Effects of using an external electromagnetic force on transport phenomena and weld quality in laser welding

Jun Zhou, Hai Lung Tsai

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

1 Scopus citations

Abstract

Welding defects such as undercuts, porosity, irregular beads are frequently observed in laser welds due to the fast cooling rate and no filler metal addition in the process. In addition, increasing penetration depth is a challenging issue in laser welding. Some preliminary experimental studies indicated that applying electromagnetic force in laser welding could be an effective solution to some of these problems. However, the underlying physics behind this electro-magnetically assisted laser welding is not clear and needs further investigation. In this paper, mathematical models are used to study the transport phenomena, such as heat transfer and melt flow, in both spot and 3-D electro-magnetically assisted laser welding. Studies are focused on understanding the effects of electromagnetic forces on heat generation and transfer, weld pool dynamics, cooling and solidification, porosity prevention, weld shape control, and penetration depth.

Original languageEnglish (US)
Title of host publicationASME 2012 Heat Transfer Summer Conf. Collocated with the ASME 2012 Fluids Engineering Div. Summer Meeting and the ASME 2012 10th Int. Conf. on Nanochannels, Microchannels and Minichannels, HT 2012
Pages937-942
Number of pages6
DOIs
StatePublished - Dec 1 2012
EventASME 2012 Heat Transfer Summer Conference Collocated with the ASME 2012 Fluids Engineering Div. Summer Meeting and the ASME 2012 10th Int. Conf. on Nanochannels, Microchannels and Minichannels, HT 2012 - Rio Grande, Puerto Rico
Duration: Jul 8 2012Jul 12 2012

Publication series

NameASME 2012 Heat Transfer Summer Conf. Collocated with the ASME 2012 Fluids Engineering Div. Summer Meeting and the ASME 2012 10th Int. Conf. on Nanochannels, Microchannels and Minichannels, HT 2012
Volume1

Other

OtherASME 2012 Heat Transfer Summer Conference Collocated with the ASME 2012 Fluids Engineering Div. Summer Meeting and the ASME 2012 10th Int. Conf. on Nanochannels, Microchannels and Minichannels, HT 2012
CountryPuerto Rico
CityRio Grande
Period7/8/127/12/12

All Science Journal Classification (ASJC) codes

  • Fluid Flow and Transfer Processes
  • Control and Systems Engineering
  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Condensed Matter Physics

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  • Cite this

    Zhou, J., & Tsai, H. L. (2012). Effects of using an external electromagnetic force on transport phenomena and weld quality in laser welding. In ASME 2012 Heat Transfer Summer Conf. Collocated with the ASME 2012 Fluids Engineering Div. Summer Meeting and the ASME 2012 10th Int. Conf. on Nanochannels, Microchannels and Minichannels, HT 2012 (pp. 937-942). (ASME 2012 Heat Transfer Summer Conf. Collocated with the ASME 2012 Fluids Engineering Div. Summer Meeting and the ASME 2012 10th Int. Conf. on Nanochannels, Microchannels and Minichannels, HT 2012; Vol. 1). https://doi.org/10.1115/HT2012-58256