METHOD OF PRODUCING A WHEEL

DRIVE May 10, 2006
Source
A method of producing a light alloy wheel with a forging technique, aiming for producing the wheel having a large-diameter disk by use of a small-scale press device, comprising: heating an intermediate product (3) that is formed by casting or forging and has a discoid (3b) and a cylindrical thick wall (3c), which are to respectively become disk and rim at completion, to a plasticity temperature; then, rotating the intermediate product (3) with stopping of the rotating at interval of a predetermined angle; pressing at least a portion of the to-be disk part (3b) by moulds at time of said stopping, as to push out metal into recesses (2a) on the lower mould and to thereby form holes (4); repeating of such rotating, stopping and pressing as to give a pattern on whole of the to-be disk part; and further press processing and finish processing on the to-be disk and the to-be rim parts.

Discussion in the ATmosphere

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