Cutting segment for cutting tool and cutting tools

B - Operations – Transporting – 23 – D

Patent

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Details

B23D 61/02 (2006.01)

Patent

CA 2606204

The invention provides a cutting segment for a cutting tool for cutting or drilling a brittle work piece such as stone, bricks, concrete and asphalt, and a cutting tool having the cutting segment. The cutting segment includes a cutting surface for cutting a work piece and a plurality of abrasive particle layers. The abrasive particle layers are disposed perpendicular to a cutting direction. Each of the abrasive layers has a plurality of abrasive particle rows in a width direction of the cutting segment. Each of the abrasive rows has a plurality of abrasive particles arranged in a line. Further, the abrasive layers have a plurality of blank sections therebetween. In the blanks sections, abrasive particles are absent or have a concentration of 70% or less with respect to those in the abrasive rows. In addition, the blank sections include relatively thick blank sections and relatively thin blank sections.

La présente invention concerne un segment coupant destiné à couper ou forer une pièce friable telle qu'une pierre, des briques, du béton et de l'asphalte ainsi qu'un outil coupant comprenant ledit segment de découpe. Le segment de découpe comporte une surface coupante servant à couper une pièce et une pluralité de couches de particules abrasives. Les couches de particules abrasives sont disposées perpendiculairement à un sens de coupe. Chacune des couches abrasives est formée d'une pluralité de rangées de particules abrasives situées dans le sens de la largeur du segment de découpe. Chacune des rangées abrasives comprend une pluralité de particules abrasives disposées en ligne. Il existe en outre une pluralité de parties nues situées entre les couches abrasives. Dans les parties nues, les particules abrasives sont absentes ou présentent une concentration inférieure ou égale à 70 % par rapport à la concentration desdites particules abrasives dans les rangées abrasives. De plus, les parties nues comprennent des parties nues relativement épaisses et des parties nues relativement minces.

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