Cutting tools tend to wear gradually with progressing of machining process due to extremely high surface loads and temperature from the relative motions between tool and workpiece. Especially, the high cutting temperature is a dominant factor in the relation to tool life. High-pressure coolant has been reported as an effective method to prevent the severe wear from cutting temperature. This research investigates efficient supplying conditions of high-pressure coolant with the CFD results from a internal-flush drilling process. The flow rate of coolant is increased drastically up to three times under 70 bar compared to conventional way.
목차
ABSTRACT 1. 서론 2. 드릴가공의 절삭유 유동 2.1 열전달과 절삭유 유동의 관계 2.2 고압 절삭유 해석 조건 3. 해석 결과 3.1 절삭유 공급조건과 유량 3.2 드릴 회전수에 따른유동 변화 4. 결론 References
키워드
High Pressure Coolant(고압 절삭유)Drilling(드릴가공)CFD(전산 유체 역학)Heat Transfer(열전달)Tool Life(공구수명)
저자
손성민 [ Seong Min Son | Member, School of Mechanical Engineering, Ulsan College ]
Corresponding author