Windpower, as a new energy resource stored huge amount of energy, wind powerreserves is around 2.74×109MW in the world. Amount them, 2×107MW are availableto be harnessed. It is 10 times larger than total amount of applicable waterenergy on the earth. Wind power has caused more and more attention across theworld.
	
Mainshaft is a key component that connecting hub and gearbox, made of 34CrNiMo6、42CrMo4, etc. It is usedto transfer revolving torque of rotor blade to gearbox. Heave tight coupling ismost used device for connecting main shaft and gearbox, it guaranteesconcentric between main shaft and gearbox, also is able to avoid maintenance inoperation.
	

	
	
	Twoside machining 
	
	
	
	Rough milling 
	
	Tool:FMP03-315-D60-LN25-12
	Insert: LNKT2510-ZR/YBG302
	Cutting data:Vc=120m/min,fz=
	
	Finish milling 
	
	Tool:FMA07-315-C60-ON08-16
	Insert: ONHU08T508-PF/YBM253
	ONHU08T508-W/YBM253
	Cutting data:Vc=150m/min,fz=0.2mm/z,ap=2.5mm,ae=
	
	Shoulder milling 
	
	
	Rough milling
	
	Tool:FMP03-315-D60-LN25-12
	Insert: LNKT2510-ZR/YBG302
	Cutting data:Vc=
	
	Finish milling
	Tool:EMP02-125-B40-AP16-10
	Insert: APKT160408-PF/YBC301
	Cutting data:Vc=150m/min,fz=0.15mm/z,ap=
	
	
	External turning 
	
	
	Tool:PZLNR5050T25
	Insert: ZNUX40-TC/YBC252
	Cutting data:Vc=120m/min,fr=
	
	
	Arc machining 
	

 
	Insert: RCMX3209MO/YBC251
	Cutting data:Vc=100m/min,fr=
	
	Grooving 

 
	
	Tool:QEKD3232R22-6N
	Insert: ZRKD06-MG/YBG302
	Cutting data:Vc=150m/min,fr=0.15mm/r,ap=6mm
	
	
	
 
	
	Tool:ZTD04-450-XP40-SP14-02
	Insert: SPGT140512-PM/YBG212(內(nèi))/YBG205(外)
	Cutting data:Vc=120m/min,fr=0.12mm/r,
	
	Smallface hole-making

 
	
	
	Drilling 
	Tool:1736SU
	Cutting data:Vc=60m/min,fr=0.16mm/r,
	
	
	Threading 
	Tool:4111-M20
	
	
 
	
	
	
	
