The electro upsetting is a proceeding which allows the heating deformation of the metals. It's normally heated and deformed, realizing a "sphere" of material at forge temperature, an extremity of a metal bar, generally made of steel shapes.
The piece is therefore printed under a press which confers him the wished form. It's furthermore possible pressing again in the body of the bar rather than to the extremity and also realize upsetting in contained die, obtaining cylindrical forms destined to the mechanical manufacturing without stamp estimate.
The pressable bar diameters go from millimetre points to 140 and more, with powers which can reach the megawatt.