The Paton Welding Journal, 2002, №10

2002 №10 (05)

2002 №10 (07)

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The Paton Welding Journal, 2002, #10, 27-30 pages

System of diagnostics of electron beam in installations for electron beam welding

K.S. Akopiants, O.K. Nazarenko, V.V. Gumovsky, V.P. Chernyakin

E.O. Paton Electric Welding Institute of the NASU 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine.

Abstract
System provides longitudinal image of beam with a distribution of a power density. A focus position with +-1 mm accuracy, minimum radius, maximum density of current, angle of convergence are determined. Conclusion is given about the gun cathode serviceability. Using this system the current of a magnetic deflecting lens with ±0.5-0.7 % accuracy, required for beam focusing at a required distance to the workpiece, is determined.
Keywords: electron beam welding, reproducibility of welds, beam diagnostics, focus position, minimum radius of beam, power distribution, method of «plate edge», application in installations, measurement error

References

1. Sanderson, A. (1968) Electron beam delineation and penetration. Welding J., 10, 509-523.
2. Nazarenko, O.K., Lokshin, V.E., Akopiants, K.S. (1970) Measuring of parameters of powerful electron beam by rotary probe method. Elektron. Obrab. Materialov, 1, 87-90.
3. Elmer, J.W., Teruya, A.T. (2001) An enhanced Faraday cup for rapid determination of power density distribution in electron beams. Welding J., 12, 288-295.
4. Dilthey, U., Weiser, J. (1995) Study of the «Tool» electron beam. Part 1. Comparison between the Arata beam test and beam measurement. Welding and Cutting, 5, 82-84.
5. Paton, B.E. (2001) Modern electron beam technologies of the E.O. Paton Electric Welding Institute of the NAS of Ukraine. The Paton Welding J., 2, 2-7.
6. Zinchenko, N.S. (1961) Lectures on electron optics. Kharkiv: KhGU.
7. Lankin, Yu.N. (1984) Accuracy of experimental evaluation of current density distribution in section of electron beam. Avtomatich. Svarka, 4, 69-70.

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Suggested Citation

K.S. Akopiants, O.K. Nazarenko, V.V. Gumovsky, V.P. Chernyakin (2002) System of diagnostics of electron beam in installations for electron beam welding. The Paton Welding J., 10, 27-30.

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