Research on springback compensation for multi-point forming of corrosion-resistant aluminum alloy hyperbolic component

Springback is the reverse elastic deformation produced by unloading process, which a common phenomenon in sheet metal stamping and forming process affects final accuracy of part. Aiming at problem springback error multi-point hyperbolic component for ships, was studied combining theoretical analysis, numerical simulation test. The mechanical property parameters stress-strain curves were obtained tensile tests using new corrosion-resistant aluminum alloy as material. compensation method introduced, formula based on surface curvature derived, compensated mold further corrected fitted cubic B-sample method. punch tooling generated modeled 3D modeling software MPFCAD finite element to simulate member. Multi-point conducted press component, formed parts checked analysis scanning GOM Inspect software. results show that used this paper can effectively reduce effect very good.