A method for preparing high formability magnesium alloy sheet by composite deformation

Abstract

The invention relates to a method for preparing a high-formation-property magnesium alloy panel by composite deformation. According to the method, a compression deformation process is carried out between two rolling deformation processes, and thermal treatment is carried out before each rolling deformation process and the compression deformation process; a rolling process and a compression deformation process in different deformation directions are coupled, the grain orientation of a magnesium alloy sheet is adjusted and controlled, grains are refined, and the textures of base surfaces are weakened, so that the room-temperature cup drawing value of the magnesium alloy sheet is substantially increased after the composite deformation, and the room-temperature forming property of the deformedmagnesium alloy sheet is effectively improved.

Description

technical field

[0001] The invention relates to the field of metal materials, in particular to a method for preparing high-formability magnesium alloy plates through composite deformation. Background technique

[0002] Magnesium alloy is currently the lightest metal material in industrial applications. It has the advantages of excellent vibration damping performance and good electromagnetic shielding performance. It can partially replace steel, aluminum alloy and other profiles to meet the requirements of light and thin integration of products. The lightweight application of tools and 3C products is growing rapidly.

[0003] Wrought magnesium alloys have good comprehensive mechanical properties, uniform structure and fine grains. At present, deformed magnesium alloy sheets are mainly produced by plastic processing such as extrusion and rolling. ZL201610957860.3 discloses a new method for the preparation and processing of high-performance alloy profiles, which discloses the...