The New Heat Source Model of AZ31B Magnesium Alloy Laser-TIG Hybrid Welding

Zhong Lin Hou; Tan Zhao; Zhen Xu; Long Hao Zhu; Jian Hua Sun; Yao Hui Jin; Xin Ze Lv

doi:10.4028/www.scientific.net/KEM.815.120

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 815The New Heat Source Model of AZ31B Magnesium Alloy...

The New Heat Source Model of AZ31B Magnesium Alloy Laser-TIG Hybrid Welding

Abstract:

A new heat source model consisted of inverted conical heat source and rotary Gauss body heat source is established using the CAE software for the keyhole effect of laser-TIG hybrid welding. The inverted conical heat source is used for analyzing the wide upper part of weld pool due to the rapid heat up by the laser and arc. The rotary Gauss body heat source model is used for analyzing the long and narrow lower part of weld pool formed by the laser. The result showed that, compared with other single source mode, this new heat source model may get a better simulation of the weld pool morphology, especially the inflection point near the keyhole. It provides a new method to predict the morphology and size of the weld pool of magnesium alloy laser-TIG welding.

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Periodical:

Key Engineering Materials (Volume 815)

Pages:

120-124

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.815.120

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Online since:

August 2019

Authors:

Zhong Lin Hou*, Tan Zhao, Zhen Xu, Long Hao Zhu, Jian Hua Sun, Yao Hui Jin, Xin Ze Lv

Keywords:

Keyhole Effect, Laser-TIG Hybrid Welding, Magnesium Alloy, Shape of Weld Molten

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* - Corresponding Author

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