Edge-carrying drill, method for the manufacture of the drill, and drilling tool comprising such a drill
AssigneeSandvik AB
InventorsAke Danielsson, Bengt Silver
Life of this patent
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Abstract
A deep hole drill is rotatable around a geometric axis and includes a body defining a through-channel arranged for internal chip evacuation. The channel opens in front and rear ends of the body. One or more cutting edges are made integrally with the rest of the body, more precisely from a hard material, such as cemented carbide or CERMET. A front bridge of the body extends across the front channel and possesses the integral cutting edge(s).
Claims20
A drill body defining a center axis of rotation and including an internal through-channel for chip evacuation, the through-channel including front and rear openings in the body, the body including at least one cutting edge integral therewith.
A method of the manufacture of a drill body defining a center axis of rotation and including an internal through-channel for chip evacuation, the through-channel including front and rear openings in the body, the method including forming the body with at least one cutting edge integral therewith.
A deep-hole drilling tool comprising:
- a drill body defining a center axis of rotation and including an internal through-channel for chip evacuation, the through-channel including front and rear openings in the body, the body including at least one cutting edge integral therewith, and
- a tube detachably connected to a rear end of the drill body.
Dependencies are inferred from the claim text.