HEIDENHAIN SW 548328-05 DIN Programming - Manual (Page 175)

HEIDENHAIN MANUALplus 620, CNC PILOT 620/640
175
3.3 Units—Milling in Y axis
"Thread milling in XY plane" unit
The unit mills a thread in existing holes in the XY plane.
Unit name: G800_GEW_Y_STIRN / Cycle: G800 (see page 518)
Access to the technology database:
 Machining operation: Finish-milling
 Affected parameters: F, S
Parameters on the Position form
APP
Approach see page 63
CS Approach position C
Z1 Start point drill (starting point of hole)
P2 Thread depth
I Thread diameter
F1 Thread pitch
Parameters on the Cycle form
J
Direction of thread:
 0: Right-hand thread
 1: Left-hand thread
H Cutting direction
 0: Up-cut milling
 1: Climb milling
V Milling method
 0: The thread is milled in a 360-degree helix
 1: The thread is milled in several helical paths (single-
point tool)
R Approach radius
Further forms: see page 58