HEIDENHAIN SW 54843x-03 DIN Programming - Manual (Page 123)

HEIDENHAIN MANUALplus 620, CNC PILOT 640 123
2.7 Units—Finishing
Access to the technology database:
 Machining operation: Finishing
 Affected parameters: F, S, E
Parameters on the "Type G" form
FP
Thread pitch
I Undercut diameter (default: value from standard table)
K Undercut length (default: value from standard table)
W Undercut angle (default: 30° from standard table)
R Undercut radius (default: value from standard table)
P1 Undercut oversize
 No input: Machining in one cut
 P1>0: Division into pre-turning and finish-turning; P1 is
the longitudinal oversize; the transverse oversize is
always 0.1 mm
H Type of departure
 0: To the starting point
 1: Plane surface end
Additional parameters for "cylinder first cut"
B
Cylinder 1st cut length (no input: no cylinder start chamfer)
WB 1st cut angle (default: 45°)
RB Positive value: 1st cut radius, negative value: chamfer (no
input: no element)
E Reduced feed rate for plunging and the first cut (default:
active feed rate)
U Grinding oversize for cylinder
Further forms: see page 60
 Undercuts can only be executed in orthogonal, paraxial
contour corners along the longitudinal axis.
 Parameters that are not programmed are automatically
calculated by the Steuerung from the standard table.