Polygonal Turning - Siemens Sinumerik 802D sl Programming Manual

Enhanced Level Commands
4.6 Advanced functions
4.6.2

Polygonal turning

When rotating the workpiece and a tool at a certain ratio, a polygonal figure can be
machined.
For example, by changing conditions such as rotation ratio of workpiece and tool
as well as the number of cutters, a square or hexagon can be machined. Under
certain circumstances, the machining time can be reduced compared to machining
using C and X axis in polar coordinate interpolation.
Due to the nature of such kind of machining however, the machined figure is not
exactly polygonal. Typical applications are the heads of square and/or hexagon
bolts or nuts.
Fig. 4-44
Format
G51.2 P...Q...;
P, Q: Rotation ratio (spindle / Y axis)
Setting range: Integer 1 to 9 for both P and Q
The sign of address Q is used to specify the Y axis rotation direction.
4-148
Hexagon bolt
SINUMERIK 802D sl/840D sl840D/840Di sl/840Di/810D ISO Turning -- 04.07 Edition
© SIEMENS AG 2007 All rights reserved
04.07