HEIDENHAIN TNC 640 (34059x-01) - Manual (Page 425)

HEIDENHAIN TNC 640 425
13.2 Basis F
unctions (Sof
tw
ar
e Option 50)
Programming recessing
Recessing is the machining of recesses in round components, usually
for accommodation of locking rings and seals or as lubricating
grooves. You can program recessing around the circumference or on
the face ends of the turned part. For this you have two separate
contour elements:
„ GRV RADIAL : Recess in circumference of component
„ GRV AXIAL : Recess on face end of component
Input elements in recessing GRV:
Input element Use Input
CENTER Center of recess Required
R Corner radius of both inner
corners Optional
DEPTH / DIAM Recess depth (pay attention
to the algebraic sign!) /
diameter of recess base Required
BREADTH Recess width Required
ANGLE / ANG_WIDTH Edge angle / aperture angle
of both edges Optional
RND / CHF Curve / chamfer corner of
contour near to starting
point Optional
FAR_RND / FAR_CHF Curve / chamfer corner of
contour away from starting
point Optional