中南大学学报（自然科学版）2017，Vol.48Issue(5)：1155-1161,7.DOI:10.11817/j.issn.1672-7207.2017.05.005
基于RSM的铝合金大锻件局部加载成形质量控制
Control of local loading forming quality for aluminum alloy heavy forging based on RSM
摘要
Abstract
The strategy of combining response surface method with FEM was proposed to solve the problems under filling and micro-structural uniformity of 7050 aluminum alloy heavy forging, which was formed in the process of local loading. A response surface model was established, with the micro-structural uniformity and filling capacity as its evaluation objectives, and billet temperature, press velocity, angle of up die and parameter for passes were selected as the design variables of that model. Then the reasonable process parameters were obtained: billet temperature, press velocity and angle of up die are 440℃, 10 mm/s and 158°, respectively. The number of passes is three, the amount of each pass was 20, 20 and 5 mm. The parameters obtained above were applied in simulation and practical manufacture. The results show that not only the microstructure of forging obtained by simulation and manufacturer is uniform but also the distribution law of microstructure is consistent. The capacity of filling is good too. The quality of the microstructure and macrostructure of heavy forging can be effectively managed by the strategy proposed.关键词
铝合金大锻件/局部加载/微观组织/填充性/响应面法Key words
aluminum alloy heavy forging/local loading/microstructure/filing capacity/response surface method分类
矿业与冶金引用本文复制引用
王梦寒,马鹏程,周峻峰,吴道祥,曾庆华..基于RSM的铝合金大锻件局部加载成形质量控制[J].中南大学学报（自然科学版）,2017,48(5):1155-1161,7.基金项目
中央高校基本科研业务费资助项目(CDJZR14130006) （CDJZR14130006）
科技部重大专项(2012ZX04010-081) (Project(CDJZR14130006) supported by the Fundamental Research Funds for the Central Universities （2012ZX04010-081）
Project(2012ZX04010-081) supported by Major Specific Item of Science & Technology Ministry) （2012ZX04010-081）
