Kennametal Inc.

Marcus Paul

Herbert Rudolf Kauper

Josef Konrad Herud

Michael Hacker

Xaver Spichtinger

Karl Heinz Wendt

Tilo Krieg

Bernhard Eckl

Thomas Bobos

The combination tool (), in particular a drilling/chamfering tool, comprises a drill () extending in the longitudinal direction () with a clamping sleeve (), which is designed to receive the drill () and fasten the drill () at a variable length and which has a holding seat () for a cutting insert (). The drill () comprises a cutting region () provided with grooves (), wherein the grooves () extend helically and are formed between two grooves () drill backs (). At least one of the drill backs () is partially flattened to form an adjustment surface () for the cutting insert (), wherein the adjustment surface () extends helically. As a result, a length adjustment over a large length range is made possible independently of the twist angle (γ).

Combination tool as well as drills for such a drilling/chamfering tool

Propeller wrench

An improved adapter sleeve is submitted which has a shank for insertion into a toolholder for a machine tool, wherein a tool socket for holding a tool is formed in the shank, wherein a number of slots are disposed along the shank so that the shank can be compressed during clamping, wherein a cutting head is formed which is arranged on a front side (F) of the shank. In one embodiment, the cutting head has an insert seat for a cutting insert.

Adapter sleeve

A cutting tool () is specified with a cutting region () that comprises a substrate () onto which a coating () is applied, which coating () is subsequently processed, whereby a sharp cutting edge () is formed. Furthermore, a corresponding method for the manufacture of the cutting tool () is specified. By means of the sharpening of the cutting edge () after the coating rather than before, a particularly sharp cutting edge () is formed, whereby the precision of the cutting tool () as well as its service life is improved.

Cutting tool and method for its manufacture

A setting system () for a tool () is described, and in particular for a rotary metal working tool, wherein the setting system () aligns at least one insert () of the tool (). The setting system () comprises an adjusting unit (), which cooperates with the insert (), and actuating device (), which includes at least one electric actuator () exerting an adjusting force on the adjusting unit (). Furthermore, a tool () is described.

Setting system and tool

An expandable reamer includes a shank portion, a cutting portion extending from the shank portion, and a tapered pin capable of being at least partially received in the cutting portion. The cutting portion includes a plurality of blades separated by flutes, and a tapered inner surface with threads. The tapered pin includes a tapered outer surface with threads and causes expansion or contraction of the cutting portion when the tapered pin is screwed or unscrewed into the cutting portion. In one embodiment, a coolant channel extends from a coolant cavity through a wall of the cutting portion to provide fluid to the blades during machining of through-holes. In another embodiment, the tapered pin includes a coolant passage in fluid communication with the coolant cavity to provide fluid to the blades during machining of blind holes.

Growing community of inventors

Nuremberg, Germany

Marcus Paul