A Study on the Case Hardning Depth of Tool Steel by YAG LASER

YAG 레이저에 의한 공구강의 표면경화 깊이에 관한 연구

  • Published : 1998.03.01

Abstract

Case hardening of tool steel(SK5) was investigated after YAG laser irradiation. In the case of beam passes, martensite formed in the melt zone and in former pearlite regions of the austenization zone exhibited very high Vickers Hardness values. The molten depth and radius, micro structure, hardness were investigated as a function of defocusing distance, pulse width, and power density.

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