HEIDENHAIN TNC 426B (280 472) ISO programming - Manual (Page 217)

201 HEIDENHAIN TNC 410, TNC 426, TNC 430
Area of intersection
Only the area overlapped by both
A and B is to be machined. (The
areas covered by A or B alone are to be left unmachined.)
■ A and B must be pockets.
■ A must start inside of B .
Surface A:
N510 G98 L1 *
N520 G01 G42 X+60 Y+50 *
N530 I+35 J+50 *
N540 G02 X+60 Y+50 *
N550 G98 L0 *
Surface B:
N560 G98 L2 *
N570 G01 G42 X+90 Y+50 *
N580 I+65 J+50 *
N590 G02 X+90 Y+50 *
N600 G98 L0 *
CONTOUR DATA (Cycle G120)
Machining data for the subprograms describing the subcontours are
entered in Cycle G120.
Before programming, note the following:
Cycle G120 is DEF active which means that it becomes
effective as soon as it is defined in the part program.
The algebraic sign for the depth parameter determines
the working direction.
The machining data entered in Cycle G120 are valid for
Cycles G121 to G124.
If you are using the SL cycles in Q parameter programs,
the cycle parameters Q1 to Q19 cannot be used as
program parameters.
ú Milling depth Q1 (incremental value): Distance
between workpiece surface and pocket floor
ú Path overlap factor Q2: Q2 x tool radius = stepover
factor k
ú Finishing allowance for side Q3 (incremental value):
Finishing allowance in the working plane
ú Finishing allowance for floor Q4 (incremental value):
Finishing allowance in the tool axis
ú Workpiece surface coordinate Q5 (absolute value):
Absolute coordinate of the workpiece surface
8.7 SL Cy
cles
Gr
oup II (not in
TNC 41
0)
A
B
X
Z
Q6
Q7
Q1
Q10
Q5
Kkap8.pm6 29.06.2006, 08:06 201