Reliability Assessment of Cutting-Tool for Machine Tools with Three-Parameter Weibull Distribution under Variable Machining Conditions

doi:10.7652/xjtuxb201804011

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	Reliability Assessment of Cutting-Tool for Machine Tools with Three-Parameter Weibull Distribution under Variable Machining Conditions
	Wang, Zhiming; Ren, Lina; Duan, Hongyan; Yang, Haiyu
刊名	Hsi-An Chiao Tung Ta Hsueh/Journal of Xi'an Jiaotong University
	2018-04-10
卷号	52 期号:4 页码:77-83
关键词	Cutting Failure analysis Hazards Machine tools Reliability Reliability analysis Risk assessment Turning Weibull distribution Machining conditions Probability modeling Processing condition Proportional hazards Proportional hazards model Reliability assessments Three parameter Weibull distribution Three-parameter Weibull
ISSN号	0253987X
DOI	10.7652/xjtuxb201804011
英文摘要	To meet all kinds of processing requirements for such as rough/finish machining and workpiece surface quality, it is necessary to constantly change the cutting speed, feed rate and cutting depth of cutting-tools, and the types of machined parts and components are also changeable, so the processing conditions of cutting-tools are not constant. Based on the analysis of single probability model for two-parameter Weibull distribution and the comprehensive consideration of some physical factors, e.g. cutting parameters, which affect the life and reliability of cutting-tool, a Cox proportional risk model with three-parameter Weibull proportional hazard is constructed. The Nelson cumulative failure principle is utilized to give an equivalent time to different processing time, then the problem of how to transfer different processing time into an equivalent time is solved, which is regarded as the same machining condition. The change mechanism of reliability and failure rate for cutting-tool under variable processing condition is revealed with the Bayesian simulation model parameter estimation. A real example shows that both reliability and failure rate are piecewise functions, the former continuously and monotonically decreases, while the latter discontinuously but monotonically increases due to the effect of cutting parameters, and jumps up or goes down at different operating demarcation points. © 2018, Editorial Office of Journal of Xi'an Jiaotong University. All right reserved.
语种	中文
出版者	Xi'an Jiaotong University
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/114143]
专题	机电工程学院
作者单位	School of Mechanical and Electronic Engineering, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Wang, Zhiming,Ren, Lina,Duan, Hongyan,et al. Reliability Assessment of Cutting-Tool for Machine Tools with Three-Parameter Weibull Distribution under Variable Machining Conditions[J]. Hsi-An Chiao Tung Ta Hsueh/Journal of Xi'an Jiaotong University,2018,52(4):77-83.
APA	Wang, Zhiming,Ren, Lina,Duan, Hongyan,&Yang, Haiyu.(2018).Reliability Assessment of Cutting-Tool for Machine Tools with Three-Parameter Weibull Distribution under Variable Machining Conditions.Hsi-An Chiao Tung Ta Hsueh/Journal of Xi'an Jiaotong University,52(4),77-83.
MLA	Wang, Zhiming,et al."Reliability Assessment of Cutting-Tool for Machine Tools with Three-Parameter Weibull Distribution under Variable Machining Conditions".Hsi-An Chiao Tung Ta Hsueh/Journal of Xi'an Jiaotong University 52.4(2018):77-83.