Advantages of Injection Molding for Automotive Applications
In the automotive industry, repeatability—or the ability to consistently produce identical parts—is crucial. Because injection molding typically relies on robust metal molds, the final plastic parts produced using the mold are practically identical. There are factors that come into play with injection molding, but if the mold is well designed and made, injection molding is a highly repeatable process.
Scale and cost
Though the injection mold-making process is expensive (as well as the cost of the mold), injection molding is a highly scalable process whose overall cost decreases the more parts are made. For mass production applications, injection molding is thus beneficial to the manufacturer. For anything less than mass production, however, injection molding tooling costs may curb the cost efficiency of the process.
A significant benefit of using injection molding for automotive production is the wide range of rigid, flexible and rubber plastics the process is compatible with. In the automotive industry, a range of different polymers are used for various applications, including ABS, polypropylene, acrylic, acetal, nylon, polycarbonate and more.
High precision and surface finish
Injection molding is ideal for producing plastic parts with relatively simple geometries and results in parts with high surface finish quality. Manufacturers have many finish options when producing parts, including various surface textures—such as glossy, rough or matte—which are applied directly to the mold rather than the molded part. Different plastic materials also influence the final surface finish.
If you’re ready to start your next project, upload your product design information for a competitive injection molding quote today.