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http://dx.doi.org/10.5916/jkosme.2008.32.4.570

Effect of Process Parameters on Laser Weldability of AZ31 Magnesium Alloy  

Kim, Jong-Do (한국해양대학교 기관시스템공학부)
Kil, Byung-Lea (한국해양대학교 기관시스템공학부)
Lee, Jung-han (한국해양대학교 대학원)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.32, no.4, 2008 , pp. 570-577 More about this Journal
Abstract
Magnesium alloys are potentially useful as structural materials due to higher strength/weight ratio, heat conductivity and recyclability compared to other alloys. These alloys have attracted the interest of modern manufacturing such as the automobile, computer, communication and consumer electronic appliances industries. Hence welding techniques are required to be developed for these applications. Laser are known to be an excellent tool for them. This paper presents the laser weldability of AZ31 magnesium alloy with CW Nd:YAG laser. The low viscosity and surface tension of the melt pool make magnesium more difficult to weld than steel. As a result of this study, optimal process parameters could be obtained without weld defects. Also it was certain that cutting methods had influence on butt weldability.
Keywords
Magnesium alloy; Nd:YAG laser; Laser weldability; Process parameter; Butt welding;
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