Wu, D., Zhou, J., Ma, P., Zhao, T.
Optimization of hot die forging process parameters of 7050 aluminum alloy rib-web type components based on response surface method
(2017) Zhongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Central South University (Science and Technology), 48 (3), pp. 601-607.
归属机构: College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, China;
Institute of Materials Forming, Chongqing University, Chongqing, 400044, China
摘要: Due to the defects such as under-filling, partial draining and uneven deformation appearing in precision forming process of aluminum alloy aviation components, the height-width ratio of the billet (x1), billet temperature (x2), punch velocity (x3) and friction coefficient (x4) were selected to the optimization variables. Multi-objective optimization of hot die forging process parameters were studied using the response surface method (RSM) combined with finite element method (FEM). Second-order analysis models were established to describe the response of the three functions about optimization objectives and the results illustrated that the regression models were fine in prediction accuracy. By analyzing the 3D and 2D optimization graphs, the software of MATLAB was used to further optimized experiment parameters. The results show that the optimal process parameters are as follows: x1 is 1.3, x2 is 450℃, x3 is 6 mm/s and x4 is 0.3. Through the next actual production verification, the optimal process parameters optimized can effectively eliminate the dissatisfaction of the components. © 2017, Central South University Press. All right reserved.
作者关键字: Finite element method; Hot die forging; Multi-objective optimization; Response surface method; Rib-web components
索引关键字: Aluminum; Aluminum alloys; Billets (metal bars); Dies; Forging; Friction; MATLAB; Multiobjective optimization; Regression analysis; Surface properties; Upsetting (forming), 7050 aluminum alloy; Experiment parameters; Friction coefficients; Hot die forging; Optimization variables; Response surface method; Rib-web components; Second order analysis, Finite element method
通讯地址: Wu, D.; College of Materials Science and Engineering, Chongqing UniversityChina; 电子邮件: firstname.lastname@example.org
出版商: Central South University of Technology
来源出版物名称缩写: Zhongnan Daxue Xuebao (Ziran Kexue Ban)