Method of preparing high fatigue strength aluminum alloy

Details Method of preparing high fatigue strength aluminum alloy Method of preparing high fatigue strength aluminum alloy

1975-01-29

1976-03-16

Dean, R.

Metal treatment

Compositions

Heat treating

148 115A, C22F 104

Patent

active

039444392

ABSTRACT:
The present invention consists of an aluminum alloy having a high fatigue strength which is particularly suited for use in the fabrication of printing plates for offset lithography. The alloy contains from 0.2 to 0.75% magnesium, from 0.45 to 0.7% copper, from 0.1 to 0.7% iron and up to 0.3% silicon. The alloy, when processed according to the process of the present invention possesses a uniquely high fatigue strength.

REFERENCES:
patent: 3661657 (1972-05-01), Wong

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