Transactions of Materials and Heat Treatment

Title：Forging process of titanium alloy winglike part based on FEM simulation method

Authors： Zhang Mingjie Huang Lijun Li Hengzheng Meng Yao Li Xuefei

Unit： AVIC Beijing Institute of Aeronautical Materials Beijing Xinfeng Mechanical Equipment Company

KeyWords： titanium alloy TA15 winglike forging workpiece FEM simulation forging process temperature field stress field

ClassificationCode：TG316

year,vol(issue):pagenumber：2016,41(11):32-37

Abstract：

Based on FEM simulation method, the distributions of stress, strain, temperature and strain rate during forging stage and their regulation were studied, and the influences of technique parameters on deformation behavior of titanium billets were analyzed in the forging process of winglike titanium alloy TA15. Considering the large deformation causing dynamic recrystallization and influence on the microstructure and mechanical properties of alloy, the DRX model was combined in the FEM programs and used to simulate recrystallization behavior during hot forging. The results show that the plate of forging bears the interaction between thermal transmission and heat generation, so the distribution of temperature and stress are very complicated with the feature of higher on the center and lower on the edges. Meanwhile, the large deformation of wing plate and short axis result in high dislocation density. Thus, dynamic recrystallization phenomenon is obvious under the rising of local temperature caused by deformation.

Funds：

张明杰（1984-），男，博士，工程师

Reference：

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