Operation Manual

HEIDENHAIN MANUALplus 620 253
4.5 Recessing cycles
Parting
Call the recessing cycles
Select parting
The cycle parts the workpiece. If programmed, a chamfer or rounding
arc is machined on the outside diameter.
Cycle parameters
X, Z Starting point
X1, Z1 Corner point of contour
I Diameter for feed-rate reduction
B Chamfer/Rounding
 B>0: Rounding radius
 B<0: Chamfer width
E Reduced feed rate
D Maximum speed
K Retraction distance after parting: move the tool sideways
away from the workpiece surface before retracting
SD Speed limitation from the diameter I up
U Diameter from which the part catcher is activated
(machine-dependent function)
G47 Safety clearance (see page 128)
G14 Tool change point (see page 128)
T Turret pocket number
ID Tool ID number
S Spindle speed/cutting speed
F Feed per revolution
MT M after T: M function that is executed after the tool call T