*4.2.1 Injection molding and sheet metal forming*

Polymer Injection Forming (PIF) is a one-operation manufacturing technique and a novel approach to manufacture sheet metal/polymer macro-composite. During the process, the pressure which is exerted by the injection of the molten polymer is used to shape a metal sheet inside an injection mold. In the same step permanent bond between the metal sheet and polymer creating a fully finished product is carried out in only one manufacturing step. The Polymer Injection Forming manufacturing is a combination of the metal forming and injection molding processes. The process sequence can be seen in **Figure 11**.

