SYSTEM AND METHOD USED IN DESIGN, PRODUCTION AND OPERATION OF METAL FORMING TOOLS

摘要

Metal forming tool design or metal forming manufacture utilize computer aided design to generate initial tool geometry and/or to optimize or investigate possible changes in the parameters. Such computer models utilize friction parameters in combination with material characteristics of the tool and blank to assess the process before actual testing. It has been found that such models and assessment possible with such models can be significantly improved by use of a friction parameter representative of the mixed film stage of the lubricant. In a preferred embodiment an approximate average of the mixed film range is used to determine a coefficient of friction used in a computer aided design model that includes a finite element analysis procedure.