Rolling forming method of metal plate component

Abstract

The invention discloses a rolling forming method of a metal plate component. The rolling forming method comprises the steps that (1) a wall plate part of a machine body is unfolded into a flat plate structure, and one side of the part is provided with a step; (2) a metal plate blank is prepared according to the unfolded flat plate structure; (3) a padding structure is designed, and the padding structure and the metal plate blank are complementary structures; (4) an elastic padding plate is prepared according to the designed padding structure; (5) the metal plate blank and the elastic padding plate are assembled, and a combined plate blank is formed; (6) rolling parameters of the combined plate blank are determined; (7) the combined plate blank is subjected to numerical control rolling forming; and (8) the metal plate component is extracted. The rolling forming method has the advantages that the precise forming of the component in the great-step-ratio and variable thickness structure can be realized, in addition, the limitation of the thickness and the intensity of processed parts is avoided, meanwhile, the rolling forming method can be utilized for replacing the traditional manufacture method of carrying out chemical milling after forming on the wall plate part of the machine body, the manufacture precision of products is improved, and the environment pollution caused by the chemical milling is also avoided.

Description

Technical field [0001] The invention belongs to the technical field of sheet metal stamping and forming, and more specifically, relates to a method for roll forming a metal sheet member with a large step ratio and a variable thickness. Background technique [0002] With the development of my country's aviation manufacturing technology and people's attention to environmental protection, green manufacturing is challenging traditional manufacturing methods to avoid harmful health and environmental pollution. For this reason, it is an industry trend to replace traditional chemical milling with CNC milling methods. This has led to a fundamental change in the processing mode of variable thickness fuselage panels during component manufacturing, from the traditional "forming → chemical milling" to "Machine milling → forming". This change in processing mode has changed the traditional manufacturing method of heavy-polluting milling and promoted the application of advanced technology in a...

AI Technical Summary

Problems solved by technology

[0007] In order to study and solve the problem of precise forming of fuselage panel with large step ratio and variable thickness structure with large thickness or high strength, the present invention provides a rolling forming method of large step ratio variable thickness metal plate member

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