Multi-objective optimisation of product quality in the manufacture of Ti-6Al-4V prostheses
by Jose Vicente Abellan Nebot, Hector R. Siller Carrillo, Carlos Vila Pastor, Ciro A. Rodriguez Gonzalez
International Journal of Manufacturing Research (IJMR), Vol. 5, No. 3, 2010

Abstract: This paper presents a multi-objective optimisation procedure for optimising the quality of prostheses and manufacturing productivity. The aim of this procedure is to develop machining performance models through a minimal and progressive Design of Experiment (DoE), which models the variables of interest by linear regressions or Surface Response Models (SRMs). The multi-objective optimisation is based on desirability functions, which are defined according to the relative importance of each variable of interest. The procedure was implemented to optimise a process of manufacturing spherical turned components for Ti-6Al-4V hip prostheses with special requirements as regards surface roughness Ra, Rz and geometrical form tolerance. [Received 12 October 2009; Revised 9 January 2010; Accepted 4 March 2010]

Online publication date: Wed, 02-Jun-2010

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