NDLI: Compact visual control system for aligning and tracking narrow butt seams with CO2 gas-shielded arc welding

Content Provider	Springer Nature Link
Author	Xu, De Fang, Zaojun Chen, Haiyong Yan, Zhiguo Tan, Min
Copyright Year	2011
Abstract	In this paper, a visual control system is proposed to locate the start welding position and track the narrow butt welding seam in container manufacturing. It estimates the error between the welding torch and the welding seam with a camera and a panel computer. It adjusts the torch’s position via a stepper motor to eliminate the error. A decision controller with three gates is designed to decide the working procedure. Feature extraction algorithms are designed according to the seams and pre-weld spots. The seam line and the position of the pre-weld spot are detected to locate the start welding position in initial aligning. Then the torch is aligned to the seam. In the welding stage, the reference feature is determined with many frames of images based on their statistical property. The current estimated feature is checked to ensure only normal features to be used for welding seam tracking. Experiments are well conducted to verify the effectiveness of the proposed system and methods.
Starting Page	1157
Ending Page	1167
Page Count	11
File Format	PDF
ISSN	02683768
Journal	The International Journal of Advanced Manufacturing Technology
Volume Number	62
Issue Number	9-12
e-ISSN	14333015
Language	English
Publisher	Springer-Verlag
Publisher Date	2012-01-04
Publisher Place	London
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Feature extraction Image feature statistics Start welding position Visual control Vision system Aligning Seam tracking Gas-shielded arc welding Container manufacturing Computer-Aided Engineering (CAD, CAE) and Design Mechanical Engineering Production/Logistics/Supply Chain Industrial and Production Engineering
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Control and Systems Engineering Mechanical Engineering Computer Science Applications Software

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