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8 sl c y cles – HEIDENHAIN iTNC 530 (340 49x-04) User Manual

Page 457

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HEIDENHAIN iTNC 530

457

8.8 SL c

y

cles

Plunging depth

Q10 (incremental value): Dimension

by which the tool plunges in each infeed.

Feed rate for plunging

Q11: Traversing speed of the

tool in mm/min during penetration.

Feed rate for roughing

Q12: Traversing speed for

milling in mm/min.

Coarse roughing tool

Q18 or QS18: Number or name

of the tool with which the TNC has already coarse-
roughed the contour. Switch to name input: Press the
TOOL NAME soft key. 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 (see “Tool Data,” page 198), and
define the maximum plunging ANGLE of the tool. The
TNC will otherwise generate an error message.

Reciprocation feed rate

Q19: Traversing speed of

the tool in mm/min during reciprocating plunge-cut.

Retraction feed rate

Q208: Traversing speed of the

tool in mm/min when retracting after machining. If
you enter Q208 = 0, the TNC retracts the tool at the
feed rate in Q12.

Example: NC blocks

59 CYCL DEF 22 ROUGH-OUT

Q10=+5

;PLUNGING DEPTH

Q11=100

;FEED RATE FOR PLUNGING

Q12=750

;FEED RATE FOR ROUGHING

Q18=1

;COARSE ROUGHING TOOL

Q19=150

;RECIPROCATION FEED RATE

Q208=99999

;RETRACTION FEED RATE

Q401=80

;FEED RATE REDUCTION

Q404=0

;FINE ROUGH STRATEGY