Transactions of Materials and Heat Treatment

Title：Preforming optimization design on high-strength aluminum alloy special-shaped complex components

Authors： Li Xubin Wu Ang Zhang Zhimin Zhang Baohong Jia Zewei

Unit： North University of China Xi′an Zhongche Yongdian Jieli Wind Energy Co. Ltd.

KeyWords： complex component double concave preforming high-strength aluminum alloy Deform-3D

ClassificationCode：TG319

year,vol(issue):pagenumber：2019,44(9):56-62

Abstract：

For the defects of folding, over-loading and uneven deformation in the conventional extrusion of high-strength 7075 aluminum alloy special-shaped complex components, the preforming design method of concave billet was proposed. Then, the influences of concave direction and dimension parameters of preformed billet on forming load and deformation uniformity were analyzed by finite element analysis software Deform-3D, and the optimized structure and dimension parameters of preformed concave were determined. Finally, the optimization results were verified by physical tests, and Charpy notched impact test and tensile test were conducted by taking samples. The experiment results show that compared with the traditional extrusion process, the final forming load of billet by the double concave preforming reduces more than 39%, the equivalent strain difference significantly reduces, the deformation is more uniform, and the impact toughness, tensile strength and elongation improve respectively. Thus, the rationality of the optimized design scheme is verified by the forming test, and the research results provide a theoretical reference for the preforming optimization design of high-strength aluminum alloy special-shaped complex components.

Funds：

山西省自然科学基金资助项目（201801D121106）

李旭斌（1979-），男，博士，副教授 E-mail：lixu@nuc.edu.cn 通讯作者：吴昂（1994-），男，硕士研究生 E-mail：wuang1040@163.com

Reference：

［1］苑世剑. 新世纪中国塑性加工行业的发展与展望
［J］. 锻压技术,2018,43(7)：18-22,76.

Yuan S J. Development and perspectives on plastic forming industry of China in the new century
［J］. Forging & Stamping Technology,2018,43(7)：18-22,76.

［2］Hang Y, Ma X, Feng J, et al. Preform optimal design of H-shaped forging based on bi-directional evolutionary structural optimization
［J］. The International Journal of Advanced Manufacturing Technology, 2018，101(1-4):1-8.

［3］熊艳才. 航空复杂构件精确成形技术基础研究
［J］.航空制造技术,2010，(2):54-57.

Xiong Y C. Basic research on precise forming technology of aviation complex components
［J］. Aeronautical Manufacturing Technology, 2010，(2):54-57.

［4］Lee S R, Lee Y K, Park C H, et al. A new method of preform design in hot forging by using electric field theory
［J］. International Journal of Mechanical Sciences, 2002, 44(4):773-792.

［5］肖红,戴甲洪,周峻峰，等. 基于静电场的筋板状铝合金锻件预成形设计
［J］. 锻压技术, 2018, 43(1):20-25.

Xiao H，Dai J H，Zhou J F，et al. Design of preforming for rib-web aluminum alloy forgings based on electrostatic field
［J］. Forging & Stamping Technology, 2018, 43(1):20-25.

［6］邱磊，蔡靖凯，孙敏，等. 航空发动机铝合金筒体关键件锻造成形工艺
［J］. 锻压技术, 2018, 43(4): 16-21.

Qiu L，Cai J K，Sun M, et al. Forging process of key parts in aluminum alloy cylinder for aero-engine
［J］. Forging & Stamping Technology, 2018, 43(4): 16-21.

［7］陈邦华. 基于电场法的锻件预成形设计和研究
［D］. 重庆: 重庆大学,2014.

Chen B H. Study on Preform Design in Forging Process Base on Electric Field
［D］. Chongqing: Chongqing University, 2014.

［8］Ko D C, Kim D H, Kim B M . Application of artificial neural network and Taguchi method to preform design in metal forming considering workability
［J］. International Journal of Machine Tools and Manufacture, 1999, 39(5):771-785.

［9］李旭斌，安自朝，张治民, 等. 高强铝合金复杂筋板构件分流开放加载
［J］. 塑性工程学报, 2015, 22(4):26-29.

Li X B，An Z C，Zhang Z M, et al. Study on split-flow open loading of aldural complex rib-web component
［J］. Journal of Plastic Engineering, 2015, 22(4):26-29.

［10］贾杨. 体积分配不均匀铝合金框体挤压成形工艺模拟研究
［D］.太原：中北大学, 2014.

Jia Y. Volume Distribution Non-uniform Aluminum Alloy Frame Extrusion Forming Process Simulation
［D］. Taiyuan: North University of China, 2014.

［11］贾泽伟. 铝合金异形复杂截面构件成形研究
［D］.太原：中北大学,2015.

Jia Z W. The Research on the Forming Process of Aluminum Alloy Components with Complex Cross Section
［D］. Taiyuan: North University of China, 2015.

［12］肖军. 材料成形过程的类等势场法模拟与预成形设计
［D］.西安：西北工业大学, 2006.

Xiao J. Equipotential Field Method Simulation and Pre-forming Design for Material Forming Process
［D］. Xi′an: Northwestern Polytechnical University, 2006.

［13］马俊华. 金属夏比试样V型缺口尺寸的简易测量法
［J］.理化检验：物理分册,1997, (9):44.

Ma J H. Simple measurement method for V-notch size of metal Charpy specimens
［J］. Physical Testing and Chemical Analysis Part A:Physical Testing，1997, (9):44.

Service：

【This site has not yet opened Download Service】【Add Favorite】