HEIDENHAIN TNC 426 (280 476) Pilot - Manual (Page 46)

47
Cycles
for
Machining
Holes
and
Threads
TAPPING (2) with Floating Tap Holder
Insert the floating tap holder
CYCL DEF: Select cycle 2 TAPPING
Set-up clearance: A
Total hole depth (thread length = distance between the
workpiece surface and the end of the thread): B
Dwell time in seconds (a value between 0 and 0.5 seconds)
Feed rate F = Spindle speed S x thread pitch P
For tapping right-hand threads, actuate the spindle with M3,
for left-hand threads use M4!
25 CYCL DEF 2.0 TAPPING
26 CYCL DEF 2.1 SET UP 3
27 CYCL DEF 2.2 DEPTH -20
28 CYCL DEF 2.3 DWELL 0.4
29 CYCL DEF 2.4 F100
30 L Z+100 R0 FMAX M6
31 L X+50 Y+20 FMAX M3
32 L Z+3 FMAX M99