文献类型：会议论文

英文题名：Defect Detection and Three Dimensional Reconstruction of Castings

作者：Liu, Jing[1]

机构：[1]East China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai 200237, Peoples R China

会议论文集：5th International Conference on Mechatronics and Mechanical Engineering (ICMME)

会议日期：NOV 10-12, 2018

会议地点：China Univ Geosciences, Wuhan, PEOPLES R CHINA

主办单位：China Univ Geosciences

语种：英文

摘要：There are defects inevitably in the production of castings. These defects will short the life of castings. In this paper, defects of the castings are detected by industrial CT non-destructive testing method and a series of CT slice images are obtained. Then edge extraction is realized through the Canny operator and the defects in the castings are found. Finally, surfaces and its internal defects are reconstructed for the casting based on secondary development of Unigraphics software and Visual Studio 2013. Experiments show that internal defects of the castings can be extracted by the Canny operator effectively. Internal position and shape of defects can be observed directly by three dimensional reconstruction.