Process for the manufacture of a decorative aluminum product

Details Process for the manufacture of a decorative aluminum product Process for the manufacture of a decorative aluminum product

1973-12-28

1976-06-15

Andrews, R. L.

Chemistry: electrical and wave energy

Processes and products

204 35N, 204 36, 204 58, C25D 1116, C25D 1118

Patent

active

039635899

ABSTRACT:
The invention concerns a process for the manufacture of a decorative aluminum alloy product such as a watch case. In the first step, several aluminum sheets are united tightly into a stock by their overlapping and pressure-welding. The compacted stock is subjected to a forging step for agitating substantial part of the composite stock in its regularly laminated structure. Then, a watch case material is punched out from the composite stock which is further subjected to an anodically oxidizing step and a mirror finish step to provide the final product. The invention relates also the thus finished final product, having an attractive and contrasted flow design pattern on its exposed surface and in any section thereof.

REFERENCES:
patent: 2941282 (1960-06-01), Fromson
patent: 2941930 (1960-06-01), Mostovych et al.
patent: 3076706 (1963-02-01), Daugherty

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