Fixed Cycles: Contour Pocket
7.6 ROUGHING (Cycle 22, DIN/ISO: G122)
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HEIDENHAIN | TNC 320 | User’s manual for cycle programming | 9/2016
Cycle parameters
Q10 Plunging depth? (incremental): Infeed per cut.
Input range -99999.9999 to 99999.9999
Q11 Feed rate for plunging?: Traversing speed
of the tool in the spindle axis. Input range 0 to
99999.9999, alternatively FAUTO, FU, FZ
Q12 Feed rate for roughing?: Traversing speed
of the tool in the working plane. Input range 0 to
99999.9999, alternatively FAUTO, FU, FZ
Q18 Coarse roughing tool? or QS18: Number or
name of the tool with which the TNC has already
coarse-roughed the contour. You are able to apply
the coarse roughing tool via soft key directly from
the tool table. In addition, the tool name can be
entered via the soft key TOOL NAME. The TNC
automatically inserts the closing quotation mark
when you exit the input field. If there was no coarse
roughing, enter "0"; if you enter a number or a
name, the TNC will only rough-out the portion that
could not be machined with the coarse roughing
tool. If the portion that is to be roughed cannot
be approached from the side, the TNC will mill in
a reciprocating plunge-cut; for this purpose you
must enter the tool length LCUTS in the tool table
TOOL.T and define the maximum plunging ANGLE
of the tool. The TNC will otherwise generate an
error message. Input range 0 to 99999 if a number
is entered; maximum 16 characters if a name is
entered.
Q19 Feed rate for reciprocation?: Traversing speed
of the tool in mm/min during reciprocating plunge-
cut. Input range 0 to 99999.9999, alternatively
FAUTO, FU, FZ
Q208 Feed rate for retraction?: Traversing speed
of the tool in mm/min when retracting after the
machining operation. If you enter Q208 = 0, the
TNC retracts the tool at the feed rate Q12. Input
range 0 to 99999.9999, alternatively FMAX,FAUTO
NC blocks
59 CYCL DEF 22 ROUGH-OUT
Q10=+5 ;PLUNGING DEPTH
Q11=100 ;FEED RATE FOR
PLNGNG
Q12=750 ;FEED RATE F.
ROUGHNG
Q18=1 ;COARSE ROUGHING
TOOL
Q19=150 ;FEED RATE FOR RECIP.
Q208=9999;RETRACTION FEED
RATE
Q401=80 ;FEED RATE FACTOR
Q404=0 ;FINE ROUGH
STRATEGY
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