||This task shows you how to insert a
isoparametric machining operation into the program.
Isoparametric machining is an operation which allows you to select strips of
faces and machine along their isoparametrics.
To create the operation you define:
geometry of the part to machine
parameters of the machining strategy
tool to use ;end mill,
, conical mill
be used for this operation,
- the feedrates and spindle speeds
- the macros .
Only the geometry is obligatory, all of the other requirements have a
You can modify the parameters of two or more Isoparametric machining
operations in one shot by means of the Selected Objects > Definition...
See Editing Parameters of Several
Isoparametric machining Operations.
- make the Manufacturing Program current in the specification
tree if you want to define an operation and
the part/area to machine at the same time,
- or select a machining feature from the
list if you have already defined the area to machine and
now you want to define the operation to apply to it.
Below we are going to see how to do the first of these.
Open file Basic2.CATPart then select
Machining > Surface Machining in the Start menu.
Click Isoparametric Machining
An Isoparametric Machining entity and a default tool are added
to the program.
The dialog box opens at the geometry tab page
This page includes a sensitive icon to help you specify the geometry to be
- The area that represents the part surface is colored red
indicating that the geometry is
equired for defining the area to machine.
- The four points on the area to machine are also obligatory.
They are required in order to define the direction of the
isoparameters (from 1 to 2).
- All of the other geometry parameters are optional.
- The tool path will always start on point 1 and finish on point
This means that, if your parameters are set in such a way that,
under normal circumstances,
the tool path would end on point 3, the tool path will be computed
in such a way as to ensure
that it finishes on point 4.
In order to do this the last five passes may be closer together than
the others (by 20%).
Click the red part surface in the icon and then select
these faces in the viewer.
The faces must be connected to each other.
Click a red point in the icon and select the four
corner points of the part surface.
The part surface and corner points of the icon are now colored green
that this geometry is now defined.
Click Tool Path Replay
A progress indicator is displayed.
You can cancel the tool path computation at any moment before 100%