Challenge

Week 8 - Challenge 6 - Core & Cavity Design

SSyed Faizan14 Nov 2022

AIM:--

Create the Core and cavity blocks for the switch bezel designed in the earlier challenge.

1. CREATING TOOLING AXIS -

The Tooling Direction is basically the direction that the mold pulls a part. 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 Dye line or the Tooling Direction.

The base wall is extraced and A point was created at the center of the base wall , Using that axis system is inserted,

FIG:--create an intersection along yz plane and create an bisecting line.

FIG:-- create an intersection line using xz plane and create a line which is 7-8deg apart.

FIG:--Now create a bisecting line from the sketch1 line and from the sketch 2 line.

Tooling axis is ready,

2. PUBLICATION

Publication is done to the component to make it visible and navigate easily.
To publish the component go to tools > publications and then select the tooling axis and the class A surface.
A separate tree structure is formed under the main part.

3. 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.

Before going to drat analysis go to customized view parameter >under mesh >check material and then click ok.
Now for draft analyses go to insert » analysis » feature draft analysis.
Use the compasss to define the draft direction.
In the colour scale change the draft angle to 3 degree.
The component changes to green in indication of passing draft angle.
Use running point to check the angle on the component.

FIG:--The draft analysis is complete.

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.