Optimising the thermoforming process of polymeric foams: An approach by using the Taguchi method and the utility concept

C. Yang, S. W. Hung

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

The use of the conventional Taguchi method for determining the optimum setting of controllable factors through off-line experiments focuses on products with a single quality characteristic or response. However, most products have several qualitative characteristics or responses of interest. The Taguchi method in itself optimises a single response or performance characteristic, yielding a set of process parameters. This particular setting, however, may not give the desired results for other characteristics of the product. There is a need to obtain a single optimum setting of process parameters that can be used to produce products with optimum or near optimum quality characteristics as a whole. Multi-characteristic response optimisation may be the solution to the above problem. In this report, a case study on thermoforming polypropylene foams, utilising a simplified multi-criterion methodology based on Taguchi's approach and utility concept, is discussed. Key processing factors affecting product quality are identified. It has been shown that the proposed Taguchi approach with the utility concept can provide an appropriate solution to yield a satisfactory product quality for a multi-response process optimisation problem.

Original languageEnglish
Pages (from-to)353-360
Number of pages8
JournalInternational Journal of Advanced Manufacturing Technology
Volume24
Issue number5-6
DOIs
StatePublished - 2004

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