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This task shows you how to create
a part operation in the
manufacturing process. |
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When you open a Machining workbench on a CATPart
or CATProduct document, the manufacturing document is initialized with a
part operation. |
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1. |
Select
Part Operation
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A new part operation is initialized in the manufacturing process and a
Part
Operation entity is added to the tree.
To access the parameters of the part operation, double-click the Part
Operation entity in the tree or use the contextual menu. The Part Operation
dialog box appears.
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Name and Comment
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2. |
If needed, enter a new part operation name and assign comments
to the part operation. |
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Machine
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3. |
Click Machine
to assign a machine tool to the part operation.
Please refer to Machine Editor for more information. |
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Reference Machining Axis System
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4. |
Click Reference Machining Axis System
to assign a reference machining axis system to the part operation. The
Machining
Axis System dialog box appears.This is similar to the procedure described
in Insert a Machining Axis Change.
Output coordinates will be expressed in the reference machining axis
system. If a local machining axis system is inserted in the program, coordinates
will be expressed in the local axis system.
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Product or Part
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5. |
Click Product or Part
to associate an existing product (CATProduct) or part (CATPart) to the part
operation. This procedure is described in Set
Up and Part Positioning.Note: In a Manufacturing Hub context,
Product Instance Selection
replaces Product or Part
in the Part Operation editor.
Note: When you remove the Product or the Part
to replace it, a warning message is displayed if points has been created
by you in the machining program (for example: in the roughing
operation to define the order of the pocket, or in the tube machining to
delimit the curve guide, or in the multi-point probing operation to
define the point to probe, ....). These choices available:
-to delete these points. In this case, the
operations associated to these points will be incomplete and you
must select again new points
-to keep these points, because the new product/part
of the part operation is identical.
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Geometry tab
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6. |
Select the Geometry tab to associate
the following geometry to the part operation:
- Design part: Just click Design Part
then select the desired geometry. This is useful if you want to do material
removal simulations later.
- Stock: Just click Stock
then select the desired geometry. This is useful for certain surface
machining operations and also for material removal simulations.
- Fixtures: Just click Fixtures
then select the desired geometry. This is useful if you want to do material
removal simulations later.
- Safety plane: Just click Safety Plane
then select the desired plane that will be used as a global safety plane
for the part operation.
- Traverse box planes: Just click Traverse
Box Planes
then select 5 planes that define a global traverse box for the part
operation.
- Transition planes: Just click Transition
Planes
then select the desired planes that will be used as a global transition
planes for the part operation.
- Rotary planes: Just click Rotary Planes
then select the desired planes that will be used as a global rotary
planes for the part operation.
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The generation of transition
paths in the program takes into account:
- Traverse box planes and Transition planes to create linear tool
path motions
- Rotary planes to create machine rotations:
- between machining operations
- between tool change and machining operation.
The Safety plane is not taken into account for the generation of transition
paths.
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When the geometry is selected,
the identifiers are displayed in the corresponding fields and tool tips
(see example below).

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Position tab
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7. |
Select the Position
tab to specify the following reference positions on the part operation:

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- Tool change point
For machines created using the NC Machine Tool Builder product, the
tool change point is read from the machine and cannot be modified in
the Part Operation.
For Multi-slide lathe machines, the tool change point is read from the
machine and cannot be modified in the Part Operation.
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- Table center setup
- Home point
You can select the check box to use the Home point defined on the machine.
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Simulation tab
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8. |
Select the Simulation tab to specify the stock
tessellation tolerance. In previous releases, this tolerance was fixed at
0.2mm.

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Option tab
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9. |
Select the Option tab to specify the
following options:

- Intermediate stock for milling and turning operations.
If this check box is selected, automatic computation of the intermediate
stock is enabled. The computed stock is taken into account for tool
path computation.
A clearance can be assigned to the stock.
- Automatic stock selection for turning operations.
This option enables automatically updating the input stock for operations
in a manufacturing program for turning (that is, turning operations
and axial operations along the spindle axis).
A lathe machine must be selected in this case.
- Use Spindle Axis System according to the spindle involved in
the machining operation.
A Multi-slide lathe machine or a Mill-Turn machine must be selected.
If this check box is selected, tool tip points are computed based on
the spindle that is set on the machining operation.
If this check box is not selected, the main spindle axis is used. This
is determined by the default reference machining axis system set on
the Part Operation.
- Tool path
points based on the turret involved in the Manufacturing Program
A Multi-slide lathe machine or a Mill-Turn machine must be selected.
If this check box is selected, the computed tool path points are based
on the turret axis system for turning operations.
If this check box is not selected, the computed tool path points are
based on the Part Operation axis system in the spindle plane.
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Collision Checking tab
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10. |
Select the Collision Checking tab to specify
whether or not you want to have quick feedback about collisions during the
tool path replay.
The options on this tab are available for Milling operations only.

- Select the Activate Collision Checking check box if you
want to have quick feedback about collisions during the tool path replay.
In this case the other options become available for selection.
- Select the On design part check box to detect collisions
between the tool/tool holder and the design part specified on the Part
Operation's Geometry tab.
- Select the On fixtures check box to detect collisions
between the tool/tool holder and the fixtures specified on the Part
Operation's Geometry tab.
- If needed, you can set offsets on the tool or tool assembly, which
are used as "safety" distances.
For more information, see:
Note that barrel tools, boring bars, and user-representation tools are
not supported.
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11. |
Click OK to create the part operation. The tree is updated
with the new entity. |

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