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7 units—finishing – HEIDENHAIN SW 54843x-03 DIN Programming User Manual

Page 120

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120

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2.7 Units—Finishing

"Longitudinal finishing with direct contour
input" unit

The unit finishes the contour defined by the parameters in one pass.
In EC you define whether you want to machine a normal or a plunging
contour.

Unit name: G890_G80_L / Cycle: G890 (see page 290)

Access to the technology database:

Machining operation: Finishing

Affected parameters: F, S, E

Contour form
EC

Type of contour

0: Normal contour

1: Plunging contour

X1, Z1

Contour starting point

X2, Z2

Contour end point

RC

Rounding: Radius of contour corner

AC

Start angle: Angle of the first contour element
(range: 0° < AC < 90°)

WC

End angle: Angle of the last contour element
(range: 0° < WC < 90°)

BS

Chamfer/radius at start

BS>0: Radius of rounding arc

BS<0: Section length of chamfer

BE

Chamfer/radius at end

BE>0: Radius of rounding arc

BE<0: Section length of chamfer

Cycle form
E

Plunging behavior

E>0: Plunging feed rate for declining contour elements.
Descending contour elements are machined.

No input: The plunging feed rate is reduced during
machining of declining contour elements by up to 50 %.
Descending contour elements are machined.

B

Switch on TRC (type of tool radius compensation)

0: Automatic

1: Tool to the left (G41)

2: Tool to the right (G42)

3: Automatic, without tool angle compensation

4: Tool to the left (G41), without tool angle compensation

5: Tool to the right (G42), without tool angle
compensation

DXX

Additive correction numbers 1 – 16

G58

Contour-parallel oversize (radius)

Further forms: see page 60

With the address Dxx you activate an additive
compensation for the entire cycle run. The additive
compensation is switched off again at the end of the cycle.
You edit additive compensation values in the Program Run
mode of operation.

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