HEIDENHAIN MANUALplus 4110 - Manual (Page 339)

HEIDENHAIN MANUALplus 4110 339
6.15 Thr
ead Cy
cles
Metric ISO thread G35
G35 cuts a longitudinal thread (internal or external thread). The thread
starts at the current tool position and ends at the "end point X, Z."
From the tool position relative to the end point of the thread,
MANUALplus automatically determines whether an internal or
external thread is to be cut.
Parameters
 X end point of thread (diameter value)
 Z end point of thread
 F thread pitch —default: F is determined from the diameter in the
standard table (see “Thread Pitch” on page 524).
 I maximum infeed —no input: I is calculated from the thread pitch
and the thread depth.
 Q number of air cuts (default: 0): after the last cut
 B remainder cuts (default: 0)
„ B=0: The last cut is divided into four partial cuts: 1/2, 1/4, 1/8 and
1/8.
„ B=1: Without distribution of remaining cut
Infeeds: If the division U/I provides a remainder, the first feed is
reduced. The last cut is divided into four partial cuts: 1/2, 1/4, 1/8 and
1/8
Example: G35
%35.nc
[G35]
N1 T45 G97 S1500 M3
N2 G0 X16 Z4
N3 G35 X16 Z-29 F1.5
END
„ "Cycle STOP" becomes effective at the end of a thread
cut.
„ The feed rate and spindle speed overrides are not
effective during cycle execution.
„ If you are programming an internal thread, it is advisable
to preset the "thread pitch F," since the diameter of the
longitudinal element is not the thread diameter. If you
have MANUALplus calculate the thread pitch
automatically, slight deviations may occur.
„ Feed forward control is switched on.