1. MQL

2. 1) MQL 2) MQL ? 3) MIST 4) 5) MQL 6) 7) 3. 1. MQL 1) 1 1 1/201/50 2) CHIP 3) 4) MQL 4. MQL 1) , 2) CHIP CHIP 3) MIST MIST , MIST COLLECTOR MQL 5. 2. MQL ? AIR MQL = /h ( 5/min = 300/h ) 6. 2-1) . , . , 7. - (1993) DRY 24% 18% 58% 42% 4% 54% 10% 20% 70% MCT 5% 36% 59% 23% 14% 63% 3% 17% 80% DRY , . . , DRY , , TAP, . , . 8. 2-2) MQL Minimal(Minimum) Quantity Lubrication ( ) MQL 325 /h . . : . : AIR BLOW : AIR BLOW + TOOL SHAPE > > . > 9. 2-3) 717% ( : 24%) ( + ) 10. 2-4) ( ) . 75 % 30% . 11. 2-5) ( ) : , , , , 40% 12. 3. MIST . - , , ( ) 13. : 0.5 5 14. 4. 15. 5. MQL MQL - 1990 MQL : , . MQL . -1990 : . 16. - 2000 : 4-8mm 20 GUN DRILL HSS DRILL , 5 . MQL , CHIP . 17. 6. MQL , . , LESS(MQL) . , CHIP CHIP , CHIP . , MQL . , . 18. 7. - - , 1998 19 - , OIL HOLE MQL Deep Hole , 7-1) MQL 19. OIL HOLE LONG DRILL MQL - : MQL 2 - MQL : : , CHIP , MQL CHIP CHIP CURL . 7-2) MQL 20. 1) MQL GUN DRILL HSS LONG DRILL DEEP HOLE MQL ( ) 3 ~ 5 7-3) CRANK SHAFT 21. , 100mm , 1 40 , . MQL , GUN DRILL, HSS LONG DRILL Deep Hole 1/3 ~1 /4 . GUN DRILL . 22. LESS ( ) FMS LESS , COST DOWN . 7-4) MQL 23. 1. MQL 2. NACHI-BUSINESS news Vol.3A3 May / 2004 3. NACHI-BUSINESS news Vol.3B2 Nov / 2004 4. Vol.76, No.5. 2010 5. Vol.77, No.12. 2011