질화규소의 예열선삭가공시 경사각에 따른 절삭특성 (Cutting Characteristics on Rake Angle in Laser-Assisted Machining of Silicon Nitride)

서지정보

· 발행기관 : 한국정밀공학회
· 수록지 정보 : 한국정밀공학회지 / 26권 / 4호 / 47 ~ 54페이지
· 저자명 : 신동식, 임세환, 김종도, 이제훈, 이수진

초록

In the last few years, lasers have found new applications as tools for ceramic machining which is
laser-assisted machining(LAM). LAM process for the machining of difficult-to-machine materials
such as structural ceramics, has recently been studied on silicon nitride workpiece for a wide
range of operating condition. However, there have been few studies on rake angle in LAM
process. In this paper we analyzed difference of machinability between positive and negative rake
angle in tools. We have obtained interesting results that we could eliminate chattering, lower
specific cutting and cutting ratio in case of positive rake angle. The results suggest that positive
rake angled tools can make more plastic deformation and stable cutting of silicon nitride in
comparison with negative rake angled one.

영어초록

In the last few years, lasers have found new applications as tools for ceramic machining which is
laser-assisted machining(LAM). LAM process for the machining of difficult-to-machine materials
such as structural ceramics, has recently been studied on silicon nitride workpiece for a wide
range of operating condition. However, there have been few studies on rake angle in LAM
process. In this paper we analyzed difference of machinability between positive and negative rake
angle in tools. We have obtained interesting results that we could eliminate chattering, lower
specific cutting and cutting ratio in case of positive rake angle. The results suggest that positive
rake angled tools can make more plastic deformation and stable cutting of silicon nitride in
comparison with negative rake angled one.

참고자료

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