New technology for welding aluminum and its alloys

Bagautdinova, L. N.; Basyrov, R. Sh.; Galimzyanov, I. I.; Gaysin, Al F; Gaysin, Az F; Gaysin, F M; Fakhrutdinova, I. T.

doi:10.1016/j.matpr.2019.08.239

Cited by 3 publications

(2 citation statements)

References 2 publications

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“…sheet welding machines have a certain degree. However, for the locating of the welding position of the annular weld, that is, the distance between the tungsten and the outer wall of the tube, the tungsten and the tube sheet, the special tube sheet welding machine still relies on manual positioning of the annular seam one by one, and the consistency of welding quality is difficult to guarantee [5]. Moreover, it is difficult for the special tube-sheet welding machine to adapt to the thermal deformation of tube-sheet welding, and the welding process requires manual observation and intervention throughout the process, resulting in a harsh working environment and high labor intensity [6].…”

Section: Introductionmentioning

confidence: 99%

Tube Sheet Annular Seam Measurement Technology Based on Laser Collaboration With Vision Sensor

Wang

Kong

et al. 2023

IEEE Access

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The fast and accurate locating of the tube-sheet annular seam is the key factors to ensure the high efficiency and quality of automatic welding of pressure vessels. Considering the problems of welding sheet deformation and tubes deviation caused by machining process and welding thermal, this paper builds an automatic welding robot platform, which is equipped with a measurement system coordinated by multiple lasers and visual sensors, and put forward a real-time welding distance measurement method based on cross lasers and visual sensors, at the same time, the multi spot laser assisted vision sensor is used to quickly and accurately measure the center of the tube, so as to guide the adjustment of the welding robot and posture of the welding torch in real time. Then, through the measurements of system error, static and dynamic measurement error, it is known that the dynamic accuracy of tube sheet welding distance is not less than 0.22mm, and the positioning accuracy of welded tube center is not less than 0.219mm, which can meet the accuracy requirements of automatic tube sheet welding.

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Section: Introductionmentioning

confidence: 99%

Tube Sheet Annular Seam Measurement Technology Based on Laser Collaboration With Vision Sensor

Wang

Kong

et al. 2023

IEEE Access

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“…While the flow processes in gas-liquid flows with discharges are practically not studied, both experimentally and theoretically. The urgency of solving the indicated problem lies in the fact that the study of electric discharges of direct and alternating current in a gas-liquid medium with a bubble structure is of great practical and scientific interest [5][6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Analysis of the characteristics of the direct current discharge in the electrolyte medium at low pressure

Valiev

Khafizov

Bagautdinova

et al. 2022

J. Phys.: Conf. Ser.

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The results of experimental studies of direct current electric discharge in the gas-liquid medium of an electrolyte with bubbles for various interelectrode distances (l=50-150 mm) inside a dielectric tube are presented. The presence of a bubble structure with microdischarges affects the nature of the discharge current and voltage ripples. The frequency spectrum of voltage and current oscillations of the discharge was established using the fast Fourier transform. Based on the analysis of experimental data, a mechanism for the development of a direct current electric discharge with a gas-liquid medium with air bubbles and microdischarges has been established.

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