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1 7 cont our -based t u rn ing cy cles – HEIDENHAIN SW 548328-05 DIN Programming User Manual

Page 269

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HEIDENHAIN MANUALplus 620, CNC PILOT 620/640

269

4.1

7

Cont

our

-based t

u

rn

ing cy

cles

Cycle run
1

Calculates the areas to be machined and the cutting

segmentation.

2

Approaches workpiece for first pass from starting point, taking

the safety clearance into account (first in X direction, then in Z).

3

Move at feed rate to target point X

4

Depending on H:

H=0: Machines the contour outline

H=1 or 2: Retracts at 45°

5

Returns at rapid traverse and approaches for next pass.

6

Repeats 3 to 5 until target point Z has been reached.

7

If required, repeats 2 to 6 until all areas have been machined.

8

If H=1: Smoothes the contour

9

Retracts as programmed in Q.