Method of cutting and cutting rotative bit

Details Method of cutting and cutting rotative bit Method of cutting and cutting rotative bit

E - Fixed Constructions

21

C

E21C 35/18 (2006.01) E21C 35/183 (2006.01)

Patent

CA 2214047

A cutting, self-rotating, and self-sharpening tool has a rotatable cutting element (2), generally circular, which is mounted and displaced so that the cutting element (2) has an attack angle between 90° and 120°, and a skew angle between 5° and 40°. The cutting element (2) has a convex front face and relief and rake angles that vary along the perimeter of the cutting edge.

L'outil coupant décrit, auto-rotatif et auto-affûtant, est muni d'un élément de coupe rotatif (2), généralement circulaire, monté et positionné de façon à présenter un angle d'attaque de 90 DEG à 120 DEG et un angle d'inclinaison de 5 DEG à 40 DEG . L'élément de coupe (2) comporte une face avant convexe, et ses angles de dépouille et de coupe varient le long du périmètre de la lame.

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