Week 8 - Challenge 1 - Base Bracket Design

Tooling Axis:

Tooling Axis is the direction in which the Mold opens and closes. Part Drafts are given along this axis.

MATERIEAL SELECTION :

Material:ABS Plastic(Acrylonitrile Butadiene Styrene)

    Key Properties of ABS

Draft Analysis:

Draft Analysis is a tool in CATIA which identifies the zones which deviates from the specified values of angles along a defined draft direction using colour codes.

It highlights the regions of draft using colours. Draft analysis is the first step performed after receiving the Class A of the component.

Class- A Surface:

*In automotive design, a class A surface is any of a set of freeform surfaces of high efficiency and quality. It is the visible aesthetic surface of any automotive component

*the class A as the input of the plastic desiner .

Class- B Surface:

*Class B surfaces are Engineering Surfaces which are invisible to the eyes or often on the back side of the Class A surfaces. It is mainly the thickness of the component or Class A.

These surfaces need to be designed as per the Class A surface

* These surfaces include the main engineering features such as Screw bosses, Ribs, Snaps, Stiffeners and fixations. B surfaces also do not contain any aesthetic styling content and textures since it is not visible to eyes.

Class- C Surface:

*Class C surfaces are connectors between Class A and B surfaces. This surface connects both A and B surfaces along the Tooling Axis.

It contains the draft as per the design. Its is basically the thickened surface between both A and B surface.

Draft analysis of solid component :

* draft analysis has done in the closed body of the base bracket the result as shown.

Conclusion:

The Design of Plastic Component - Base Bracket from Class A is completed using concepts of Draft angle, Draft Analysis, Tooling Axis, Class B and Class C creation and converting Closed surface to a solid part.