Injection
molding is a manufacturing technique for making parts from plastic
material. Molten plastic is injected at high pressure into a mold,
which is the inverse of the desired shape. The mold is made by a
moldmaker (or toolmaker) from metal, usually either steel or aluminium,
and precision-machined to form the features of the desired part.
Injection molding is very widely used for manufacturing a variety
of parts, from the smallest component to entire body panels of cars.
It is the most common method of production, with some commonly made
items including bottle caps and outdoor furniture. |