Thin-sheet zinc-coated and carbon steels laser welding

Authors

  • P. Peças Instituto de Soldadura e Qualidade
  • H. Gouveia Instituto de Soldadura e Qualidade
  • L. Quintino Instituto Superior Técnico-Secção de Tecnologia Mecânica

DOI:

https://doi.org/10.3989/revmetalm.1998.v34.i2.696

Keywords:

Laser welding, Zinc coated steel, Thin thickness sheets

Abstract


This paper describes the results of a research on CO2 laser welding of thin-sheet carbon steels (zinccoated and uncoated), at several thicknesses combinations. Laser welding has an high potential to be applied on sub-assemblies welding before forming to the automotive industry-tailored blanks. The welding process is studied through the analysis of parameters optimization, metallurgical quality and induced distortions by the welding process. The clamping system and the gas protection system developed are fully described. These systems allow the minimization of common thin-sheet laser welding defects like misalignement, and zinc-coated laser welding defects like porous and zinc volatilization. The laser welding quality is accessed by DIN 8563 standard, and by tensile, microhardness and corrosion tests.

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Published

1998-04-30

How to Cite

Peças, P., Gouveia, H., & Quintino, L. (1998). Thin-sheet zinc-coated and carbon steels laser welding. Revista De Metalurgia, 34(2), 232–241. https://doi.org/10.3989/revmetalm.1998.v34.i2.696

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Section

Articles