Patent ID: 8904909

Claim:
A device ( 1 ) for machining by turning of rotationally symmetrical surfaces of a workpiece ( 10 ), comprising a rotating drive for the workpiece chucked thereto, rotation of the workpiece ( 10 ) creates a cutting speed of a cutting operation, a tool ( 12 ) having a cutting edge and with a feed for the tool, a feed speed of which is substantially lower than the cutting speed and by which the cutting edge ( 16 ) comes into engagement with the workpiece ( 10 ) at an active location travelling along the cutting edge ( 16 ), the tool ( 12 ) with the cutting edge ( 16 ) being arranged pivotably about a tool rotation axis (A 1 ), and the cutting edge ( 16 ) being oriented on the tool ( 12 ) such that the cutting edge ( 16 ) obliquely intersects an axial plane containing a tool rotation axis (A 1 ), the tool ( 12 ) having a second cutting edge ( 17 ) which is arranged and oriented so as to be offset to the first cutting edge ( 16 ) by an amount of a rotary angle about the tool rotation axis (A 1 ) and can be moved together with the first cutting edge ( 16 ) along a feed path (f), the first cutting edge ( 16 ), which is in front as seen in the feed direction of the tool ( 12 ), being a roughing cutting edge ( 17 ) and the second cutting edge being a smoothing cutting edge, an axial width (b) of the cutting edges ( 16 , 17 ) is equal to a width ( 1 ) of a surface ( 18 , 20 , 22 ) machined by the cutting edges ( 16 , 17 ), and the feed of the tool ( 12 ) is set up for executing a compensating movement of the tool ( 12 ), superposed on the pivoting movement of the tool ( 12 ) about the tool rotation axis (A 1 ) and oriented radially to the tool rotation axis (A 1 ) or to a workpiece rotation axis (A 2 ), for turning free of turning marks.