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Computer-aided reverse engineering for rapid replacement of parts

DSpace at IIT Bombay

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Title Computer-aided reverse engineering for rapid replacement of parts
 
Creator PAL, DK
BHARGAVA, LS
RAVI, B
CHANDRASEKHAR, U
 
Subject computer-aided design
metal casting
process simulation
rapid prototyping
reverse engineering
solid modelling
spectrometry
 
Description Indigenous product development using conventional means involves a relatively long lead time and cost, especially for replacing worn out and broken parts. This paper presents methodologies and technologies for computer-aided reverse engineering, illustrated by a reallife case study of an aluminium alloy separator body of a hydraulic filter assembly for the special army vehicle. It involved reconstruction of part geometry using 3-D scanning, material identification using spectrometry, casting process optimisation using simulation software, and fabrication of prototype and tooling using rapid prototyping systems. It was found that the fabrication of wax patterns directly from reverse-engineered CAD data in a suitable rapid prototyping system (such as thermojet), followed by conventional investment casting, gives a reliable and economic route for rapid development of one-off intricate parts for the replacement purpose.
 
Publisher DEFENCE SCIENTIFIC INFORMATION DOCUMENTATION CENTRE
 
Date 2011-07-21T08:18:26Z
2011-12-26T12:51:58Z
2011-12-27T05:38:49Z
2011-07-21T08:18:26Z
2011-12-26T12:51:58Z
2011-12-27T05:38:49Z
2006
 
Type Article
 
Identifier DEFENCE SCIENCE JOURNAL, 56(2), 225-238
0011-748X
http://dspace.library.iitb.ac.in/xmlui/handle/10054/5845
http://hdl.handle.net/10054/5845
 
Language en