237
HEIDENHAIN TNC 426 B, TNC 430
X
Y
T
TOLERANCE (Cycle 32)
Fast contour milling is adapted to suit both the TNC and
your machine by the machine manufacturer. Your
machine manual provides more detailed information.
The TNC automatically smoothens the contour between two path
elements (whether compensated or not). The tool has constant
contact with the workpiece surface. If necessary, the TNC
automatically reduces the programmed feed rate so that the
program can be machined at the fastest possible speed without
+jerk+. As a result the surface quality is improved and the machine
is protected.
A contour deviation results from the smoothing out. The size of this
deviation (tolerance value) is set in a machine parameter by the
machine manufacturer. You can change the pre-set tolerance value
with Cycle 32 (see figure at top right).
Before programming, note the following:
Cycle 32 is DEF active which means that it becomes
effective as soon as it is defined in the part program.
You can reset Cycle 32 by defining it again and
confirming the dialog question after the TOLERANCE
VALUE with NO ENT. Resetting Cycle 32 reactivates the
pre-set tolerance:
ú
Tolerance value: Permissible contour deviation in mm
Example NC blocks
95 CYCL DEF 32.0 TOLERANCE
96 CYCL DEF 32.1 T0.05
8.8 Special Cycles
kkap8.pm6
30.06.2006, 07:04
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Summary of Contents for TNC 426 B
Page 3: ...BAUSKLA PM6 30 06 2006 07 03 2 www EngineeringBooksPdf com ...
Page 4: ...BAUSKLA PM6 30 06 2006 07 03 3 www EngineeringBooksPdf com ...
Page 6: ...CINHALT PM6 30 06 2006 07 03 2 www EngineeringBooksPdf com ...
Page 16: ...CINHALT PM6 30 06 2006 07 03 12 www EngineeringBooksPdf com ...
Page 17: ...Introduction 1 Dkap1 pm6 30 06 2006 07 03 1 www EngineeringBooksPdf com ...
Page 29: ...Manual Operation and Setup 2 Dkap2_3 pm6 30 06 2006 07 03 13 www EngineeringBooksPdf com ...
Page 83: ...Programming Tools 5 Fkap5 pm6 30 06 2006 07 03 67 www EngineeringBooksPdf com ...
Page 106: ...Fkap5 pm6 30 06 2006 07 03 90 www EngineeringBooksPdf com ...
Page 107: ...Programming Programming Contours 6 Gkap6 pm6 30 06 2006 07 04 91 www EngineeringBooksPdf com ...
Page 165: ...Hkap7 pm6 30 06 2006 07 03 150 www EngineeringBooksPdf com ...
Page 166: ...Programming Cycles 8 kkap8 pm6 30 06 2006 07 03 151 www EngineeringBooksPdf com ...
Page 253: ...kkap8 pm6 30 06 2006 07 04 238 www EngineeringBooksPdf com ...
Page 265: ...LKAP9 PM6 30 06 2006 07 04 250 www EngineeringBooksPdf com ...
Page 266: ...Programming Q Parameters 10 MKAP10 PM6 30 06 2006 07 04 251 www EngineeringBooksPdf com ...
Page 297: ...MKAP10 PM6 30 06 2006 07 04 282 www EngineeringBooksPdf com ...
Page 298: ...Test Run and Program Run 11 NKAP11 PM6 30 06 2006 07 04 283 www EngineeringBooksPdf com ...
Page 312: ...MOD Functions 12 Okap12 pm6 30 06 2006 07 04 297 www EngineeringBooksPdf com ...
Page 332: ...Tables and Overviews 13 Pkap13 pm6 30 06 2006 07 04 317 www EngineeringBooksPdf com ...