中南大学学报（自然科学版）2017，Vol.48Issue(3)：601-607,7.DOI:10.11817/j.issn.1672-7207.2017.03.007
基于响应面法的7050铝合金筋板类锻件热模锻成形工艺优化
Optimization of hot die forging process parameters of 7050 aluminum alloy rib-web type components based on response surface method
摘要
Abstract
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:x1is 1.3,x2is 450℃,x3is 6 mm/s and x4is 0.3. Through the next actual production verification, the optimal process parameters optimized can effectively eliminate the dissatisfaction of the components.关键词
多目标优化/响应面法/筋板类锻件/热模锻/数值模拟Key words
multi-objective optimization/response surface method/rib-web components/hot die forging/finite element method分类
矿业与冶金引用本文复制引用
吴道祥,周杰,马鹏程,赵天生..基于响应面法的7050铝合金筋板类锻件热模锻成形工艺优化[J].中南大学学报（自然科学版）,2017,48(3):601-607,7.基金项目
国家自然科学基金资助项目(51275543) （51275543）
中国科技部重大专项项目(2012ZX04010-081) （2012ZX04010-081）
重庆市科委应用开发(重大)项目(cstc2014yykfC70003) (Project(51275543) supported by the National Natural Science Foundation of China （重大）
Project(2012ZX04010-081) supported by the Special Funds for Major Projects of China's Ministry of Science & Technology （2012ZX04010-081）
Project(cstc2014yykfC70003) supported by the Chongqing Science & Technology Application Development Program) （cstc2014yykfC70003）
