Thielenhaus Technologies Gmbh

Thomas Schmitz

Martin Lupp

Sebastian Goeke

Hans-Joachim Koerner

Siegfried Hesse

Sebastian Schumann

Derya Lenbet

The present invention relates to a method and a device for processing a hard-coated workpiece surface of a rotationally symmetrical workpiece () with at least one grinding wheel, wherein the method comprises the following steps:

Method and device for processing a hard-coated workpiece surface of a rotationally symmetrical workpiece

In a method for end processing a surface of a shaft-like workpiece, the following steps are performed in the following series, and the workpiece rotates about an axis of rotation: a) finishing the surface with a first finishing tool, b) machining the surface with a scoring tool, whereby the scoring tool produces at least one groove running in a circumferential direction, whereby the at least one groove produces 3 to 12 profiled gorges on a reference segment which reference segment has a length that is predetermined by a measuring method for roughness determination and which is extending on the surface parallel to the axis of rotation, each of said profiled gorges having a depth and width, whereby the ratio of the depth and width of each profiled gorge is greater than 2 and a distance between adjacent profiled gorges is substantially the same,c) machining the surface with the first finishing tool or a second finishing tool.

Method for producing grooves on a camshaft

A radially inwardly open raceway formed in a nut centered on a nut axis is machined by of oscillating the nut about the nut axis while pressing a tool secured in a holder radially outwardly into the raceway of the nut. The holder is moved parallel to the nut axis and oscillated about a tool axis perpendicular to the nut axis synchronously with the oscillation of the nut about the nut axis. Springs brace the tool against the holder parallel to the nut axis such that the tool can move limitedly in the holder against spring bias parallel to the tool axis.

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Wermelskirchen, Germany

Thomas Schmitz