Tool Parameters 12 - 14: Wear - Tool Lengths; Tool Parameters 15 - 20: Wear - Tool Shape - Siemens SINUMERIK 840D sl Function Manual

W1: Tool offset
18.4 Tool cutting edge
References
Please refer to the following documentation for information about entering tool shapes (radius
for tool radius compensation) in tool parameters 6 to 11 and how these are calculated by
geometry tool radius compensation in the three geometry axes:
● Programming Manual, Fundamentals; Section: "Tool compensations" > "2½ D tool
compensation"
● Functions Manual - Special Functions; 3D tool radius compensation (W5)
For 3D face milling, please refer to:
● Programming Manual, Job Planning; Section: "Transformations" > "Three, Four and Five
axis Transformation (TRAORI)"
18.4.6

Tool parameters 12 - 14: Wear - tool lengths

Description
While geometry tool length compensation (tool parameters 3 to 5) is used to define the size
of the tool, wear tool length compensation can be used to correct the change in the active tool
size.
The active tool dimensions can change due to:
● Differences between the tool fixture on the tool measurement machine and the tool fixture
on the machine tool
● Tool wear caused during service life by machining
● Definition of the finishing allowances
Active tool size
The geometry tool compensation (tool parameters 3 to 5) and the wear tool length
compensation (tool parameters 12 to 14) are added together (geometry tool length 1 is added
to wear tool length 1, etc.) to arrive at the size of the active tool.
18.4.7

Tool parameters 15 - 20: Wear - tool shape

Description
While geometry tool radius compensation (tool parameters 6 to 11) is used to define the shape
of the tool, wear tool radius compensation can be used to correct the change in the active tool
shape.
The active tool dimensions can change due to:
● Tool wear caused during service life by machining
● Definition of the finishing allowances
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Function Manual, 01/2015, 6FC5397-0BP40-5BA2
Basic Functions