Reduce process chains due to the precision forging of gears-effect on the conventional forging technology

Institute for Metal forming and Metal-Forming Machine Tools (IFUM), University of Hanover, Hanover, Germany In the past, the range of parts of hot massive forming could, as a result of the technologically induced production tolerances, only seldom be extended to include workpieces with higher demands on accuracy. Due to a comprehensive cooperation between research and industry, the technology of precision forming, however, becomes more and more important in comparison with metal-cutting soft machining processes, as this technology may, with the same production accuracy and productivity, reduce the production costs. In the field of precision forming, the production of gearings takes on a main position due to the great market potential of geared parts. If the development of forming processes for the mass production of gears is successful, these may substitute machining which has up to now been predominant in this field.