Challenge

Week 8 - Challenge 6 - Core & Cavity Design

Week 8 - Challenge 6 - Core & Cavity Design

Switch Bezel Design

Objective

To Create the Switch Bezel Plastic component through the given Class-A surface.the tooling axis for the

given Class-A Surface should be created meeting the requirements of the draft angle and to perform the Draft

analysis on the model.

Aim

Proper Tree Structure.
Geometrical sets with proper name.
All the sketches are to be created under the Geometrical set.
Use the Close Surface feature to make a solid body from the surface.
Publications: Use the publication option and publish the below
- Tooling Axis
- Class A, B, and C surface

Introduction

The control panel bezel is the frame part of the window switch that holds its switch covers and buttons

into place. Moulding is the method used to manufacture the plastic trims of an automotive by most OEM’s,

hence by considering the manufacturing consideration the switch bezel is designed.

Design consideration

Class – A surface should be aesthetically smooth and good.
Class – B surface should have all the supporting features like ribs.
Parting Line should coincide with the B surface since flashing couldn’t affect the aesthetic of Class – A.
Class – C surface should also pass the draft analysis.

CLASS A

Tooling axis

The Tooling Direction is basically the direction that the mold pulls apart. The mold is built in two separate

pieces, basically. You have a Cavity side and you have the Core side. The Core pulls apart from the Cavity and

that's the Dyeline or the Tooling Direction.

Draft analysis

The Draft Analysis command enables you to detect if the part you drafted will be easily removed. This

type of analysis is performed based on color ranges identifying zones on the analyzed element where the

deviation from the draft direction at any point, corresponds to specified values.

TREE STRUCTURE

4. PARTING SURFACE

Generally injection mold has two major components : the movable half and the fixed half, during the injecction molding process, these two halves are pressed tightly from a sealed hollow to avoid the melt flow leakage and maintain certain holding pressure, the pressed surface are called parting surface , usually parting surface are the biggest projection outline of the part.

5. PARTING LINE

A parting line is an inevitable part of injection molded products.
It is the line of separation between where two halves of a mold meet.
It manifests itself on injection molded parts as a line that runs the entire perimeter of the part.
In most parts, it is just a line that runs straight down the middle.

6. CORE DESIGN

Core - A portion of the mold that goes inside a cavity to form the interior of a hollow part.
Core-cavity - A term used to describe a mold created by mating A-side and B-side mold halves.

7. CAVITY DESIGN

A mold is a hollow form typically made from stainless steel that has plastic injected into it to manufacture a plastic part.
The plastic is inserted into the mold cavity, which is a hole in the mold shaped like the desired part.

8. 3D VIEWS

ISOMETRIC VIEW