铸造技术2018，Vol.39Issue(5)：1045-1049,5.DOI:10.16410/j.issn1000-8365.2018.05.026
基于灰色关联分析的7050铝合金轮毂锻造工艺优化
Optimization of Forging Process of 7050 Aluminum Alloy Wheel Based on Gray Correlation Analysis
摘要
Abstract
In order to improve the quality of 7050 alloy wheel hub forging, the forging processes were studied. Based on mold temperature, the billet temperature, the forming speed and friction coefficient, the average grain size and the average recrystallization percentage were optimized. Based on gray correlation analysis to multi-objective optimization was transformed into single objective optimization, and the influence of the average grain size and the average recrystallization percentage on the gray relational degree were determined by principal component analysis to determine the optimal process parameters. Based on the regression analysis of experimental data, a second-order prediction model of grey relational degree and forging process parameters was established. The results show that the delta Max value shows that 7050 aluminum alloy wheel hub forging process, the optimal process parameters is the mold temperature is 450 ℃, the billet temperature is 460 ℃, the forming speed is 8 mm·s-1, the friction coefficient is 0.1, and this group of process parameters is verified in the practical production of rationality and the effectiveness of the proposed method.关键词
工艺优化/数值模拟/灰色关联分析/回归分析Key words
process optimization/numerical simulation/gray correlation analysis/regression analysis分类
矿业与冶金引用本文复制引用
丁世林,黄海松,康佩栋,张钧星..基于灰色关联分析的7050铝合金轮毂锻造工艺优化[J].铸造技术,2018,39(5):1045-1049,5.基金项目
贵州省发改委项目(黔发改投资[2015]542 号) （黔发改投资[2015]542 号）
贵州省教育厅项目(黔教合协同创新字[2015]02) （黔教合协同创新字[2015]02）
贵州省工业攻关重点项目(黔教合支撑[2017]2311) （黔教合支撑[2017]2311）
