Hard turning

B - Operations – Transporting – 23 – B

Patent

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Details

B23B 1/00 (2006.01) G05B 19/18 (2006.01) G05B 19/416 (2006.01)

Patent

CA 2374058

A metal machining process, in particular hard turning using a computer controlled precision lathe, comprises the step of controlling the tool to increase the depth of cut at intervals during machining, so as to create a plurality of depressions (12 to 16). As applied to a synchromesh cone (10), for example, the depressions may typically be annular and 1 micron in depth, with a base width of 0.16 mm and spaced at 1.0 mm along the taper. The process enables components to be produced whose surface is similar to that of ground components.

Ce procédé d'usinage de métal, notamment un travail au tour, utilisant un tour à précision commandée par ordinateur, consiste à commander l'outil de manière à augmenter la profondeur de coupe à des intervalles donnés lors de l'usinage et ce, afin de ménager plusieurs évidements (12 à 16). Du fait qu'ils sont appliqués à un cône de synchronisation (10), par exemple, les évidements peuvent, généralement, être annulaires et mesurer un micromètre de profondeur avec une largeur à la base de 0,16 mm tout en étant espacés de 1,0 mm le long du cône. Ce procédé permet de produire des composants dont la surface est semblable à celle de composants meulés.

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