Kennametal Inc.

Heinrich Manner

Xaver Spichtinger

Armin Zimmermann

Michael Hacker

Uwe Hobohm

Sebastian Kunschir

Armin Josef Zimmerman

Bernhard Eckl

Wolfgang Lang

Rene Schwarznau

Werner Zitzmann

Ullrich Kirchhof

Christian Anton Spachtholz

Michaela Götz

Volker Fritsche

A reamer has a basic tool body made of hard metal () and a plate-like cutting insert () inserted into a recess () at the front. The cutting insert () is at least partially made of polycrystalline diamond, its cutting edges () situated axially offset relative to the cutting edges () on the basic tool body (), thus engaging with the workpiece later.

Reamer

A reaming tool includes a main tool body disposed about a rotational axis, a plurality of peripherally arranged cutting inserts coupled to the tool body, and a fine adjustment mechanism associated with each cutting insert. The adjustment mechanism includes an adjusting screw with a conical section that acts on the cutting insert for fine adjustment, the conical section being arranged between a first and a second cylindrical guide section. The two guide sections ensure high-precision guidance of the adjusting screw.

Reaming tool and adjusting screw for a fine adjustment mechanism, in particular for a reaming tool

The invention relates to a regulating element for a cutting member clamped in a tool seat of a cutting tool, comprising a cylindrical basic body, and an active surface impacting the cutting member at a face side when in a mounted state, having a contour deviating from the cylindrical shape at the cylinder sleeve of the basic body as anti-twist protection for the regulating element.

Regulating element

The milling cutter, in particular a round-head milling cutter, has a tool head, which extends along an axial direction and has a number of cutting teeth that each have a cutting edge. Chip flutes are located between each of the cutting teeth. The cutting teeth each have a front-side radial portion and a circumferential axial portion. The respective cutting edge and the chip flute are disposed such that they are inclined in opposite directions with respect to the axial direction such that the cutting tooth widens towards a foot region. In another embodiment, the tool head has two parts: a carrier part made of a tool steel, and a cutting part made of hard metal fastened to the carrier part. The milling cutter is distinguished by a long service life with a high cutting rate and a high quality of machining.

Milling cutter, especially a round-head milling cutter

A tool head () for a rotating tool () includes a basic body (), an annular portion () arranged on an end face on the basic body () and surrounds a cavity (), and an adjusting device () including an adjusting screw () with a shank () and an adjusting sleeve (). The shank () having a first shank portion () engaging a threaded bore () in the basic body (). The adjusting sleeve () is displaceable by the adjusting screw () and has a conical outer face () that interacts with an inner face () of the annular portion () in such a way that, when the adjusting screw () is being screwed into the threaded bore (), the annular portion () is spread open by the adjusting sleeve ().

Tool head for a rotating tool

A tool interface that is easy to produce but also precise, for coupling a tool head to a tool shank in a centered manner in respect of a shank axis, comprises a first interface part that is connected to the tool shank or to the tool head, and a second interface part that is connected to the respectively other tool part, namely, to the tool head or to the tool shank. The two interface parts have interface surfaces that substantially complement each other and are intended to bear flatly on each other. The interface surface of the first interface part comprises an inner cone surface and an outer cone surface, which surrounds the latter on the outside and coaxially. The interface surface of the second interface part comprises an outer cone surface, which corresponds with the inner cone surface of the first interface part, and an inner cone surface, which corresponds with the outer cone surface of the first interface part. In the case of a first invention variant, an annular web formed between the inner cone surface and the outer cone surface of the first interface part is slotted by at least one recess. In the case of a second invention variant, the second interface part has a central bore surrounded coaxially by its outer cone surface, an annular web formed between the outer cone surface and this bore being in this case slotted by at least one recess.

Tool interface

A milling cutter for machining work pieces, which comprises at least one cutting insert that can be adjusted by an adjusting element. The adjusting element is a one-piece element having an adjusting cone that extends between a screw head and a threaded shank. The adjusting cone engages with a recess provided in a lateral face of the cutting insert, which recess may also have a conical shape which substantially corresponds to the conical shape of the adjusting cone.

Growing community of inventors

Guteneck, Germany

Heinrich Manner