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|Title:||Generation of optimal parting direction based on undercut features in injection molded parts||Authors:||Fu, M.W.
|Issue Date:||1999||Citation:||Fu, M.W., Fuh, J.Y.H., Nee, A.Y.C. (1999). Generation of optimal parting direction based on undercut features in injection molded parts. IIE Transactions (Institute of Industrial Engineers) 31 (10) : 947-955. ScholarBank@NUS Repository. https://doi.org/10.1023/A:1007671314408||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.||Source Title:||IIE Transactions (Institute of Industrial Engineers)||URI:||http://scholarbank.nus.edu.sg/handle/10635/58333||ISSN:||0740817X||DOI:||10.1023/A:1007671314408|
|Appears in Collections:||Staff Publications|
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