چکیده

The metal-to-metal connection uses a special welding process, the quality control of which is so important that today the visual control method of destructive analysis has almost replaced the automatic non-destructive detection of welding defects. Among non-destructive methods, this particular method is more comprehensive due to the cheapness of radiography compared to other non-destructive methods and the simplicity of radiographic image analysis. However, the diagnosis of human welding defects may be related to errors due to the low quality of radiographic images. Therefore, today’s radiographic images are analyzed by computer and automated image processing methods. In this work, a clustering method has been used to detect welding defects. The process is to first remove the negative effects such as noise in the image through preprocessing, improve the image quality, and then implement the fuzzy C-means (FCM) algorithm to identify welding defects. In this work, the independent variable is the number of clusters in the fuzzy clustering, and it has been shown that the accuracy of detecting defects in welding images increases as the number of clusters increases. Furthermore, based on the obtained results, the average accuracy of the method for small cracks, large cracks, and void defects is 92.01%, 94.67%, and 99.92%, respectively.

کلیدواژه:

Control System

Matlab

Welding Defects

Fuzzy Clustering Algorithm

نویسندگان:

Hasan N.  Bairmani¹, Mojtaba B Taghadosi², Ali H. Jawdhari³, Ghassan Fadhil Smaisim⁴, Husam A. Al-Hameed^5
1Faculty of Electrical Department, Track Mechatronic, Imam Reza International University Mashhad, Iran.

²Karbala Refinery Oil Project.

³General Company for Electrical Energy Production Basra, Iraq.

⁴Department of Mechanical Engineering, Faculty of Engineering, University of Kufa, Iraq.
⁵General Company for The Manufacture of Cars and Equipment Babylon, Iraq.

DOR:

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