Visual Sensing Systems for Arc Welding Process

2008 ◽  
pp. 35-55 ◽  
Author(s):  
Shan-Ben Chen ◽  
Jing Wu
Keyword(s):  
Arc Welding ◽  
Welding Process ◽  
Visual Sensing ◽  
Sensing Systems ◽  
Arc Welding Process

Visual Technique for Detecting Weld Position Based on Hough Transformation

2010 ◽  
Vol 139-141 ◽  
pp. 2059-2062
Author(s):  
Zhao Yu Li ◽  
Xiang Dong Gao ◽  
Xing Huan Zhu ◽  
Jian Wen Lin
Keyword(s):  
Arc Welding ◽  
Tracking System ◽  
Welding Process ◽  
Seam Tracking ◽  
Edge Image ◽  
Hough Transformation ◽  
Visual Sensing ◽  
Visual Technique ◽  
Arc Welding Process ◽  
Weld Edge

Detecting the weld position is the precondition of seam tracking during an arc welding process, and is crucial to achieve high-quality welds. Visual sensing is one of the most attractive approaches to detect the weld position, which provides valuable information to control the arc following the expected path. The weld edge is main characteristics of the weld position image, here the visual technique for detecting the weld position based on Hough transformation is proposed. The weld position can be detected and recognized through Hough transformation, while the weld edge image is detected using the Canny operators. And Hough transformation is modified based on the actual weld situation. Therefore, the precision of the weld detection can be improved. From the analysis of experiments, it has been proved that the proposed method can detect the width and the center of the weld, and is suitable for the seam tracking system based on the computer vision.

Visual sensing system for in-process control of arc welding process

1988 ◽  
Vol 2 (12) ◽  
pp. 1086-1090 ◽  
Author(s):  
S Nakata ◽  
Huang Jie ◽  
Y Tsuruha ◽  
N Noguchi ◽  
T Kobashiri
Keyword(s):  
Process Control ◽  
Arc Welding ◽  
Welding Process ◽  
Sensing System ◽  
Visual Sensing ◽  
Arc Welding Process

The Determination of Noxes Emissions in Case of Manual Arc Welding Process with Coated Electrode

2018 ◽  
Vol 69 (7) ◽  
pp. 1826-1829
Author(s):  
Claudiu Babis ◽  
Augustin Semenescu ◽  
Oana Roxana Chivu ◽  
Maria Alina Gligor ◽  
Gabriel Iacobescu ◽  
...  
Keyword(s):  
Production System ◽  
Arc Welding ◽  
Welding Process ◽  
Practical Method ◽  
Machine Building ◽  
Short Exposure ◽  
Metal Bath ◽  
Coated Electrode ◽  
Manual Arc Welding ◽  
Arc Welding Process

The occupational risk assessment of a machine building company must cover each activity and workstation, taking into account each component of the production system (work system), each workload, work equipment and the work environment. This assessment is an extremely complicated and complex issue since the production system of such an enterprise is particularly complex and complicated. Welding assembly is a highly polluting technology process, especially of the atmosphere and soil. The formation of gases in the welding process is the result of burning of the electrodes, powders, forming the molten metal bath and making the weld seam. Welding operators are exposed to smoke and toxic gases resulting from the welding process, which can in many cases be hazardous to health. Many acute intoxications that may be caused by excessive exposure to or short exposure to smoke and gas resulting from the welding process have been studied over time. In the paper are presented the elements of risk related to the welding process and the most widespread occupational diseases that can occur in the ranges of the welding operators. The following are presented the noxious emissions from welding and are determined by a practical method the emission of noxious at welding deposition of a welding sample, using the manual arc welding process with coated electrode.

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