An electro-hydraulic explosive forming device and method

Abstract

The invention discloses an electro-hydraulic explosion forming device and method, which belong to the field of pipe forming and manufacturing. The device is provided with a chamber for surrounding the pipe to be formed. The chamber is used to fill the reaction liquid. The device includes: a metal wire surrounding the pipe to be formed. The pipe fitting is located in the chamber; the power control module is connected to the two ends of the metal wire to provide pulse current for the wire; wherein, the metal wire generates an explosion shock wave on the surface of the pipe fitting to be formed by using the electro-hydraulic effect, so that the pipe fitting to be formed explodes Deformation under the action of shock waves. The metal wire surrounds the pipe fitting. When the metal wire forms a circular loop on the surface of the pipe fitting and the pipe fitting has good electrical conductivity, at the moment of passing the current, a strong pulse electromagnetic force and a high energy density load composed of explosive shock waves act on the pipe fitting, causing the pipe fitting to undergo high-speed explosion. The yield and plastic deformation can be used for the forming of pipe fittings of various complex shapes. No pollutants are produced during the forming process, which is environmentally friendly and efficient.

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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