Draw-spinning of integral vehicle wheel rim and disc segments

Details Draw-spinning of integral vehicle wheel rim and disc segments Draw-spinning of integral vehicle wheel rim and disc segments

B - Operations, Transporting

21

D

113/2

B21D 22/16 (2006.01) B21D 53/30 (2006.01) B60B 3/04 (2006.01)

Patent

CA 1247460

Abstract of the Disclosure A method of forming a one-piece vehicle wheel disc and rim segment from a circular blank which includes the steps of clamping the circular blank in a spinning chuck having a mandrel with an outer surface that corresponds to the final desired geometric contour of the rim portion of the disc and rim segment. The periphery of tile circular blank is then subjected to a draw spinning operation wherein a first spinning roller is cycled through a number of passes across the blank while the blank is spun by the chuck, and with the drawn portion of the blank being spaced from and unsupported by the mandrel surface.

476528

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