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http://dx.doi.org/10.7467/KSAE.2012.20.5.008

Welding Properties of 1000MPa Class High Strength Steel Sheets for Car Body Using Disk Laser  

Seol, Hyun-Uk (Technical Institute Advanced Technology Team)
Song, Mun-Jong (Technical Institute Advanced Technology Team)
Lee, Kyu-Hyun (Technical Institute Advanced Technology Team)
Lee, Mun-Yong (Technical Institute Advanced Technology Team)
Kim, Sok-Won (Department of Physics, University of Ulsan)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.20, no.5, 2012 , pp. 8-12 More about this Journal
Abstract
Application for laser welding have increased steadily in recent years due to its benefits such as high speed, high productivity and high density energy heat source. In this study, the influence of welding parameters was investigated on penetration characteristics, mechanical properties including formability test in disk laser welded 1000MPa class steels. A shielding gas was used and bead-on-plate test was performed with various welding speeds. The main welding test was performed by butt welding with various welding speeds at 2.5 kW laser power.
Keywords
Laser welding; High strength steel; Tensile load;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 G. T. Lee and J. W. Kim, "A Study on the Three-dimensional Heat Flow Analysis in the Laser Welding for Deep Penetration," Journal of Korean Welding Society, Vol.18, No.3, pp.76-82, 2000.   과학기술학회마을
2 K. Harley, H. Haferkamp and A. Ostendorf, "Inductively Supported Laser Beam Welding of High and Ultra Strength Steel Grade," Proceeding of 27th International Congress on Applications of Lasers & Electro-Optics, Laser Material Processing Conference, pp.589-594, 2008.
3 M. S. Xia, M. L. Kunts, Z. L. Tian and Y. Zhou, "Failure Study on Laser Welds of Dual Phase Steel in Formability Testing," Science and Technology of Welding and Joining, pp.378- 386, 2008.
4 M. Xia, E. Biro, Z. Tian and Y. N. Zhou, "Effects of Heat Input and Martensite on HAZ Softening in Laser Welding of Dual Phase Steel," ISI International, pp.809-814, 2008.
5 R. Sharma, P. Molian and F. Peters, "Geometric Variability and Surface Finish of Weld Zones in Yb: YAG Laser Welded Advanced High Strength Steels," Journal of Manufacturing Processes, Vol.12, pp.73-84, 2010.   DOI   ScienceOn
6 R. S. Sharma and P. Molian, "Yb: YAG Laser Welding of TRIP780 Steel with Dual Phase and Mild Steels for Use in Tailor Welded Blanks," Materials&Design, Vol.30, pp.4146-4155, 2009.