Operation Manual

HEIDENHAIN MANUALplus 4110 171
4.6 Thread and Undercut Cycles
Cycle run
1 Calculate the proportioning of cuts.
2 Move to thread starting point X1, Z1.
3 Move to end point Z2 at programmed feed rate, taking the "run-out
angle WE" into account.
4 Return on paraxial path and approach for next thread groove.
5 Repeat 3 and 4 for all thread grooves.
6 Approach for next pass, taking the reduced cutting depth and the
"feed angle A" into account.
7 Repeat 3 to 6 until "no. threads D" and "depth U" are reached.