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Programming Example Of Free Contour Programming - Siemens SINUMERIK 840D Operator's Manual

Computerized numerical control system for machine tools.
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6
03.04
J
Position of arc center point in Y direction (abs. or incr.)
Transition to
Transition element to next contour is a chamfer (FS)
following
Transition element to next contour is a radius (R)
element
FS=0 or R=0 means no transition element
FRC
Feedrate for transition element chamfer or radius
CA
Allowance for subsequent grinding
Grinding allowance to right of contour (viewed from starting point)
Grinding allowance to left of contour (viewed from starting point)
Additional
Any additional command in G code format
command
Machine manufacturer

6.5.9 Programming example of free contour programming

Example 1
Workpiece drawing of contour
Element
Softkey
1
2
3
4
5
 Siemens AG, 2004. All rights reserved
SINUMERIK 840D/810D Operator's Guide HMI Embedded (BEM) – 03.04 Edition
The names of the identifiers (X or Y ...) are defined in the machine
data where they can also be changed.
Starting point:
X=5.67 abs., Y=0 abs., machining plane G17
The contour is programmed in a counter-clockwise direction.
X= - 137.257 abs.
43.972
125
Y
X
Parameters
All parameters, α1=180 degrees
X=−43.972 inc, all parameters
X=−137.257 abs
α1=−125 degrees
X=43.972 inc
α1=−55 degrees
X=5.67 abs
CW direction of rotation,
R=72, X=5.67 abs., Y=0 abs.,
Make a dialog selection
6.5 Free contour programming
Starting point
X=5.67 Y=0
°
R72
Observe angles in help screen!
Definition of coordinates in X in "abs"
and in "inc"
Observe angles in help screen!
Definition of coordinates in X in "inc"
Observe angles in help screen!
Program Operating Area
mm
mm
mm
mm/rev
mm
Remarks
6-221
6

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