Process model development and validation using artificial neural networks

Mohamed H. Gadallah, Khaled Abdel Hamid El-Sayed and Keith Hekman

European Journal of Industrial Engineering, 2009, vol. 3, issue 1, 99-125

Abstract: Modelling and simulation are important analysis and presynthesis tools in engineering. Flat end milling processes are accurately modelled using Artificial Neural Networks (ANNs) and real experimentation. ANNs are expensive techniques, as they require enormous experiments over ranges of input parameters. This is crucial to any realistic modelling. Orthogonal Arrays (OAs) and Design of Experiments (DOEs) are used to remedy the modelling expense using Neural Networks (NNs). The high cost of ANNs is offset by combining DOEs with ANNs to model part of the domain instead of the full domain. The process variables include depth of cut (a), spindle speed (n), feed rate (f) and tool diameter (d). Our interest is in measuring the dynamic variations of the cutting forces and their time behaviour. Several experimental models are developed, including two-level, three-level, four-level and five-level OA-based models. The result is a valid neural model for flat end milling over realistic domains of process parameters. [Submitted 21 February 2008; Revised 07 May 2008; Accepted 23 June 2008]

Keywords: artificial neural networks; ANNs; design of experiments; DOE; process modelling; flat end milling; orthogonal arrays; depth of cut; spindle speed; feed rate; tool diameter; cutting forces. (search for similar items in EconPapers)
Date: 2009
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