Design and FEM validation of local loading forming apparatus
ZHANG Dawei
LI Hanjing
ZHANG Cheng
XIAO Shengtong
HU Yanghu
Abstract：The intermittent local loading forming method realized by dividing the whole die into several sub-dies provides a feasible way for the less-force integral forming of large aerospace closed-die forging.However,the lack of the matching forming equipment has limited the popularization and application of this process.Thus,in this study,an equipment structure for 10-tonne multi-pass local loading forming apparatus was designed.The designed local loading forming apparatus can provide 10-tonne forming load and 2-tonne constraint load,and thus can provide 20-tonne forming capacity.The finite element analyses of the stiffness,strength,and modal of the entire mechanical body for local loading forming apparatus were carried out.The results showed that the key components satisfied the design load,and the excitation source's operational frequency avoids the natural inherent frequencies of the whole structure.Then,a laboratory physical prototype was constructed.The relevant research provides the basis for further research on the design of large tonnage prototypes and industrial local loading forming equipment.
Keywords：intermittent local loadinghydraulic pressstructure designfinite element analysis
Publication Date：2025-07-20
Online Publishing Date：2025-09-08(First online date of this platform, not the publication date of the document)
Pages：6( 35-40 )