CORROSION RESISTANT PRECOATED LAMINATED STEEL

摘要

Two steel sheets joined face-to-face with a core layer form a laminated workpiece that may be shaped, for example, into automotive components. Depending on the nature of the core layer the laminated workpieces may be used for sound and vibration damping or as light weight structural panels. Before joining of the steel sheets, their facing surfaces may each be provided with a polymeric (organic or inorganic) corrosion resistant film that resists physical degradation such as tearing or scratching as the laminate is formed into a desired component shape. The pre-applied protective layer may also provide a bonding layer for the viscoelastic core or a structural core material. Conductive particles may be incorporated into the viscoelastic layer to assist in electrical resistance welding involving the laminated steel workpiece.