7 sl cy cles gr oup ii – HEIDENHAIN iTNC 530 (340 420) ISO programming User Manual
Page 321
HEIDENHAIN iTNC 530
321
8.7 SL Cy
cles Gr
oup II
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Milling depth
Q1 (incremental value): Distance
between the cylindrical surface and the floor of the
contour.
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Finishing allowance for side
Q3 (incremental
value): Finishing allowance in the plane of the unrolled
cylindrical surface. This allowance is effective in the
direction of the radius compensation.
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Set-up clearance
Q6 (incremental value): Distance
between the tool tip and the cylinder surface.
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Plunging depth
Q10 (incremental value): Dimension
by which the tool plunges in each infeed.
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Feed rate for plunging
Q11: Traversing speed of the
tool in the tool axis.
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Feed rate for milling
Q12: Traversing speed of the
tool in the working plane.
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Cylinder radius
Q16: Radius of the cylinder on which
the contour is to be machined.
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Dimension type ? ang./lin.
Q17: The dimensions for
the rotary axis of the subprogram are given either in
degrees (0) or in mm/inches (1).
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Slot width
Q20: Width of the slot to be machined.
Example: NC block
N63 G128 CYLINDER SURFACE
Q1=-8
;MILLING DEPTH
Q3=+0
;ALLOWANCE FOR SIDE
Q6=+0
;SET-UP CLEARANCE
Q10=+3
;PLUNGING DEPTH
Q11=100
;FEED RATE FOR PLUNGING
Q12=350
;FEED RATE FOR MILLING
Q16=25
;RADIUS
Q17=0
;DIMENSION TYPE
Q20=12
;SLOT WIDTH