DSpace
 

DSpace at IIT Bombay >
IITB Publications >
Article >

Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/12572

Title: Rapid tooling manufacturability evaluation using fuzzy-AHP methodology
Authors: NAGAHANUMAIAH
RAVI, B
MUKHERJEE, NP
Keywords: extent analysis method
part shrinkage
metal parts
design
dfm
Issue Date: 2007
Publisher: TAYLOR & FRANCIS LTD
Citation: INTERNATIONAL JOURNAL OF PRODUCTION RESEARCH, 45(5), 1161-1181
Abstract: 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.
URI: http://dx.doi.org/10.1080/00207540600622431
http://dspace.library.iitb.ac.in/xmlui/handle/10054/12572
http://hdl.handle.net/10054/12572
ISSN: 0020-7543
Appears in Collections:Article

Files in This Item:

There are no files associated with this item.

View Statistics

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Valid XHTML 1.0! DSpace Software Copyright © 2002-2010  Duraspace - Feedback