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Materials Science

, Volume 55, Issue 1, pp 46–51 | Cite as

Structural and Mechanical Features of Laser-Welded Joints of Zinc-Coated Advanced Steel Sheets

  • J. Viňáš
  • J. Brezinová
  • J. Brezina
  • P. O. MaruschakEmail author
Article
  • 19 Downloads

We analyze the quality of laser-welded bodywork steel sheets. The welding was done by a CO2 laser. We studied the welds made on steel sheets of advanced grades: high-strength low-alloy steel, dual phase steel, and multiphase transformed steel with induced plasticity. Both sides of steel sheets were gal- vanized. The quality of welded joints was assessed by visual inspection. We performed the tensile tests of the specimens, including fracture tests. The Vickers microhardness was evaluated in the individual re- gions of joints. The macro- and microstructural analyses were performed by microscopy. The parame- ters recommended by the International Institute of Welding were used for welding. According to the da- ta of nondestructive and destructive tests, the analyzed welds were classified as satisfactory.

Keywords

laser welding automotive structure evaluation steel 

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  • J. Viňáš
    • 1
  • J. Brezinová
    • 1
  • J. Brezina
    • 1
  • P. O. Maruschak
    • 2
    Email author
  1. 1.Department of Technology and MaterialsTechnical University of KošiceKošiceSlovakia
  2. 2.Pulyui Ternopil National Technical UniversityTernopilUkraine

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