111
Table Shows Sz Values
5
6
7
8
0.013
0.020
0.030
0.037
0.047
0.053
0.060
0.063
0.065
0.068
0.080
0.020
0.086
0.090
0.094
0.119
0.008
0.012
0.017
0.024
0.026
0.033
0.038
0.040
0.040
0.040
0.044
0.012
0.048
0.048
0.048
0.060
0.006
0.009
0.013
0.016
0.021
0.024
0.025
0.028
0.028
0.030
0.036
0.009
0.040
0.040
0.042
0.052
0.006
0.009
0.012
0.013
0.015
0.019
0.022
0.025
0.025
0.028
0.035
0.009
0.035
0.038
0.040
0.047
Material Group
Peripheral Speeds
Material
Group
Cutter Speed
(m/min)
Material Types
1
2
3
4
5
6
7
8
Steels up to 500N/mm²
Malleble Cast Iron up to 120 HB
Steels of 500 - 800 N/mm²
Non - Alloyed Tool Steels
Pure Titanium
Steels of 800 - 1200 N/mm²
Hot Working Steels
Cast Iron of 120 - 180 HB
Stainless Steels
Titanium Alloys (Annealed)
Cast Iron of more than 180 HB
Titanium Alloys (Hardened)
Brass and Bronze (Cast)
Brass and Bronze (Rolled)
Plastics and similar
28 - 40
24 - 32
18 - 25
12- 18
7 - 12
35 - 45
45 - 70
200 - 250
