Machining data

Turning

Ferro- Titanit®- grades Tool quality, optionally Feed rate Cutting tool angles Cutting speed m/min
Rake angle Back rake angle Clearance angle
C-Spezial Cemented carbide, coated,
K 10 / K 30, high-speed steel (without cooling)		 0.02 – 0.1 mm/rev. 6° / 15° 0° / - 6° 6° / - 11° 10
WFN 8
S 8
NIKRO 143 5
NIKRO 128 5
U 5
CROMONI 0.02 – 0.04 mm/rev. 2.5
All grades Ceramic / fibre-reinforced ~ 0.1 – 0.5 mm/rev. - 6° - 6° + 6° > 25

Milling

Ferro-Titanit® grades Tool quality, optionally Feed rate Cutting speedm/min
C-Spezial Cemented carbide,
coated,
K 10 / K 30,
high-speed steel		 0.01 – 0.07 mm/tooth 6 - 12
WFN
S
NIKRO 143
NIKRO 128
U
CROMONI ~ 0.01 mm/tooth 2 - 5

Drilling

Ferro-Titanit® grades Tool quality, optionally Feed rate Cutting speed m/min
All grades Cemented carbide,
coated,
K 10 / K 30,
high-speed steel		 0.05 mm/rev. Rake angle 90 - 120° 2 - 4

Tapping

Ferro-Titanit® grades Tool quality, optionally Feed rate Rake angle Cutting speed m/min
All grades High-speed steel,
cemented carbide		 0 Cutting edge chamfer
1.5 - 2 mm wide,
large relief		 2 - 4

Sawing *

Ferro-Titanit® grades Tool quality, optionally Feed rate Constant a for feed rate calculation Cutting speed m/min
* Bandsaw (preferably), hacksaw (in exceptional cases)
C-Spezial Bimetal M 42 Constant a
Saw cut length
 800 mm²/min ~10
WFN
S
NIKRO 143 600 mm²/min
NIKRO 128
U
CROMONI 200 mm²/min < 5

Recommended saw tooth pitch by cut cross-section

Cross-section to be cut Normal toothing Combi-
Verzahnung
Up to 30 mm 10 teeth/inch 8/12 teeth/inch
30 - 70 mm 8 teeth/inch 5/8 teeth/inch
7 - 120 mm 4 teeth/inch 4/6 teeth/inch
> 120 mm 3 teeth/inch 2/3 teeth/inch