드릴가공 냉각효율에 관한 고압 절삭유 공급조건 해석 Analysis of High-pressure Coolant Supply Conditions on Cooling Efficiency of Drilling Process
한국기계기술학회지
(韓國機械技術學會誌)
제19권 제2호
(2017.04)
pp.286-291
pp.286-291
한국기계기술학회
(Korean Society of Mechanical Technology)
초록
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.
저자