HEIDENHAIN SW 548328-05 DIN Programming - Manual (Page 69)

HEIDENHAIN MANUALplus 620, CNC PILOT 620/640
69
2.2 Units—Roughing
"Longitudinal roughing with direct contour
input" unit
The unit machines the contour defined by the parameters. In EC you
define whether you want to machine a normal or a plunging contour.
Unit name: G810_G80 / Cycle: G810 (see page 264)
Access to the technology database:
 Machining operation: Roughing
 Affected parameters: F, S, E, P
Contour form
EC
Type of contour
 0: Normal contour
 1: Plunging contour
X1, Z1 Contour starting point
X2, Z2 Contour end point
RC Rounding: Radius of contour corner
AC Start angle: Angle of the first contour element
(range: 0° < 90°)
WC End angle: Angle of the last contour element
(range: 0° < 90°)
BS –Chamfer/+radius at start:
 BS>0: Radius of rounding arc
 BS<0: Section length of chamfer
BE –Chamfer/+radius at end
 BE>0: Radius of rounding arc
 BS<0: Section length of chamfer
BP Break duration: Time span for interruption of the feed for
chip breaking.
BF Feed duration: Time interval until the next break. The
interruption of the feed rate breaks the chip.
Cycle form
P
Maximum infeed
I, K Oversize in X, Z direction (I: diameter value)
E Plunging behavior
 E>0: Plunging feed rate for declining contour elements.
Descending contour elements are machined.
 No input: The plunging feed rate is reduced during
machining of declining contour elements by up to 50%.
Descending contour elements are machined.
H Contour smoothing
 0: With each cut along the contour (within the infeed
range)
 1: Contour smoothing with the last cut (entire contour);
retracts at 45%
 2: No smoothing; retracts at 45°
Further forms:
see page 58