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An Algorithm for Design of Multi-Stage Molds for Multi-Material Objects With Complex Interfaces

[+] Author Affiliations
S. K. Gupta, X. Li, A. Priyadarshi

University of Maryland, College Park, MD

Paper No. IMECE2002-39426, pp. 717-729; 13 pages
  • ASME 2002 International Mechanical Engineering Congress and Exposition
  • Design Engineering
  • New Orleans, Louisiana, USA, November 17–22, 2002
  • Conference Sponsors: Design Engineering Division
  • ISBN: 0-7918-3628-2 | eISBN: 0-7918-1691-5, 0-7918-1692-3, 0-7918-1693-1
  • Copyright © 2002 by ASME


This paper describes an algorithm for automated design of multi-stage molds for manufacturing multi-material objects using multi-shot injection molding process. The algorithm described in this paper is a significant improvement over our previous algorithm [15] that worked on multi-material objects with simple planar interfaces. In the multi-stage molding process, the desired multi-material object is produced by carrying out multiple molding operations in a sequence, adding one material in the target object in each mold-stage. Each mold-stage can add only one type of material. Therefore, we need a sequence of mold-stages such that (1) each mold-stage adds a single-material component either fully or partially, and (2) the molding sequence completely produces the desired object. We expect that our algorithm will provide the necessary foundations for automating the design of multi-stage molds and therefore will help in significantly reducing the mold manufacturing lead-time.

Copyright © 2002 by ASME
Topics: Algorithms , Design



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