Cycle Parameters - HEIDENHAIN TNC 620 User Manual

5
Fixed cycles: Pocket milling / stud milling / slot milling
5.6 RECTANGULAR STUD (Cycle 256, DIN/ISO: G256, software option
19)

Cycle parameters

1st side length Q218: Stud length, parallel to the
reference axis of the working plane. Input range 0 to
99999.9999
Workpiece blank side length 1 Q424: Length of
the stud blank, parallel to the reference axis of the
working plane. Enter Workpiece blank side length
1 greater than 1st side length. The TNC performs
multiple stepovers if the difference between blank
dimension 1 and finished dimension 1 is greater
than the permitted stepover (tool radius multiplied
by path overlap Q370). The TNC always calculates a
constant stepover. Input range 0 to 99999.9999
2nd side length Q219: Stud length, parallel to the
minor axis of the working plane. Enter Workpiece
blank side length 2 greater than 2nd side length.
The TNC performs multiple stepovers if the
difference between blank dimension 2 and finished
dimension 2 is greater than the permitted stepover
(tool radius multiplied by path overlap Q370). The
TNC always calculates a constant stepover. Input
range 0 to 99999.9999
Workpiece blank side length 2 Q425: Length of
the stud blank, parallel to the minor axis of the
working plane. Input range 0 to 99999.9999
Corner radius Q220: Radius of the stud corner.
Input range 0 to 99999.9999
Finishing allowance for side Q368 (incremental):
Finishing allowance in the working plane, is left over
after machining. Input range 0 to 99999.9999
Angle of rotation Q224 (absolute): Angle by which
the entire machining is rotated. The center of
rotation is the position at which the tool is located
when the cycle is called. Input range -360.0000 to
360.0000
Stud position Q367: Position of the stud in
reference to the position of the tool when the cycle
is called:
0: Tool position = stud center
1: Tool position = left corner below
2: Tool position = right corner below
3: Tool position = right corner top
4: Tool position = left top corner top
Feed rate for milling Q207: Traversing speed of
the tool in mm/min while milling. Input range 0 to
99999.999 alternatively FAUTO, FU, FZ
152
TNC 620 | User's Manual Cycle Programming | 3/2014