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Copy Mills • M170 ™ Series
Recommended Starting Speeds
„ 
Recommended Starting Speeds [m/min]
P
M
K
N
S
H
TN2505
TN6525
TN6540
1
2
3
4
5 550
320
320
–
– 420
240
240
–
– 360
205
205
–
– 410
320
280
235
310 320
250
215
170
235 280
215
185
145
200 360
250
215
180
240 280
190
170
130
180 240
170
140
110
150
6
1
2
3
1
2
3
1
2
3
1
2
3
4
1
2
3 –
–
–
–
400
540
310
–
–
–
–
–
–
–
175
175
140 –
–
–
–
300
365
190
–
–
–
–
–
–
–
140
140
115 –
–
–
–
250
280
155
–
–
–
–
–
–
–
95
95
80 205
190
120
125
275
215
180
–
–
–
–
–
–
–
–
–
– 160
120
80
80
245
190
160
–
–
–
–
–
–
–
–
–
– 130
80
50
55
220
180
145
–
–
–
–
–
–
–
–
–
– 160
130
80
85
220
175
155
–
–
–
50
25
70
60
–
–
– 120
80
50
50
205
155
145
–
–
–
35
20
40
30
–
–
– 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 8,00 Axial Depth of Cut (ap)
Insert
Geometry
MM
MH
0,39
0,51
5%
0,52
0,70
0,82
1,17
0,28
0,37
10%
0,37
0,50 Programmed Feed per Tooth (fz)
as a % of Radial Depth of Cut (ae)
20%
0,59
0,21
0,28
0,44
0,18
0,84
0,28
0,38
0,63
0,24 30%
0,24
0,33
10%
0,43
0,58 Programmed Feed per Tooth (fz)
as a % of Radial Depth of Cut (ae)
20%
0,68
0,24
0,32
0,51
0,21
0,97
0,32
0,43
0,72
0,28 30%
0,28
0,38
10%
0,57
0,76 Programmed Feed per Tooth (fz)
as a % of Radial Depth of Cut (ae)
20%
0,89
0,32
0,42
0,66
0,28
1,28
0,42
0,57
0,95
0,36 30%
0,37
0,50
10%
0,78
1,04 Programmed Feed per Tooth (fz)
as a % of Radial Depth of Cut (ae)
20%
1,22
0,43
0,58
0,91
0,38
1,75
0,57
0,78
1,30
0,50 30%
0,51
0,68
0,38
0,55 40–100%
0,17
0,22
0,35
0,22
0,30
0,50 Insert
Geometry
MM
MH
0,44
0,63 40–100%
0,19
0,26
0,40
0,25
0,35
0,58 Insert
Geometry
MM
MH
0,58
0,83 40–100%
0,25
0,34
0,53
0,33
0,45
0,76 Insert
Geometry
MM
MH
0,79
1,13 40–100%
0,35
0,46
0,72
0,45
0,62
1,03 Insert
Geometry
MM
MH
At 4,00 Axial Depth of Cut (ap)
Insert
Geometry
MM
MH
0,45
0,59
5%
0,60
0,81
0,94
1,36
0,32
0,43
Insert
Geometry
MM
MH
0,59
0,77
5%
0,79
1,06
1,24
1,79
0,43
0,56
At 1,00 Axial Depth of Cut (ap)
Insert
Geometry
MM
MH
0,81
1,06
5%
1,08
1,46
1,71
2,48
0,58
0,76
NOTE: Use “Light Machining” value as starting feed rate.
widia.com
M69
At 2,00 Axial Depth of Cut (ap)