PROCEDURE FOR THE MANUFACTURING OF RAW FORGINGS OF PISTON RODS

摘要

Manufacturing a forged rod of the type incorporating a head, a body and a foot comprises: (a) the fabrication of a forged blank rod (33) free from lateral burrs and incorporating, on its head and foot, at least one reaming scarf; and (b) the continuous calibration of the forged blank rod (33) by squashing the forged blank rod (33) between two inserts (57, 58) inside a die (55) to produce the final forged rod. Also claimed is a forged and trimmed rod fabricated by the above method.