Siemens SINUMERIK 840D sl Operation/Programming Manual page 55

08/2005
2
Tool/cutting edge radius
offset
♥ Siemens AG, 2005. All rights reserved
SINUMERIK 840D sl Operation/Programming ShopTurn (BAT) – 08/2005 Edition
The workpiece contour and the traversing path of a tool are not
identical, since a tool should not move with its center-point along the
contour that is to be finished.
ShopTurn shifts the programmed tool path, depending on the radius of
the tool and on the machining direction, such that the tool's cutting
edge traverses exactly along the desired contour. This shifted tool
path is called the equidistant.
Equidistant
Equidistants during turning and milling
The controller calculates the shifted tool path from the tool radius
entered in the tool list and the wear values (see Sec. "Entering Tool
Wear Data").
You can find further information on radius offset in Sec. "Program
blocks".
Setting Up the Machine
2.5 Tools
Equidistant
2
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