测量能力和加工能力对误判率影响的研究

Study on Effect of Process Capability and Measurement Capability on Misjudgment Ratio

在分析机械加工系统的加工误差和测量误差对零件加工尺寸分布影响的基础上 ,建立了误判率与加工误差、测量误差之间的数学模型 ,揭示了误判率与加工能力和测量能力之间的关系 ,给出了模型的计算实例 .此研究对降低废品率、实现零废品制造提供了可靠的理论基础 .

A model associating misjudgment ratio with machining error and measurement error is developed on the basis of analyzing the effect on machining dimension distribution of work piece resulting from machining error and measurement error of processing system, and the relation between process capability, measurement capability and misjudgement ratio is disclosed. The study provides practical calculation examples of this model and lays a reliable theoretical basis to reduce waste ratio and realize zero waste control.