Electro-hydraulic forming device for pipe fitting and forming method

Abstract

The invention discloses an electro-hydraulic forming device for a pipe fitting and a forming method. The electro-hydraulic forming device comprises a bulging die, a power source, a water pipe, a water storage tank, an aqueous medium, a metal wire, a positive electrode and a negative electrode. The metal wire is made to penetrate through the installed positive electrode, the pipe fitting to be formed and the negative electrode in sequence, and the positive electrode and the negative electrode are installed in the two ends of the pipe fitting respectively. Water is injected into the sealed pipe fitting. High-energy pulses are transmitted to the metal wire through a wire, in this way, the size of the metal wire is increased rapidly after the metal wire is gasified due to heating, impact waves are generated in the medium around the metal wire, the impact waves act on the pipe fitting, the required pipe fitting is obtained through bulging through electro-hydraulic forming based on discharging of the metal wire. The forming performance of materials is improved, the rebound rate is reduced, the forming precision of the pipe fitting is improved, in this way, a part with the forming quality and precision meeting requirements is obtained, and the pipe fitting is promoted to burgle.

Description

technical field [0001] The invention relates to a pipe fitting forming device and method, in particular to a pipe fitting electro-hydraulic forming device and method Background technique [0002] In recent years, aluminum alloy, magnesium alloy, titanium alloy and superalloy pipe fittings of various complex shapes have been widely used in aerospace, automobile and other fields. Due to the low formability of these materials at room temperature, it is necessary to form such Complex pipe fittings require a lot of forming pressure. Although increasing the temperature can improve the formability of the material, high-temperature forming will cause additional energy consumption, mold wear, lubricant costs, and cleaning costs for parts after forming. At the same time, high-temperature forming will Reduce the strength of the pipe fittings. In this case, high-rate forming technology has become an important means to improve the formability of materials at room temperature. Compared w...

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Problems solved by technology

[0005] In order to overcome the deficiency in the prior art that it cannot be used for the bulging of pipe fittings, the present invention proposes an electro-hydraulic forming device and forming method for pipe fittings

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