Xiang, R., Zhou, J., Xiong, Y., Liu, J., Wang, H.
55199183400;56510510800;57195246515;57195254381;57031081700;
Hot forming of complex surface of hollow blade back arc based on drawing process
(2017) International Journal of Advanced Manufacturing Technology, 93 (9-12), pp. 4015-4021.
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85026545740&doi=10.1007%2fs00170-017-0817-9&partnerID=40&md5=bc24d04a1738c23609e53f04d9d9fb10

DOI: 10.1007/s00170-017-0817-9
归属机构: College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, China
摘要: Hollow blades which have large size and complex surface are difficult to control springback and dimensional accuracy in hot forming. The forming molds only have upper and lower die that it cannot control the material flow effectively. So, a new hot forming process has been proposed. In this paper, a blade back arc that is used in nuclear steam turbine stator and formed through hot drawing with binder is chosen as the research object. After optimizing the forming parameters, numerical simulation technology is used to forecast the forming quality, and the part trial test agrees with the simulation results. The thickness of part meets the requirements, and the springback results show that springback of part is beyond the tolerance range in small area. According to the test result, die surface is compensated. After that, springback is controlled into an acceptable range. Compared with former hot forming process, the new hot forming process controls the material flow effectively, and blade back arc has small springback and high accuracy. © 2017, Springer-Verlag London Ltd.
作者关键字: Complex surface;  Hollow blade;  Hot forming;  Springback;  Thickness distribution
索引关键字: Drawing (forming); Steam turbines; Turbomachine blades, Complex surface; Hollow blades; Hot forming; Spring-back; Thickness distributions, Process control
通讯地址: Xiang, R.; College of Materials Science and Engineering, Chongqing UniversityChina; 电子邮件: 20140901002@cqu.edu.cn
出版商: Springer London
ISSN: 02683768
CODEN: IJATE
原始文献语言: English
来源出版物名称缩写: Int J Adv Manuf Technol
文献类型: Article
来源出版物: Scopus