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17 parting cycle, Parting cycle g859 – HEIDENHAIN MANUALplus 4110 User Manual

Page 353

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HEIDENHAIN MANUALplus 4110

353

6.1

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6.17 Parting Cycle

Parting cycle G859

The cycle G859 parts the workpiece. If programmed, a chamfer or
rounding arc is machined on the outside diameter. At the end of cycle,
the tool retracts and returns to the starting point.

You can define a feed rate reduction after position "I."

Parameters

X parting diameter

Z parting position

I diameter for feed reduction

„

I is defined: The control switches to feed rate "E" after this
position.

„

I is not defined: No feed rate reduction

XE inside diameter

(tube)

E reduced feed rate

—default: Active feed rate

B chamfer/rounding

„

B>0: Radius of rounding

„

B<0: Width of chamfer

Example: G859

%859.nc

[G859]

N1 T30 G95 F0.23 G96 S248 M3

N2 G0 X60 Z-28

N3 G859 X50 Z-30 I10 XE8 E0.11 B1

END