Aluminum automotive drive shaft

Details Aluminum automotive drive shaft Aluminum automotive drive shaft

2005-11-01

2005-11-01

Omgba, Essama (Department: 3726)

Metal working

Method of mechanical manufacture

Shaping by direct application of fluent pressure

C029S430000, C029S527700, C029S897200, C148S440000, C420S534000, C420S535000, C420S537000, C420S538000, C420S543000

Reexamination Certificate

active

06959476

ABSTRACT:
A method for producing aluminum drive shafts from molten aluminum alloy using a continuous caster to cast the alloy into a slab. The method comprises providing a molten aluminum alloy consisting essentially of 0.2 to 0.8 wt. % Si, 0.05 to 0.4 wt. % Cu, 0.45 to 1.2 wt. % Mg, 0.04 to 0.35 wt. % Cr, 0.7 wt. % max. Fe, 0.15 wt. % max. Mn, 0.25 wt. % max. Zn, 0.15 wt. % max. Ti, the remainder aluminum, incidental elements and impurities and providing a continuous caster such as a belt caster for continuously casting the molten aluminum alloy. The molten aluminum alloy is cast into a slab which is rolled into a sheet product. After solution heat treatment, the sheet product is formed into a tube having a seam which is welded to provide a seam welded tube. The seam welded tube is placed in a forming die and hydroformed to form the drive shaft.

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