Heidenhain TNC 640 (34059x-04) Cycle programming Instrukcja Użytkownika Strona 348

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Cycles: Turning
13.16 SIMPLE RADIAL RECESSING
(Cycle 841, DIN/ISO: G841)
13
348
TNC 640 | User's Manual Cycle Programming | 3/2014
Finishing cycle run
1 The TNC positions the tool at rapid traverse to the first slot side.
2 The TNC finishes the side wall of the slot at the defined feed
rate Q505.
3 The TNC finishes the slot floor at the defined feed rate.
4 The TNC returns the tool at rapid traverse.
5 The TNC positions the tool at rapid traverse to the second slot
side.
6 The TNC finishes the side wall of the slot at the defined feed
rate Q505.
7 The TNC positions the tool back at rapid traverse to the cycle
starting point.
Please note while programming:
Program a positioning block to the starting position
with radius compensation R0 before the cycle call.
The tool position at cycle call defines the size of the
area to be machined (cycle starting point).
From the second infeed, the TNC reduces each
further cutting traverse by 0.1 mm. This reduces
lateral pressure on the tool. If the offset width Q508
was input into the cycle, the TNC reduces the cutting
traverse by this value. After clearance roughing, the
remaining material is removed with a single cut. The
TNC generates an error message if the lateral offset
exceeds 80 % of the effective cutting width (effective
cutting width = cutting width –2*cutting radius).
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