Proceedings of the KWS Conference (대한용접접합학회:학술대회논문집)

The Korean Welding and Joining Society (대한용접접합학회)
권호 표지

$CO_2$ Laser Cladding of VERSAlloy on the S20C with Powder Feeding

분말공급장치를 이용한 VERSAlloy의 S20C강 $CO_2$ 레이저 클래딩

  • 김재도 (인하대학교 공과대학 기계공학과) ;
  • 권진욱 (인하대학교 공과대학 기계공학과 대학원)
  • Published : 2001.10.01
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Abstract

Laser cladding processing allows rapid transfer of heat to the material being processed with minimum conduction into base metal, resulting in low total heat input. The effects of $CO_2$ laser cladding with powder feeding on mechanical properties of VERSAlloy were studied. Their low melting point (under 1093$^{\circ}C$) enables overlays to be applied with minimum dilution and base metal distortion. Experiment results indicated that powder feeding speed and quantity were important for laser cladding with powder feeding. The powder feeding speed should be adapted according to cladding speed for good shaping of clad layer. The effect of heat on the HAZ size can be limited and the growth of grain size of HAZ size was not serious.

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