Mould design in 9 steps.

For the sake of simplicity and clarity this example will be fairly basic;nevertheless, the principles involved are the same for any mould design
Specifications for design example
Component: Flanged housing
Type of tool: Two-plate
Gate type: Edge or sub gate
No. of impressions: 8
Material: Polyacetal
Cycle required: 20 seconds
Production rate required: 50,000 per month
A component drawing has been supplied as shown in Figure 7.1. It consists of series concentric diameters with a hole through the middle.

 

The dimensions of the part have been omitted in this example but we will assume that we can mould them to the drawing tolerances on an eight-impression tool.