Model Predictive control of incremental sheet forming for geometric accuracy improvement

Lu, Haibo, Kearney, Michael, Li, Yanle, Liu, Sheng, Daniel, William J. T. and Meehan, Paul A. (2015) Model Predictive control of incremental sheet forming for geometric accuracy improvement. International Journal of Advanced Manufacturing Technology, 82 9-12: 1781-1794. doi:10.1007/s00170-015-7431-5

Author Lu, Haibo
Kearney, Michael
Li, Yanle
Liu, Sheng
Daniel, William J. T.
Meehan, Paul A.
Title Model Predictive control of incremental sheet forming for geometric accuracy improvement
Journal name International Journal of Advanced Manufacturing Technology   Check publisher's open access policy
ISSN 0268-3768
Publication date 2015-06-11
Year available 2015
Sub-type Article (original research)
DOI 10.1007/s00170-015-7431-5
Open Access Status Not Open Access
Volume 82
Issue 9-12
Start page 1781
End page 1794
Total pages 14
Place of publication London, United Kingdom
Publisher Springer
Collection year 2016
Language eng
Formatted abstract
Incremental sheet forming (ISF) is a highly flexible sheet forming process, but it suffers from poor geometric accuracy. This paper presents a feedback control strategy using model predictive control (MPC) to obtain improved geometric accuracy in ISF. Based on the incremental deformation mechanism of ISF, a novel model for shape state prediction has been proposed. The step depth of the toolpath was optimised based on shape state feedback during the forming process. Two different cases were studied for experimental validation of the developed control strategy. Comparisons between formed parts in both controlled and uncontrolled ISF processes were implemented in terms of cross-sectional profiles, formed depth at the bottom area and global deviation distribution. Results show that the geometric accuracy in ISF with feedback control has been greatly improved at the bottom area of the formed parts compared with a standard ISF approach without control. Improved geometric accuracy has been achieved on the wall of the parts as well.
Keyword Incremental sheet forming
Model Predictive Control
Geometric accuracy
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
Official 2016 Collection
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Citation counts: TR Web of Science Citation Count  Cited 1 times in Thomson Reuters Web of Science Article | Citations
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Created: Mon, 02 Nov 2015, 10:19:13 EST by Dr Michael Kearney on behalf of School of Mechanical and Mining Engineering