Passenger car acoustics are becoming an increasingly important driver of high driving comfort for consumers. One of the main sources of unfavourable noise is the gearbox – even in new series of gearboxes, whose development and construction involves careful calculation of the gearing design. Adapting the component machining process at retrospectively is both time-consuming and expensive. But not with the gear honing machines including the innovative VarioSpeedDressing® Technology from PRÄWEMA Antriebstechnik, the world's market leader in the field of gear honing, based in Eschwege/Germany.

Gear honing, the world's leading technology used to optimise toothed surface of gearbox components is the last operation in the process chain of component machining before the gear wheel or the gear shaft is installed in the gearbox. In the past, short-term modifications to the geometry of geared components meant that if there were noise-related problems, a new dressing tool adapted to the gearing geometry had to be manufactured first. Due to the lead time required for such complex dressing tools, a delay in start of production had to be accepted.

Reacting fast and flexibly to gearing noise

With the development of the PRÄWEMA VarioSpeedDressing® technology, or VSD for short, modifications to the micro-geometry of the gearing can be carried out at short notice. Since the patented dressing tool, the VarioSpeedDresser®, only works with one cutting edge along the gearing, simple adaptation via the machine software is all it takes to adapt the micro-geometry of the honing ring to the component to be machined. Even the individual offset with exactly defined values which is becoming more and more important today can be created with similar ease and with the aid of the VarioSpeedDressers®.

DVS TOOLING: Tool solutions and technology support for PRÄWEMA gear honing

When honing tools are purchased there is no need for preliminary gearing, which causes additional costs, since even nonprofiled honing rings can be geared in the machining chamber as a matter of course. The experts at DVS TOOLING GmbH, another member of the DVS TECHNOLOGY GROUP, are on hand to provide innovative tool solutions and technological support for users of the PRÄWEMA gearing honing machines. Both PRÄWEMA ORIGINAL honing rings and genuine VarioSpeedDresser® tools are designed and implemented extremely precisely for the respective machining process by DVS TOOLING application engineers. At the respective production facilities, DVS TOOLING employees support users in order to further develop the demanding finishing machining process of gearing honing finetuned to customer requirements