HEIDENHAIN MANUALplus 4110 - Manual (Page 165)

HEIDENHAIN MANUALplus 4110 165
4.6 Thr
ead and Under
c
ut Cy
cles
Thread cycle (longitudinal)
Call the thread-cutting menu.
Select the "Thread cycle."
Inner thread soft key
On: Internal thread
Off: External thread
This cycle cuts a single external or internal thread with a thread angle
of 30°. Tool infeed is performed in the X axis only.
Cycle parameters
 X, Z starting point of thread
 Z2 end point of thread
 F1 thread pitch (= feed rate)
 U thread depth
„ No input: Depth is calculated
External thread: U=0.6134*F1
Internal thread: U=–0.5413*F1
 I 1st cutting depth
„ I<U: First cut with cutting depth I—further cuts: Reduction of
cutting depth
„ I=U: One cut
„ No input: Calculation from U and F1
 T tool number
 S spindle speed / cutting speed
Cycle run
1 Calculate the proportioning of cuts.
2 Start first pass at Z.
3 Move to end point Z2 at programmed feed rate.
4 Return on paraxial path and approach for next pass.
5 Repeat 3 and 4 until "depth U" has been reached.