Proceedings of the Korean Society of Machine Tool Engineers Conference (한국공작기계학회:학술대회논문집)
- 1998.03a
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- Pages.53-58
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- 1998
A Study on the Case Hardning Depth of Tool Steel by YAG LASER
YAG 레이저에 의한 공구강의 표면경화 깊이에 관한 연구
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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