Application field

Hard turning of the plane surface from a spur gear and a reverse idler gear

Hard turning of the plane surface from a spur gear

spur gear

cutting parameters:
Cutting speed = 120 m/min  
Feed rate = 0,1mm
Material 20 MnCr5
Hardness 58 HRc
Insert CNGA120408-H-25C-2MC/S

Face turning ø200mm auf ø100mm
11 cross holes ø 16mm
Surface quality Ra. 0,2 – 0,3
Stock 0,2 – 0,5mm

Schneide
toollife
so far current
200 pcs 275 pcs

Hard turning reverse idler gear

reverse idler gear

cutting parameters:
                                                 before        finished
Vc (m/min)                                 140             282
Feed rate (mm)                           0,07            0,12
ap                                              0,825          0,2
Material TL4521
Hardness 60 HRc
Insert CNMA120412T-40EW

Face turning, chamfer, inner turning
Surface quality Ra. 0,25 – 0,3