HEIDENHAIN TNC 426 B User Manual

195HEIDENHAIN TNC 426 B, 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:
51 LBL 1
52 L X+60 Y+50 RR
53 CC X+35 Y+50
54 C X+60 Y+50 DR-
55 LBL 0
Surface B:
56 LBL 2
57 L X+90 Y+50 RR
58 CC X+65 Y+50
59 C X+90 Y+50 DR-
60 LBL 0
CONTOUR DATA (Cycle 20)
Machining data for the subprograms describing the subcontours are
entered in Cycle 20.
Before programming, note the following:
Cycle 20 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 20 are valid for
Cycles 21 to 24.
If you are using the SL cycles in Q parameter programs,
the cycle parameters Q1 to Q19 cannot be used as
program parameters.
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Milling depth Q1 (incremental value): Distance
between workpiece surface and pocket floor
ú
Path overlap factor Q2: Q2 x tool radius = stepover
factor k
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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
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Workpiece surface coordinate Q5 (absolute value):
Absolute coordinate of the workpiece surface
8.5 SL Cycles
X
Y
k
Q9=+1
Q8
A
B
kkap8.pm6 30.06.2006, 07:03195
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HEIDENHAIN TNC 426 B Specifications

General

Brand	HEIDENHAIN
Model	TNC 426 B
Category	Control Systems
Language	English