HEIDENHAIN TNC 426B (280 472) ISO programming - Manual (Page 223)

207 HEIDENHAIN TNC 410, TNC 426, TNC 430
8.7 SL Cy
cles
Gr
oup II (not in
TNC 41
0)
ú Milling depth Q1 (incremental value): Distance
between workpiece surface and contour floor
ú Finishing allowance for side Q3 (incremental value):
Finishing allowance in the working plane
ú Workpiece surface coordinate Q5 (absolute value):
Absolute coordinate of the workpiece surface
referenced to the workpiece datum
ú Clearance height Q7 (absolute value): Absolute height
at which the tool cannot collide with the workpiece.
Position for tool retraction at the end of the cycle.
ú Plunging depth Q10 (incremental value):
Dimension by which the tool plunges in each infeed
ú Feed rate for plunging Q11: Traversing speed of the
tool in the tool axis
ú Feed rate for milling Q12: Traversing speed of the tool
in the working plane
ú Climb or up-cut ? Up-cut = -1 Q15:
Climb milling: Input value = +1
Conventional up-cut milling Input value = –1
To enable climb milling and up-cut milling alternately
in several infeeds
Input value = 0
Example NC block:
N62 G125 Q1=-20 Q3=+0 Q5=+0 Q7=+50 Q10=+5 Q11=100
Q12=350 Q15=+1*
Kkap8.pm6 29.06.2006, 08:06 207