HEIDENHAIN iTNC 530 (340 420) - Manual (Page 131)

HEIDENHAIN iTNC 530 103
5.2 T
ool D
a
ta
Tool radius R
You can enter the tool radius R directly.
Delta values for lengths and radii
Delta values are offsets in the length and radius of a tool.
A positive delta value describes a tool oversize (DL, DR, DR2>0). If you
are programming the machining data with an allowance, enter the
oversize value in the TOOL CALL block of the part program.
A negative delta value describes a tool undersize (DL, DR, DR2<0). An
undersize is entered in the tool table for wear.
Delta values are usually entered as numerical values. In a TOOL CALL
block, you can also assign the values to Q parameters.
Input range: You can enter a delta value with up to ± 99.999 mm.
Entering tool data into the program
The number, length and radius of a specific tool is defined in the TOOL
DEF block of the part program.
U U U U To select tool definition, press the TOOL DEF key.
U U U U Tool number : Each tool is uniquely identified by its
tool number.
U U U U Tool length : Compensation value for the tool length
U U U U Tool radius : Compensation value for the tool radius
Example
Delta values from the tool table, together with the tool
length and radius, result in the physical (measurable) size
of a tool. By defining the delta values in the program you
simply change the calculated size of a tool and, with it, the
contour to be machined.
DR<0
DR>0
DL<0
R
DL>0
L
R
In the programming dialog, you can insert the values for
tool length and radius directly into the dialog box. Simply
press the actual-position capture key and the desired soft
key.
4 TOOL DEF 5 L+10 R+5