Abstract: A method for making a heat treated aluminum alloy article, including the steps of bonding insulation onto selected areas of the article with a bonding means for maintaining a bond during heating for solution heat treatment, solution heat treating the thus-insulated article, and, with the insulation still on the article, subjecting the solution heat treated article to a quench for maintaining precipitable components of the alloy in solution and, subsequent to the quench, age-hardening the article.

Abstract: Apparatus and a method of employment thereof for forging cylindrical shells of controlled interdimension wherein a single punch die mandrel and cushion cooperate at a single work station to subject a metal blank to high multi-axial stress sufficient to increase the ductility thereof and permit a completed article to be fabricated during a single continuous pass of the material through the die. Precise control of the interdimension of the desired part is maintained by means precisely shaping the material and maintaining engagement between the end face of the mandrel and the bottom of the work blank during the forging process.

Abstract: Improved terminal end configuration for composite multi-metallic extrusion billets providing a reservoir of cladding metal for the initially extrudable portions thereof by selective introduction of metal powders into discrete core and cladding cavities within a deformable shell followed by isostatic compaction thereof.