Cutting Edge Position For Milling And Tapping Tools - Siemens SINUMERIK 840D sl Function Manual

W1: Tool offset
18.7 Cutting edge data modification for tools that can be rotated
Figure 18-46 Cutting edge reference point and cutting edge position (SL) for tool rotation
A tool with the cutting edge position 3, the clearance angle 22.5° and holder angle 112.5° is
rotated. For rotations up to 22.5°, the cutting edge position is maintained, the position of the
cutting edge reference point relative to the tool however, is compensated in such a way that
the relative position of both points are maintained in the machining plane. For bigger rotations
(up to 67.5°), the cutting edge position changes to value 8.
Note
As the cutting edge reference point is defined by the tool length vector, modifying the cutting
edge reference point changes the effective tool length.
18.7.5

Cutting edge position for milling and tapping tools

Milling and tapping tools
Milling and tapping tools means the following tools whose tool type ($TC_DP1) has values in
the range of 100 to 299.
Tools are treated independently of tool type such as milling and tapping tools if:
SD42950 $SC_TOOL_LENGTH_TYPE = 1
Length of cutting edge
A cutting edge position is also introduced for the so defined milling and tapping tools which is
modified according to the following description, in case of rotations.
Any specified cutting edge position for tools that are not milling and tapping tools or turning
tools according to the mentioned definitions, is not evaluated.
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Function Manual, 01/2015, 6FC5397-0BP40-5BA2
Basic Functions