
8.THREAD CYCLE CYCLE MACHINING B-64254EN/02
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8.3.3 Cutting Method
Following 6 cutting methods are available. The selection of the cutting
method is done according to the value specified in data input field
METH.
(1) METH = 1 : Constant amount of cut, one-edged cutting
Tip of the
blade
d1
d2
d3
dn
H
FIN
The tool cut in order to keep constant the amount of
material cut between each step. The tool cut only with
one edge
A
D-CUT = Cut amount
FIN = Finish amount
Depth of H = Screw (value obtained by shape data)
A = Tip of the blade corner
Each thread cut cycle, cut amount dn
d1 = D-CUT
d2 = d1×sqrt (2)
d3 = d1×sqrt (3)
:
:
dn = d1×sqrt (n)
NOTE
When the amount of cut is smaller than the
minimum amount of cut (parameter No.9223), the
amount of cut is clamped to the value specified in
parameter No. 9223.