Operation Manual

HEIDENHAIN CNC PILOT 640 167
4.4 Turning cycles
Roughing, transverse—expanded
Select cut, longitudinal/transverse
Select cut transverse
Press the Expanded soft key
Taking the oversizes into account, the cycle roughs the area described
by the starting point and the contour starting point Z1/contour
end point X2.
Cycle parameters
X, Z Starting point
X1, Z1 Contour starting point
X2, Z2 Contour end point
P Infeed depth: Maximum infeed depth
A Start angle (range: 0° <= A < 90°)
W End angle (range: 0° <= W < 90°)
R Rounding arc
I, K Oversize X, Z
H Contour smoothing
 0: With every cut
 1: With the last cut
 2: No finishing cut
G47 Safety clearance (siehe Seite 140)
G14 Tool change point (siehe Seite 140)
T Turret pocket number
ID Tool ID number
S Spindle speed/cutting speed
F Feed per revolution
B1, B2 Chamfer/rounding arc (B1 contour start; B2 contour end)
 B>0: Radius of rounding
 B<0: Width of chamfer
BP Break duration: Time span for interruption of the feed. The
chip is broken by the (intermittent) interruption of the feed.
BF Break duration: Time interval until the next break. The chip
is broken by the (intermittent) interruption of the feed.
MT M after T: M function that is executed after the tool call T.
MFS M at beginning: M function that is executed at the
beginning of the machining step.
MFE M at end: M function that is executed at the end of the
machining step.