Abrasive Fluidized Bed (AFB) finishing of cobalt-chromium coatings is investigated. Cylindrical metal components coated by High Velocity Oxygen Fuel (HVOF) with Stellite 6 were machined, while rotating at high speed in a bed of suspended Al2O3 abrasives. The interaction between abrasives and coatings was analyzed varying the machining time, abrasive size and rotational speed. The morphology and dimensional stability of the machined parts was monitored by microscopy, profilometry and dimensional analysis. AFB is able to smoothen the morphology of the Stellite 6 coatings, preserving their dimensional accuracy. This makes AFB a promising technique in the reprocessing of hard coatings

Barletta, M., Guarino, S., Vesco, S., Gisario, A., Tagliaferri, V. (2013). Abrasive Fluidized Bed (AFB) finishing of thermally sprayed cobalt-chromium coatings. MANUFACTURING LETTERS, 1(1), 1-4 [10.1016/j.mfglet.2013.08.002].

Abrasive Fluidized Bed (AFB) finishing of thermally sprayed cobalt-chromium coatings

BARLETTA, MASSIMILIANO;GUARINO, STEFANO;Vesco, S;TAGLIAFERRI, VINCENZO
2013-10

Abstract

Abrasive Fluidized Bed (AFB) finishing of cobalt-chromium coatings is investigated. Cylindrical metal components coated by High Velocity Oxygen Fuel (HVOF) with Stellite 6 were machined, while rotating at high speed in a bed of suspended Al2O3 abrasives. The interaction between abrasives and coatings was analyzed varying the machining time, abrasive size and rotational speed. The morphology and dimensional stability of the machined parts was monitored by microscopy, profilometry and dimensional analysis. AFB is able to smoothen the morphology of the Stellite 6 coatings, preserving their dimensional accuracy. This makes AFB a promising technique in the reprocessing of hard coatings
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore ING-IND/16 - Tecnologie e Sistemi di Lavorazione
English
Con Impact Factor ISI
Fluidized bed; Finishing; Thermally sprayed coatings; Cobalt-chromium alloy
Barletta, M., Guarino, S., Vesco, S., Gisario, A., Tagliaferri, V. (2013). Abrasive Fluidized Bed (AFB) finishing of thermally sprayed cobalt-chromium coatings. MANUFACTURING LETTERS, 1(1), 1-4 [10.1016/j.mfglet.2013.08.002].
Barletta, M; Guarino, S; Vesco, S; Gisario, A; Tagliaferri, V
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2108/99731
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