Forming method of large-diameter functional gradient thin-wall circular ring part based on double-roller rotary forging

Abstract

The invention relates to a forming method of a large-diameter functional gradient thin-wall circular ring part based on double-roller rotary forging. The forming method of the large-diameter functional gradient thin-wall circular ring part based on double-roller rotary forging comprises the following steps: S1, a semi-finished product is prepared, and packaging treatment is carried out by adopting vacuum electron beam welding; S2, semi-finished product positioning is carried out, a composite circular ring piece obtained after seal welding is placed in a heating furnace to be heated to a forging temperature interval, and after heat preservation is conducted for a period of time, the composite circular ring piece is rapidly transferred to a positioning column of a lower die of forming equipment; S3, the semi-finished product is formed under double-cone roller rotary forging; S4, finished product preparation is completed, specifically, after the blank is formed to a target height, the lower die stops feeding upwards, the double-cone roller continues to revolve, and therefore uneven parts caused in the surface forming process of the composite circular ring disappear in the machining process; and S5, the interface of the composite circular ring piece is healed. According to the invention, large-diameter thin-wall functional gradient circular ring parts made of different materials and with different thicknesses can be formed; the mechanical property of the formed composite circular ring part at the interface is excellent; and meanwhile, the forming method of the large-diameter functional gradient thin-wall circular ring part based on double-roller rotary forging has the advantages that the labor is saved, the surface quality of the formed part is good and the like.

Description

technical field [0001] The invention relates to the field of forming functionally graded circular ring parts, more specifically, to a forming method of large-diameter functionally graded thin-walled circular ring parts based on double-roller swinging. Background technique [0002] With the advancement of science and technology and industrial development, people have higher and higher requirements for the performance of materials, especially in various fields such as aerospace, petrochemical, shipbuilding, electric power, and machinery manufacturing. Metal composite rings with gradient functions are not only It has the characteristics of wear resistance, corrosion resistance, oxidation resistance, and long service life. It also has excellent mechanical properties such as high impact toughness, high strength, and large resistance to deformation. Its application is becoming more and more extensive. At the same time, in view of the low The perfect combination of cost and high pe...

AI Technical Summary

Problems solved by technology

Moreover, some traditional composite metal ring manufacturing methods, such as explosive welding method, brazing connection method, rolling composite plate reprocessing, etc., often have problems such as low connection interface strength, long composite manufacturing process, and complicated manufacturing process.

[0003] At present, there is no good forming method for large-diameter thin-walled metal composite ring parts with gradient function, especially composite parts with better structure and performance at the interface

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