In order to reduce the impact caused by heavy hydraulic braking process of forging press and re-alize the effective control of energy loss,a hydraulic accumulator was selected to establish an energy storage system,which realized the state of high pressure buffer chamber of heavy hydraulic cylinder and completed the process of efficient energy recovery. At the same time,the AMESim simulation system is used to test the state of energy recovery. The results show that when the volume of the accumulator is changed,the braking effect of the system is still basically the same,and the energy recovery rate is not different. The desired variable pump displacement can be obtained by adjusting the accumulator pressure to ensure optimal braking performance and increase energy recovery efficiency. The research is helpful to improve the stability of the forging press under heavy load and lay a theoretical foundation for the subsequent process optimiza-tion
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