Feedrate For Tapping Without Compensating Chuck (G331, G332) - Siemens SINUMERIK 840D Function Manual

Figure 5-9
5.2.4

Feedrate for tapping without compensating chuck (G331, G332)

Function
A thread can be tapped by rigid tapping with the functions G331 (tapping) and G332 (tapping
retraction).
Path feedrate
With G331 / G332, the path feedrate F for the axes involved in tapping is derived from the
effective spindle speed S and the programmed pitch:
F [mm/min] = S [rpm] * thread pitch [mm/U]
Requirement
The requirement for rigid tapping is a position-controlled spindle with position measuring
system.
Axes and spindles
Function Manual, 06/2019, A5E47437747B AA
Convex thread in the clockwise direction with end and intermediate point programming
V1: Feedrates
5.2 Path feedrate F
151