Research on Visual Detection Method of Laser Welding Seam

Abstract

Weld defects produced by welding will destroy the quality of products. The visual detection method of weld seam using artificial neural network has been applied in industry, but few researchers have established a method to measure the shape of weld seam. In this paper, a feasible scheme based on image processing and artificial neural network is proposed, which not only detects the location of weld defects, but also measures the geometric dimensions of welds. The effectiveness of the method was verified by testing on the self-built dataset and the average accuracy of the size measurement reached 95.9%.