Heidenhain TNC 620 (34056x-04) Cycle programming Manuale Utente Pagina 181

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ROUGHING (Cycle 22, DIN/ISO: G122, software option 19) 7.6
7
TNC 620 | User's Manual Cycle Programming | 5/2013
181
7.6 ROUGHING (Cycle 22, DIN/ISO: G122,
software option 19)
Cycle run
1 The TNC positions the tool over the cutter infeed point, taking
the allowance for side into account.
2 In the first plunging depth, the tool mills the contour from inside
outward at the milling feed rate.
3 First the island contours (C and D in the figure at right) are
rough-milled until the pocket contour (A, B) is approached.
4 In the next step the TNC moves the tool to the next plunging
depth and repeats the roughing procedure until the program
depth is reached.
5 Finally the TNC retracts the tool to the clearance height.
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