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Prediction of geometric errors of stamped sheet metal parts using deviation field decomposition
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Das, Abhishek, Franciosa, Pasquale, Gerbino, Salvatore and Williams, D. K. (2016) Prediction of geometric errors of stamped sheet metal parts using deviation field decomposition. In: International Conference on Competitive Manufacturing (COMA), Stellenbosch, South Africa, 27-29 Jan 2016. Published in: Proceedings of International Conference on Competitive Manufacturing (COMA) pp. 109-114. ISBN 9780797216020.
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Official URL: http://conferences.sun.ac.za/index.php/doie/coma16
Abstract
Stamping process is widely used to fabricate sheet-metal components. Due to the intrinsic nature of sheet-metal parts, it is usually difficult to control the quality of the final shape, surface defects or geometric errors. Additionally, to meet tight GD&T specifications, a proactive prediction technique is required to estimate global/local geometric defects caused by manufacturing steps. Current best practice relies on manual trial-and-error approaches which are far to be optimal and are costly and time consuming. This paper proposes a model-driven methodology to forecast geometric errors for given set of process parameters (forward process), and consequently optimise (feedback process) the process parameters to achieve given quality standards. The methodology is based on: (i) experimental investigation with varying process parameters and subsequently, deviation field extraction by mapping high density Cloud-of-Points with nominal CAD model; (ii) deviation field decomposition; (iii) surrogate model development by mapping decomposed deviation field to process parameters. An industrial case study is used to validate the methodology.
Item Type: | Conference Item (Paper) | |||||||||
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Subjects: | T Technology > TJ Mechanical engineering and machinery T Technology > TS Manufactures |
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | |||||||||
Library of Congress Subject Headings (LCSH): | Sheet-metal work , Metal stamping , Sheet-metal work--Defects | |||||||||
Journal or Publication Title: | Proceedings of International Conference on Competitive Manufacturing (COMA) | |||||||||
Publisher: | Department of Industrial Engineering, Stellenbosch University. | |||||||||
ISBN: | 9780797216020 | |||||||||
Official Date: | 29 January 2016 | |||||||||
Dates: |
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Page Range: | pp. 109-114 | |||||||||
Status: | Peer Reviewed | |||||||||
Publication Status: | Published | |||||||||
Access rights to Published version: | Open Access (Creative Commons) | |||||||||
Date of first compliant deposit: | 18 October 2017 | |||||||||
Date of first compliant Open Access: | 7 November 2017 | |||||||||
RIOXX Funder/Project Grant: |
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Conference Paper Type: | Paper | |||||||||
Title of Event: | International Conference on Competitive Manufacturing (COMA) | |||||||||
Type of Event: | Conference | |||||||||
Location of Event: | Stellenbosch, South Africa | |||||||||
Date(s) of Event: | 27-29 Jan 2016 | |||||||||
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Open Access Version: |
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