Heidenhain TNC 620 (34056x-04) Cycle programming Manual do Utilizador Página 171

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SL Cycles 7.1
7
TNC 620 | User's Manual Cycle Programming | 5/2013
171
Characteristics of the fixed cycles
The TNC automatically positions the tool to the set-up clearance
before a cycle.
Each level of infeed depth is milled without interruptions since the
cutter traverses around islands instead of over them.
The radius of "inside corners" can be programmed—the tool
keeps moving to prevent surface blemishes at inside corners (this
applies to the outermost pass in the Rough-out and Side Finishing
cycles).
The contour is approached in a tangential arc for side finishing.
For floor finishing, the tool again approaches the workpiece on a
tangential arc (for spindle axis Z, for example, the arc may be in
the Z/X plane).
The contour is machined throughout in either climb or up-cut
milling.
The machining data (such as milling depth, finishing allowance and
set-up clearance) are entered as CONTOUR DATA in Cycle 20.
Overview
Cycle Soft key Page
14 CONTOUR GEOMETRY (essential) 172
20 CONTOUR DATA (essential) 177
21 PILOT DRILLING (optional) 179
22 ROUGH-OUT (essential) 181
23 FLOOR FINISHING (optional) 184
24 SIDE FINISHING (optional) 185
Enhanced cycles:
Cycle Soft key Page
25 CONTOUR TRAIN 187
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