Y-Axis Contours - Fundamentals; Position Of Milling Contours; Cutting Limit - HEIDENHAIN CNC PILOT 640 User Manual

6
6.1 Y-axis contours – fundamentals

Position of milling contours

Define the reference plane and the reference diameter in the
section code.
Specify the depth and position of a milling contour (pocket, island)
in the contour definition:
With Depth P programmed in the previous G308 cycle
Alternatively on figures: Cycle parameter Depth P
The algebraic sign of
P < 0: Pocket
P > 0: Island
Position of milling contour
P
Section
FRONT P < 0
P > 0
REAR SIDE P < 0
P > 0
LATERAL P < 0
P > 0
X: Reference diameter from the section code
Z: Reference plane from the section code
P: Depth from G308 or from the figure definition
The area milling cycles mill the surface specified in the
contour definition.
taken into consideration.

Cutting limit

If parts of the milling contour lie outside of the turning contour,
you must limit the machining area with the area diameter X /
reference diameter X (parameters of the section code or of the
figure definition).
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DIN/ISO Programming for the Y axis | Y-axis contours – fundamentals
P defines the position of the milling contour:
Surface
Z
Z + P
Z
Z – P
X
X + (P * 2)
within this surface are not
Islands
Milling floor
Z + P
Z
Z – P
Z
X + (P * 2)
X
HEIDENHAIN | User's Manual smart.Turn and DIN Programming | 12/2017