Abstract
By analyzing the maintainability data of a certain high-speed punch, its main fault modes, such as oil/gas parts damage, parts damage and leakages, were identified. According to the fault signal measurability and the accelerated failure mechanism, the content and scheme of a reliability accelerated test (RAT) were planned specifically, which was partly verified by some tests on a high-speed punch. This paper provides a basis for the RAT of high-speed punch.
Highlights
High-speed punch is an efficient, high-precision and high-automation punching machine
Zhang [7] provided an optimum distribution model which can be determined as Weibull distribution, providing a theoretical basis for the failure analysis and prediction, and reliability enhancement of the numerical control machine tools
Zhang [11] proposed reliability enhancement testing plan based on the analysis of the failure mechanism of NC rotary table
Summary
High-speed punch is an efficient, high-precision and high-automation punching machine. Oliveira [4] analyzed some estimation methods, such as analytical, the numerical or the approximated, which can be used to obtain the time-tofailure distribution and presented an example of the application and analysis of degradation tests. Zhang [7] provided an optimum distribution model which can be determined as Weibull distribution, providing a theoretical basis for the failure analysis and prediction, and reliability enhancement of the numerical control machine tools. Zhang [11] proposed reliability enhancement testing plan based on the analysis of the failure mechanism of NC rotary table. The failure analysis of high-speed punch is analyzed, and the content and scheme of RAT is proposed and carried out
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