Contour Definition Programming And Addition Of Chamfers Or Radiuses - Siemens Sinumerik 840D sl Programming Manual

Drive commands
2.1 Interpolation commands
● Center point and end point in the absolute or incremental dimension (default)
● Radius and end point in Cartesian coordinates
Figure 2-4
Feed
During the circular interpolation, the feed can be specified exactly as during linear
interpolation (see Chapter "Linear interpolation (G01)").
2.1.4

Contour definition programming and addition of chamfers or radiuses

Chamfers or radiuses can be added after each traversing block between linear and circular
contours. For example, to grind sharp edges of workpieces.
The following combinations are possible during addition:
● between two straight lines
● between two circular arcs
● between a circular arc and a straight line
● between a straight line and a circular arc
Format
, C...; Chamfer
, R...; Rounding
22
For a circular interpolation with a central angle <= 180 degree, the programming should
be "R > 0" (positive).
For a circular interpolation with a central angle > 180 degree, the programming should be
"R < 0" (negative).
Circular interpolation with specification of Radius R
Programming Manual, 06/09, 6FC5398-7BP10-1BA0
ISO Milling