7Leaders

Cutting Conditions

T785FX / T787FX / T789FX

T764FX / T766FX / T768FX

T752FX

T786FX / T788FX

T786FX T788FX T752FX T764FX T766FX T768FX T785FX T787FX T789FX

Dc

Dc

Dc

Dc

cutting speed Vc (m/min)

feed per tooth fz(mm)

cutting speed Vc (m/min)

feed per tooth fz(mm)

cutting speed Vc (m/min)

feed per tooth fz(mm)

cutting speed Vc (m/min)

feed per tooth fz(mm)

Carbon Steel Materials

80~200

0.005×Dc

80~200

0.005×Dc

80~200

0.005×Dc

80~200

0.005×Dc

GR1 Carbon Steel

<24HRC Low-alloyed Steel <30HRC Hi-alloyed Steel 30~38HRC Hardened Steel 38~48HRC Hardened Steel

80~170

0.005×Dc

80~170

0.005×Dc

80~170

0.005×Dc

80~170

0.005×Dc

GR2

P

80~140

0.004×Dc

80~140

0.004×Dc

80~140

0.004×Dc

80~140

0.004×Dc

GR3

Hardened Steel Materials

20~30

0.003×Dc

20~30

0.003×Dc

20~30

0.003×Dc

20~30

0.003×Dc

GR4

H

15~20

0.002×Dc

15~20

0.002×Dc

15~20

0.002×Dc

15~20

0.002×Dc

GR5

Stainless Steel Materials

40~100

0.003×Dc

40~100

0.003×Dc

40~100

0.003×Dc

40~100

0.003×Dc

GR8-1 Ferritic 、 Martensitic

30~80

0.003×Dc

30~80

0.003×Dc

30~80

0.003×Dc

30~80

0.003×Dc

GR8-2 Austenitic

M

30~70

0.003×Dc

30~70

0.003×Dc

30~70

0.003×Dc

30~70

0.003×Dc

GR8-3 Austenitic-ferritic

Austenitic-ferritic Heat-resistant

30~60

0.003×Dc

30~60

0.003×Dc

30~60

0.003×Dc

30~60

0.003×Dc

GR8-4

Cast Iron Materials

60~180

0.005×Dc

60~180

0.005×Dc

60~180

0.005×Dc

60~180

0.005×Dc

GR9-1 Grey cast iron

K

60~150

0.005×Dc

60~150

0.005×Dc

60~150

0.005×Dc

60~150

0.005×Dc

GR9-2 Nodular cast iron

Aluminium Steel Materials

Wrought Aluminium alloys Aluminium cast alloys <10% Aluminium cast alloys >10%

GR10-1

GR10-2

GR10-3

Copper Steel Materials

GR11-1 Pure Copper

N

GR11-2 Brass

GR11-3 Bronze

Plastics Steel Materials

GR12 Plastics

FRP CFRP Steel Materials

GR13 FRP CFRP

Titanium Materials

GR15 Titanium

Nickel Materials

GR16-1 Nickel

GR16-2 cobalt-base alloys

S

GR16-3 Iron-based alloy

Heat-resistant Steel Materials

GR17 Heat-resistant Steel

※ All cutting data are for reference only. Please adjust according to actual machining conditions. 1. Please work with good rigidity / high precision facilities and collet chuck. 2. Please choose proper cutting fluid. 3. The cutting data is reference value only. Please adjust it according to your real working conditions. 4. If RPM is lower than the reference value, the Feed rate (fz) and RPM should be reduced by the same proportion. 5. If vibration occurs during cutting, please reduce cutting parameter.

140

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