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Face Mills • M640 Series
Recommended Starting Speeds
(Recommended Starting Speeds [m/min] — continued)
Material
Group
TN6501
1– – – –
2– – – –
3– – – –
P
4– – – –
5– – – –
6– – – –
1– – – –
M2
–
–
–
–
3– – – –
1 – – – 230
K2
–
–
–
–
3– – – –
1 2400
1440
1200
2400
N2
1640
980
800 1640
3 960 600 480 960
1– – – –
2– – – –
S
3– – – –
4– – – –
1– – – –
H2
–
–
–
–
3– – – –
NOTE: FIRST choice starting speeds are in bold type.
As the average chip thickness increases, the speed should be decreased.
THM-U
–
–
–
–
–
–
–
–
–
205
–
–
1440
980
600
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
180
–
–
1200
800
480
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
145
150
155
1080
820
540
–
–
–
–
–
–
–
THM
–
–
–
–
–
–
–
–
–
110
120
115
720
560
335
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
90
85
70
600
460
240
–
–
–
–
–
–
–
Recommended Starting Feeds
Recommended Starting Feeds [mm]
Light
Machining
General
Purpose
Heavy
Machining
Insert
Geometry
5%
Programmed Feed per Tooth (fz)
as a % of Radial Depth of Cut (ae)
10% 20% 30%
40–100%
.F..LDAL 0,13 0,34 0,47 0,10 0,25 0,34 0,07 0,18 0,25 0,06 0,16 0,22 0,06 0,15 0,20
.E..LD
0,13 0,34 0,47 0,10 0,25 0,34 0,07 0,18 0,25 0,06 0,16 0,22 0,06 0,15 0,20
.E..GD
0,13 0,48 0,54 0,10 0,35 0,39 0,07 0,26 0,29 0,06 0,23 0,25 0,06 0,21 0,23
NOTE: Use “Light Machining” value as starting feed rate.
Insert
Geometry
.F..LDAL
.E..LD
.E..GD
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