HEIDENHAIN IK 5494-2D - Manual (Page 234)

212 QC5200 Series User’s Guide
Profile
The profile tolerance can be applied to profile features and is used to specify the acceptable material
deviation outside and inside the nominal part profile. Tolerances can be specified as bilateral (equal) or as
non-bilateral (unequal).
Equal bilateral tolerances
Bilateral tolerance zone will be centered around the edges of the nominal profile. For example, an equal
bilateral tolerance of 0.005 will be
applied as ±0.0025.
Check the Bilateral box and enter
the desired tolerance value into
the Tolerance data field for equal
bilateral tolerances.
Unequal tolerances
Unequal bilateral or unilateral tolerance values are specified by the user for In-material tolerance and Out-
material tolerances. This example
shows a boss with different In-ma-
terial and Out-material tolerances.
Clear the Bilateral box and enter
the desired In-material and Out-
material tolerance values in the
data fields provided.
Tolerances can be applied to up to 5 different (Form) areas of the part profile. To apply a tolerance to
an area, select the area using the mouse cursor in the Measure Profile window, then apply a tolerance as
shown above. Tolerance (Form) areas can be displayed and edited by clicking the Tools/Tolerance/Profile
menu item.
An equal bilateral tolerance of 0.005 is applied as... ±0.0025
Unequal bilateral tolerances are applied as... +0.003 and - 0.001
Selected areas... can be assigned different tolerances that are shown and edited in the
Advanced Profile Tolerance Results screen