Injection Molding is a manufacturing process for producing parts by ejecting material into a mold. Most commonly thermoplastics and thermosetting polymers. The material for the part is fed into a heated barrel, mixed and forced into a mold cavity, where it cools down and hardens to the configuration of the cavity.
When we work with our customers on design of a product and come up with the design, molds are made by a mold maker or tool from metal, usually either from steel or aluminum and are precision-machined to form the features of the designed part. Injection molding is widely used for manufacturing of a variety of parts, from the smallest component to the entire body panels of cars.
Today we have advances in 3D printing technology using photopolymers which melt during the injection molding of some lower temperature thermoplastics. It can be used for some simple injection molds.