Formacion de porosidad durante la soldadura laser de Nd:YAG de onda continua en aleaciones de aluminio para aplicaciones automotrices

Translated title of the contribution: Pore formation during C.W.Nd:YAG laser welding of aluminum alloys for automotive applications

Mario Pástor, Hailiang Zhao, Tarasankar DebRoy

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

Pore formation is an important concern in laser welding of automotive aluminum alloys. This paper investigates the influence of the laser beam defocusing on pore formation during continuous wave Nd:YAG laser welding of aluminum automotive alloys 5182 and 5754. It was found that the instability of the keyhole during welding was a dominant cause of pore formation while hydrogen rejection played an insignificant role. The defocusing of the laser beam greatly affected the stability of the keyhole. Finally, the mechanism of the collapse of the keyhole and pore formation is proposed.

Translated title of the contributionPore formation during C.W.Nd:YAG laser welding of aluminum alloys for automotive applications
Original languageSpanish
Pages (from-to)108-117
Number of pages10
JournalRevista de Metalurgia (Madrid)
Volume36
Issue number2
DOIs
StatePublished - 2000

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Metals and Alloys
  • Materials Chemistry

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