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

  • Beijing University of Technology, Beijing 100124, China

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  • Received Date: September 28, 2018
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    • 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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