Fixed Cycles: Pocket Milling / Stud Milling / Slot Milling
5.9 FACE MILLING (Cycle 233, DIN/ISO: G233)
5
166
HEIDENHAIN | TNC 320 | User’s manual for cycle programming | 9/2016
Strategy Q389=4
4 The tool subsequently approaches the starting point of the
milling path at the programmed Feed rate for milling on a
tangential arc.
5 The TNC machines the level surface at the feed rate for
milling from the outside toward the inside with ever-shorter
milling paths. The constant stepover results in the tool being
continuously engaged.
6 The process is repeated until the programmed surface has been
completed. At the end of the last path, the TNC positions the
tool at rapid traverse FMAX back to the starting point 1.
7 If more than one infeed is required, the TNC moves the tool in
the tool axis to the next plunging depth at the positioning feed
rate.
8 The process is repeated until all infeeds have been machined. In
the last infeed, only the finishing allowance entered is milled at
the finishing feed rate.
9
At the end of the cycle, the tool is retracted at FMAX to the 2nd
set-up clearance.
Limits
The limiters enable you to limit the machining of the level surface,
for example, to account for side walls or shoulders during
machining. A side wall that is defined by a limit is machined to the
finished dimension resulting from the starting point or the side
lengths of the level surface. For roughing the TNC includes the
oversize of the side - for finishing the oversize helps to preposition
the tool.
To Next Page
Loading...
