Generation of optimal parting direction based on undercut features in injection molded parts

Mingwang Fu, J. Y.H. Fuh, A. Y.C. Nee

Research output: Journal article publicationJournal articleAcademic researchpeer-review

34 Citations (Scopus)

Abstract

An algorithm has been developed for the automated recognition of undercut features for determining the optimal parting direction of injection molded parts. On the basis of the 3-D solid model of a molded part described in Boundary Representation (B-Rep), the geometrical entities and the information of a solid model and their topological relationships are extracted. According to these information, the criteria under which the undercut feature is formed are set up and the undercut feature directions (the withdrawal directions of side-cores or side-cavities) are identified. The optimal parting direction is chosen based on the criterion of maximizing undercut feature volumes in each undercut feature group. Through the case studies on industrial parts, the methodology developed is found to be efficient and effective in determining the undercut features and the optimal parting direction automatically.
Original languageEnglish
Pages (from-to)947-955
Number of pages9
JournalIIE Transactions (Institute of Industrial Engineers)
Volume31
Issue number10
DOIs
Publication statusPublished - 1 Dec 1999
Externally publishedYes

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering

Cite this