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TECHNICAL PAPERS

Towards Automated Design of the Feed System of Injection Molds by Integrating CAE, Iterative Redesign and Features

[+] Author and Article Information
R. K. Irani

Mechanical Design Methods Program, Engineering Mechanics Laboratory, GE Corporate Research and Development, Schenectady, NY 12301

B. H. Kim, J. R. Dixon

Department of Mechanical Engineering, University of Massachusetts, Amherst, MA 01003

J. Eng. Ind 117(1), 72-77 (Feb 01, 1995) (6 pages) doi:10.1115/1.2803281 History: Received March 01, 1991; Revised January 01, 1994; Online January 17, 2008

Abstract

A prototype software system that automatically designs the gating and runner systems, which comprise the feed system, of injection molds is described. The system, called AMDS (Automated Mold Design System), integrates CAE, with iterative redesign and knowledge stored in a features representation of the part. Gating design involves the generation of the best gating configuration represented by number, location, and type of gates, and the determination of the best conditions under which plastic should enter through the gates. Runner design also involves the generation of a runner layout followed by the sizing of the runner segments. The design of both systems is iterative, whereby the design variables are changed, the new design analyzed, evaluated, and redesigned if necessary, until an acceptable design is obtained. The evaluation of the gating design is based on eighteen performance parameters, while the evaluation of the runner system is based on four performance parameters. The system has been tested on three-dimensional parts made up of planar rectangular wall features with holes as add-on features.

Copyright © 1995 by The American Society of Mechanical Engineers
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