Abstract: A rolling device for work pieces with toothing, in particular gear wheels, includes first and second shaping tools which are guided by a guide relative to the work pieces. With respect to the work pieces, a first region of a tooth flank is shaped with the first shaping tool and a second region of the tooth flank is shaped by the second shaping tool. The first and second shaping tools are respectively mounted on first and second rollers. The second roller has an axial thickness on the circumference, which differs from the axial thickness of the first roller such that the second region of the tooth flank is different from the first region.

Abstract: A brake disc tool for machining a brake disc blank is provided. The brake disc tool includes a first cutting tool which is arranged to cut a first brake surface of the brake disc blank, a second cutting tool which is arranged to cut a second brake surface of the brake disc blank, a first forming tool for forming the first brake surface, a second forming tool for forming the second brake surface, and at least one infeed device for the infeed of the cutting tools and the forming tools towards one another, such that a brake disc blank arranged between the cutting tools and the forming tools is able to be machined and rolled in each case simultaneously on both of its brake surfaces.

Abstract: A combined skiver and a smooth rolling tool with a skiver head and behind this a smooth rolling head, wherein between the skiver head and the rolling head an exclusive torque transmitting coupling is located which restricts the allowable axis shaft offset and/or the angular position of the axes of the rolling head and skiver head, to which the rolling head is connected, characterized in that the skiver head (2) is guided through a workpiece bore via a hydrostatic guideway.

Abstract: A fluidostatic tool with at least one rolling element uses a pressurized lubricant mist or aerosol to apply force against a metal workpiece surface that is flat, curved or cylindrical. The rolling element, such as a ball, is held within a tubular borehole of the tool and cushioned on the pressurized lubricant mist during machining of the metal surface. Viscosity of the lubricant mist increases and reduces friction between the ball and the metal surface as it exits the tool, thereby reducing or eliminating the need for other lubricants during the machining process. The pressure of the lubricant mist against the ball seals the borehole of the tool and prevents leakage of the pressurized lubricant mist when the tool is not engaged with a metal workpiece surface. The lubricant mist can be an oil-free lubricant or a mixture of oil-free lubricant and oil components.

Abstract: Method for producing a cylinder unit, with the steps: clamping the cylinder (44) to the workpiece clamping device (42) of a lathe (34), skiving the cylinder inner surface (62) of the cylinder (44) by means of a skiving tool (10), in particular by rotating the workpiece clamping device (42) such that a skived cylinder inner surface (62) is formed, smooth rolling the skived cylinder inner surface (62) by means of a smooth rolling tool (60), in particular by rotating the workpiece clamping device (42), and processing at least the front surface (64) of the cylinder unit, wherein the skiving, the smooth rolling and the processing at least of the front surface (64) are carried out in one setting.

Abstract: The invention relates to a material-removing machine tool, in particular a deep-hole drilling machine or lathe, having a workpiece holder (14) to holding a workpiece (30), a tool holder (16), a rotary drive (18), by means of which the tool holder (16) can be rotated relative to the workpiece holder (14), an adapter (20) which has a base (20) which is rotationally fixedly connected to the tool holder (16) and has a drive side facing the tool holder (16) and an output side facing away from the tool holder (16), an anti-rotation device (42) for preventing drill head (22) and adapter (20) from rotating relative to each other and a central, continuous channel (44), through which chips can be transported away counter to a machining direction (B) of the drill head (22), and a drill head (22) which is rotationally fixedly connected to the adapter (20).

Abstract: Previously known mechanical deep rolling tools share the feature that their rollers not only roll over the work piece but also over a counter roller on the tool side. This allows the deep rolling roller to swing to the side; but the roller material becomes fatigued relatively quickly. To achieve longer life, a rolling tool is suggested in which a working periphery is located in a work piece contact area spatially separated from a bearing contact area of the roller. A rolling tool with a hydraulically supported forming roller and a roller suitable therefor are also suggested.

Abstract: For rolling a workpiece with a rolling tool with several rolling elements arranged in hydrostatic bearings, during rolling, only some of the rolling elements engage the workpiece, while the rolling elements not engaging the workpiece essentially seal off the hydrostatic bearing. In such a rolling tool, the rolling elements are arranged so as to be distributed over an area, and each of the hydrostatic bearings includes a circumferential seal in the region of the rolling elements.

Abstract: In order to eliminate errors in roundness and the occurrence of helical waves, a skiving head is provided with at least three skiving blades arranged in a radially displaceable manner in the skiving head. With this skiving head, both the requirement for self-centering of the skiving blade set as well as the requirement for circular skiving geometry with consistent cutting depth are fulfilled.

Abstract: For rolling a workpiece with a rolling tool with several rolling elements arranged in hydrostatic bearings, during rolling, only some of the rolling elements engage the workpiece, while the rolling elements not engaging the workpiece essentially seal off the hydrostatic bearing. In such a rolling tool, the rolling elements are arranged so as to be distributed over an area, and each of the hydrostatic bearings includes a circumferential seal in the region of the rolling elements.

Abstract: In order to eliminate errors in roundness and the occurrence of helical waves, a skiving head is provided with at least three skiving blades arranged in a radially displaceable manner in the skiving head. With this skiving head, both the requirement for self-centering of the skiving blade set as well as the requirement for circular skiving geometry with consistent cutting depth are fulfilled.