Insert molding involves “inserting” a part, into a mold and injecting plastic around it. Inserted components can be almost anything — magnets, screws, nuts, fasteners, rivets, tubes — and can be made of a variety of metals including brass, stainless steel, or copper.
The first step in insert molding, starts with design. The mold must be able to accommodate the placement of the insert into the mold by a molding machine operator or an automation process. In addition, the insert must be able to handle the extreme temperatures of the molding process.