
R Nose angle Angle of the tool tip. (When “R__” is not specified, the
parameter 9810 is used as Nose angle) In case of that pocket
figure was inputted as the machining figure, cutting back
compensation will be done as the following figure Fig.1.1.8.
Note) In cutting back compensation, the tail back angle of Tool, TLBACK,
shown in below Fig.1.1.10 can be specified in the parameter P9801. And
the amount of the remained residual cutting part changes by the edge
angle Q, the nose angle R and TLBACK like the figure Fig.1.1.10 shown in
below. If the relation of Q, R and TLBACK is as follows, the alarm 3020
will occur.
180 - (Q+R) - P9801 > 90.0 degree
or
Cutting Edge Compensation
Non-cut area
+X
+Z
Cutting Back Compensation
Non-cut area
+X
+Z
Fig.1.1.8
(1) Inner surface (right hand) (2) Inner surface (left hand)
Q
R
R Q
(1) End face (negative direction) (2) End face (positive direction)
Q
R
R
Q
Fig.1.1.9
(1) Outer surface (right hand) (2) Outer surface (left hand)
Q
R
R Q