Fracture Reason Analysis of Wire Drawing

Common causes and failure analysis procedure of wire drawing fracture were illuminated, and fracture mode had been divided into two types, one was crack initiation sites at surface of wire rod (including cord design, folding, crack on billet steel, subcutaneous bubble, inclusion and so on), the others at interior of hard wire (including inclusion, central shrinkage cavity, central martensite, central net carbide and so on), which explained by examples.