Multi-directional repeated extrusion deformation processing device and procesisng method for magnesium alloy profile

Abstract

The invention relates to the technical field of metal material processing equipment, in particular to a multi-directional repeated extrusion deformation processing device and a processing method for amagnesium alloy profile. The processing device comprises a male die, an upper female die and a lower female die; the upper female die is provided with a die cavity; the die cavity is composed of a male die channel and an extrusion channel; the male die channel is in a cuboid shape; the extrusion channel is in an inverted regular quadrangular frustum pyramid shape; the upper female die and the lower female die are connected, positioned and combined into the female die through screws and pins; and the male die is arranged in the male die channel and is matched with the male die channel. The processing device provided by the invention is simple in structure, convenient to operate, beneficial to extrusion sample demolding, capable of preparing a large number of high-performance magnesium alloy products of various sizes, capable of improving the production efficiency and the processing precision, easy to disassemble, convenient to maintain, small in abrasion to the male die under the condition of long-time extrusion production, and the magnesium alloy processed by the device has good strength, plasticity and corrosion resistance.

Description

Technical field

[0001] The invention relates to the technical field of metal material processing equipment, in particular to a multi-directional repeated extrusion deformation processing device and processing method for magnesium alloy profiles.Background technique

[0002] Magnesium alloys have the characteristics of low density, high specific strength and specific rigidity, and have broad application prospects in various fields. However, the magnesium alloy has a close-packed hexagonal crystal structure, few independent slip systems, and poor plasticity at room temperature, which causes its application range to be greatly restricted. When the deformation temperature is higher than 498K, the plastic deformation ability of the magnesium alloy is improved to a certain extent. Traditional cast magnesium alloys have gradually been unable to meet industrial requirements. Wrought magnesium alloys produced by extrusion, forging, rolling and other processes have higher strength and better ductil...

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