This document discusses CATIA V5 assembly modeling. It describes assembly modeling as creating designs from two or more components assembled together. There are two main approaches: bottom-up assembly, where components are created separately and then assembled, and top-down assembly, where components are created directly within the assembly. The document outlines how to create new products, insert existing components, move components, and apply constraints to restrict component movement in CATIA V5 assembly design.

1. CATIA V5
Assembly

2. ASSEMBLY MODELING
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 Process of creating designs that consist of two or more components
assembled together at their respective work position.
 Components brought together and assembled in Assembly Design.
 Assembly Design workbench allow you to apply suitable parametric
assembly constraints to the components and restrict the degree of
freedom.

3. Bottom-up Assembly
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 Most preferred approach for creating assembly models.
 Components created in Part Design workbench and inserted in
Assembly Design workbench.
 Advantages for this approach:
• Users can focus on attention of the detail's components
• Easier to maintain a relationship between the feature of the
components
• Suitable for large assembles especially those having intricate
individual components.

4. Top-down Assembly
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 Components created inside Assembly Design workbench.
 Different approach as Bottom-up approach. Require users to create all
components in product file.
 Advantages for this approach:
• No need to create separate files of the components.
• Gives user using the geometry of one component to define the
geometry of other.
• Construction and assembly take place simultaneously. User can view
development of product in real time.
• Highly preferred for conceptual design or tool design.

5. Creating New Products
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Two ways of creating new
products:
A. Start > Mechanical Design >
Assembly Design
B. File > New > Dialog box >
Product

6. Insert Existing Components
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 Insert Tab > Existing component;
or Right click product tree >
Components > Existing
component; or Drag part tree onto
the product tree

7. Insert Existing Component
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 Select Product1 from
Specification Tree > File
selection dialog box > browse
location part file saved > double
click to insert the components.

8. Move Components
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 Manipulation tool used to move or rotate the
component. Choose Manipulation button from
move toolbar. A Manipulation Parameter
dialog will be displayed.
 Another way of moving component by moving
compass:
 Drag compass from top-right corner to the
component you wish to move, compass
will turn into green colour.
 Drag any green lines of compass to move
the components.

9. Constraints
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 The constraints used to fix the degree of freedom of the components.
 It helps to precisely place and position the components with respect to
other components and surroundings in the assembly.
 All degrees of freedom of all components are restricted, it is called fully
constrained assembly. Else, it called partially constrained assembly.

10. Constraints
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A. Coincidence Constraint – Coincide the central axis of cylindrical
features
B. Contact Constraint – Make a surface-to-surface contact between
two selected elements from two different components.
C. Offset Constraint – Place selected elements at an offset distance
from each other.
D. Angle Constraint – Position two geometric elements at a
particular angle with respect to each other.
E. Fix Component – Fix the location of the selected component in
the 3D space.

11. Reuse Pattern
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12. Drafting Steps
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 Open the model for drafting is to be performed.
 Switch to drafting workbench
 New wizard opens up. Choose appropriate option.

13. Drafting – Title Block
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 Title Block can be added using
the button Frame and Title
Block.
 New wizard opens up. Choose
appropriate option.
 Edit the information required.

14. THANK YOU