Commonly used metal stamping materials

Material properties scope of beryllium copper BECU proportion: 8. 9 nonmagnetic, good electrical conductivity. After quenching treatment, better elasticity and strength of conductive shrapnel, terminals, micro switch plate SK proportion: 7. 9 the material hardness, tensile strength increases with the increase of carbon content, less ductility. After quenching, strength increase, but the material is easy to oxidize gasket, shrapnel, bracket phosphor bronze PB ratio: 8. 9 nonmagnetic, better elasticity, and corrosion resistance, but will lose strength under high temperature conductive shrapnel, terminals, impulse bearing tin SPTE proportion: 7. 85 anti magnetic wave, can direct soldering, less elastic. Tin plating surface, easy to rust protective films, shrapnel aluminum oxide AL proportion: 2. 75 light weight, corrosion resistance and better plastic processability. Electricity, heat transfer, high ground conductivity, heat sink, support proportion of SUS stainless steel plate: 7. Corrosion resistance, oxidation resistance, stainless body, excellent hardness strong shrapnel, stents, metal parts in the proportion of white brass NS: fatigue resistance, corrosion resistance, elastic moderate, good electrical conductivity, conduction pieces of galvanized iron SECC proportion: 7. 85 better ductility, galvanized surface treatment, but easy to scratch, and truncation surface rust easily general agency support proportion, PC shell, auto parts, cold rolled steel sheet (SPCC) : 7. 85 malleable better, moderate intensity, but the untreated surface rust easily under the general institutional support, auto parts, stamping engineering processing materials: a finished product type cutting punch: besides the aperture in the finished product, or product weight reduction design of any shape of the hole, a bending stamping moments: finished any Angle, forming action implied or local Angle: shaft hole, or material peripheral not broken convex type finished product state, the other to strengthen the strength of finished product: the role of molding finishing stage of finished motion secondary tapping processing: the production of various specifications screw tooth spot welding, riveting, main methods of connection accessories, increase the structural strength of finished product, or product design on the mold can't overcome, in such a way to complete the required finished heat treatment: to increase the hardness of material, material for carbon steel material is beryllium copper, with the different quenching temperature and tempering temperature, the processing of finished product hardness also different plating ─ ─ is the surface treatment, but the composition is conduction function tin plating: conduction, welding, anti magnetic wave nickel plating: conduction, surface treatment, rolling electricity: easy to cause the deformation of the finished product, defective rate is too high to mourn electric plating: single hook way, fully automatic process, electroplating for electroplating very direction, finished product will have different local mode after other painting, printing, degreasing, surface treatment