Method and apparatus for honing an elongate rotary tool

Details Method and apparatus for honing an elongate rotary tool Method and apparatus for honing an elongate rotary tool

B - Operations, Transporting

24

B

B24B 3/24 (2006.01)

Patent

CA 2247078

A method of, and apparatus for, treating an elongate rotary tool (22) that presents a sharp cutting edge (30) are described. The method includes the steps of emitting under pressure from a nozzle (60) an abrasive fluid stream comprising an abrasive grit entrained in a fluid; and impinging the abrasive fluid stream against the sharp cutting edge (30) of the elongate rotary tool (22) for a preselected time so as to transform the sharp cutting edge (30) into a relatively uniformly honed edge. The apparatus (50) includes a rotatable fixture (54) that releasably holds the elongate rotary tool (22). A nozzle (60) that emits under pressure an abrasive steam. The nozzle (60) and the elongate rotary tool (22) are relatively moveable so that the abrasive stream impinges the entire length of the sharp cutting edge (30).

La présente invention décrit un procédé et un appareil de traitement d'un outil rotatif long (22) avec tranchant (30). Le procédé comporte un certain nombre d'étapes, consistant à projeter sous pression, à l'aide d'une buse (60), un jet de liquide abrasif contenant des grains abrasifs entraînés; et à amener ledit jet de liquide à heurter le tranchant (30) de l'outil rotatif long (22), pendant une période prédéterminée, de manière à affûter relativement uniformément le tranchant (30). L'appareil (50) comporte un porte-outil rotatif (54) déverrouillable pour l'outil rotatif long (22). Une buse (60) projette sur l'outil un jet de liquide abrasif sous pression. Ladite buse (60) et l'outil rotatif long (22) peuvent se déplacer l'une par rapport à l'autre de sorte que le jet abrasif puisse heurter le tranchant (30) sur toute sa longueur.

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