Laser-assisted machining에서 질화규소 시편의 표면온도와 절삭특성에 관한 연구

• 영문명: Investigation of the Surface Temperature and Cutting Characteristics of Silicon Nitride in Laser-Assisted Machining
• 발행기관: 한국레이저가공학회
• 저자명: 임세환(Se Hwan Lim) 이제훈(Jae Hoon Lee) 신동식(Dong Sig Shin) 김종도(Jong Do Kim) 김주현(Joo Hyun Kim)
• 간행물 정보: 『한국레이저가공학회지』한국레이저가공학회지 제12권 제1호, 25~33쪽, 전체 9쪽
• 주제분류: 공학 > 기계공학
• 파일형태: PDF
• 발행일자: 2009.03.30

영문 초록

In laser-assisted machining (LAM), laser beam is used to locally increase the temperature of a workpiece and thus to enhance the machinability. In order to set the temperature of the material removal area of a workpiece at an optimal value, process parameters, such as laser power, feed rate, and rotational velocity, have to be carefully controlled. In this work, the effects of laser power and feed rate on the temperature distribution of a silicon nitride rotating at a constant velocity were experimentally investigated. Using a pyrometer, temperatures at various locations of the silicon nitride were measured both in circumferential and axial directions. The measured temperatures were fitted to a quadratic equation to approximate the temperature at the cutting location. The machining results showed that cutting force and tool wear were decreased when the temperature at the cutting location was increased.

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ABSTRACT

1. 서론

2. 실험 장치 및 방법

3. 실험 결과 및 고찰

4. 결론

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참고문헌

키워드

Laser-assisted machining silicon nitride cutting force pyrometer