ICP programming | Programming ICP contours
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HEIDENHAIN | MANUALplus 620 | User's Manual | 12/2017
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Fits and internal threads
With the Fit Inside thd. soft key, you can display an input form for
calculating the machining diameter for fits and internal threads.
After entering the required values (nominal diameter and tolerance
class or thread type), you can load the calculated value as the
target point for the contour element.
The machining diameter can only be calculated for
suitable contour elements, e.g. for a linear element in X
direction when calculating the fit for a shaft.
When calculating internal threads of thread type 9, 10 or
11, you can select the nominal diameter for inch threads
in the Nominal dia. from list L list.
Calculating the fit for a hole or shaft:
Press the Fit Inside thd. soft key
Enter the nominal diameter
Enter the fit data in the Fit form
Press the ENT key to calculate the values
Press the Take over soft key
The calculated center of tolerance is entered in
the corresponding field of the open dialog
Calculating the core hole diameter for internal threads:
Press the Inner thread soft key
Enter the nominal diameter
Enter the thread data in the Inside thread
calculator form
Press the ENT key to calculate the values
Press the Take over soft key
The calculated core hole diameter is entered in
the corresponding field of the open dialog
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