AZ31 마그네슘합금의 레이저 용접성에 미치는 공정변수의 영향
Effect of Process Parameters on Laser Weldability of AZ31 Magnesium Alloy
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초록
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.
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.
참고문헌 (13)
- A. Munitz, "Mechanical properties and microstructure of gas tungsten arc welded magnesium AZ91D plates", Materials Science and Engineering, A302, pp.68~73 (2001)
- Shuhei AIDA, "Deep-drawability of cup on AZ31 magnesium alloy plate", Journal of Japan Institute of Light Metals, 50(9), pp.456~461 (2000)
- Tianping Zhu, "Incipient melting in partially melted zone during arc welding of AZ91D magnesium alloy", Materials Science and Engineering, A416, pp.246~252 (2006)
- G. Ben-Hamu, "The relation between microstructure and corrosion behavior of GTA welded AZ31B magnesium sheet", Materials Science and Engineering, A452-453, pp.210~218 (2007)
- X. Cao, "A review of laser welding techniques for magnesium alloys", Journal of Materials Processing Technology, 171, pp.188~204 (2006)
- Shigeru KURAMOTO, "Hydrogen behavior during stress-corrosion cracking of an AZ31 magnesium alloy", Journal of Japan Institute of Light Metals, 51(8), pp.397~402 (2001)
- A. Weisheit, "CO2 Laser Beam Welding of Magnesium -Based Alloys", Welding journal, 77(4), pp.149~154 (1998)
- C. Lehner, "Welding of die-casted magnesium alloys for production", Journal of Laser Applications, 11(5), pp.206~210 (1999)
- M. Pastor, "Continuous wave-Nd: yttrium- aluminum-garnet laser welding of AM60B magnesium alloy", Journal of Laser Applications, 12(3), pp.91~100 (2000)
- M. Marya, "Laser Welding of Magnesium Alloy AZ91", Welding in the World, 44(2), pp.31~37 (2000)
- Toshikatsu Asahina, "Electron Beam Weldability of Pure Magnesium and AZ31 Magnesium Alloy", Materials Transactions, 42(11), pp.2345~2353 (2001)
- Jinhong Zhu, "CO2 and diode laser welding of AZ31 magnesium alloy", Applied Surface Science, 247, pp.300~306 (2005)
- T ASAHINA, "Pulsed YAG laser weldability of magnesium alloys", Welding International, (19), pp.23~28 (2005)