Rotary forging is a continuous local pressure plastic forming technology. The equipment to realize the rotary forging technology is called the rotary forging machine. In this paper, the finite element analysis of the frame of the rotary forging machine is carried out, and then the structure and size of the machine frame are optimized. Finally, the experimental results show that the grain size and hardness of the formed workpiece are improved, which shows that the optimization scheme is reasonable.

This paper investigates an experiment with the cryogenically treated copper electrode and an ordinary copper electrode with various input parameters like electrode rotation, gap voltage and discharge current for an EN24 material. An experiment was performed on an electrical discharge machine. Designs of an experiment are carried out using the Taguchi approach. This research finds optimal or dominating factors in both traditional and non-traditional machining processes.

The shaking of the Rotary forging machine has an important influence on the life of the equipment parts machining accuracy and surface profile of parts, reducing the production efficiency. This paper proposes a method to reduce shaking by changing eccentricity，obtained the design relationship of internal and external sleeves eccentricity, which can reduce the shaking in rotary forging press. This study improving the working state of the rotary forging machine and economic benefits.