Siemens SINUMERIK 840DE Programming Manual page 164

Programming Motion Commands
4.17 Tapping without compensating chuck (G331, G332)
Right-hand/left-hand threads
Right-hand or left-hand threads are defined in axis mode by the sign qualifying the lead:
• Positive lead, clockwise (same as M3)
• Negative lead, counterclockwise (same as M4)
The desired speed is also programmed at address S.
Programming
G331 X... Y... Z... I... J... K...
Or
G332 X... Y... Z... I... J... K...
Parameters
G331
G332
X Y Z
I
J
K
4-58
Tapping. Tapping is described by the drilling depth (end
point of the thread) and the lead.
Tapping retraction. This movement is described with the
same lead as the G331 movement. The reversal in the
direction of the spindle is performed automatically.
Drilling depth (end point) in a Cartesian coordinate
Drilling in
X direction, thread lead I
Y direction, thread lead J
Z direction, thread lead K
Thread lead in X direction
Thread lead in Y direction
Thread lead in Z direction
Value range of lead:
±0.001 to 2000.00 mm/revolution
Programming Manual, 10.2004 Edition, 6FC5 298-7AB00-0BP1
Fundamentals