Aluminum and light alloys (Conclusion)

Abstract

In the first part of these notes we dealt with light alloys intended for the production of castings. We will now consider, under the designation of light alloys for forging, those which, in order to acquire the shape of parts, are previously subjected to considerable hot deformations, or as the French say, "corrodes" or in English "wroughts". Several processes are used for this elaboration, such as the hammer, the press, the rolling mill, the ''extrusion'' process, etc. It is the most common material used in aircraft construction, as it is received in factories in the form of sheets, strips, bars, profiles, tubes, wires, etc., or in ingots to be shaped by stamping. Among these alloys we will find some whose breaking load approaches or exceeds 40 kg. per mm.2., generally designated "high strength light alloys".