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Method detects undercut flaw, undercut defect detection device, the arc welding method of fillet
Method detects undercut flaw, undercut defect detection device, the arc welding method of fillet
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机译:底切缺陷的检测方法,底切缺陷检测装置,圆角的弧焊方法
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摘要
PROBLEM TO BE SOLVED: To provide a method by which on-line detection of an undercut defect can be performed in arc-welding.SOLUTION: A method for detecting an undercut defect during welding when a fillet arc-welding is performed while weaving a weld torch, in which a weld part circumference immediately after coagulation of a weld zone circumference for arc-welding of a fillet is photographed by a camera, and a reflectance of ark light is monitored. When a reflectance of ark light, which is observed and has a brightness higher than that of a portion corresponding to an inversion position of weaving, is detected, it is determined that an undercut defect is generated.SELECTED DRAWING: Figure 2
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