Invention Grant
US07320565B2 Edge-carrying drill, method for the manufacture of the drill, and drilling tool comprising such a drill 有权
承载钻头,钻头的制造方法和包括这种钻头的钻具

Edge-carrying drill, method for the manufacture of the drill, and drilling tool comprising such a drill
Abstract:
In a first aspect, the invention relates to an edge-carrying drill body (1) of the type that is intended for deep hole drilling, and which is rotatable around a geometric axis (C) as well as comprises a through channel (2) arranged for internal chip evacuation, which channel mouths in front and rear ends of the body. Characteristic of the invention is that one or more cutting edges (4) are made integrally with the rest of the body, more precisely from a hard material, such as cemented carbide or CERMET. In a second aspect, the invention also relates to a method for the manufacture of such a drill body. In a third aspect, the invention furthermore relates to a drilling tool for deep hole drilling.
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