Studying the processes of creation of high-energy submerged liquid jet and its interaction with deforming blank

Zhexin WANG

Abstract


The article describes the results of experimental work on substantiating the possibility of using electrode systems of directed influence for electrohydraulic sequential stamping of large-sized sheet metal parts. These systems generate a concentrated flow of energy, which is directed in the desired direction and in specific places. Thus, these systems reduce energy consumption in arbitrary directions.

It is shown that in many cases of successful use of this type of forming of sheet metal parts, the mechanism of loading a blank with shock waves is considered, which propagate in all directions of the discharge volume and transfer a certain fraction of the released energy. When stamping large parts, due to their large dimensions, with such a loading mechanism, part of the energy is used unproductively. To increase the efficiency of energy use, it is necessary to use electrode systems of directed influence.

The research was carried out in stages - first preliminary computer modeling, and then physical modeling.

The computer simulation of the process revealed the mechanism of loading the blank with high-energy submerged liquid jets. The presented results of field studies confirmed the mechanism of such loading.

Physical modeling was carried out using complex techniques using high-speed registration of the object's motion and electrical methods for registering rapidly changing parameters.

Experimentally obtained dependences of the distribution of the energy flux density coming from the discharge cavities of such systems. Empirical dependences of the energy flux density, pressure pulse and other parameters depending on the conditions of the stamping process were synthesized.

The goal of the work is to increase the efficiency of stamping large sheet metal parts by more rational and productive conversion of electrical energy into plastic forming work.

The tasks set have been completed. Conclusions have been obtained that predict positive results.

Methods used in the study. The study used the method of computer modeling, experimental studies, which include high-speed photographic reading, recording of oscillograms of pulse parameters.

Keywords


electrohydraulic forming, electrode systems of directional influence, local deformation

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References


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DOI: https://doi.org/10.32620/oikit.2026.107.04

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