2025/06/30 by Savenko, E. S., Matvienko, S. A., Popov, D. V. +2
#electric discharge #electrohydraulic distribution #electromagnetic energy #energy of explosives #piston pin #plastic deformation of metal #repair size #reworking #tearing #восстановление #износ #пластическое деформирование металла #поршневой палец #ремонтный размер #электрогидравлическая раздача #электромагнитная энергия #электроразряд #энергия взрывчатых веществ
paper · doi:10.71536/vd.2025.3c173.2
The paper proposes a method for improving the technology of reworking piston pins of internal combustion engines by plastic deformation of metal using the energy of a high-voltage pulsed discharge in a liquid known as the electrohydraulic effect. The paper discusses the interaction of a shock wave with a machined part, the equations of motion of a cylindrical shell, and defines a reflected wave propagating in a closed and limited volume. A solution to the wave equation is proposed as well. A mathematical model of the electrical discharge process during the reworking of piston pin is represented. It is possible to rebuild not only steel but also cast-iron parts of the bearing cap of the transmission gear shaft made of ductile iron by electrohydraulic distribution. The abovementioned examples confirm the great technological possibilities of reworking parts by electrohydraulic distribution.