Reliability Analysis of the Home and Abroad CNC Equipment Used in Automobile Parts Industry

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Abstract:

Through analyzing fault information of the home and abroad CNC equipment used in the same auto parts production, the fault data fitting were implemented in this paper. Assuming time between failure probability density function and the empirical distribution function follow the Weibull distribution, A reliability statistical model was built using the least squares method and a linear parameter distribution model regression method. The linear correlation test and the Weibull distribution fault interval obtained show the fact that both the home and abroad equipment are subject to the two parameter Weibull distribution, and after calculating the three indexes of reliability assessment, a conclusion can be made that the reliability of domestic equipment in the study is slightly lower than that of foreign equipment.

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802-807

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September 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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[1] Wang Xiujie, Zhao Xiaoyu, Enhance the independent innovation capability of Chinese auto parts industry countermeasures, Enterprise economic, 2011, (8).

Google Scholar

[2] A. C. Polonekpha, The accuracy and reliability of numerical control machine tools. LI Changqi, YU Liji, transl. Beijing: China Machine Press, 1987(in Chinese).

Google Scholar

[3] Gou Weidong, Technology application for reliability statistics of high-speed machining center , Manufacturing technology and machine tools, 2012(11).

Google Scholar

[4] Yazhou Jia, Weiwei Jiang & Guixiang Shen. Research and application on the management information system of the NC equipment reliability. Proceedings of International IEEE Conference on the Business of Electronic Product Reliability and Liability, 2003, Hong Gong: 313-319.

Google Scholar

[5] Sun Zhili, Zhang Yiming , Nc machine tool performance analysis and reliability design technology, Mechanical industry press, 2011, Beijing: 1-100.

Google Scholar