Abstract: A process is described for the production of superconducting conductors of the type comprising a plurality of filaments of an alloy containing niobium and titanium as base materials and a composite matrix of copper, aluminium or alloys of these elements, in which the filaments are disposed, and which serves to stabilize the superconductor; the process includes at least a first phase of preparing a first superconducting conductor comprising:the said filaments and a first matrix of copper, aluminum or alloys of these elements;a second phase of preparing a strip of copper, aluminum or alloys of these elements of width substantially equal to the perimeter of the section of the said first superconducting conductor;a third phase of depositing a layer of brazing material on the outer surface of the said first superconducting conductor and at least on one of the surfaces of the said strip;a fourth phase of connecting the said first superconducting conductor with the said strip and for shaping the strip itself by plas

Abstract: The apparatus of the invention is characterized by comprising a die through which the end of the tube is passed in order to form the point, and which is provided with a first substantially cylindrical bore of diameter less than the diameter of said tube, a substantially conical second bore coaxial with the preceding and of which the minimum diameter is equal to the diameter of said first bore and the maximum diameter is greater than the diameter of the tube, and at least three revolving bodies disposed in corresponding seats of said die, each of which projects radially to a predetermined extent from the surface of said second bore towards the axis of the bore itself, and drive means arranged to axially move said die relative to said tube in order to bring the end of the tube inside said first and second bore and into cooperation with said revolving bodies.