Welding deformation of ultra-thin 316 stainless steel plate using pulsed laser welding process

Hailaing Xu, Xingye Guo, Yongping Lei, Jian Lin, Hanguang Fu, Rongshi Xiao, Ting Huang, Yung C. Shin

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

The ultra-thin plate (thickness <0.1 mm) is widely used as the raster plate in the high-precision collimator, but the welding induced distortion is the main problem restricting its application. In this study, the effect of laser power on the welding deformation of an ultra-thin steel plate during pulsed laser welding was studied by means of both numerical simulation and experiment. A three dimensional thermal-elastic-plastic FE analysis was conducted to predict the temperature field and distortion of the ultra-thin steel plate. The thermal and mechanical material properties used in this simulation all followed the non-linear relations as a function of temperatures. Meanwhile, a pulsed laser welding experiment was carried out, the temperature field was measured by a pyrometer, and the distortion was measured by a laser displacement sensor. The results showed that the model prediction was consistent with the experimental measurements results.

Original languageEnglish
Article number105583
JournalOptics and Laser Technology
Volume119
DOIs
Publication statusPublished - 2019 Nov
Externally publishedYes

Keywords

  • Distortion
  • Finite element
  • Pulsed laser welding
  • Temperature field
  • Ultra-thin plate

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

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