Survival life analysis of the cutting tools during turning titanium metal matrix composites (Ti-MMCs)

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DOIResolve DOI: http://doi.org/10.1016/j.procir.2014.03.047
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TypeArticle
Proceedings titleProcedia CIRP
Conference6th CIRP International Conference on High Performance Cutting (HPC2014), June 23-25, 2014, Berkley, California
ISSN2212-8271
Volume14
Pages605609; # of pages: 5
SubjectMetal matrix composites; survival analysis; reliability function
AbstractMetal matrix composites (MMCs), as a new generation of materials; have proven to be viable materials in various industrial fields such as biomedical and aerospace. In order to achieve a valuable modification in various properties of materials, metallic matrices are reinforced with additional phases based on the chemical and/or physical properties required in the in-service operating conditions. The presence of the reinforcements in MMCs improves the physical, mechanical and thermal properties of the composite; however it induces significant issues in the domain of machining, such as high tool wear and inferior surface finish. The interaction between the tool and abrasive hard reinforcing particles induces complex deformation behaviour in the MMC structure. Sever tool wear is technically the most important drawback of machining MMCs. In this study a statistical model is developed to estimate the mean residual life (MRL) of the cutting tool during machining Ti-MMCs. Initial wear, steady wear and rapid wear regions in the tool wear curve are regarded as the different states in the statistical model. Hence, the valuable information regarding the estimated total time spent in each state, called the sojourn time, and the transition times between the states are obtained from the model. In this paper the standard cutting conditions, based on the recommendation of the tool supplier, are adopted. Based on a Weibull model, the reliability and hazard functions are obtained and are utilized in order to calculate the MRL and the sojourn times. © 2014 Published by Elsevier B.V.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); Aerospace
Peer reviewedYes
NPARC number21273058
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Record identifier42dda8c5-2a4f-4ecd-b678-af3dfc89280b
Record created2014-12-10
Record modified2016-05-09
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