HEIDENHAIN SW 68894x-02 - Manual (Page 198)

198 Teach-in mode
4.5
Recessing
cy
cles
4.5 Recessing cycles
Cutting and infeed directions for recessing
cycles
The CNC PILOT automatically determines the cutting and infeed
directions from the cycle parameters. The decisive ones are:
 Basic mode: The parameters for starting point X, Z (Manual mode:
current tool position) and contour starting point X1 / contour end
point Z2
 Expanded mode: The parameters for contour starting point X1, Z1
and contour end point X2, Z2
 ICP cycles: The parameters for starting point X, Z (Manual mode:
current tool position) and starting point of the ICP contour
The recessing cycle group comprises recessing, recess
turning, undercut and parting cycles. Simple contours are
machined in basic mode, complex contours in expanded
mode. ICP recessing cycles machine contours defined
with ICP (see "ICP contours" on page 360).
 Proportioning of cuts: The CNC PILOT calculates a
constant recessing width that is <=infeed depth P.
 Oversizes are considered in "expanded" mode
 Cutter radius compensation is conducted (exception:
Undercut type K).
Recessing cycles Symbol
Recessing radial/axial
Recessing and finishing cycles for
simple contours
ICP recessing, radial/axial
Recessing and finishing cycles for
any contour
Recess turning, radial/axial
Recess-turning and finishing cycles
for simple contours and any type of
contour
Undercut H
Undercut type H
Undercut K
Undercut type K
Undercut U
Undercut type U
Parting
Cycle for parting the workpiece