Journal of Advanced Marine Engineering and Technology

The Korean Society of Marine Engineering (한국마린엔지니어링학회)
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Characteristics of Butt Welded AZ31 Magnesium Alloy with Laser Welding Conditions

레이저 용접조건에 따른 AZ31 마그네슘합금 맞대기 용접부의 특성

  • Published : 2009.05.31
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Abstract

Magnesium alloys have many advantages such as a low density, high strength/weight ratio and well recycle. And joining process is absolutely necessary to expand the field of application of magnesium alloy. The main problems of conventional process such as arc welding for magnesium alloy are the inflammability, a tendency toward crack formation and the appearance of porosity during solidification. Laser welding technology is a promising means for overcoming these difficulties. This study is related to the laser weldability of AZ31 magnesium alloy, an all-purpose wrought alloy with good strength and ductility. The effect of welding conditions on the weldability of butt joints was examined. Also, the mechanical properties of butt welded joints were investigated by tensile test and hardness test.

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References

  1. B.H Yoon, "Welding technology of magnesium alloy for automobile industry", RIST硏究論文, Vol. 18, NO. 1, pp. 7-15, 2004
  2. E. Schubert, M. Klassen, I. Zerner, C. Walz and G. Sepold, "Light-weight structures produced by laser beam joining for future applications in automobile and aerospace industry", Journal of Materials Processing Technology, Vol. 115, No. 1, pp. 2-8, 2001 https://doi.org/10.1016/S0924-0136(01)00756-7
  3. T. Asahina, H. Tokisue and K. Katoh, "Solidification crack sensitivity of TIG welded AZ31 magnesium alloy", Journal of Japan Institute of Light Metals, Vol. 49, No. 12, pp. 595-599, 1999 https://doi.org/10.2464/jilm.49.595
  4. A. Munitz, C. Cotler, A Stern and G Kohn, "Mechanical properties and microstructure of gas tungsten arc welded magnesium AZ91D plates", Materials Science and Engineering: A, Vol. 302, No. 1, pp. 68-73, 2001 https://doi.org/10.1016/S0921-5093(00)01356-3
  5. T. Zhu, Z. W. Chen and W. Gao, "ncipient melting in partially melted zone during arc welding of AZ91D magnesium", Materials Science and Engineering: A, Vol. 416, No. 1-2, pp. 246-252, 2006 https://doi.org/10.1016/j.msea.2005.10.032
  6. J. A. ESPARZA, W. C. DAVIS, E. A. TRILLO and L. E. MURR, "Friction-stir welding of magnesium alloy AZ31B", JOURNAL OF MATERIALS SCIENCE LETTERS, Vol. 21, No. 12, pp. 917-920, 2002 https://doi.org/10.1023/A:1016061303955
  7. A. Gerlich, P. Su and T.H. North, "Friction stir spot welding of Mg-alloys for automotive applications", Magnesium technology, pp. 383-388, 2005
  8. Mook-Young Lee, Chung-Seon Ryu and Woong-Seong Chang, "Trends in application of magnesium alloy and its welding characteristics with laser", Journal of the Korean Welding and Joining Society, vol. 25, No. 5, pp. 29-35, 2007 https://doi.org/10.5781/KWJS.2007.25.5.029
  9. Jong-Do Kim, Byung-Lea Kil and Jung-Han Lee, "Effect of process parameters on laser weldability of AZ31 magnesium alloy", The Korean Society of Marine Engineering, Vol. 32, No. 4, pp. 570-577, 2008. https://doi.org/10.5916/jkosme.2008.32.4.570
  10. M.M. Avedesian, H. Baker, "ASM specialty handbook, magnesium and magnesium alloys", 1999
  11. 日本塑性加工學會, “マグネシウム加工技術”, 2004

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  1. A Study on Weld Defect and Their Alternatives during Lap Welding of AZ31B Magnesium Alloy by Pulsed Nd: YAG Laser vol.29, pp.3, 2011, https://doi.org/10.5781/KWJS.2011.29.3.338