
3.THREADING TYPES OF CYCLE MOTIONS B-63343EN/02
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NOTE
2 Depending on the minimum depth of cut
(parameter No.9833), inputted number may be
greater than actually needed. In such a case, the
actual number is reduced to a value below the
inputted number.
Further more, inputted number may differ slightly
from the actual number because of a degree of
error in the calculation.
METHOD
Select from [SINGLE-AMNT], [BOTH-AMNT], [STRGHT-
AMNT], [SINGLE-DPTH], [BOTH-DPTH] and [STRGHT-
DPTH].
[SINGLE-AMNT] Single edge cutting, constant
cutting amount.
H = Thread height D = Depth of cut
u = Finishing amount
[BOTH-AMNT] :Zigzag cutting, constant cutting
amount
d
n-2
= D sqrt(n-2)
d
n-1
= (D(sqrt(n-2) + sqrt(n)))/2
d
n
= D sqrt(n)
NOTE
If the depth of cut becomes smaller than the
minimum depth of cut (parameter No. 9833), the
depth of cut is fixed to the minimum depth of cut.
d
1
=D
d
n
=
Dsqrt(n)
H
u
d
1
=D
d
n-2
d
n-1
d
n
H
u