Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V.

Abb Daimler-benz Transportation (deutschland) Gmbh

Kistler Instrumente

Gunter Spur

Peter Wolfer

Eckart Uhlmann

Hans P Pfeifer

Klaus-Jurgen Benzinger

Jan C Siebert

Fritz Holger

Klaus Korner

Hartmut Mohr

Ulrich Rudolph

Wolfgang Schahl

Composite-material push-pull link bar for rail vehicles

A method and apparatus for topographic surface analysis including at least ne light source for radiating light, a first light-distributing surface of a first diffraction grating for receiving light from the at least one light source and for reflecting a first bundle of light under normal optical conditions and a second bundle of light formed by diffraction of the first order. A first optical stage is provided for projecting the first and second bundles from the first light-distributing surface in an optically conjugated form onto an object surface to be analyzed of a sample. Light representing the object surface is sharply projected via the first optical stage onto a second light-distributing surface of a second diffraction grating. A second optical stage projects diffracted bundles of light from the second light-distributing surface onto a detector which detects radiation and enables topographic analysis of the object surface.

Method and apparatus utilizing an optical stage for topographic surface

A device for measuring at least one force component during cutting operations on workpieces with machine tools, including a dynamometer with measuring elements, integrated in a base module of a modular toolholder so that it is directly engaged with the cutting tool. The base module may be combined with various clamping and mounting modules to allow adaptation to standardized clamping systems of different machine tools, and to standard tools. The integration of the dynamometer in the toolholder and the direct engagement between cutting tool and dynamometer gives a compact unit with only small or no force shunts, making possible precision measurements. The device is therefore suitable for, among other duties, calibrating existing monitoring sensors of machine tools and for comparative functional tests on different machine tools. Measuring and evaluation electronics may be integrated in the device, wholly or in part. Furthermore holes may be provided in the device for supplying coolant, and dynamometer connecting cables.

Device for measuring the cutting forces on machine tools

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Berlin, Germany

Gunter Spur