Adaptive process control strategy for a two-step bending process

F.N. Dallinger, E.P. Roux, Gosse Tjipke Havinga, R. d'Ippolito, R. van Tijum, R. van Ravenswaaij, P. Hora, Antonius H. van den Boogaard

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A robust production is an important goal in sheet metal forming in order to make the process outcome insensitive to variations in input and process conditions. This would guarantee a minimum number of defects and reduced press downtime. However, for com-plex parts it is difficult to achieve robust settings. Parts without defects can only be real-ized if the process parameters are adapted to the changed conditions. In this paper, an approach for adaptive process control is presented, taking the uncertain-ties and tolerances of the process and material into consideration. The proposed control approach combines feedback and feed-forward control strategies. The most significant improvement is to incorporate feed-forward control with knowledge about the system (also known as predictive models). To create these models high fidelity numerical models have been created. Furthermore, a procedure is presented to update the coefficients of the predictive model to adapt it to the actual process state. To evaluate the control strategy prior to its implementation, a testing environment has been developed. Different test scenarios for common states of the process have been generated to evaluate the improvement of the proposed control strategy.
Original languageEnglish
Title of host publicationKES Transactions on Sustainable Design and Manufacturing
EditorsR. Setchi, R.J. Howlett, M. Naim, H. Seinz
Place of PublicationCardiff
PublisherFuture Technology Press
ISBN (Print)ISBN 978-0-9561516-4-3
Publication statusPublished - 28 Apr 2014
EventInternational Conference on Sustainable Design and Manufacturing, SDM 2014 - Cardiff, United Kingdom
Duration: 28 Apr 201430 Apr 2014

Publication series

PublisherFuture Technology Press, England, UK


ConferenceInternational Conference on Sustainable Design and Manufacturing, SDM 2014
Abbreviated titleSDM
Country/TerritoryUnited Kingdom


  • METIS-307237
  • IR-93203


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