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http://dx.doi.org/10.5302/J.ICROS.2013.19.2.171

Type Classification and Shape Display of Brazing Defect in Heat Exchanger  

Kim, Jin-Young (Tongmyong University)
Publication Information
Journal of Institute of Control, Robotics and Systems / v.19, no.2, 2013 , pp. 171-176 More about this Journal
Abstract
X-ray cross-sectional image-based inspection technique is one of the most useful methods to inspect the brazing joints of heat exchanger. Through X-ray cross-sectional image acquisition, image processing, and defect inspection, the defects of brazing joints can be detected. This paper presents a method to judge the type of detected defects automatically, and to display them three-dimensionally. The defect type is classified as unconnected defect, void, and so on, based on location, size, and shape information of defect. Three-dimensional display which is realized using OpenGL (Open Graphics Library) will be helpful to understand the overall situation including location, size, shape of the defects in a test object.
Keywords
brazing joint; defect type; defect shape; 3D display; heat exchanger; x-ray cross-sectional image;
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