Since the censored characteristics are unmonitored effectively in the manufacturing process, the produced product tends to have an\nunexpected high infant failure rate.Thus, this paper analyzes the associated relationship between product reliability and censored\nquality characteristics in manufacturing process firstly, and the dynamic and universal control demands for censored characteristics\nare presented. In view that traditional CEV-based control charts are usually confined to some specific types when dealing with\ncensored characteristics, which greatly restrict the wide application of censored control charts in the high-quality manufacturing\nprocess, the convergent CEV technique based on the principle of asymptotic reduction is proposed to be better applied in the\nanalysis of censored characteristics. And novel design procedures and simple but practical performance indicator in the form of\nthe most dangerous alarm distance for censored characteristics of Weibull distribution are put forward. Finally, the validity of\nthe proposed method is verified by a case study of monitoring a censored characteristic relative to lifetime of some aeronautical\nbearings, and the result proves that the sensitivity of the proposed control chart increased 79.96% compared to traditional CEV\nchart and is proved to be applicable to monitoring mixed censored characteristics affecting product reliability in manufacturing\nprocess.
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