Slot Definition Catia

Creating Threads on Conic Faces

CATIA Part Design & Sketcher CATIA® V5R14 Basic Shapes, Page 174 ©Wichita State University Pad The pad icon allows you to use a sketch and extrude it in a linear direction producing a solid. I joined for Catia and Revit arch the best thing is they are. ¾ Slot Definition ¾ Stiffener Definition ¾ Solid Combine Definition.

To help you thread conic faces, the following figures illustrate how the different parameters you need to value are defined:

Threads

Note that if the thread diameter value is not equal to the support diameter at the limit plane, the application issues an error message.

Taps

The thread diameter must be greater than the support diameter at the limit plane, otherwise, the application issues an error message.

Using Formulas

The Edit formula... contextual command is available from the different NumericalDefinition fields. It allows you to define formulas for managing the different values you need.

From V5R17 onwards, when accessing the Formula command , three additional parameters related to thread features can now be assigned a value. These new parameters are:

• RotationSide: the possible values are True or False.

• StandardType: you need to enter the standard type you want in the Edit name or value of the current parameter field of the Formulas dialog box. The standard you enter must be available in the CATPart document, otherwise the standard attribute is reset and set to No Standard.

• InternalDiameter: (This parameter is not available when defining a thread or tap feature). In case you are handling a thread:

  • for which a standard is defined, it contains the minor diameter standard value.

  • for which NO STANDARD is set, it is not set as it is not defined

  In case you are handling a tap:

  • for which a standard is defined, it contains the standard nominal diameter.

  • for which NO STANDARD is set, it is not set as it is equal to the diameter support

These parameters are not provided for threads created using application versions before V5R17. However, they become available as soon as you edit and save the part using V5R17.

User Features and Power Copies

User Features and Power Copies do not support standards used in the definition of thread features.

Understanding Boolean Operations in CATIA V5

Boolean operation is an important feature in CATIA V5. Types of Boolean operations include Assemble, Add, Remove, Intersect, Union Trim, and Remove Lump.

Assemble

The Assemble command basically works considering the polarity of the solid bodies. One may be interested to know what actually is the polarity of a body. In simple words, it can be said that whenever a new body is created using material formation like pad, shaft and rib or multi-section solid, then that body can be considered as positive polar body. Pocket, groove, slot and remove multi-section solid is considered as negative polar body.

A part body is created as a rectangular block and Body-1 as a solid cylinder as shown below. Consider this Body-1 as positive polar body as it is created using pad command and intersects with part body. Now if we use Assemble Boolean operation, then this cylinder will join the rectangular part body and will act as a single body.

Now again Body-2 is being created as a rectangular block and is considered as negative polar body because pocket command is used. Whenever Body-2 is assembled with rectangular part body, it will go for material removal in intersected area due to the selection of negative polar body.

Add

Add operation removes only the intersected portion between two bodies so that both parts act as a single body irrespective of the polarity of the bodies. Here, the bodies may be with positive polarity or negative polarity or a combination of both.

Remove

Remove operation removes the selected body first and then is merged with the second body irrespective of the polarity of the bodies. Below is an example on how to create Housing using Add and Remove Boolean operation.

Intersect

To derive a single body from two different bodies, Intersect Boolean operation is used. Basically, the intersected portion is the output which is displayed as a single body. There is no effect of polar bodies here.

In the above example, there are two sketches intersecting each other in the first picture. In the second picture, pad is created on both sides with a certain limit. After using Intersect Boolean operation, the result shows only the common portion which can be seen in third picture.

Union Trim

Unwanted material can be removed from any two bodies by using Union Trim operation which results in a single desired body.

Consider the example below:

In Model Tree, it can be seen that one rectangular body is intersecting with another circular body and the unwanted intersected area needs to be trimmed. After clicking on Union Trim, it gives an option to the user to keep/remove any face. After selecting the shape to be removed, the result can be seen as below:

Remove Lump

Slot Definition Catia Definition

Remove Lump Boolean operation removes the lump inside the body.

During the operation, a tab will give the option to the user to keep/remove any face as required. Using this Boolean operation, a user can remove N number of lump face areas.

Below is an example of creating a lump first by using Remove Boolean operation and then using Remove Lump Boolean operation, it is shown how a lump can be removed.

The image below shows Remove Lump definition tab which allows to choose the particular faces. After selecting the face, result is generated.

Slot Definition Catia Software

For a stable design where design features are interlinked, Boolean operation may be a good operation to go with. After all, design aspect is important as it shows how a designer wants to edit a design in later stages through Boolean operations and allow to modify the particular part where designer wants to modify the part and not the complete body. For product benchmarking where few parameters are changing, changing the particular body can be a timesaver.

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