Deterministic magnetorheological finishing

B - Operations – Transporting – 24 – B

Patent

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Details

B24B 31/112 (2006.01) B24B 1/00 (2006.01) B24B 9/14 (2006.01) C09G 1/02 (2006.01) C09K 3/14 (2006.01) H01F 1/44 (2006.01)

Patent

CA 2234761

Method and apparatus (10) for finishing a workpiece surface using magnetorheological fluid (16) wherein the workpiece (26) is positioned near a carrier surface (14) such that a converging gap (22) is defined between the workpiece surface and the carrier surface (14); a magnetic field is applied at the gap (22); a flow of magnetorheological fluid (16) is introduced into the gap (22) creatign a work zone in the fluid (16) to form a transient finishing tool for engaging and causing material removal at the workpiece surface.

Cette invention concerne un procédé et un appareil (10) permettant la finition d'une pièce à travailler au moyen d'un fluide magnétorhéologique (16). Ledit procédé consite à positionner la pièce à travailler (26) à proximité d'une surface transporteuse (14) de façon à ce qu'un espace convergent (22) soit défini entre une partie de la pièce à travailler et la surface transporteuse (14), à appliquer un champ magnétique sensiblement au niveau dudit espace (22), à introduire un flux de fluide magnétorhéologique (16) rigidifié à l'intérieur dudit espace convergent (22) de façon à ce qu'une zone de travail soit créée au sein du fluide magnétorhéologique (16) pour constituer un outil de finition transitoire servant à l'accouplement et l'extraction de matière au niveau de la surface de la pièce à travailler.

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