Modeling the transport phenomena in moving 3-D dual-beam laser keyhole welding

Jun Zhou, H. L. Tsai, P. C. Wang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Research and Development Center General Motors Corporation, Warren, M1 48090, USA In recent years, laser-beam welding using two laser beams, or dual-beam laser welding, has become an emerging welding technique. Previous studies have demonstrated that it can provide benefits over conventional single-beam laser welding, such as increasing keyhole stability, slowing down cooling rate and delaying the humping onset to a higher welding speed. It is reported that the dual beam laser welding can significantly improve weld quality. However, so far the development of the dual-beam laser welding technique has been limited to the trialand-error procedure. In this study, the objective is to develop mathematical models and the associated numerical techniques to investigate the transport phenomena, such as heat transfer, metal flow, keyhole formation and weld pool shape evolutions during the moving three-dimensional dual-beam laser keyhole welding. Detailed studies have been conducted to determine the effects of key parameters, such as laser-beam configuration on weld pool fluid flow, weld shape, and keyhole dynamics. Some experimentally observed phenomena, such as the changes of the weld pool shape from oval to circle and from circle to oval during the welding process are predicted and can be well explained by the present model.

Original languageEnglish (US)
Title of host publicationProceedings of the ASME Summer Heat Transfer Conference, HT 2005
Pages263-270
Number of pages8
DOIs
StatePublished - Dec 1 2005
Event2005 ASME Summer Heat Transfer Conference, HT 2005 - San Francisco, CA, United States
Duration: Jul 17 2005Jul 22 2005

Publication series

NameProceedings of the ASME Summer Heat Transfer Conference
Volume3

Other

Other2005 ASME Summer Heat Transfer Conference, HT 2005
CountryUnited States
CitySan Francisco, CA
Period7/17/057/22/05

Fingerprint

Laser beam welding
Welds
Welding
Laser beams
Flow of fluids
Mathematical models
Heat transfer
Cooling
Metals
Industry

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Zhou, J., Tsai, H. L., & Wang, P. C. (2005). Modeling the transport phenomena in moving 3-D dual-beam laser keyhole welding. In Proceedings of the ASME Summer Heat Transfer Conference, HT 2005 (pp. 263-270). [HT2005-72201] (Proceedings of the ASME Summer Heat Transfer Conference; Vol. 3). https://doi.org/10.1115/HT2005-72201
Zhou, Jun ; Tsai, H. L. ; Wang, P. C. / Modeling the transport phenomena in moving 3-D dual-beam laser keyhole welding. Proceedings of the ASME Summer Heat Transfer Conference, HT 2005. 2005. pp. 263-270 (Proceedings of the ASME Summer Heat Transfer Conference).
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abstract = "Research and Development Center General Motors Corporation, Warren, M1 48090, USA In recent years, laser-beam welding using two laser beams, or dual-beam laser welding, has become an emerging welding technique. Previous studies have demonstrated that it can provide benefits over conventional single-beam laser welding, such as increasing keyhole stability, slowing down cooling rate and delaying the humping onset to a higher welding speed. It is reported that the dual beam laser welding can significantly improve weld quality. However, so far the development of the dual-beam laser welding technique has been limited to the trialand-error procedure. In this study, the objective is to develop mathematical models and the associated numerical techniques to investigate the transport phenomena, such as heat transfer, metal flow, keyhole formation and weld pool shape evolutions during the moving three-dimensional dual-beam laser keyhole welding. Detailed studies have been conducted to determine the effects of key parameters, such as laser-beam configuration on weld pool fluid flow, weld shape, and keyhole dynamics. Some experimentally observed phenomena, such as the changes of the weld pool shape from oval to circle and from circle to oval during the welding process are predicted and can be well explained by the present model.",
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Zhou, J, Tsai, HL & Wang, PC 2005, Modeling the transport phenomena in moving 3-D dual-beam laser keyhole welding. in Proceedings of the ASME Summer Heat Transfer Conference, HT 2005., HT2005-72201, Proceedings of the ASME Summer Heat Transfer Conference, vol. 3, pp. 263-270, 2005 ASME Summer Heat Transfer Conference, HT 2005, San Francisco, CA, United States, 7/17/05. https://doi.org/10.1115/HT2005-72201

Modeling the transport phenomena in moving 3-D dual-beam laser keyhole welding. / Zhou, Jun; Tsai, H. L.; Wang, P. C.

Proceedings of the ASME Summer Heat Transfer Conference, HT 2005. 2005. p. 263-270 HT2005-72201 (Proceedings of the ASME Summer Heat Transfer Conference; Vol. 3).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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AB - Research and Development Center General Motors Corporation, Warren, M1 48090, USA In recent years, laser-beam welding using two laser beams, or dual-beam laser welding, has become an emerging welding technique. Previous studies have demonstrated that it can provide benefits over conventional single-beam laser welding, such as increasing keyhole stability, slowing down cooling rate and delaying the humping onset to a higher welding speed. It is reported that the dual beam laser welding can significantly improve weld quality. However, so far the development of the dual-beam laser welding technique has been limited to the trialand-error procedure. In this study, the objective is to develop mathematical models and the associated numerical techniques to investigate the transport phenomena, such as heat transfer, metal flow, keyhole formation and weld pool shape evolutions during the moving three-dimensional dual-beam laser keyhole welding. Detailed studies have been conducted to determine the effects of key parameters, such as laser-beam configuration on weld pool fluid flow, weld shape, and keyhole dynamics. Some experimentally observed phenomena, such as the changes of the weld pool shape from oval to circle and from circle to oval during the welding process are predicted and can be well explained by the present model.

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Zhou J, Tsai HL, Wang PC. Modeling the transport phenomena in moving 3-D dual-beam laser keyhole welding. In Proceedings of the ASME Summer Heat Transfer Conference, HT 2005. 2005. p. 263-270. HT2005-72201. (Proceedings of the ASME Summer Heat Transfer Conference). https://doi.org/10.1115/HT2005-72201