Arc-laser interactions and heat transfer and fluid flow in hybrid welding

B. D. Ribic, R. Rai, T. A. Palmer, T. DebRoy

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

6 Scopus citations


Hybrid welding combines laser and arc welding to overcome their individual short comings. While much of the current literature has focused on experimentally demonstrating the benefits of hybrid welding, work on the quantitative understanding of the governing physical processes is just beginning. In this work, a three dimensional steady numerical model for solving the equations of conservation of mass, momentum, and energy is developed and tested to understand the temperature fields, cooling rates, and fusion zone geometry for hybrid welding. The results show that hybrid welding increases weld pool width, which can lead to improved gap bridgability relative to laser welding alone. Increasing laser power leads to a deeper and wider hybrid weld pool. When the arc and laser are in close proximity, calculations showed that arc radius must decrease to achieve the observed weld depth.

Original languageEnglish (US)
Title of host publicationTrends in Welding Research - Proceedings of the 8th International Conference
Number of pages8
StatePublished - 2009
Event8th International Conference on Trends in Welding Research - Pine Mountain, GA, United States
Duration: Jun 1 2008Jun 6 2008

Publication series

NameASM Proceedings of the International Conference: Trends in Welding Research


Other8th International Conference on Trends in Welding Research
Country/TerritoryUnited States
CityPine Mountain, GA

All Science Journal Classification (ASJC) codes

  • General Materials Science
  • Mechanical Engineering


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