HEIDENHAIN MANUALplus 620 101
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: value from standard table 30°)
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 1st cut radius (no input: no cylinder start radius)
E Reduced feed rate for plunging and the first cut (default:
active feed rate)
U Grinding oversize for cylinder
Further forms: see page 46
Undercuts can only be executed in orthogonal, paraxial
contour corners along the longitudinal axis.
Parameters that are not programmed are automatically
calculated from the standard table.
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