VARIOUS FUNCTIONS AND
PRECAUTIONS OF Symbolic FAPT
2. CAUTIONS FOR USING
(17) If the tool moves as if it almost rubbed the wall of the workpiece in
The tool may move along the wall of the workpiece while being
separated the finishing allowance away from the wall in portion Á in
semifinishing in a case shown in Fig. 2.5 (w). (No interference occurs.)
In this case, if you want to retract the tool obliquely upward and then
move it horizontally, define a minute dummy linear element as shown
in Fig. 2.5 (x), and divide the area on the wall rather than at the corner.
Fig. 2.5 (w) Fig. 2.5 (x)
Here is a minute linear
element (dummy element).
(18) If a portion to be left uncut is larger than the specified finishing
allowance in end facing
A portion to be left uncut may become larger than the specified
finishing allowance in end facing if the following conditions are
À Outer surface element À is tapered, and there is a minute chamfer
Á between À and end face element Â. (Fig. 2.5 (y))
Á Outer surface roughing is performed before end surface roughing.
Â The cutting area is divided as shown in Fig. 2.
In this case, cause the DS to face obliquely upward as shown in Fig.
Fig. 2.5 (y) Fig. 2.5 (z)