Transactions of Materials and Heat Treatment

Title：3D coupled thermo-mechanical FEM simulation of forging process of TC4 alloy workpiece

Authors： LV Cheng~(1 2) ZHANG Li-wen~(1 2) MU Zheng-jun~2 PEI Ji-bin~(1 2)(1.The State Key Laboratory for Materials Modification by Laser Ion and Electron Beams Dalian University of Technology Dalian Liaoning 116024 China 2.School of Materials Science and Engineer

Unit：

KeyWords： TC4 titanium alloy forging thermo-mechanical coupling FEM simulation

ClassificationCode：TG317

year,vol(issue):pagenumber：2007,32(1):28-31

Abstract：

The titanium alloy workpiece applied in aeronautic industry has a large deformation on head during forging process.Due to the asymmetry of deformation,if the technical scheme is not appropriate,it will possibly result in the appearance of forging defects.In order to solve the problems appearing in production,a 3D coupled thermo-mechanical finite element model for forging process of TC4 alloy workpiece is established.The rigid-viscoplastic finite element method is used to simulate the forging process.Based on the simulated results on metal flow and thermomechanical field variables,such as temperature and stress,the cause of forging defects is analyzed.The simulation results agree well with industrial trials,and this study could provide a good reference for forging process planning.

Funds：

辽宁省航空基金资助项目(2005400201)

Reference：

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