Title: Workpiece and media tracking in barrel finishing

Authors: Alberto Boschetto, Francesco Veniali

Addresses: Dipartimento di Meccanica e Aeronautica, Sapienza Universita di Roma, via Eudossiana 18, 00184 Roma, Italia. ' Dipartimento di Meccanica e Aeronautica, Sapienza Universita di Roma, via Eudossiana 18, 00184 Roma, Italia

Abstract: The 2D kinetics of the workpiece during barrel finishing operation is studied. A particle image tracking technique was applied to a transparent thin barrel in order to acquire the position of the part within granular flow in rolling regime. The use of industrial near shape media leads to an intrinsic difficulty to trace the part position. The achieved trajectories permit to calculate the active working time, part density distribution, the media velocity gradient and the workpiece to media velocity gradient. These information are useful to calculate the total sliding and to get information about strain stress over part in order to investigate operation efficiency.

Keywords: barrel finishing; particle tracking; digital image processing; granular material flow; dilatancy; shear stress; shear rate; total sliding; strain.

DOI: 10.1504/IJMMM.2009.027330

International Journal of Machining and Machinability of Materials, 2009 Vol.6 No.3/4, pp.305 - 321

Published online: 20 Jul 2009 *

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