HEIDENHAIN SW 688945-03 - Manual (Page 149)

HEIDENHAIN CNC PILOT 620/640 149
4.4 T
u
rn
ing cy
cles
Roughing, longitudinal—expanded
Select cut, longitudinal/transverse
Select cut longitudinal
Press the Expanded soft key
Taking the oversizes into account, the cycle roughs the area described
by the starting point and contour starting point X1/contour end
point Z2
.
Cycle parameters
X, Z
Starting point
X1, Z1 Contour starting point
X2, Z2 Contour end point
P Infeed depth: Maximum infeed depth
A Starting 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 (see page 124)
G14 Tool change point (see page 124)
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: Rounding radius
 B<0: Chamfer width
BP Break duration: Time span for interruption of the feed. The
chip is broken by the (intermittent) interruption of the feed.
BF Feed 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