Design of a Car Bumper

CLASS-B SURFACE.

CLASS-A+C SURFACE.

A SCREENSHOT OF A CLOSED SURFACE DERIVED FROM THE CLASS-A, B AND C SURFACES.

ISOMETRIC, SIDE TOP & FRONT VIEW OF THE PRODUCT.

TOOLING AXIS:

• Tooling Axis is very important part while designing the CLASS-B.
• The determination of the direction of Tooling Axis depends on the phases of the surface.
• In this part a line was created in the X-Dirction, it cleared the draft analysis of the part, so the line was used as the Tooling Axis. (shown in the picture below).

• The Bisecting Method of creating the tooling axis is first we create two lines to clear the draft analysis on both components X & Y.
• When we get both the lines we simply need to bisect it.
• The line formed by Bisecting those lines will be our Tooling Axis.

DRAFT ANALYSIS:

• Draft Analysis of a part is to check the phases of the Part are in given Draft angles.
• The tool Future Draft Analysis is used in CATIA V5 to anlyse the draft angles with respect to the created Tooling axis .
• If the colour code is OK as the given range then it is good to go.
• Draft analysis of the Bumpers CLASS-A is represented as in the following picture.

• The green surface quote that the CLASS-A of the product is clered for further surface creation.