Abstract

The task of design synthesis can be accomplished by human beings because of their ability to take into account the physics of the problem, past experience, and to evaluate a number of alternatives to determine the best compromise design. This paper illustrates a system that automates this procedure for injection mold design, and more specifically, gating design. The gating plan synthesis system described in this paper, automatically determines an initial gating configuration based on a features representation of the part and a knowledge-base that captures some of the design rules used in practice. A Feature Modeling Utility (FMU), a Topology and Geometry Utility System (TAGUS), and an automatic mesh generator, OCTREE, are used to identify and query features and to perform geometric reasoning about the part. The methodology used, implementation details, and examples of test cases are presented.

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