COMPUTER-AIDED-DESIGN OF NETT-FORMING BY INJECTION FORGING OF ENGINEERING COMPONENTS

Methodology and supporting techniques for design are developed with a view to defining a design and analysis system for nett-forming by inje ction forging. Processes and components were classified with reference to the method of injection, billet geometry, constraint to the billet and auxiliary media. FE simulation approaches were developed to predi ct flow-dependent flaws; the identified flaws were classified with ref erence to the mechanism of initiation of the flaws. Using these classi fications, forming configurations, parameters and tools are either sel ected for the specified component by referring to the forming of simil ar products or designed by using proposed procedures; these procedures enable the design of forming operations to achieve flawless, high-pre cision products. (C) 1998 Elsevier Science S.A. All rights reserved.