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Copy Mills • M170 ™ Series
Recommended Starting Speeds
„ 
Recommended Starting Speeds [m/min]
P
M
K
N
S
H
1
2
3
4
5
6
1
2
3
1
2
3
1
2
3
1
2
3
4
1
2
3
TN2505
550
320
320
–
–
–
–
–
–
400
540
310
–
–
–
–
–
–
–
175
175
140
TN6525
420
240
240
–
–
–
–
–
–
300
365
190
–
–
–
–
–
–
–
140
140
115
360
205
205
–
–
–
–
–
–
250
280
155
–
–
–
–
–
–
–
95
95
80
410
320
280
235
310
205
190
120
125
275
215
180
–
–
–
–
–
–
–
–
–
–
TN6540
320
250
215
170
235
160
120
80
80
245
190
160
–
–
–
–
–
–
–
–
–
–
280
215
185
145
200
130
80
50
55
220
180
145
–
–
–
–
–
–
–
–
–
–
360
250
215
180
240
160
130
80
85
220
175
155
–
–
–
50
25
70
60
–
–
–
280
190
170
130
180
120
80
50
50
205
155
145
–
–
–
35
20
40
30
–
–
–
240
170
140
110
150
100
60
40
40
180
140
125
–
–
–
30
10
30
25
–
–
–
Material
Group
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]
Light
Machining
General
Purpose
Heavy
Machining
At 5,00 Axial Depth of Cut (ap)
Insert
Geometry
MM
MH
0,28
0,33
5%
0,41
0,58
0,74
0,98
0,20
0,24
10%
0,29
0,42 Programmed Feed per Tooth (fz)
as a % of Radial Depth of Cut (ae)
20%
0,53
0,15
0,22
0,4
0,13
0,71
0,18
0,32
0,53
0,16 30%
0,19
0,28
10% Programmed Feed per Tooth (fz)
as a % of Radial Depth of Cut (ae)
20% 30%
0,35
0,46
40–100%
0,12
0,18
0,32
0,14
0,25
0,42
Insert
Geometry
MM
MH
At 2,00 Axial Depth of Cut (ap)
Insert
Geometry
MM
MH
5%
0,35
0,42
0,51
0,73
0,93
1,23
0,25
0,30
0,37
0,53 0,67
0,88
0,19
0,23
0,28
0,39
0,50
0,66
0,17
0,20 0,24
0,34
10%
0,49
0,71 Programmed Feed per Tooth (fz)
as a % of Radial Depth of Cut (ae)
20%
0,89
0,25
0,37
0,67
0,22
1,18
0,30
0,53
0,88
0,26 30%
0,32
0,46
10%
0,68
0,97 Programmed Feed per Tooth (fz)
as a % of Radial Depth of Cut (ae)
20%
1,24
0,35
0,51
0,92
0,30
1,63
0,41
0,73
1,21
0,36 30%
0,44
0,63
0,44
0,57 0,15
0,18 0,40
0,53 Insert
Geometry
MM
MH
0,58
0,76 40–100%
0,20
0,29
0,53
0,24
0,42
0,70 Insert
Geometry
MM
MH
0,80
1,05 40–100%
0,28
0,40
0,73
0,33
0,58
0,96 Insert
Geometry
MM
MH
40–100%
0,22
0,32
Insert
Geometry
MM
MH
0,47
0,56
5%
0,68
0,98
1,25
1,66
0,34
0,40
At 0,50 Axial Depth of Cut (ap)
Insert
Geometry
MM
MH
0,64
0,77
5%
0,94
1,36
1,73
2,31
0,46
0,55
NOTE: Use “Light Machining” value as starting feed rate.
widia.com
M57
At 1,00 Axial Depth of Cut (ap)