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Author Kim, Jong Do ♦ Lee, Jung Han ♦ Kim, Jang Soo
Source SpringerLink
Content type Text
Publisher Korean Society for Precision Engineering
File Format PDF
Copyright Year ©2010
Language English
Subject Domain (in DDC) Technology ♦ Engineering & allied operations
Subject Keyword AZ31 magnesium alloy ♦ Nd:YAG laser ♦ Laser weldability ♦ Butt welding ♦ Mechanical property ♦ Materials Science ♦ Industrial and Production Engineering
Abstract Magnesium alloys are potentially useful as structural materials due to their 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. This study is related to the laser weldability of AZ31 magnesium alloy, an all-purpose wrought alloy with good strength and ductility. The effects of welding conditions on the weldability of butt joints were examined in more detail. In addition, the mechanical properties of butt-welded joints were investigated by tensile and hardness tests. On the other hand, because magnesium is sensitive in an oxidation environment, the effects of shielding conditions were examined by controlling the flow rate of the front and back shielding gas. As a result of this study, optimal conditions without weld defects were obtained. Consequently, a superior weld with nearly the equivalent strength and the half elongation of the base metal was obtained. The weldability, particularly the weld morphology, was clearly affected by the shielding conditions.
ISSN 12298557
Age Range 18 to 22 years ♦ above 22 year
Educational Use Research
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2010-06-25
Publisher Place Springer
e-ISSN 20054602
Journal International Journal of Precision Engineering and Manufacturing
Volume Number 11
Issue Number 3
Page Count 5
Starting Page 369
Ending Page 373


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Source: SpringerLink