Arbor cutters:
Shell end mills, side milling cutters and milling heads are clamped on arbors.
For driving the milling cutters, arbors are equipped with a longitudinal wedge
or a driver. Never clamp end mills without a longitudinal wedge or driver. Side
milling cutters can be clamped with right- or left-hand cutting (pay attention
to the direction of rotation). Here too, all components must be clean and must
not be damaged.
18.7.6
Clamping of workpieces
The workpieces can be clamped with machine vice, clamping screws, clamps, clamping bases, low
and flat clamps, eccentric clamps, dividing head, rotary tables, jaw chucks, ...
Requirements which the clamping device must meet:
•
Rigid clamping of the workpieces
•
No deformation of the workpieces during clamping and milling (weakening of the
workpiece during milling).
•
Good repeatability of the clamping process (for more than one part).
Fast, easy and safe handling.
•
18.7.7
Feed
2 bis 4mm
Tool
roughing
HSS
0,004
18.7.8
Cutting speed (guide values)
Material
Steel to 500 N/mm
2
Steel up 500 N/mm
2
Stainless steel 18/10
Aluminum
Brass (CuZn)
Examples of speeds:
Cutter:
Ø 2 mm
6 m/min
955 min
8 m/min
1274 min
10 m/min
1592 min
12 m/min
1911 min
HOLZMANN MASCHINEN GmbH www.holzmann-maschinen.at
Guide values for the feed in mm per tooth
Cutter Ø
Cutter Ø
5 bis 8 mm
finishing
roughing
0,003
0,03
Tool
end mill
HSS
25 to 35
HSS
15 to 22
HSS
10 to 12
HSS
70 to 90
HSS
50 to 60
Ø 4 mm
478 min
-1
-1
637 min
-1
-1
796 min
-1
-1
955 min
-1
-1
Cutter Ø
10 bis 25 mm
finishing
roughing
0,01
0,1
Cutting speed m/min
shell end mill
25 to 35
15 to 22
10 to 12
70 to 90
60 to 70
Ø 6 mm
Ø 8 mm
318 min
239 min
-1
425 min
318 min
-1
531 min
398 min
-1
637 min
478 min
-1
OPERATION
Cutter Ø
25 bis 100 mm
finishing
roughing
0,07
0,02
side mill
20 to 25
12 to 15
8 to 10
60 to 70
50 to 60
Ø 10 mm
Ø 12 mm
191 min
159 min
-1
-1
255 min
212 min
-1
-1
318 min
265 min
-1
-1
382 min
318 min
-1
-1
finishing
0,1
-1
-1
-1
-1
39
BF16V