Control of set-up dominant multivariate manufacturing processes

Cox, Steven; Garside, John; Kotsialos, Apostolos; Rehman, Fayyaz; Woodfine, Nicholas; Marasini, Ramesh

Control of set-up dominant multivariate manufacturing processes

Cox, Steven; Garside, John; Kotsialos, Apostolos; Rehman, Fayyaz; Woodfine, Nicholas; Marasini, Ramesh

Authors

Steven Cox

John Garside

Apostolos Kotsialos

Fayyaz Rehman

Nicholas Woodfine

Ramesh Marasini

Abstract

A practical control chart is introduce, called multivariate Set-Up Process Algorithm (m-SUPA), which can be used to signal when a process is statistically off-target. This control chart uses a traffic light system to provide simple information to an operator about how close a measured part is to its global target. The chart works with a simple rule set resulting in process adjustments at a calculated point, rather than relying on rule-of-thumb methods. A final consideration is calculating the size of process adjustment, when one control adjustment has multiple effects on different design features. Simple feedback controllers are suggested for calculating process adjustments, providing consistency to an action taken. Simulation results suggest that m-SUPA with adjustments based on this kind of controllers is able to steer the process to a desired performance region.

Citation

Cox, S., Garside, J., Kotsialos, A., Rehman, F., Woodfine, N., & Marasini, R. (2014). Control of set-up dominant multivariate manufacturing processes. In Advances in manufacturing technology XXVIII : proceedings of the 12th International Conference on Manufacturing Research (ICMR2014) : incorporating the 29th National Conference on Manufacturing Research : 9th-11th September 2014 (209-214)

Conference Name	12th International Conference on Manufacturing Research (ICMR2014)
Conference Location	Southampton, UK
Acceptance Date	Jan 21, 2014
Publication Date	Sep 11, 2014
Deposit Date	Dec 10, 2015
Publicly Available Date	Jan 22, 2016
Pages	209-214
Series Title	International conference on manufacturing research
Series ISSN	2053-3373
Book Title	Advances in manufacturing technology XXVIII : proceedings of the 12th International Conference on Manufacturing Research (ICMR2014) : incorporating the 29th National Conference on Manufacturing Research : 9th-11th September 2014.
Keywords	Multivariate, Process control, Feedback controllers.
Publisher URL	http://www.solent.ac.uk/conference-centre/events/icmr-2014/icmr-2014.aspx