Translated title of the contribution: Galvanometer Scanning Laser-Micro-Welding of AISI304 Stainless-Steel Foil

Weizhe Du, Ting Huang, Zheng Cao, Lin Luan, Qingwei Zhang, Rongshi Xiao

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


Laser-micro-welding based on galvanometer scanning has attracted great interest. Herein, bead-on-plate scanning micro-welding of 100-μm-thick AISI304 stainless steel foil is conducted by using a single-mode fiber laser equipped with a galvanometer scanning system. A comparative study is conducted on the laser-micro-welding processes with/without Ar-gas protection, and process windows of laser-micro-welding for the both conditions are established. Results show that an unstable transition zone exists during laser-micro-welding without gas shielding. The unstable transition zone is generated during the deep penetration welding mode alone, rather than during the alternation of thermal conductivity welding mode and deep penetration welding mode, as reported previously. The oxidation during laser-micro-welding results in an unstable deep penetration welding mode, during which a transition zone is formed. Furthermore, by applying gas shielding, we find that the unstable transition zone is eliminated, and the welding-process window is expanded.

Translated title of the contributionGalvanometer Scanning Laser-Micro-Welding of AISI304 Stainless-Steel Foil
Original languageChinese (Traditional)
Article number1102006
JournalZhongguo Jiguang/Chinese Journal of Lasers
Issue number11
Publication statusPublished - 2019 Nov 10
Externally publishedYes


  • Fiber laser micro-welding
  • Gas shielding
  • Laser technique
  • Process window
  • Stainless steel foil
  • Transition zone

ASJC Scopus subject areas

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


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