Welding Characteristics on Heat input Changing of Laser Dissimilar Metals Welding

레이저 이종용접에서의 입열량 변화에 대한 용접특성

  • 모양우 (조선대 기계공학과) ;
  • 신병헌 (조선대 일반대학원 정밀기계공학과) ;
  • 신호준 (조선대 일반대학원 정밀기계공학과) ;
  • 유영태 (조선대학교 기전공학과)
  • Published : 2006.04.01

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 works 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, stain-stress behavior and the hardness of the welded part are investigated. From the results of the investigation, it has been shown that the optimal welding condition without defects in the vicinity of the welded area and with a good welding qualify is 1600W of the laser power, 0.85m/min of welding speed and $4{\ell}/min$ of pressure for shielding gas.

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References

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