Partial Continuous Loading Forming Method for Large Disk Parts

Abstract

The invention relates to the technical field of machining formation, in particular to a local continuous-loading forming method for a large disc part. The local continuous-loading forming method comprises the following steps that a corresponding disc part preformed blank die and a disc part die are manufactured according to the disc part; a disc part preformed blank is formed, the degree of overall deformation of the blank in the disc part preformed blank forming process is 65%-70% that of the blank in the height direction, and the feed amount of equipment is reduced when 80% of blank deformation is completed till the disc part preformed blank is formed in the height direction; the disc part preformed blank and the disc part die are placed on axial closed grinding forming equipment for formation of the disc part; and edge cutting, heat treatment and machining are conducted on the formed disc part, so that the finished disc part is obtained. According to the local continuous-loading forming method for the large disc part, two different feeding amounts are adopted in the forming processes of the disc part preformed blank and the disc part, so that it is ensured that the phenomena of uniform metal formation, metal flow line disorder and poor metal structures are avoided in the forming processes of the disc part preformed blank and the disc part, and the performance of workpieces can be effectively improved.

Description

technical field [0001] The invention relates to the field of mechanical processing and forming, in particular to a local continuous loading forming method for a large disc. Background technique [0002] As the industrial demand continues to rise, more and more of its key parts adopt the overall structure design, the size of the disk parts is getting larger and the integrity is getting stronger and stronger. The materials used are also developing in the direction of difficult deformation, high strength, high toughness and high specific strength, and the improvement of its processing technology and equipment is an inevitable trend. Especially for aerospace engines, in order to reduce the number of connecting surfaces and seams, improve their reliability and the overall rigidity of the parts, the lifting parts adopt an integrated design scheme, with complex shapes, large sizes, and high precision. The requirements are extremely high, and the openness of the deep cavity is extr...

AI Technical Summary

Problems solved by technology

In the field of local continuous loading and labor-saving forming, it mainly refers to the forming process of axial closed rolling. For the forming process of small-sized discs in the axial closed rolling process, direct rolling can be used, but for When large disks are rolled and formed, the metal filling of large disks will be incomplete or there will be certain defects in the metal filling.

In the axial closed rolling process, the entire process generally adopts a linear feeding method, but for large-size discs, this feeding method causes a sudden drop in temperature, resulting in uneven metal forming, metal flow line disorder, and metallographic structure. extremely bad phenomenon

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