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Title: Using a high-stiffness burnishing tool for increased dimensional and geometrical accuracies of openings
Authors: Tadic, Branko
Randjelovic, Sasa
Todorovic, Petar
Živković, Jelena
Kočović, Vladimir
Budak Igor
Vukelic, Djordje
Issue Date: 2016
Abstract: The paper investigates ball burnishing of openings. A special high-stiffness tool was designed for the purpose of experimentation, allowing the burnishing of 40-120 mm openings. Experiments were performed with aluminium alloy EN AW-6082 (AlMgSi1). The primary goal was to achieve dimensional and geometrical accuracy of the openings. Using a specially designed stiff tool, the openings were widened by 0.06 mm on average, while the roundness and cylindricity errors were drastically reduced, especially at greater ball penetration depths. In addition, the surface roughness was improved by 35%. FEM analysis was conducted to determine the stress field distribution in the workpiece, as well as to approximate the residual stresses after the ball burnishing. Considering the experimental results, further investigation should be directed towards the achievement of high dimensional and geometrical accuracies, as well as increased process productivity.
Type: article
DOI: 10.1016/j.precisioneng.2015.08.014
ISSN: 0141-6359
SCOPUS: 2-s2.0-84948713167
Appears in Collections:Faculty of Engineering, Kragujevac

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