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5 recessing cy cles – HEIDENHAIN SW 68894x-02 User Manual

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HEIDENHAIN CNC PILOT 640

217

4.5

Recessing

cy

cles

Type of machining for technology database access: contour

recessing

Cycle run

1

Calculate the recess positions and the proportioning of cuts

2

Approach the workpiece for next recess from starting point or from

last recess on paraxial path

3

Machine along the defined contour

4

Return and approach for next pass

5

Repeat 3 to 4 until the complete recess has been machined

6

Repeat 2 to 5 until all recesses have been machined

7

Return to starting point on paraxial path

8

Move to the tool change point according to the G14 setting

MFS

M at beginning: M function that is executed at the

beginning of the machining step

MFE

M at end: M function that is executed at the end of the

machining step

WP

Displays which workpiece spindle is used to process the

cycle (machine-dependent)

Main drive

Opposing spindle for rear-face machining