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NC end milling optimization using evolutionary computation
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DOI：10.1016/S0890-6955(01)00151-1.png)
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Abstract
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Typically, NC programmers generate tool paths for end milling using a computer-aided process planner but manually schedule conservative cutting conditions. In this paper, a new evolutionary computation technique, particle swarm optimization (PSO), is proposed and implemented to efficiently and robustly optimize multiple machining para. meters simultaneously for the case of milling An artificial neural networks (ANN) predictive model for critical process parameters is used to predict the cutting forces which in turn are used by the PSO developed algorithm to optimize the cutting conditions subject to a comprehensive set of constraints. Next, the algorithm is used to optimize both feed and speed for a typical case found in industry, namely, pocket-milling. Machining time reductions of up to 35% are observed. In addition, the new technique is found to be efficient and robust. (C) 2002 Elsevier Science Ltd. All rights reserved.
Keywords:
end milling
optimization
particle swarm optimizer
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