Abstract
Abstract High-strength steel asymmetric double-curvature thick plate curved parts are widely used in shipbuilding, nuclear power and other industries, but their accurate forming has been a challenge due to their high strength, large size, asymmetric structure and serious springback. In this paper, the simulation analysis study of spot press forming is carried out with large-size double-curvature spherical thick shells as the research object, and the effects of mould surface size, mould radius of curvature on the results of pressing and forming of asymmetric double-curvature curved thick plate parts made of high-strength steel are analyzed. The results show that the pressing route of pressing the centre of the slab first and then carrying out point pressing along the line of symmetry to the surroundings has the best forming effect. Different mould profile dimensions and radius of curvature of the profile have a great influence on the simulated forming results.
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