When designing parts for injection molding, the manufacturing process must be considered. Injection molding is a process in which solid thermoplastic resin pellets are melted, injected into a mold, and then cooled back to a solid state in a new form.
During both the injection and cooling stages of the manufacturing process, there are several factors which will affect the quality of the final product as well as the repeatability of the manufacturing process.
Following a few important guidelines during part design will help minimize problems during molding and in the field. Although it is not always possible to follow all of these guidelines, outlined on the following pages are some of the most fundamental recommendations when designing parts for injection molding.