Drilling tool for machine tools and method for the production thereof
AssigneeKomet Group GmbH
InventorsHendrik Nitzsche, Gerhard Stolz, Hans Haidinger, Benno Spors
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Abstract
A drilling tool for machine tools has a drill body, a cutting head arranged on the front face of the drill body and a shaft arranged at the end thereof, wherein the drill body has two chip flutes, which are delimited at their flanks by ribs and a first chip flute of which is spirally curved. A second chip flute is not spiraled or is spirally curved with a pitch differing from the first chip flute, preferably running in the same direction of rotation.
Claims16
A drilling tool for machine tools having a drill body, a cutting head which is arranged thereon at an end, and a shank which is arranged thereon at an opposite end, wherein the drill body has two chip flutes, which are bounded on their flanks by ribs, of which a first chip flute is curved in a helical shape, and a second chip flute is curved in a helical shape with a pitch which differs from that of the first chip flute, wherein a first coolant channel is provided in a rib of the drill body, extends from the shank end to the cutting-head end of the drill body, and has an outlet opening at the cutting-head end, characterized in that a further coolant channel is formed in a further rib, extends from the shank end to the cutting-head end of the drill body and has an outlet opening at the cutting-head end, the first coolant channel is curved in a helical shape and the further coolant channel is curved in a helical shape with a different pitch from the first coolant channel.
Dependencies are inferred from the claim text.