Widia - frézování s VBD | KL-TECH s.r.o. | www.klte.cz widia-frézování s vbd | Page 69

Face Mills • M640 Series
Recommended Starting Speeds
(Recommended Starting Speeds [m/min] — continued)
P
M
K
N
S
H
TN6501
THM-U
THM
1 – – – – – – – – –
2 – – – – – – – – –
3 – – – – – – – – –
4 – – – – – – – – –
5 – – – – – – – – –
6 – – – – – – – – –
1 – – – – – – – – –
2 – – – – – – – – –
3 – – – – – – – – –
1 – – – 230 205 180 145 110 90
2 – – – – – – 150 120 85
3 – – – – – – 155 115 70
1 2400 1440 1200 2400 1440 1200 1080 720 600
2 1640 980 800 1640 980 800 820 560 460
3 960 600 480 960 600 480 540 335 240
1 – – – – – – – – –
2 – – – – – – – – –
3 – – – – – – – – –
4 – – – – – – – – –
1 – – – – – – – – –
2 – – – – – – – – –
3 – – – – – – – – –
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
Programmed Feed per Tooth (fz)
as a % of Radial Depth of Cut (ae)
Insert
Geometry
5%
10%
20%
30%
Heavy
Machining
Insert
Geometry
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
.F..LDAL
.E..LD
.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 .E..GD
widia.com
H49
NOTE: Use “Light Machining” value as starting feed rate.