HEIDENHAIN SW 54843x-03 DIN Programming - Manual (Page 73)

HEIDENHAIN MANUALplus 620, CNC PILOT 640 73
2.3 Units—Recessing
2.3 Units—Recessing
"ICP contour recessing" unit
The unit machines the contour described in the FINISHED program
section axially/radially from "NS to NE". Any auxiliary contour defined
in FK will be used.
Unit name: G860_ICP / Cycle: G860 (see page 283)
Access to the technology database:
 Machining operation: Contour recessing
 Affected parameters: F, S, E
Contour form
DQ
Number of recessing cycles
DX, DZ Distance to subsequent recess in X, Z direction (DX: radius
value)
Further parameters of the contour form: see page 62
Cycle form
I, K
Oversize in X, Z direction (I: diameter value)
SX, SZ Cutting limit (SX: diameter value)—(default: no cutting limit)
ET Recessing depth by which one cut is fed.
P Recessing width (default: 0.8 x tool width)
E Finishing feed rate. Differing feed rate used only for the
finishing process.
EZ Period of dwell after recessing path (default: time for one
spindle revolution)
Q Roughing/finishing (process variants)
 0 (SS): Roughing and finishing
 1 (SP): Only roughing
 2 (SL): Only finishing
H Type of retraction at end of cycle
 0: Return to starting point
 Axial recess: First Z, then X direction
 Radial recess: First X, then Z direction
 1: Positions in front of the finished contour
 2: Retracts to safety clearance and stops
O End of rough cut
 0: Lift-up at rapid
 1: Half recessing width 45°
U End of finishing cut
 0: Value from global parameter
 1: Parting horizontal element
 2: Complete horizontal element
Further forms: see page 60