Development and Application of X-ray Computed Laminography for Aerospace
FU Jian1,2, ZHANG Changsheng1, ZHU Guogang1, WANG Bingyang3, YUAN Shengping4, JIANG Baihong5
1. School of Mechanical Engineering & Automation, Beihang University, Beijing 100191, China;
2. Jiangxi Research Institute, Beihang University, Nanchang 330096, China;
3. AVIC Manufacturing Technology Institute, Beijing 100024, China;
4. Aerospace Research Institute of Materials & Processing Technology, Beijing 100076, China;
5. Research Institute of Aerospace Special Materials & Technology, Beijing 100074, China
X-ray computed laminography (CL) is an advanced non-contact nondestructive three-dimensional testing method. It can visualize the internal structure and defects of plate-shell products with high-resolution images and overcome the shortcomings of the traditional computed tomography (CT) technique. In the field of aerospace, there are many plateshell components such as solar panels, tails, engine turbine discs, blades and microelectronic chips. Effective nondestructive testing and evaluation of internal damage and defects is an important guarantee for flight safety of aerospace vehicles. Based on the applications of nondestructive testing for aerospace plate and shell structures and the author’s engineering practice in this field, this paper briefly describes the principle and characteristics of CL, summarizes its research progresses, analyses its key techniques and difficulties, and looks forward to its promising future.
2019, 
