2.1 Fundamentos

Solid Modeling

CATIA is used to create three-dimensional (3D) solid models. The software understands that the model is filled with material. With a solid model, you can perform the following:

• Obtain the mass properties of a part.
• Determine if components in an assembly interfere with one another.
• Create cross-sections of an assembly or display part cross-sections in a drawing. Instead of manually drawing the views on the drawing, you can reference the part model to generate views and show the dimensions from the 3D geometry, as shown in Figure 2-1.

This process also applies to assemblies, as shown in Figure 2-2. You can locate existing part and assembly models relative to one another.

Feature-Based

The solid model evolves as features are created, one by one, until the geometry is complete. The part model (shown in Figure 2-3) is constructed by consecutively creating the following features:

1. Create a sketch.
2. Create a Pad feature.
3. Draft several walls of the part using a Draft feature.
4. Remove sharp edges of the geometry by creating a Fillet feature.
5. Create a Shell feature to hollow out the part.