Week 8 - Challenge 4 - Bumper

Create the Bumper Plastic component through the given Class-A surface. To begin with, the tooling axis for the given Class-A Surface should be created meeting the requirements of the draft angle and at the end perform the Draft analysis on the model. 

Take the Thickness of the component to be 3 mm

AIM

to make a model from the provided class-A surface.

INTRODUCTION

CLASS-A SURFACE

 a surface made by the designer which is given as an input to the plastic modeler to work on. It is aesthetic surface
and the outer most surface.

CLASS-B SURFACE

a surface below a certain thickness from the class-A surface is class-B surface. This is the surface that contains
engineering aspects of a model.

CLASS-C SURFACE

 a surface that joins class-A and class-B surfaces is class-C surface.

Tooling axis 

• Extract the base and create the point at the center .
• from that point creat line which is tooling axis.

 

Draft Analysis

• Draft analysis is a most importent thing for a part body design.This is done to check if all the areas of the body are satisfying the draft angle which is 3 degrees.
• Draft angles are a required feature of injection-molded custom parts. A functional part for injection molding has to have draft angles that face both the cavity and core sides. This will reduce the risk of damage to the parts and ensure that they can be ejected from the machine.

CLASS A SURFCE

SOLID BODY

CREATION OF CLOSED BODY 

All the surfaces (A,B,C) are joined together to form a closed body.

Boundary is selected and the body is picked. Since an error popped up it can be understood that all surfaces are joined with each other to form a proper closed surface body.

ISOMETRIC VIEWS

TREE STRUCTURE

Conclusion

I have successfully created the class-B and Class-C surfaces of Bumper using the given Class-A surface along with the tooling axis in the CATIA surface workbench.