A Method for Controlling Creep Anisotropy of Cold-rolled Pre-deformed Alloy

Abstract

The invention provides a method for regulating and controlling the creep anisotropy of cold-rolled pre-deformed alloys. The method adopts non-equal cross-rolling to carry out two cold-rolls on the aluminum alloy plate, and through the The creep anisotropy is controlled by the ratio of deformation amount, which specifically includes: solid solution of the aluminum alloy sheet; water quenching of the aluminum alloy sheet after solid solution; two cold rolling of the water quenched aluminum alloy sheet, and then Perform creep age forming. The present invention adopts the method of non-equal cross rolling and can greatly reduce the creep aging anisotropy of the aluminum alloy material under the premise of maintaining a relatively high creep aging deformation efficiency of the aluminum alloy material. The operation method is simple and suitable for actual production applications. High-efficiency and high-precision forming and manufacturing of aluminum alloy components can be realized.

Description

A method for regulating the creep anisotropy of cold-rolled pre-deformed alloys technical field The present invention relates to the field of aluminum alloy processing, particularly a kind of control cold-rolled pre-deformed alloy creep anisotropy. method. Background technique Aluminum and aluminum alloys have the advantages of low density, high corrosion resistance, good electrical and thermal conductivity, and are widely used in aerospace. and rail transit. In order to meet the development needs of large-scale transportation equipment such as modern aerospace / high-speed rail, The components used in the next service put forward higher quality manufacturing requirements to achieve high performance, high precision and high performance of complex shape components. Integral structure manufacturing has become one of the key manufacturing technologies in the modern manufacturing field. Creep aging forming is to make the material in a certain An advanced forming techno...

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Problems solved by technology

In the process of creep aging deformation, creep deformation and precipitation strengthening occur at the same time. Due to the heterogeneity of the internal microstructure of the material, the anisotropy of creep strain and mechanical properties of the component will occur after creep aging deformation, increasing The difficulty of predicting and compensating springback after creep aging forming of components makes it a challenge to realize high-efficiency and high-precision forming and manufacturing of aluminum alloys with large deformation shapes

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