Heidenhain MANUALplus 4110 User Manual Page 378

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378 6 DIN Programming
6.21 Lateral Surface Machining
Q cycle type (default: 0): Depending on "U," the following applies:
Contour milling (U=0):
– Q=0: Milling center on the contour
– Q=1—closed contour: Inside milling
– Q=1—open contour: Left in machining direction
– Q=2—closed contour: Outside milling
– Q=2—open contour: Right in machining direction
– Q=3—open contour: Milling location depends on "H" and the
direction of tool rotation—see graphic support window
Pocket milling (U>0):
– Q=0: From the inside toward the outside
Q=1: From the outside toward the inside
O roughing/finishing—default: 0
O=0: Roughing
O=1: Finishing—first, the edge of the pocket is machined; then
the pocket floor is machined.
Notes:
Milling depth: The cycle calculates the depth from "Z" and "ZE," taking
the oversizes into account.
Milling cutter radius compensation: effective (except for contour
milling with Q=0).
Approach and departure: For closed contours, the point of the
surface normal from the tool position to the first contour element is
the point of approach and departure. If no surface normal intersects
the tool position, the starting point of the first element is the point of
approach and departure. For contour milling and finishing (pocket
milling), define with "R" whether the tool is to approach directly or in
an arc.
Oversizes are taken into account if I, K are not programmed:
G57: Oversize in X, Z direction
G58: The oversize expands or contracts the contour to be milled,
depending on your definition of the "cycle type." The "outside milling"
cycle type expands the contour. For open contours, the contour is
shifted to the left or right, depending on the cycle type.
With inside milling and closed contour: The contour is contracted
With outside milling and closed contour: The contour is expanded
With open contour and Q=1: Left in machining direction
With open contour and Q=2: Right in machining direction
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