Abstract
The differences of effective stress, effective strain, velocity field, and the load-time curves between the spider isothermal and non-isothermal forging processes are investigated by making full use of 3D FEA, and verified by the production experiment of spider forging. Effective stress is mainly concentrated on the pin, and becomes lower closer to the front of the pin. The maximum effective strain in the non-isothermal forging is lower than that in the isothermal. The great majority of strain in the non-isothermal forging process is 1.76, which is larger than the strain of 1.31 in the isothermal forging. The maximum load required in the isothermal forging is higher than that in the non-isothermal. The maximum experimental load and deformation temperature in the spider production are in good agreement with those in the non-isothermal FEA. The results indicate that the non-isothermal 3D FEA results can guide the design of the spider forging process.
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Acknowledgments
The authors are grateful to be supported by Natural Science Foundation of Jiangsu Province, P. R. China under Grants BK2012594 and BK20131144, the Science Project of Changzhou, P. R. China under Grant CZ20130021, the Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD) under Grant No. [2014]9, and the Ministry of Education and Science of the Russian Federation within the Framework of the Design Part of the State Task No. 11.2540.2014/K Educational Organization of Higher Education.
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Niu, L., Wei, W., Wei, K.X. et al. 3D Finite Element Analysis of Spider Non-isothermal Forging Process. J. of Materi Eng and Perform 25, 2536–2541 (2016). https://doi.org/10.1007/s11665-016-2108-2
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DOI: https://doi.org/10.1007/s11665-016-2108-2