Method for shaping aluminum wheel

Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator

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148 115A, B21K 132

Patent

active

046371125

ABSTRACT:
Described herein is a method for shaping aluminum wheels, which comprises the steps of: (A) supporting opposite rim portions of a cylindrical forging aluminum work substantially of H-shape in section by means of spinning dies, and subjecting the work to primary spinning including press-shaping by a work-stretching first spinning roller and preliminary spinning by a second spinning roller; (B) flaring the inner end of the rim; (C) annealing the work to remove the work-hardening resulting from the flaring operation; and (D) subjecting the work to secondary spinning including final spinning by the second spinning roller and corner R-finishing by a third spinning roller.

REFERENCES:
patent: 2736674 (1956-02-01), Harmon
patent: 3757413 (1973-09-01), Craik
patent: 4528734 (1985-07-01), Beyer

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