HEIDENHAIN TNC 640 User Manual page 470

12
Q465 Starting path? (incremental): Length of the
path in pitch direction on which the feed axes are
accelerated to the required velocity. The starting
path is outside of the defined thread contour.
Q466 Overrun path?: Length of the path in pitch
direction on which the feed axes are decelerated.
The overrun path is within the defined thread
contour
Q463 Maximum cutting depth?: Maximum
plunging depth perpendicular to thread pitch
Q467 Feed angle?: Angle at which the Q463
infeed is performed. The reference angle is formed
by the parallel line to the thread pitch
Q468 Infeed type (0/1)?: Define the type of
infeed:
0: Constant chip cross section (infeed lessens with
depth)
1: Constant plunging depth
Q470 Starting angle?: Angle of the turning spindle
at which the thread start is to be made.
Q475 Number of thread grooves?: Number of
thread grooves
Q476 Number of air cuts?: Number of air cuts
without infeed at finished thread depth
470
Cycles: Turning | THREAD EXTENDED (Cycle 832, DIN/ISO: G832)
HEIDENHAIN | User's manual for cycle programming | 10/2017
Q468=+0 ;TYPE OF INFEED
Q470=+0 ;STARTING ANGLE
Q475=+30 ;NUMBER OF STARTS
Q476=+30 ;NUMBER OF AIR CUTS
12 L X+80 Y+0 Z+2 FMAX M303
13 CYCL CALL