Processing optimization for large spherical valve body based on FE simulation

摘要

Large spherical valves are the key parts of heavy energy equipments, which play an important role in energy storage and transportation. Valve body parts are the core components of large spherical valve, which directly determine the quality and service life of large spherical valve. In this paper, three processing technologies for one large spherical valve body are proposed, which are die forging, ring rolling and combined ring rolling. Based on SIMUFACT software platform, FE simulations for forming processes with three technologies are carried out, and the forming effects of three processing technologies are evaluated by compare the forming forces, forming accuracies and material utilizations among three forming processes. It is obtained that combined ring rolling technology has less force consumption, well forming accuracy and high material utilization compared to the other two technologies, and it can be regarded as an advanced processing technology for low-consumption, high-performance production of large spherical valve body.