CONSTRAINED FILAMENT ELECTROLYTIC ANODE AND PROCESS OF FABRICATION
A process for forming a porous electrolytic compact by establishing multiple valve metal components in a billet (20) of a ductile metal. The composite billet is worked through a series of diameter reduction steps (22, 24, 30), to form the components into elongated elements, each element having a thickness less than 5 microns. The last diameter reduction step (32) is accomplished with the elements being surrounded by a confining layer of valve metal.