Cutting insert with helical geometry and holder therefor

Details Cutting insert with helical geometry and holder therefor Cutting insert with helical geometry and holder therefor

B - Operations, Transporting

23

B

B23B 51/00 (2006.01) B23D 77/00 (2006.01) B27G 15/00 (2006.01)

Patent

CA 2546058

A cutting tool insert and holder therefore, the drill insert having a helical geometry corresponding to helical flutes in a drill body holder which enable the drill tool assembly to more efficiently remove chips from a hole during operation, the drill insert comprising a drill insert body having a first end opposite a second end, a plurality of helical flutes formed in the drill insert body, a plurality of cutting edges formed at the interfaces of the plurality of helical flutes and the first end of the drill insert body, and an aperture formed in each helical flute.

L'invention concerne une plaquette d'outil de coupe et son support, la mise de perçage présentant une géométrie hélicoïdale se conjuguant avec des goujures hélicoïdales ménagées dans un support de corps de perçage et permettant à l'ensemble outil de perçage une évacuation plus efficace des copeaux provenant du trou en cours de perçage. Ladite mise de perçage comporte un corps possédant une première extrémité en regard d'une deuxième extrémité, une pluralité de goujures hélicoïdales pratiquées dans ledit corps, une pluralité de bords tranchants formés au niveau des interfaces de la pluralité de goujures hélicoïdales et de la première extrémité dudit corps, et un évidement ménagé dans chaque goujure hélicoïdale.

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