About Plastic Injection Molding

Plastic injection molding is a manufacturing process for the mass production of plastics parts.

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Introduction to Plastic Injection Analyses

The image below illustrates the injection molding process from beginning to end. The numbered locations correspond to the different stages of the process. You can simulate stages 3 through 6 using the tools in the Plastic Injection app.



Plastic pellets enter the hopper.

Pellets are heated to melting point in the barrel.

Fill simulation: Plastic injected by screw into mold cavity.

Pack simulation: Compensate for shrinkage and continue injecting material.

Mold simulation: Coolant is circulated through the mold to provide continuous cooling.

Ejection and warping: Mold is opened, part is ejected, and warpage or part deformation might occur.