Extrusion of metal matrix composites-modelling and experiments

C. H J Davies, W. C. Chen, I. V. Samarasekera, E. B. Hawbolt, J. K. Brimacombe

Research output: Chapter in Book/Report/Conference proceedingConference PaperOther

3 Citations (Scopus)

Abstract

An integrated approach has been adopted for the analysis of the extrusion of metal matrix composites. The deformation of composites of the aluminium alloy 6061 and particulate alumina was studied by compression testing over a range of strain rates and temperatures representative of extrusion conditions. The data were fitted to a hyperbolic sine constitutive relation, as is commonly used in the modelling of hot working. The constitutive equations so developed were used in a finite element model to compute the strain rate, strain and temperature distribution in the material during extrusion. Model predictions for the extrusion of round sections are presented together with corresponding plant trial data. The use of the model for the development of extrusion limit diagrams which define optimum operating conditions and product quality is discussed.

Original languageEnglish
Title of host publicationProceedings of the Symposium on High Performance Metal and Ceramic Matrix Composites
EditorsKamleshwar Upadhya
PublisherThe Minerals, Metals & Materials Society
Pages195-202
Number of pages8
ISBN (Print)0873392663
Publication statusPublished - 1 Jan 1994
EventProceedings of the Symposium on High Performance Metal and Ceramic Matrix Composites - San Francisco, United States of America
Duration: 27 Feb 19943 Mar 1994

Publication series

NameProceedings of the Symposium on High Performance Metal and Ceramic Matrix Composites

Conference

ConferenceProceedings of the Symposium on High Performance Metal and Ceramic Matrix Composites
CountryUnited States of America
CitySan Francisco
Period27/02/943/03/94

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