Cycle Parameters - HEIDENHAIN TNC 620 User Manual

10
Fixed Cycles: Multipass Milling
10.4 FACE MILLING (Cycle 232, DIN/ISO: G232, software option 19)

Cycle parameters

Machining strategy (0/1/2) Q389: Determine how
the TNC should machine the surface:
0: Meander machining, stepover at the positioning
feed rate outside the surface being machined
1: Meander machining, stepover at the feed rate for
milling at the edge of the surface being machined
2: Line-by-line machining, retraction and stepover at
the positioning feed rate
Starting point in 1st axis Q225 (absolute): Starting
point coordinate of the surface to be machined in
the reference axis of the working plane. Input range
-99999.9999 to 99999.9999
Starting point in 2nd axis Q226 (absolute): Starting
point coordinate of the surface to be machined in
the minor axis of the working plane. Input range
-99999.9999 to 99999.9999
Starting point in 3rd axis Q227 (absolute):
Coordinate of the workpiece surface used to
calculate the infeeds. Input range -99999.9999 to
99999.9999
End point in 3rd axis Q386 (absolute): Coordinate
in the spindle axis to which the surface is to be face
milled. Input range -99999.9999 to 99999.9999
1st side length Q218 (incremental value): Length of
the surface to be machined in the reference axis of
the working plane. Use the algebraic sign to specify
the direction of the first milling path in reference
to the starting point in the 1st axis. Input range
-99999.9999 to 99999.9999
2nd side length Q219 (incremental value): Length
of the surface to be machined in the minor axis of
the working plane. Use the algebraic sign to specify
the direction of the first stepover in reference to
the starting point in the 2nd axis. Input range
-99999.9999 to 99999.9999
Maximum plunging depth Q202 (incremental
value):
each time. The TNC calculates the actual plunging
depth from the difference between the end point
and starting point of the tool axis (taking the
finishing allowance into account), so that uniform
plunging depths are used each time. Input range 0
to 99999.9999
Allowance for floor Q369 (incremental):
Distance used for the last infeed. Input range 0 to
99999.9999
240
Maximum
amount that the tool is advanced
TNC 620 | User's Manual Cycle Programming | 3/2014