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=0.5mm/z，ap=12mm，ae=250mm

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=140mm

Shoulder milling 

Rough milling

Tool：FMP03-315-D60-LN25-12

Insert： LNKT2510-ZR/YBG302

Cutting data：Vc=120m/min，fz=0.5mm/z，ap=12mm，ae=80mm

Finish milling

Tool：EMP02-125-B40-AP16-10

Insert： APKT160408-PF/YBC301

Cutting data：Vc=150m/min，fz=0.15mm/z，ap=2mm，ae=80mm

External turning 

Tool：PZLNR5050T25

Insert： ZNUX40-TC/YBC252

Cutting data：Vc=120m/min，fr=0.5mm/r，ap=8mm

Arc machining 

Insert： RCMX3209MO/YBC251

Cutting data：Vc=100m/min，fr=0.5mm/r，ap=8mm

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(内)/YBG205（外）

Cutting data：Vc=120m/min，fr=0.12mm/r，

Smallface hole-making

Drilling

Tool：1736SU05C-1750

Cutting data：Vc=60m/min，fr=0.16mm/r，

Threading

Tool：4111-M20