Tao, Y., Zhou, J., Cao, J., Luo, Y., Chen, B.
Optimization design preform billet shape of 7050 aluminum alloy giant plane forgings based on electric field method and MBC toolbox
(2015) International Journal of Advanced Manufacturing Technology, 81 (1-4), pp. 231-240.
归属机构: College of Materials Science and engineering, Chongqing University, Chongqing, 400044, China
摘要: The preform billet shape of the 7050 aluminum alloy giant plane forgings has been designed using electric field method based on similarity principle. Firstly, the electrostatic field was analysed by using ANSYS software, from which the preform billet shape was obtained based on electrostatic field equipotential lines. The preform shape, press velocity, temperature and friction factor were taken as parameter variables, while the forming load, filling rate and grain size were chosen as optimization goals. The mathematical model was optimized by the use of a Model-Based Calibration (MBC) toolbox for modelling, Three-Dimensional of Design Environment for FORMing (DEFORM-3D) for simulation and CAlibration GEneration (CAGE) toolbox, obtaining the best preform shape and the optimal combination of process parameters (friction factor μ = 0.2, press velocity ν = 9.8 mm/s and billet temperature T = 478 °C) when the equipotential line was ξ = 0.425 V. Finally, comparing with initial preform shape, the results indicate that the optimized preform billet designed by electric field method has an advantage in finish forging, while the forming load of finish forging reduces by about 38 % and the average micrograin size reduces by about 45 %. Therefore, it provides an effective method for designing preform billet shape of complex forgings. © 2015, Springer-Verlag London.
作者关键字: 7050 aluminum alloy giant plane forgings; CAGE toolbox; Electric field method; MBC toolbox; Preform billet shape
索引关键字: Alloys; Aluminum; Aluminum alloys; Billets (metal bars); Calibration; Electric fields; Electrostatics; Forging; Forgings; Friction; Presses (machine tools); Upsetting (forming), 7050 aluminum alloy; Billet shapes; CAGE toolbox; Equipotential lines; MBC toolbox; Model-based calibration; Optimal combination; Similarity principle, Preforming
通讯地址: Tao, Y.; College of Materials Science and engineering, Chongqing UniversityChina; 电子邮件: email@example.com
出版商: Springer London
来源出版物名称缩写: Int J Adv Manuf Technol