A preliminary study of turning of composites

Most of the engineering parts are made from metal based materials. Composites have recently become an economic alternative to traditional materials like metals due to their considerable advantages especially in high specific strength and specific stiffness. But, turning of composites is differ...

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主要作者: Hassan, Nurhafizzah
格式: Thesis
语言:English
出版: 2008
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spelling my-uthm-ep.70892022-06-01T07:39:04Z A preliminary study of turning of composites 2008-02 Hassan, Nurhafizzah TA Engineering (General). Civil engineering (General) TA401-492 Materials of engineering and construction. Mechanics of materials Most of the engineering parts are made from metal based materials. Composites have recently become an economic alternative to traditional materials like metals due to their considerable advantages especially in high specific strength and specific stiffness. But, turning of composites is different from turning conventional metals because of the inhomogeneity and anisotropic characteristics of composites. It also depends on the diversity of fiber and matrix properties, fiber orientation, and the relative volume of matrix and fibers. During a turning operation, vibration and noise are generated as a result of the interaction between the rotating work piece and moving cutting force. Therefore, there is a need to understand the dynamic behaviour of composites during machining particularly turning. In this project, the influence factors contributing to surface finish, vibration and noise during turning operation have been established. A mathematical model for the dynamic behaviour of the turning operation is constructed via Rayleigh beam theory and coded into MATLAB tool for simulation. A parametric study is also performed which involves several operational conditions and work piece characteristics to discover their effect on vibration of a work piece (hence the surface finish) through simulation. Results from the numerical simulation generated are found to be consistent with many experimental findings done by the previous researcher. 2008-02 Thesis http://eprints.uthm.edu.my/7089/ http://eprints.uthm.edu.my/7089/1/24p%20NURHAFIZZAH%20HASSAN.pdf text en public mphil masters University of Liverpool Department of Engineering, School of Mechanical Engineering
institution Universiti Tun Hussein Onn Malaysia
collection UTHM Institutional Repository
language English
topic TA Engineering (General)
Civil engineering (General)
TA Engineering (General)
Civil engineering (General)
spellingShingle TA Engineering (General)
Civil engineering (General)
TA Engineering (General)
Civil engineering (General)
Hassan, Nurhafizzah
A preliminary study of turning of composites
description Most of the engineering parts are made from metal based materials. Composites have recently become an economic alternative to traditional materials like metals due to their considerable advantages especially in high specific strength and specific stiffness. But, turning of composites is different from turning conventional metals because of the inhomogeneity and anisotropic characteristics of composites. It also depends on the diversity of fiber and matrix properties, fiber orientation, and the relative volume of matrix and fibers. During a turning operation, vibration and noise are generated as a result of the interaction between the rotating work piece and moving cutting force. Therefore, there is a need to understand the dynamic behaviour of composites during machining particularly turning. In this project, the influence factors contributing to surface finish, vibration and noise during turning operation have been established. A mathematical model for the dynamic behaviour of the turning operation is constructed via Rayleigh beam theory and coded into MATLAB tool for simulation. A parametric study is also performed which involves several operational conditions and work piece characteristics to discover their effect on vibration of a work piece (hence the surface finish) through simulation. Results from the numerical simulation generated are found to be consistent with many experimental findings done by the previous researcher.
format Thesis
qualification_name Master of Philosophy (M.Phil.)
qualification_level Master's degree
author Hassan, Nurhafizzah
author_facet Hassan, Nurhafizzah
author_sort Hassan, Nurhafizzah
title A preliminary study of turning of composites
title_short A preliminary study of turning of composites
title_full A preliminary study of turning of composites
title_fullStr A preliminary study of turning of composites
title_full_unstemmed A preliminary study of turning of composites
title_sort preliminary study of turning of composites
granting_institution University of Liverpool
granting_department Department of Engineering, School of Mechanical Engineering
publishDate 2008
url http://eprints.uthm.edu.my/7089/1/24p%20NURHAFIZZAH%20HASSAN.pdf
_version_ 1747831110234013696