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4 mac h ining inf o rm ation – HEIDENHAIN SW 548328-05 DIN Programming User Manual

Page 552

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552

TURN PLUS

7.

4 Mac

h

ining inf

o

rm

ation

Machining information

Chucking the workpiece at the spindle:

Ensure that the area,

where the blank part is chucked, is premachined. Otherwise, the

cutting limitation might adversely affect the machining strategies.

Machining of bars:

TURN PLUS does not control the bar loader

and does not move the tailstock and steady rest components. TURN

PLUS does not support workpiece adjustment between collet and

dead center during machining operations.

Transverse machining

Please note that the entries made in the machining sequence

apply to the complete workpiece and thus also to the transverse

machining of shaft ends.

The AWG does not machine inside areas on the rear face. If jaws

are used for clamping the shaft at the spindle, the rear face is not

machined.

Longitudinal machining:

First the front area is machined, then the

rear area.

Collision prevention:

If machining operations are not performed

without collisions

, you can do the following:

Add a retraction of the tailstock, a positioning of the steady rest,

etc. to the program.

Add cutting limits to the program to avoid collisions.

Disable automatic machining in the AWG by assigning the

"Exclusion from machining" attribute

or by defining a specific

machining location in the machining sequence.

Define an oversize=0 for the workpiece blank. As a consequence,

the front area is not machined (e.g. shafts cut to length and

centered shafts).