• Title/Summary/Keyword: Backward neuro-estimation

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Selection of Machining Parameters of Electric Discharge Wire Cut Using 2-Step Neuro-estimation (2단계 신경망 추정에 의한 와이어 컷 방전 가공 조건 선정)

  • Lee, Keon-Beom;Ju, Sang-Yoon;Wang, Gi-Nam
    • IE interfaces
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    • v.10 no.3
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    • pp.125-132
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    • 1997
  • We proposed a 2-step neural network approach for estimating machining parameters of electric discharge wire cut. The first step net, which is described as a backward neuro-estimation, is designed for estimating coarse cutting parameters while the second phase net, as a polishing forward neuro-estimation, is utilized for determining fine parameters. Sequential estimation procedure, based on backward and forward net, is performed using the net's approximation capability which is M to 1 and 1 to M mapping property. Experimental results an given to evaluate the accuracy of the proposed 2-step neuro-estimation.

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Automatic Generation of Machining Parameters of Electric Discharge Wire-Cut Using 2-Step Neuro-Estimation (와이어 가공 조건 자동 생성 2 단계 신경망 추정)

  • 이건범;주상윤;왕지남
    • Journal of the Korean Society for Precision Engineering
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    • v.15 no.2
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    • pp.7-13
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    • 1998
  • This paper presents a methodology for determining machining conditions in Electric Discharge Wire-Cut. Unification of two phase neural network approach with an automatic generation of machining parameters is designed. The first phase neural network, which is 1 to M backward-mapping neural net, produces approximate machining conditions. Using approximate conditions, all possible conditions are newly created by the proposed automatic generation procedure. The second phase neural net, which is a M to 1 forward-mapping neural net, determines the best one among the generated candidates. Simulation results with ANN are given to verify that the presenting methodology could apply for determining machining parameters in Electric Discharge Wire-Cut.

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