Abstract: An internal milling cutter for producing a recess terminating in a radius in a workpiece, in particular for milling a crankshaft, comprises a tool holder having interchangeable cutting inserts detachably attached thereto. For the production of the radius, a plurality of first interchangeable cutting inserts are provided, which are arranged one after another in the direction of cut and have cutting edges which produce complementary portions of the radius, wherein the first interchangeable cutting inserts for producing the radius are identically configured.

Abstract: The invention relates to a method for precision machining of crankshafts or camshafts to final dimensional tolerances Rz<10 ?m, preferably ?5 ?m and concentricity tolerances ?30 ?m, preferably ?6 ?m, which have been machined and at least partially subjected to hardening, wherein after the first machining has been carried out and subsequent hardening to 45 to 60 HRC, preferably 50 to 53 HRC, a final machining is carried out by means of at least one milling tool, wherein it is provided that the final machining is carried out by means of cutting inserts made of coated hard metal. The invention further relates to a milling tool for precision machining of crankshafts or camshafts by carrying out the method of the invention.

Abstract: An internal milling cutter for producing a recess terminating in a radius in a workpiece, in particular for milling a crankshaft, comprises a tool holder having interchangeable cutting inserts detachably attached thereto. For the production of the radius, a plurality of first interchangeable cutting inserts are provided, which are arranged one after another in the direction of cut and have cutting edges which produce complementary portions of the radius, wherein the first interchangeable cutting inserts for producing the radius are identically configured.

Abstract: The invention relates to a method for precision machining of crankshafts or camshafts to final dimensional tolerances Rz<10 ?m, preferably ?5 ?m and concentricity tolerances ?30 ?m, preferably ?6 ?m, which have been machined and at least partially subjected to hardening, wherein after the first machining has been carried out and subsequent hardening to 45 to 60 HRC, preferably 50 to 53 HRC, a final machining is carried out by means of at least one milling tool, wherein it is provided that the final machining is carried out by means of cutting inserts made of coated hard metal. The invention further relates to a milling tool for precision machining of crankshafts or camshafts.

Abstract: The invention relates to a cutting insert having an essentially parallelepiped-shaped basic body with two larger spaced-apart longitudinal surfaces (10,11) which are connected to one another by two smaller transverse surfaces (12, 13) and two smaller longitudinal surfaces (14) designed as rake faces, wherein the smaller longitudinal surfaces (14) form with the adjacent surfaces a respective, encircling, closed cutting line which forms the cutting edges and rounded-off cutting corners, and the larger longitudinal surface (10, 11) merges on both sides via respective rounded-off edges into the smaller transverse surface (12, 13), and one of the rounded-off cutting corners is designed so as to project relative to a basic shape which is determined by the cutting lines, on both sides, of the larger longitudinal surfaces (10, 11) with the smaller longitudinal surfaces (14).