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Cycle run – HEIDENHAIN TNC 620 (340 56x-02) Cycle programming User Manual

Page 229

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HEIDENHAIN TNC 620

229

1

0

.3 RULED SURF

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IN/ISO: G231, A

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Option)

10.3 RULED SURFACE (Cycle 231,

DIN/ISO: G231, Advanced
Programming Features
Software Option)

Cycle run

1

From the current position, the TNC positions the tool in a linear 3-D
movement to the starting point

1

2

The tool subsequently advances to the stopping point

2

at the feed

rate for milling.

3

From this point, the tool moves at rapid traverse FMAX by the tool
diameter in the positive tool axis direction, and then back to
starting point

1

.

4

At the starting point

1

the TNC moves the tool back to the last

traversed Z value.

5

Then the TNC moves the tool in all three axes from point

1

in the

direction of point

4

to the next line.

6

From this point, the tool moves to the stopping point on this pass.
The TNC calculates the end point from point

2

and a movement in

the direction of point

3

.

7

Multipass milling is repeated until the programmed surface has
been completed.

8

At the end of the cycle, the tool is positioned above the highest
programmed point in the spindle axis, offset by the tool diameter.

X

Y

Z

1

2

3

4

X

Y

Z

1

2

3

4