Injecting Molding

Injection MoldingDavey JamisonWhat Is It?Injection molding is a type of manufacturing process that works by injecting heated material (usually plastics) into a mold

HistoryIn 1868, John W. Hyatt patented a process that produced a product called celluloid, which he used as a replacement for ivory in billiard balls. Four years later, he became the first to inject hot celluloid into a mold. He and his brother patented an injection molding machine that used a plunger to inject plastic through a heated cylinder and into a mold.

Uses Injection molding is the preferred process for manufacturing plastic parts. It can be used to create many things such as electronic housings, containers, bottle caps, automotive interiors, combs, and most other plastic products available today. AdvantagesIf the desired part quantity is great enough, the mold cost becomes relatively insignificant.It is fast. Each product can take between 15-30 to makeAll leftover plastic can be to be reused, therefor there is very little waste.

DisadvantagesInjectionmolds themselves can be upward of $100,000 Dollars, so in order to be practical, larger production runs are necessary.There are some design restrictions and not all compounds are suitable for injection molding