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Dissimilar Metal Welding of Medium Carbon Steel and Austenitic Stainless Steel utilize CW Nd:YAG Laser  

Shin Ho-Jun (조선대학교 대학원)
Ahn Dong-Gu (조선대학교 기계공학과)
Im Kie-Gon (전남대학교 물리학과)
Shin Byung-Heon (조선대학교 기계공학부)
Yoo Young-Tae (조선대학교 기전공학과)
Publication Information
Journal of the Korean Society for Precision Engineering / v.23, no.3, 2006 , pp. 47-55 More about this Journal
Abstract
Laser welding of dissimilar metals has been widely used to improve a wear resistance and a corrosion resistance of the industrial parts. The objective of this research is to investigate the influence of the process parameters, such as the welding for SM45C and STS304 with CW Nd:YAG lasers. The bead-on-plate welding tests are carried out for several combinations of the experimental conditions. In order to quantitatively examine the characteristics of the dissimilar welding, the welding quality of the cut section, stress-strain behavior and the hardness of the welded metal are investigated. From the results of the investigation, it has been shown that the optimal voiding condition without defects in the vicinity of the welded area and with a good welding quality is 1600W of the laser power, 0.85m/min of welding speed and $4{\ell}/min$ of pressure for shielding gas.
Keywords
Laser welding; Butt welding; Aspect ratio; STS304; SM45C; Heat input capacity;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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