Draft Analysis on a Fan Cover

AIM :

To create the tooling axis for the given model and perform Draft analysis.

OBJECTIVE :

• To make sure that the model meets the requirements of the draft angle.
• To perform Draft analysis on the given Fan cover model.
• To create the Tooling axis using bisecting method.

DRAFT ANALYSIS :

• The Draft analysis is a process through which a user can verify the draft angles, the change in various angles within the surface and also to locate the parting lines which eases the process of Molding.
• In CATIA, the Draft analysis tool helps the user to quickly obtain the draft angle of various surfaces which indeed eliminates the tedious manual measurements.

• The Draft angle can be positive, negative and zero.

PROCEDURE :

The various steps involved in the creation of tooling axis and Draft analysis are as follows,

• Initially the given Class-A surface was imported and checked for any discrepencies in the boundary.
• Then a point was created using a reference from the given surface followed by the creation of an Axis system.
• Further a dummy tooling axis was created using the created point as reference.
• Now using the intersect command on the XZ plane and the model a boundary was created

• The lines which might cause trouble during the operation were identified and a reference line was created for each of the identified lines.

• Finally a Tooling axis was created from these two reference lines using Bisecting option for the X direction.
• The same procedure was followed inorder to obtain another Tooling axis for the Y direction.
• Thus upon intersection of the axis created for the X and Y axes, the main Tooling axis was created.
• The Main tooling axis and the Class-A surface were published.

• Further the Drafting analysis was performed using the Feature Draf Analysis command.
• Using this command the compass was set on the main tooling axis and the Draft angle was changed to 3 degree.

MODEL RESULTS :

Feature tree

Front view

Top view

Side view

Isometric view

CONCLUSION :

• The creation of Tooling axis and Draft analysis were performed.
• The necessary screenshots and files were attached.