Large ring semisolid manufacturing process using radial-axial rolling strain induction method
2014
Provided is a large ring semisolid manufacturing process using a radial-axial rolling strain induction method. Firstly, on the basis that alloy smelting is completed, a centrifugal casting technology is adopted for manufacturing a cast state ring body of a large ring; secondly, a radial-axial rolling technology is adopted for performing large-deformation plastic deformation and shape-correction treatment on the cast state ring body so that a distortion state blank of the large ring can be obtained; thirdly, secondary re-smelting is performed on the distortion state blank so that a thin and small non-dendritic-structure semisolid blank of the large ring can be obtained; fourthly, semisolid integral die forging forming is performed on the semisolid blank; finally, thermal treatment is performed after forging so that the large ring can be manufactured. The non-dendritic thin and small uniform spherical micro structure large ring can be manufactured through the manufacturing process, and the advantages that the process is simple, the material utilization rate is high and the mechanical property of the product is good are achieved.
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