Die and Mould - Kennametal - #124

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Text version of the page
Recommended Feed Rates for Aluminium Machining Mills
Aluminium machining mills, helix angle 45°:
i
rel. width of cut ae
N
sz
-t-»
o o
-t-» l_
<D Q.
■D
a. ■(-»
.
~o
CO
'■4-»
■(-»
Ü
Correction factors for fz
Helix angle
Type AA
Type BA
20°/30° 45°
0,85
1,00
1,00
1,15
Example:
fzdiagram: fz45°helix
0,13
0,13x1,0 =
= 013
Application example
Full slot milling
Material............................................:
Tensile strength................................:
Milling tool........................................:
Milling diameter................................:
3,2315 (AlMgSil)
320 N/mm2
F2AA1600ADL45
16 mm
KC631M
2 cutting edges
300 m/min
14,5 mm
16 mm
Carbide grade. Number of edges z .
Cutting speed vc.....
Cutting depth ap.....
Width of cut ae .......
Result:
Plunging
Full slot milling
Feed per tooth fz Feed rate Vf
Speed n
2984 min"1 5968 min"1
0,13 mm 0,13 mm
776 mm/min 1552 mm/min
Attention: In plunging (drilling) only one cutting edge over centre
is in contact, i.e. only 1 x fz should be used to calculate the feed rate vf !
120

pageCatalog pdf di En 2012-02-06-12