Tapered Api Thread G352 - HEIDENHAIN CNC PILOT 640 User Manual

DIN/ISO programming | Thread cycles
Cycle run:
1 Calculates the number of cutting passes
2 Executes a thread cut
3 Returns at rapid traverse and approaches for next pass
4 Repeats 2 to 3 until the complete thread has been cut
5 Executes air cuts
6 Returns to starting point

Tapered API thread G352

G352 cuts a tapered single or multi-start API thread. The Thread
depth decreases at the overrun at the end of thread.
Parameters:
X: Final point (diameter value)
Z: Final point
XS: Starting diameter
ZS: Starting position Z
F: Thread pitch
U: Thread depth
U > 0: Internal thread
U <= 0: External thread (lateral surface or front face)
U = +999 or –999: Thread depth is calculated
I: Max. approach
V: Type of infeed
0: Const. mach. X-section
1: Const. infeed
2: EPL with distrib. of cuts
3: EPL w/o distrib. of cuts
4: MANUALplus 4110
5: Constant infeed (4290)
6: Const. w/ distrib. (4290)
H: Type of offset for smoothing the thread flanks (default: 0)
0: Without offset
1: From left
2: From right
3: Alternating left/right
A: Approach ang. (range: –60° < A < 60°; default: 30°)
A < 0: Infeed on left thread flank
A > 0: Infeed on right thread flank
R: Remaining cut depth (V=4)
W: Taper angle (range: –45° < W < 45°)
WE: Run-out angle (range: 0° < WE < 90°)
D: No.gears
Q: Number no-load.
C: Start angle
HEIDENHAIN | User's Manual smart.Turn and DIN Programming | 12/2017
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