Abstract: A method for producing a brazing wire consists of unwinding a solid metal or metal alloy wire, of circular or substantially circular cross-section and subjecting the wire to a stamping operation between rotating rollers, the periphery of which respectively having a die for receiving the full wire and a punch capable of deforming the wire and of generating a U-shaped cross-section across substantially the entire original diameter of the wire. The method also consists of filling the volume defined by the U using brazing flux or pickling flux in a powder or paste form and closing the arms of the U, after filling of the volume with the flux, one on top of the other with the end of one of the arms of the U overlapping the other. The method also consists of calibrating and shaping the resulting wire, according to the desired diameter and cross-section.