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Aviation History
1951
1951 - 2323.PDF
12 FLIGHT 23 NOVEMBER ALMINAL ALUMINIUM-COPPER-CADMIUM ALLOYS' Jf In the new aluminium-copper-cadmium alloys, known as the Alminal FIVE HUNDRED series, high mechanical strength is combined with outstanding hot and cold-working properties, and freedom from age-hardening at room temperatures. This makes possible the production of high strength extrusions and forgings of an intricacy and thinness of section formerly associated only with low and medium strength aluminium alloys. In addition it permits the material to be stored for long periods in the solution treated condition and then formed by pressing, bending or other cold working processes, before subsequent artificial ageing, to develop the high mechanical properties. The use of this material, therefore, eliminates the necessity for carrying out solution treatment immediately before cold forming or for refrigerated storage of solution treated material. Other advantages possessed by Alminal FIVE HUNDRED include: exceptionally fine grain size in forgings and extrusions and remarkable uniformity of strength properties in the directions longitudinal and transverse to the grain flow. •Patents applied for. Technical data is available from ALMIN LTD - FARNHAM ROYAL - DUCKS • Tel: Farnham Common 595 ask
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