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Application Research on Reliability Improvement Technique of CNC Lathes

Author: BoBo
Tutor: WangYiQiang
School: Jilin University
Course: Mechanical and Electronic Engineering
Keywords: CNC lathe Reliability Failure Analysis Statistics
CLC: TG659
Type: Master's thesis
Year: 2008
Downloads: 306
Quote: 3
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In this paper, the existing CNC machine tool reliability theory to the detailed research, and through the field test method evaluation existing lathe characteristics, the use of classical reliability theory and mathematical statistics knowledge, and the overall design and prepare nc machine data statistical analysis software, further on the lathe of time between failures were analyzed, and put forward the relevant data processing, CNC lathe reliability improvement measures and implementation of reliability growth technology. In the collection of data, using simple random sampling method to determine the sampling plan, it is concluded that the number of sampling sample, the actual situation that data collection is a continuous stochastic process, and the failure probability density function according to the curve, the failure rate function curve, maintenance degree function curve group analysis, draw relevant conclusions, illustrate the type of nc machine tool fault time distribution characteristics and trends, and the numerical control machine tool reliability failure type and failure criterion, the establishment of research product reliability database, set up work mode, analysis the influence of fault on nc machine tools and deadly degree, make fault eliminate measures, the implementation of the project, and to verify the rationality, by using nc machine tool data statistical analysis system, to implement the reliability growth of technology after repeated research products, the reliability of the evaluation and comparison analysis and evaluation.

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CLC: > Industrial Technology > Metallurgy and Metal Craft > Metal cutting and machine tools > Program control machine tools, CNC machine tools and machining
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