• Recommended Starting Speeds [m/min]

Material

TN2505 TN6525 TN6540

Group

1550420360410320280360280240
2320240205320250215250190170
3320240205280215185215170140

P

4235170145180130110
5310235200240180150
6205160130160120100
1190120801308060
M21208050805040
31258055855040
1400300250275245220220205180
K2540365280215190180175155140
3310190155180160145155145125
1
N2
3
1503530
2252010

S

3704030
4603025
117514095
H217514095
314011580

NOTE: FIRST choice starting speeds are in bold type. As the average chip thickness increases, the speed should be decreased.

Recommended Starting Feeds

  • Recommended Starting Feeds [mm]
LightGeneralHeavy
MachiningPurposeMachining

At 0,60 Axial Depth of Cut (ap) • HF10

Programmed Feed per Tooth (fz) as a % of Radial Depth of Cut (ae) Insert Insert

Geometry 5% 10% 20% 30% 40–100% Geometry

HF 1,01 1,57 – 0,67 0,97 1,41 0,48 0,69 0,97 0,42 0,59 0,83 0,38 0,54 0,75 HF

At 0,60 Axial Depth of Cut (ap) • HF12

Programmed Feed per Tooth (fz) as a % of Radial Depth of Cut (ae) Insert Insert

Geometry 5% 10% 20% 30% 40–100% Geometry

HF 0,91 1,53 2,81 0,61 0,96 1,43 0,45 0,69 0,99 0,39 0,59 0,85 0,35 0,54 0,77 HF

At 0,60 Axial Depth of Cut (ap) • HF13

Programmed Feed per Tooth (fz) as a % of Radial Depth of Cut (ae) Insert Insert

Geometry 5% 10% 20% 30% 40–100% Geometry

HF 0,94 1,58 2,82 0,64 1,00 1,49 0,46 0,71 1,03 0,40 0,61 0,88 0,37 0,56 0,80 HF

NOTE: Use “Light Machining” value as starting feed rate.