Process for the forming of metal alloy wheel rims

Details Process for the forming of metal alloy wheel rims Process for the forming of metal alloy wheel rims

1996-09-23

1998-06-30

Simmons, David A.

Metal treatment

Process of modifying or maintaining internal physical...

With casting or solidifying from melt

148583, 148552, 148549, 148538, 148437, 301 65, C22F 100, B60B 2100

Patent

active

057728011

ABSTRACT:
In a process for the forming of wheel rims in metal alloy, a cast blank undergoes a cold chip removal process by cutting its central area, its inner surface and its lateral surface in order to obtain a semi-finished work which is then heated and plastically deformed by flow forming along its lateral surface to obtain an inner edge, an outer edge and a middle portion with a defined machine allowance; the rim thus obtained undergoes another cold chip removal process by cutting in order to work it down to the required size; the latter process may be preceded by solution and age hardening heat treatments.

REFERENCES:
patent: 4579604 (1986-04-01), Beyer
patent: 4624038 (1986-11-01), Walther
patent: 5409555 (1995-04-01), Fujita et al.

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