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HEIDENHAIN SW 548328-05 DIN Programming User Manual

Page 513

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HEIDENHAIN MANUALplus 620, CNC PILOT 620/640

513

6.7 Milling cy

cles f

o

r the Y axis

Cycle run

1

Starting position (X, Y, Z, C) is the position before the cycle

begins.

2

Calculates the number of cuts (infeeds to the milling planes,

infeeds in the milling depths) and the plunging positions and

paths for reciprocating or helical plunges.

3

Approaches to safety clearance and, depending on O, feeds to

the first milling depth or approaches helically or on a

reciprocating path.

4

Mills a plane.

5

Retracts by the safety clearance, returns and cuts to the next

milling depth.

6

Repeat steps 4 and 5 until the complete surface is milled.

7

Returns to retraction plane RB.