28 — M
achinist
c
alc™
P
ro
(cont’d)
KeysTRoKe
DIsPlay
O O
0.
1. Enter the Feed Rate:
3 2 5 f
feeD
$
325.
MM/MIn
2. Enter the Number of Teeth:
4 #
TeeTH
$
4.
3. Enter the Spindle Speed (RPM):
8 0 0 R
RPM
$
800.
4. Calculate the Feed per Tooth:
F
*
fPT 0.1016
MM
* Repeated presses of
F
will toggle through the inputs and outputs,
starting with the entered Number of Teeth.
RADIAL CHIP THINNING
In a Milling operation when the depth of a cut is less than half
the diameter of the tool, you can use the Radial Chip Thinning
to determine a new, faster and more efficient Chipload or Feed/
Tooth value.
Radial Chip Thinning –
based on Feed per Tooth, Tool Diameter and cut Depth
Calculate Radial Chip Thinning value with a Feed Per Tooth of
0.15 millimeters, a 25 millimeter Tool Diameter and a Cut Depth
of 2.5 millimeters:
KeysTRoKe
DIsPlay
O O
0.
1. Enter the Feed per Tooth:
. 1 5 F
fPT
$
0.15
MM
2. Enter the Tool Diameter:
2 5 d
DIa
$
25.
MM
UG4089E-A-inside.indd 28
6/9/2011 3:16:17 PM
