Thread Milling - Cycle90 - Siemens SINUMERIK 808D User Manual

12.6.11

Thread milling - CYCLE90

Programming
CYCLE90 (RTP, RFP, SDIS, DP, DPR, DIATH, KDIAM, PIT, FFR, CDIR, TYPTH, CPA, CPO)
Pa rameters
Pa rameter D a ta type
RTP REAL
RFP REAL
SDIS REAL
DP REAL
DPR REAL
DIATH REAL
KDIAM REAL
PST REAL
FFR REAL
CDIR INT
TYPTH INT
CPA REAL
CPO REAL
Fu n ction
By using the cycle CYCLE90, you can produce internal or external threads. The path when milling threads is based on a
helix interpolation. All three geometry axes of the current plane, which you define before calling the cycle, are involved in this
motion.
Se quence for e xternal thread
Po sition reached prior to cycle start:
The starting position is any position from which the starting position at the outside diameter of the thread at the height of the
retraction plane can be reached without collision.
230
D e scription
Retraction plane (absolute)
Reference plane (absolute)
Safety clearance (enter without sign)
Final drilling depth (absolute)
Final drilling depth relative to the reference plane (enter without sign)
Nominal diameter, outer diameter of the thread
Core diameter, internal diameter of the thread
Thread pitch; value range: 0.001 ... 2000.000 mm
Feedrate for thread milling (enter without sign)
Direction of rotation for thread milling
Values: 2 (for thread milling with G2), 3 (for thread milling with G3)
Thread type
Values: 0=internal thread, 1=external thread
Center point of circle, abscissa (absolute)
Center point of circle, ordinate (absolute)
Programming and Operating Manual (Milling)
6FC5398-4DP10-0BA6, 09/2017