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Experimental investigation and modeling of fluidized bed assisted drag finishing according to the theory of localization of plastic deformation and energy absorption

Abstract

Drag finishing is a highly attractive finishing technology for ductile metals as it combines the features of loose abrasive technologies with the high automation level and control of metal cutting (machining) technologies. Fluidized bed assisted drag finishing provides the additional advantage to simplify the moving device of the workpiece. In addition, fluidization reduces the energy consumption necessary to move the workpiece through the abrasives, which, being taken in a fluid-like state, offer less resistance to the advancing workpiece. This technology was proved to ensure high-quality finishing of ductile metals like brass, whose surface can be easily processed to become mirror-like. Although experimental practice has allowed to raise significant knowledge in the field, the comprehension of the basic mechanisms involved during finishing process and theoretical modeling of the related material removal are still missing. The present work attempts to model the material removal during fluidized bed of ductile metals by combining the theory of localization of plastic deformation during abrasive–workpiece impacts with an energy absorption approach.

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Barletta, M., Rubino, G. & Valentini, P.P. Experimental investigation and modeling of fluidized bed assisted drag finishing according to the theory of localization of plastic deformation and energy absorption. Int J Adv Manuf Technol 77, 2165–2180 (2015). https://doi.org/10.1007/s00170-014-6620-y

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Keywords

  • Finishing
  • Abrasive
  • Morphology
  • Material removal
  • Modeling
  • Drag finishing
  • Fluidized bed