding process[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2019, 40(8): 50-54. DOI: 10.12073/j.hjxb.2019400208
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316不锈钢超薄板脉冲激光焊残余应力及变形

  • 北京工业大学, 激光工程研究院, 北京 100124

基金项目: 国家重点研发计划课题（2017YFB1104803），国家自然科学基金资助项目（51275006）

Residual stress and deformation of ultra-thin 316 stainless steel plate using pulsed laser welding process

  • Beijing University of Technology, Beijing 100124, China

摘要

    摘要
  • 摘要: 在超薄金属板焊接过程中，残余应力及变形对产品质量有重要影响.文中研究了316不锈钢超薄板（厚度为70 μm）脉冲激光焊接过程的残余应力和焊接变形.采用热-弹-塑性有限元法和半椭球移动热源模型，考虑模型的几何和材料非线性因素，采用顺序耦合的方法对超薄板结构的温度场、应力-应变场进行模拟.采用光纤激光器对70 μm的316不锈钢板进行焊接，用红外测温仪对特征点热循环进行测量，用激光位移传感器测量了焊接变形，用X射线衍射应力测试仪测试了残余应力.结果表明，温度场、残余应力、变形的模拟计算结果与试验结果吻合.
    Abstract: In the welding process of ultra-thin metal plates, the control of welding residual stress and deformation has an important influence on the product quality. The residual stress and welding deformation of 316 stainless steel ultra-thin plate (thickness 70 μm) during pulse laser welding process were studied. The thermo-elastic-plastic finite element method and the semi-ellipsoid moving heat source model were used to simulate the temperature field and stress-strain field of the ultra-thin plate structure by considering the geometry and material nonlinear factors of the model. A pulsed laser welding experiment was carried out, the temperature was measured using an infrared thermometer, the welding distortion was measured by a laser displacement sensor, and the residual stress was measured by an X-ray diffraction stress tester. The results shown that the model prediction were consistent with the experimental measurements results.
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    • 参考文献(13)
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  • 收稿日期:  2018-09-28

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