Experimental and computational evaluation of a vibratory finishing process

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Navare, J. (2017). Experimental and computational evaluation of a vibratory finishing process. Unc Charlotte Electronic Theses And Dissertations.
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Abstract

Vibratory finishing is among the widely recognized mass finishing techniques which is used for cleaning, deburring, edge rounding, polishing, and creating an isotropic surface finish on metal parts that have undergone previous machining operations. Despite this process being straightforward and easy to implement at a very low cost and with a good degree of automation, an understanding of the basic mechanics of material removal and surface modification mechanism is lacking. In this work the potential of treating the media as a fluid is explored and a continuum mechanics based approach is taken to model the flow of media around a stationary workpiece in a computational fluid dynamics (CFD) environment. Important aspects of CFD model design and analysis are discussed and CFD derived pressure and velocity distributions are used to explain the variations in surface finishes obtained on two aluminum workpieces that were subjected to different media flow conditions. The results outlined in this thesis demonstrate the potential of using a CFD modeling approach to predict the process outcomes, while also providing a solid foundation for further modeling efforts.

Details
Author

Navare, Jayesh

Title

Experimental and computational evaluation of a vibratory finishing process

Physical Description

1 online resource (106 pages) : PDF

Date

2017

Degree Granting Institution

University of North Carolina at Charlotte

Abstract

Vibratory finishing is among the widely recognized mass finishing techniques which is used for cleaning, deburring, edge rounding, polishing, and creating an isotropic surface finish on metal parts that have undergone previous machining operations. Despite this process being straightforward and easy to implement at a very low cost and with a good degree of automation, an understanding of the basic mechanics of material removal and surface modification mechanism is lacking. In this work the potential of treating the media as a fluid is explored and a continuum mechanics based approach is taken to model the flow of media around a stationary workpiece in a computational fluid dynamics (CFD) environment. Important aspects of CFD model design and analysis are discussed and CFD derived pressure and velocity distributions are used to explain the variations in surface finishes obtained on two aluminum workpieces that were subjected to different media flow conditions. The results outlined in this thesis demonstrate the potential of using a CFD modeling approach to predict the process outcomes, while also providing a solid foundation for further modeling efforts.

Genre

masters theses

Subjects--Topics

Mechanical engineering

Degree

M.S.

Keywords

Computational Fluid Dynamics
Finishing
Modelling
Vibratory Finishing

Subject Area

Mechanical Engineering

Advisor(s)

Mullany, Brigid

Committee Members

Keanini, Russell
Tkacik, Peter
Suleski, Thomas

Degree Note

Thesis (M.S.)--University of North Carolina at Charlotte, 2017.

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Rights Holder Information

Copyright is held by the author unless otherwise indicated.

Identifier

Navare_uncc_0694N_11401

Permalink

http://hdl.handle.net/20.500.13093/etd:164