Mechanistic Understanding of Material Detachment During Micro-Scale Polishing

[+] Author and Article Information
W. Che, Y. Guo, A. Chandra

Dept. of Mechanical Engineering, Iowa State University, Ames, IA 50011

A-F. Bastawros

Dept. of Aerospace Engineering and Engineering Mechanics, Iowa State University, Ames, IA 50011e-mail: bastaw@iastate.edu

J. Manuf. Sci. Eng 125(4), 731-735 (Nov 11, 2003) (5 pages) doi:10.1115/1.1619964 History: Received October 01, 2002; Revised June 01, 2003; Online November 11, 2003
Copyright © 2003 by ASME
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Experimental setup showing the rotational motion of the indenter relative to the specimen surface and the supporting two load cells with high control motion
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SEM image showing: (a) the intersecting scratches and (b) the details of the ploughing and shearing zones
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(a) Normal and tangential forces for the secondary scratch. (b) Details of the tangential force close to the intersection zone,“2” showing different force decay rates.
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Characteristic length variation with the scratch depth
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(a) FEM abrasive particle-surface interaction model. (b) Normal and tangential reaction forces on the abrasive particle, showing the start of force decay at a characteristic distance from the primary scratch.
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Schematic of scratch intersection



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