简述了电火花加工工艺的特点及其复杂性,分析了电火花加工工艺的决策过程,建立了电火花加工工艺选择的神经网络(NN)模型.针对电火花加工工艺数据的特点,研究了神经网络输入输出数据的预处理方法,提出了基于对数变换的数据预处理算法,测试表明效果较优.所建立的NN模型能真实反映机床本身的工艺特点,模型值和实测值相差较小,能实现在给定加工要求下电加工参数的自动选择.
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