Abstract: The invention relates to a method for fine-machining a bore of a plurality of workpieces and a machine tool unit. According to said method, the workpieces are subjected to fine-hole drilling and precision finishing, preferably roller-burnishing or smoothing, a post-processing measurement is carried out and, depending on said measurement, the fine-hole drilling tool is adjusted.

Abstract: Disclosed is a rolling tool which serves for working—in particular rolling smooth—an inner lateral surface of a cylindrical clearance. For this purpose, the rolling tool has at least one rolling body, which is held in the rotatably drivable rolling tool, and can be taken along by said tool on a peripheral path along the inner lateral surface. The at least one rolling body is inserted into a radial clearance in the rolling tool and can be subjected to a pressurized fluid from the inside to the outside along the radial clearance. The fluid is an aerosol. The aerosol is a fluid mixed with gas and serves for hydrostatic bearing and lubrication.

Abstract: A method and a device for fracture separation of a workpiece and a workpiece fracture-separated by the method in accordance with the invention or with the device in accordance with the invention are disclosed. According to the invention, at a distance from a fracture separating notch at least one fracture directing notch is formed, which plays a part in determining the path followed by the fracture separating plane. The device for the fracture separation of the workpiece has a laser unit for forming the fracture separating notch and a mechanical machining unit for forming the fracture directing notch.

Abstract: The invention relates to a method for fracture splitting workpieces and to a workpiece that is produced according to such a method. According to the invention, the feed rate and/or the laser pulse is modulated during the laser machining process dependent on the workpiece geometry and/or the laser power.

Abstract: Disclosed is a rolling tool which serves for working—in particular rolling smooth—an inner lateral surface of a cylindrical clearance. For this purpose, the rolling tool has at least one rolling body, which is held in the rotatably drivable rolling tool, and can he taken along by said tool on a peripheral path along the inner lateral surface. The at least one rolling body is inserted into a radial clearance in the rolling tool and can he subjected to a pressurized fluid from the inside to the outside along the radial clearance. The fluid is an aerosol. The aerosol is a fluid mixed with gas and serves for hydrostatic bearing and lubrication.

Abstract: A method for separating a bearing channel of a housing by cracking. The bearing covers of the bearing channel are separated from the housing by cracking by means of a cracking mandrel. The steps include clamping the housing at the top thereof so that the bearing channel is downwardly oriented, i.e., towards a supporting or clamping surface of the housing and supporting the bearing cover during separation by cracking by means of a counter bracket.

Abstract: The invention relates to a method and a smoothing tool for finishing surfaces as well as a workpiece that is machined by smoothing. In accordance with the invention, the surface that is to be machined is smoothed by a shaping process with the aid of a convex smoothing tool.

Abstract: A method for separating a bearing channel of a housing by cracking. The bearing covers of the bearing channel are separated from the housing by cracking by means of a cracking mandrel. The steps include clamping the housing at the top thereof so that the bearing channel is downwardly oriented, i.e., towards a supporting or clamping surface of the housing and supporting the bearing cover during separation by cracking by means of a counter bracket.

Abstract: A capacitance length and/or angle measuring device has a transducer comprising a stationary part (1) forming a scale and a part (2) displaceable parallel over the surface of the scale, at a short distance therefrom and acting as a sensing unit. The opposite surfaces of the scale and sensing unit are provided with capacitor coatings (5,6,7,8,9). The mechanical quantity to be measured causes an area vibration of a capacitor, the capacitance variation resulting therefrom acting as a variable capacitive reactance in a circuit, which changes the phase position of the electrical signals. With an appropriate configuration of the capacitor surfaces one obtains a linear function between the mechanical quantity to be measured and the phase portion of the signals.

Abstract: A height measuring device comprises a carriage containing a measuring pin which is moved by a drive motor against an article to be measured in a manner such that the measuring takes place when the pin is held against the article with a precise measuring force. The construction includes a carriage which is supported by an endless belt and moved upwardly and downwardly by driving one of the rollers over which the belt is guided. A ram rod extends through a hollow area of the carriage which is divided by a ring piece into upper and lower chambers, the coil springs are placed around the ram rods in both the upper and lower chambers and are braced between the ring pieces at their one ends and the portion of the carriage which closes each end of the hollow portion of the carriage.

Abstract: In a length measuring device with a measuring transducer system, the curve of two sinusoidal test signals is dependent on the longitudinal movement of the measuring transducer system. An interpolation circuit delivers two high-resolution rectangular pulse sequences F1, F2 corresponding to the interpolated sinusoidal voltages and offset by 90.degree., to an evaluating circuit. To achieve a high-resolution at low speeds of travel and a low-resolution at high speeds, two rectangular pulse sequences S1, S2 or G1, G2, offset by 90.degree. and giving a low-resolution, are additionally derived at the interpolation circuit. A control logic circuit 19 monitors the test voltages for attainment of a certain value of the longitudinal movement per unit time or speed of travel.

Abstract: A sliding caliper comprises a scale having a front end defining a measuring edge, a slide movable over the scale and having a readout display and a measuring tip depending from said scale and having an axis of symmetry passing through the measuring edge.

Abstract: A device for measuring the position of a member for example, the height thereof comprises a frame with a slide movable on said frame which carries a rigid measuring member. A motor is connected to drive the slide through a constant slip torque clutch connected between the motor and the slide. The clutch is a magnetic field clutch so that it urges the measuring member when it is in a measuring position against the object being measured so as to exert the measuring force thereon.