Abstract
A 2D finite element model was established for inertia friction welding of GH4169 nickel-base superalloy based on the ABAQUS environment. The remeshing and map solution techniques were adopted to solve the problem of element distortion. The effect of rotation speed on the temperature field and axial shortening of joints was investigated. The results show that the interface temperature increases rapidly to higher than 900°C within 1 s. And then, it increases slowly to a quasi-stable value. The axial shortening begins to augment quickly when a uniform interface temperature field has formed and the plasticized material is extruded from the interface to form an obvious flash. The rotation speed of the flywheel controls the welding process and has a significant influence on the temperature evolution and axial shortening of joints.
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Foundation item: the National Natural Science Foundation of China (No. 51005180), the Ao-Xiang Star Project of NPU (Northwestern Polytechnical University), the Research Fund of the State Key Laboratory of Solidification Processing (NPU, China) (No. 69-QP-2011), the Program for New Century Excellent Talents in University by the Ministry of Education of China (No. NECT-08-0463), and the 111 Project (No. B08040)
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Chen, L., Li, WY. & Li, Jl. Effect of rotation speed on temperature field and axial shortening of inertia friction welded GH4169 joints by numerical simulation. J. Shanghai Jiaotong Univ. (Sci.) 16, 277–280 (2011). https://doi.org/10.1007/s12204-011-1143-2
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DOI: https://doi.org/10.1007/s12204-011-1143-2