An extrusion method for controlling the texture of magnesium alloy sheets by using the surface interface structure

A technology of interface structure and extrusion method, applied in the field of magnesium alloy sheet, regulating the texture of magnesium alloy extruded sheet, can solve the problems of reducing the stamping and forming performance of the sheet, and achieve the effect of improving the secondary forming ability
CN107497874BActive Publication Date: 2019-02-26CHONGQING UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHONGQING UNIV
Publication Date
2019-02-26

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Abstract

The invention discloses a squeezing method for regulating and controlling the texture of a magnesium alloy sheet by utilizing a hook-face interface structure. The squeezing method comprises the following steps that (1) two magnesium alloy base materials are combined into a cylindrical blank in an internal and external nested mode and fixed, the internal base material forms a core material, the external base material forms a packing material, and the junction surface of the two magnesium alloy base materials has the same or corresponding hook-face interface structure; and (2) the combined cylindrical blank is subjected to squeezing to be processed into a sheet at the hot squeezing temperature. According to the squeezing method for regulating and controlling the texture of the magnesium alloy sheet by utilizing the hook-face interface structure, the interface of a magnesium alloy is in an unsymmetrical stress state different from a traditional squeezing processing process in the combined squeezing process, the stress state can result in different degrees of deflection of the grain orientation, finally the basal texture of a magnesium alloy component is weakened, and promoting of the secondary forming capability of the squeezed sheet is facilitated.
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Description

technical field

[0001] The invention relates to a magnesium alloy plate, in particular to a method for regulating and controlling the texture of a magnesium alloy extruded plate, and belongs to the technical field of magnesium alloy processing. Background technique

[0002] Magnesium alloy has the advantages of low density, high specific strength and rigidity, good damping and shock absorption performance, large thermal diffusivity, easy chip processing, and easy recycling. The high-strength and low-quality characteristics of magnesium alloys make them widely used in the fields of automobiles, aerospace and electronic products. Extrusion is one of the most common processing methods for magnesium alloy sheets. Magnesium alloys exhibit good properties after extrusion, improving the strength and plasticity of magnesium alloys. Moreover, compared with other processing methods, extrusion can be formed at one time, and the processing efficiency is high. In addition, the extrusi...

Claims

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