Process and plant for the manufacture of reinforcing bars for profiled elements for window/door frames

Plant for the manufacture of reinforcing bars for profiled elements for window/door frames, wherein it comprises:

• holding means adapted to hold at least one first bar and one second bar made of at least one metallic material and extending along relevant longitudinal directions, each provided with a first ending surface and with a second ending surface substantially perpendicular to said relevant longitudinal direction;
• cutting means adapted to cut said first bar to obtain at least one reinforcing bar insertable inside a relevant profiled element for window/door frames and a relevant residual bar provided with said second ending surface;
• positioning means adapted to move each of said bars along at least one direction of forward movement (D) substantially parallel to the relevant longitudinal direction;
• retaining means adapted to retain said residual bar and said second bar aligned to each other with respect to said direction of forward movement (D), with said second ending surface of said residual bar facing the first ending surface of said second bar;
• resistance welding means adapted to butt weld said residual bar and said second bar by means of a current flow through said ending surfaces facing each other to obtain a welded bar.