Teach-in | Thread and undercut cycles
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HEIDENHAIN | MANUALplus 620 | User's Manual | 12/2017
Undercut position
The control determines the position of an undercut from the
parameters for Starting point X, Z (in Machine operating mode:
current tool position) and Start point cylinder X1/End point
transv. Z2.
An undercut can only be machined in a right-angled
paraxial contour corner in the linear axis.
Handwheel superimposition
If your machine features handwheel superimposition, you can
overlap axis movements during thread cutting in a limited area:
X direction: Maximum programmed thread depth depending on
the current cutting depth
Z direction: +/- a fourth of the thread pitch
Refer to your machine manual.
This function must be set up by your machine
manufacturer.
Remember that position changes resulting from
handwheel superimposition are no longer effective after
the cycle end or the Last cut function.
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