Transactions of Materials and Heat Treatment

Title：Spinning test for thin-walled hemispherical shell part of CNTs/Al composites

Authors： Feng Sule1 Yu Xiaopeng2 Li Zhiqiang3 Song Ruocun2 Yang Xueqin1 Yu Zhongqi2

Unit： 1.Shanghai Aerospace Research Institute of Precision Machinery 2.Shanghai Key Laboratory of Digital Manufacture for Thin-walled Structures Shanghai Jiao Tong University 3.School of Materials Science and Engineering Shanghai Jiao Tong University

KeyWords： aluminum matrix composites thin-walled part spinning artificial aging carbon nanotube

ClassificationCode：TG306

year,vol(issue):pagenumber：2023,48(5):183-187

Abstract：

As a new type of lightweight and high-strength material, aluminum matrix composites have important application prospects in aerospace products. Therefore, for carbon nanotube reinforced aluminum matrix composites (CNTs/Al composites), the spinning and heat treatment process of thin-walled curved busbar components were studied to evaluate the feasibility in engineering application of CNTs/Al composites thin-walled part. The spinning tests show that compared with the existing aluminum alloy materials for aerospace, the optimal parameter combination of “solid solution 500 ℃×2 h+ aging 150 ℃×4 h” of CNTs/Al composites is obtained, and the thin-walled hemispherical shell parts with good geometric accuracy are formed by multi-pass spinning process. At the same time, the tensile strength of spun part can reach 580 MPa after artificial aging, which is 35% higher than that of the existing aluminum alloy material. Thus, the research results provide technical support for the engineering application of CNTs/Al composites in large aerospace thin-walled parts.

Funds：

国家自然科学基金资助项目（52175346）

作者简介：冯苏乐（1987-），男，硕士，高级工程师,E-mail：fengsuleshikeke@126.com

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