For the production of injection molded parts a mold is necessary to be placed on the injection molding machine.
It is commonly build out of steel or aluminum and is designed as a permanent form.
Depending on the plastic material used millions of parts can be created with one mold.
The complexity of a mold range from a simple two-plate molds up to a complex stack mold with sliders, etc.
To avoid additional costs it is important to think about the mold concept early in the concept phase of part design.

Mold in Injection Molding

Injection mold: 15 year old and more than 750000 parts produced.

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This glossary of plastic industry is provided by PLEXPERT Canada Inc.