Using A Facing Slide - HEIDENHAIN TNC 640 User Manual

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Using a facing slide

Refer to your machine manual.

This feature must be enabled and adapted by the

machine tool builder.

With a facing slide, also called boring head, you can perform almost

all turning operations with fewer different tools. The slide position

of the facing slide in the X direction can be programmed. On the

facing slide you mount, for example, a longitudinal turning tool that

you call with a TOOL CALL block.

Machining also works with a tilted working plane and on

workpieces that are not rotationally symmetric.

Please note while programming

The following constraints apply to the use of a facing slide:

Miscellaneous functions M91 and M92 cannot be used

Retraction with M140 is not possible

TCPM or M128 are not possible

DCM collision monitoring cannot be used

Cycles 800, 801 and 880 cannot be used

If you are using the facing slide in the tilted working plane, please

note the following:

The control calculates the tilted working plane as in milling

mode. The COORD ROT and TABLE ROT functions, as well as

SEQ refer to the XY plane.

HEIDENHAIN recommends using the TURN positioning

behavior. The MOVE positioning behavior is not the best option

in combination with the facing slide.

Turning | Turning program functions (option 50)

HEIDENHAIN | TNC 640 | ISO Programming User's Manual | 10/2017