Research on the Rolling Process of Rotational-type Components : 2nd Report, Profile-shaping Process in the Rolling of Some Rotational Components Having Functional Features such as Screw and Gears

概要

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By means of experimental rolling of screw-like and gear-like components, shapes which blank cylinders come to develop in a process are observed in detail and processes of forming their functional profiles are examined. In order to realize the characteristics of deformation, a method was taken in which experimental processes were examined comparatively by establishing a model process under some simple assumptions accepted as plausible. By this means, chief controlling factors of the process have been pointed out. A distortion observable in the cross-sectional figure of a workpiece is important. This distortion which affects considerably the forming of profile features cannot completely be represented by the proposed model. It is also important to realize that the material undergoes different cumulative amounts of reduction according to its peripheral position occupied when the rolling starts.
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