Abstract: The invention relates to an end mill (1) for processing a bearing region of a crankshaft, in particular a crankshaft of a ship's engine, with a base body (2) with an end face (3) and several inserts (4) designed for a turn milling, which are arranged on or in the end face (3). In order to achieve favorable chip removal conditions with low cutting forces and thus a low tool load, it is provided according to the invention that the inserts (4) each have at least one cutting edge which comprises alternately active cutting regions and non-active cutting regions.

Abstract: An indexable insert for a milling tool that includes at least one mounting surface having a through bore for fixing the insert to a rotatable tool, a rounded cutting edge defined by at least one cutting face and a lateral surface, and the at least one cutting face being arranged on a lateral side of the insert and extending from a base. The base is angled with respect to the at least one mounting surface. This abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.

Abstract: The invention relates to an indexable insert for a milling tool. Furthermore, the invention relates to a milling tool, in particular for machining crankshafts or camshafts. In order to create a milling tool, in particular for machining crankshafts and camshafts, which runs smoothly with reduced drive power consumption at a high cutting capacity, it is provided according to the invention that the indexable insert (1) used has at least on one side a centrically symmetrical cutting edge contour (4, 4?), wherein in plan view the cutting face (2, 2?) has a concave wedge shape or trough shape with an angle ? of the wedge base or trough base (21) to the mounting surface (3, 3?) and on the opening side of the angle ? the cutting edge (4, 4?) formed by the mounting surface or lateral surface (3, 3?) and the cutting face (2, 2?) is rounded.

Abstract: A method of centering and thus balancing workpieces to be machined only in part comprises a provision of centering bores in and faces of the workpiece and/or a circular machining of peripheral surfaces on which the workpiece is adapted to the gripped. Before the workpiece is machined it is repositioned so that the rotary unbalance of the workpiece is reduced in that the position and/or mass distribution of the workpiece relative to its axis of rotation is changed. The workpiece is subsequently provided with the centering bores and/or with the surfaces to be gripped, which define the balanced and centered position of the workpiece and the associated axis of rotation.

Abstract: A clamping device (5) is provided, which serves to fix a rotarty cutter (3, 3a) to a toolholder (2, 2a). The rotary cutter (3, 3a) has a planar radial contacting surface (15, 15a) for engaging a planar radial end face (16, 16a) of the toolholder. Load-applying means (7, 8a) are provided for forcing the rotary cutter by means of a conical interface (13) against the toolholder (2). In order to provide a simple clamping device by which the rotary cutter is secured to the toolholder exactly in a desired position, the load-applying means (7, 7a) engage clamping means (6, 6a), which define the conical interface (13) with the rotary cutter (3, 3a) and which are supported on the toolholder (2, 2a) at a cylinder interface (14) and are elastically deformed by the load-applying means.

Abstract: An inserted tooth cutter comprises a disc-shaped cutter body, which is provided at its periphery with an annular series of tooth holders, each of which is individually fixed and adapted to receive at least one platelike cutting tooth. In order to ensure that the tooth holders will be mounted in a stable position with an optimum utilization of space, each tooth holder is fixed by means which force the tooth holder against the cutter body in a generally radial direction and each tooth holder has at one end a shoulder-forming extension bearing on a mating extension of an adjacent tooth holder and has adjacent to the other end a bottom surface portion bearing on a mating surface of the cutter body.

Abstract: A disc-shaped cutter body (1; 101; 201) is provided with a multiplicity of tooth plates (4; 104; 204, 204a), which engage suitable backing and end-supporting surfaces (5, 6, 7; 105, 106, 107, 205, 205a, 206, 206a, 207, 207a) of tooth holders (3; 103; 203) inserted in recesses formed by radial grooves (2; 102; 202) in the cutter body. Each tooth plate is clamped between a tooth holder and a head portion (9; 109; 209a, 209b) of an elongated holding-back member (8; 108; 208), which has a foot portion (10; 110; 210) that is disposed in the recess of the cutter body and bears on said tooth holder.