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

Mario Pástor; Hailiang Zhao; Tarasankar DebRoy

doi:10.3989/revmetalm.2000.v36.i2.562

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

Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

11 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 contribution	Pore formation during C.W.Nd:YAG laser welding of aluminum alloys for automotive applications
Original language	Spanish
Pages (from-to)	108-117
Number of pages	10
Journal	Revista de Metalurgia (Madrid)
Volume	36
Issue number	2
DOIs	https://doi.org/10.3989/revmetalm.2000.v36.i2.562
State	Published - 2000

All Science Journal Classification (ASJC) codes

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

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10.3989/revmetalm.2000.v36.i2.562

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

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.",

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AU - Pástor, Mario

AU - Zhao, Hailiang

AU - DebRoy, Tarasankar

PY - 2000

Y1 - 2000

N2 - 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.

AB - 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.

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

Abstract

All Science Journal Classification (ASJC) codes

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