Electro-hydraulic explosion forming device and method

Abstract

The invention discloses an electro-hydraulic explosion forming device and method, and belongs to the field of pipe forming and manufacturing. A cavity used for surrounding a pipe to be formed is formed in the device, the cavity is used for being filled with reaction liquid, and the device comprises a metal wire and a power control module, the metal wire surrounds the pipe to be formed and locatedin the cavity; the power control module is connected with two ends of the metal wire and used for providing pulse current for the metal wire; the metal wire generates explosive shock waves on the surface of the pipe to be formed through an electro-hydraulic effect, so that the pipe to be formed deforms under the action of the explosive shock waves. The metal wire surrounds the pipe, when the metalwire forms an annular loop on the surface of the pipe and the conductive performance of the pipe is good, a high-energy-density load composed of strong pulse electromagnetic force and explosive shockwaves is generated at the moment of passing through current and acts on the pipe, so that the pipe is subjected to high-speed yield and plastic deformation. The device and method can be used for forming various complex-shaped pipes, no pollutant is generated in the forming process, and environmental friendliness and high efficiency are achieved.

Description

technical field [0001] The invention belongs to the field of pipe forming and manufacturing, and more specifically relates to an electro-hydraulic explosive forming device and method. Background technique [0002] In recent years, various complex shapes of aluminum alloys, magnesium alloys, titanium alloys, and high-strength light alloy pipe fittings have become more and more widely used in aerospace, automotive and other fields. Traditional forming technology has encountered major obstacles in the processing and application of high-strength light alloy materials, mainly reflected in the poor plasticity and difficulty of forming of light alloy materials, and a new forming technology is urgently needed. Studies have shown that high-speed forming can improve the plastic deformation ability of difficult-to-deform materials, and can also reduce the springback rate of the workpiece. Therefore, high-rate forming technology has been more applied in light alloy forming. [0003] H...

AI Technical Summary

Problems solved by technology

However, the traditional electro-hydraulic forming produces arc breakdown and shock wave load between two electrodes, which is mainly used in the processing of plate parts, and it is difficult to process and form pipe parts and complex shapes.

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