Cutting tip, method for making the cutting tip and cutting tool

Details Cutting tip, method for making the cutting tip and cutting tool Cutting tip, method for making the cutting tip and cutting tool

B - Operations, Transporting

23

D

B23D 61/02 (2006.01)

Patent

CA 2642620

The present invention relates to a cutting tip for a cutting tool, which is used in cutting or drilling a brittle workpiece such as stone, bricks, concrete, and asphalt and has an excellent cutting speed and a long lifetime, a method of manufacturing the cutting tip, and a cutting tool including the cutting tip. The cutting tip includes an abrasive material and a sintered bonding material, wherein the bonding material is formed of a metal matrix; the metal matrix includes a phase II and/or pore having a certain size at a certain volume fraction; and the phase II is one of a non-metallic inclusion and ceramic. According to an aspect of the present invention, there is provided a cutting tip having excellent cutting speed and a long lifetime at a much lower price.

La présente invention concerne une tête de coupe pour un outil de coupe, utilisé pour la découpe ou le forage d'une pièce à travailler fragile telle que la pierre, des briques, du béton, et de l'asphalte et possédant une excellente vitesse de coupe et une longue durée de vie; un procédé de fabrication de la tête de coupe, et un outil comportant la tête de coupe. La tête de coupe comporte un matériau abrasif et un matériau de liaison fritté, ledit matériau de liaison étant formé d'une matrice métallique; la matrice métallique comporte une phase II et/ou de pores ayant une certaine taille à une certaine fraction volumique; et la phase II est une inclusion non métallique ou céramique. Selon la présente invention, il est prévu une tête de coupe possédant une excellente vitesse de coupe et une longue durée de vie à un prix nettement plus bas.

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