Injection Forging—Process and Component

Injection forging is a process in which the work-material retained in an injection chamber is injected into a die-cavity in a form prescribed by the geometry of the exit (Fig. 1). The process is characterized by the combination of axial and radial flows of material to form the required component-form. In the 1960s, some interest was generated in injection upsetting [1]; it was developed with a view to extruding complex component-forms. The process configuration has since been the subject of research spanning fundamental analysis to the forming of specific components; branched components and gear-forms have been produced. The single-stage forming of such component-forms has been achieved by injection techniques; these forms were previously regarded as unformable by conventional processes. Currently, the nett-forming of some complex component-forms has been achieved by Injection Forging [2]. To date, several names have been used to describe this configuration—injection forming, injection upsetting, radial extrusion, side extrusion, transverse extrusion, lateral extrusion, and injection forging [2–22].

COMPUTER-AIDED DESIGN,
ENGINEERING, AND MANUFACTURING
Systems Techniques And Applications
VOLUME
V I
MANUFACTURING
SYSTEMS PROCESSES
Editor
CORNELIUS LEONDES
CRC Press
Boca Raton London New York Washington, D.C.