虑及板坯几何和性能波动的薄壁件塑性成形数值模拟研究进展
崔笑蕾1, 詹梅1, 高鹏飞1, 李锐1, 王贤贤2, 雷煜东1, 马飞3, 张洪瑞1
1. 西北工业大学 材料科学与工程学院 陕西省高性能精密成形技术与装备重点实验室, 西安 710072;
2. 陕西科技大学 机电工程学院, 西安 710016;
3. 中国航天科技集团公司长征机械厂, 成都 610100
CUI Xiaolei1, ZHAN Mei1, GAO Pengfei1, LI Rui1, WANG Xianxian2, LEI Yudong1, MA Fei3, ZHANG Hongrui1
1. Shaanxi Key Laboratory of High-Performance Precision Forming Technology and Equipment, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, China;
2. School of Mechanical and Electrical Engineering, Shaanxi University of Science and Technology, Xi'an 710016, China;
3. Changzheng Machinery Factory, China Aerospace Science and Technology Corporation, Chengdu 610100, China
关键词: 塑性成形, 金属板坯, 数值模拟, 几何波动, 性能波动
Abstract: Thin-walled metal blanks have inevitable fluctuations in geometry and performance parameters. The fluctuating parameters show strong dispersion and randomness, and are difficult to be accurately and quantitatively characterized. The fluctuation significantly increases the complexity of deformation of metal blanks in plastic forming, resulting in a decrease in forming quality and forming limit, especially in stamping and spinning of think-walled components with the characteristics of strong non-uniform deformation. Precise forming of thin-walled metal components is thus greatly restricted. This paper summarizes relevant research on characterization of geometry and performance fluctuation of the blank, the finite element model for plastic forming of thin-walled components considering blank geometry and performance fluctuation, influencing laws of the forming quality, and design and control of the technological parameters. The key problems and challenges are also discussed, providing a fundamental guidance for plastic forming of thin-walled components.
Key words: plastic forming, metal blank, numerical simulation, geometric fluctuation, performance fluctuation