Process for manufacturing a light alloy wheel rim and wheel...

Details Process for manufacturing a light alloy wheel rim and wheel... Process for manufacturing a light alloy wheel rim and wheel...

2004-04-23

2011-11-01

Bryant, David (Department: 3726)

Metal working

Method of mechanical manufacture

Combined manufacture including applying or shaping of fluent...

C029S527500, C029S557000, C029S894350, C029S894320

Reexamination Certificate

active

08046900

ABSTRACT:
Process (20) for manufacturing a wheel rim (1) in light alloy including the following operations: providing (21) a rough wheel rim in light ally, comprising a wheel disc (2) and an annular portion (3), the annular portion (3) including a first (4I) and a second (4e) bead defining a drop well (C) having a first profile; processing (23) the rough wheel rim, modifying the first profile in order to obtain a second profile being of a lower thickness than the first profile, at least at an intermediate portion (C1) of the drop well (C), characterized by including a finishing operation (25) of a surface of the second profile intermediate portion by means of a compression action of said surface, the finishing operation leaving the low thickness substantially unchanged.

REFERENCES:
patent: 1792051 (1931-02-01), Valentine
patent: 2977669 (1961-04-01), Chambers
patent: 5361493 (1994-11-01), Baldi
patent: 6244668 (2001-06-01), Hale, Jr. et al.
patent: 2002/0003373 (2002-01-01), Hale, Jr. et al.
patent: WO 98/47723 (1998-10-01), None
“Burnishing” eFunda from Sep. 29, 2009.
International Search Report dated Jan. 24, 2005 for International Patent Application No. PCT/IT2004/000230.

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