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Rapid tooling manufacturability evaluation using fuzzy-AHP methodology

DSpace at IIT Bombay

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Field Value
 
Title Rapid tooling manufacturability evaluation using fuzzy-AHP methodology
 
Creator NAGAHANUMAIAH
RAVI, B
MUKHERJEE, NP
 
Subject extent analysis method
part shrinkage
metal parts
design
dfm
rapid tooling
manufacturability evaluation
fuzzy-ahp
injection molding
 
Description Rapid tooling (RT) processes driven by rapid prototyping (such as stereolithography and selective laser sintering) can reduce mold development lead-time by 50% or more, though there are certain limitations in terms of mold materials, accuracy, and surface finish. This paper presents a systematic approach for manufacturability analysis of molds produced by rapid tooling methods, based on three aspects: mold feature manufacturability, secondary elements compatibility, and cost effectiveness. The geometric features of functional elements of the mold (core, cavity, side core, etc.) are evaluated for manufacturability using fuzzy-analytic hierarchy process (Fuzzy-AHP) methodology. The secondary elements of mold (parting surface, ejectors, cooling lines, etc.) are checked for compatibility with RT mold properties (machinability, wear resistance, and surface evenness). Finally, the cost of RT mold is estimated using a semi-empirical model based on cost drivers and cost modifiers, and compared with that of a conventional mold. The methodology has been demonstrated with an experimental mold. It is useful not only for RT mold process selection, but also for identifying minor modifications to a mold design to improve its manufacturability and economy.
 
Publisher TAYLOR & FRANCIS LTD
 
Date 2011-08-31T03:51:13Z
2011-12-26T12:59:20Z
2011-12-27T05:50:36Z
2011-08-31T03:51:13Z
2011-12-26T12:59:20Z
2011-12-27T05:50:36Z
2007
 
Type Article
 
Identifier INTERNATIONAL JOURNAL OF PRODUCTION RESEARCH, 45(5), 1161-1181
0020-7543
http://dx.doi.org/10.1080/00207540600622431
http://dspace.library.iitb.ac.in/xmlui/handle/10054/12572
http://hdl.handle.net/10054/12572
 
Language en