Siemens Sinumerik 840D sl Programming Manual page 20
Iso milling
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- Function manual (2184 pages) ,
- Programming manual (1334 pages) ,
- Commissioning manual (1102 pages)
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Drive commands
2.1 Interpolation commands
Element
Direction of rotation
End-point position
Distance between start point -
center
Radius of circular arc
Feed
Designation of the plane
With the commands specified below, a tool traverses along the specified circular arc in the
plane X-Y, Z-X or Y-Z, so that the feed specified with "F" is maintained on the circular arc.
● in Plane X-Y:
● in Plane Z-X:
● in the Plane Y-Z:
Before the circle radius programming (with G02, G03), one must first select the desired
interpolation plane with G17, G18 or G19. Circular interpolation is not allowed for the 4th and
5th axes, if these are linear axes.
Plane selection is also used to select the plane in which the tool radius compensation
(G41/G42) is performed. The Plane X-Y (G17) is automatically set after activating the control
system.
G17
G18
G19
The working planes should be specified, in general.
Circles can also be created outside the selected working plane. In this case, the axis
addresses (specification of circle end positions) determine the circular plane.
Circular interpolation is possible in the Xβ, Zβ or Yβ plane while selecting an optional 5th
linear axis, which also contains a 5th axis besides the X-Y, Y-Z and Z-X planes (β=U, V or
W)
● Circular interpolation in the Xβ plane
● Circular interpolation in the Zβ plane
20
G17 G02 (or G03) X... Y... R... (or I... J... ) F... ;
G18 G02 (or G03) Z... X... R... (or K... I... ) F... ;
G19 G02 (or G03) Y... Z... R... (or J... K... ) F... ;
G17 G02 (or G03) X... β... R... (or I... J... ) F... ;
G18 G02 (or G03) Z... β... R... (or K... I... ) F... ;
Command
Description
G02
clockwise
G03
counterclockwise
Two axes from X, Y
End-point position in a workpiece coordinate
or Z
system
Two axes from X, Y
Distance of start point - end point with sign
or Z
Two axes from I, J or
Distance start point - circle center with sign
K
R
Radius of circular arc
F
Speed along the circular arc
X-Y plane
Z-X plane
Y-Z plane
Programming Manual, 06/09, 6FC5398-7BP10-1BA0
ISO Milling
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