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http://dx.doi.org/10.5781/KWJS.2012.30.6.542

A Study on the Weldability of Magnesium Alloy by Laser Heat Source (II) - Mechanical Properties of laser-welded AZ31B-H24 and AZ31B-O -  

Lee, Jung-Han (Technical Institute of Sungwoo Hitech Co., LTD.)
Kim, Jong-Do (Division of Marine Engineering, Korea Maritime University)
Lee, Mun-Yong (Technical Institute of Sungwoo Hitech Co., LTD.)
Publication Information
Journal of Welding and Joining / v.30, no.6, 2012 , pp. 56-61 More about this Journal
Abstract
Magnesium alloy sheet which is commercially available in the market presently is AZ31B, a Mg-Al-Zn three elements alloy. AZ31B is used by being classified into AZ31B-H24 and AZ31B-O depending on temper designation. In this study, AZ31B-H24 and AZ31B-O alloy sheets with 1.25mm thickness were butt-welded using CW Nd:YAG laser. And the effect of materials on mechanical properties was investigated by tensile and hardness tests. As a result of this study, regardless of materials, the butt-welded joint did not show a significant difference in tensile strength and hardness values. However, compared with the basemetal, the AZ31B-O showed more outstanding mechanical properties than AZ31B-H24, and that is because H24 material lost the effect of work hardening during welding.
Keywords
AZ31B-H24; AZ31B-O; Nd:YAG laser; Butt welding; Mechanical property;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
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