Testing the Technology of Pulsed Laser Welding of Thin-Walled Shell Structures of Steel 12Х18Н10Т on the BULAT LRS 300 Installation

The work was carried out by combining the efforts of the staff of the Department of Welding and metallurgical technologies and Technopark of the Federal State Budget Educational Institution of Higher Education Komsomolsk-on-Amur State University. The article considers the results of laser welding introduction into the technological process of the critical structure production on the example of parts (housing and fastening element) of the PeA12 piezoelectric accelerometer. The laser welding modes for circular seams of thin-walled shell structures have been developed. Welding equipment has been designed and manufactured. Mechanical and tightness tests were carried out, which showed positive results that meet the technical requirements for the accelerometer welded joints.

References

[1] Grigor’yants A.G., ed. Tekhnologicheskie protsessy lazernoy obrabotki [Technological processes of laser processing]. Moscow, Bauman MSTU Publ., 2006. 663 p.

[2] Ready J.F., Farson D.F., Feeley T., eds. LIA handbook of laser materials processing. Orlando, LIA, 2001. 704 p.

[3] Panteleenko F.I., Devoyno O.G., Lapkovskiy A.S., et al. Peculiar features of laser welding process for dissimilar materials on ferrum or copper-nickel base. Nauka i tekhnika [Science & Technique], 2014, no. 1, pp. 7–11 (in Russ.).

[4] Gnyusov S.F., Orishich A.M. Structural-phase state and mechanical properties of welded joints at laser welding of titanium and stainless steel. Izvestiya Tomskogo Politechnicheskogo Universiteta [Bulletin of the Tomsk Polytechnic University], 2012, vol. 321, no. 2, pp. 94–99 (in Russ.).

[5] Bakhmatov P.V., Pletnev N.O. Influence of modes of laser welding of thin-walled structures on the structure and properties of welded joints of stainless steel steels’. Uchenye zapiski Komsomol’skogo-na-Amure gosudarstvennogo tekhnicheskogo universiteta [Scientific Notes of Komsomolsk-on-Amour State Technical University], 2019, vol. 1, no. 2, pp. 82–89 (in Russ.).

[6] Shelyagin V.D., Lukashenko A.G., Lukashenko D.A., et al. Laser welding of thin sheet stainless steel. Avtomaticheskaya svarka [Automatic Welding], 2011, no. 4, pp. 45–49 (in Russ.).

[7] Li S., Chen G., Katayama S., et al. Relationship between spatter formation and dynamic molten pool during high-power deep-penetration laser welding. Appl. Surf. Sci., 2014, vol. 303, pp. 481–488, doi: https://doi.org/10.1016/j.apsusc.2014.03.030

[8] Gol’tsev V.Yu. Metody mekhanicheskikh ispytaniy i mekhanicheskie svoystva materialov [Methods of mechanical tests and mechanical properties of materials]. Moscow, MIFI Publ., 2012. 226 p.

[9] Ushakov A.B., Morozova O.P., Begunov I.A., et al. Laser welding technology for major pipelines. Gazovaya promyshlennost’ [Gas Industry], 2017, no. S2, pp. 100–107 (in Russ.).

[10] Lippold J.C., Kotecki D.J. Welding metallurgy and weldability of stainless steels. Wiley, 2005. 376 p. (Russ. ed.: Metallurgiya svarki i svarivaemost’ nerzhaveyushchikh staley. Sankt-Petersburg, Izd-vo Politekhnicheskogo universiteta Publ., 2011. 467 p.).

[11] Shipilov A.V., Konovalov A.V., Brovko V.V., et al. Joint weld structure control during orbital TIG-welding of compressor plant industrial pipelines. Izvestiya vysshikh uchebnykh zavedeniy. Mashinostroenie [BMSTU Journal of Mechanical Engineering], 2011, no. 6, pp. 44–52, doi: http://dx.doi.org/10.18698/0536-1044-2011-6-44-52 (in Russ.).

[12] Grigor’yants A.G., ed. Lazernye additivnye tekhnologii v mashinostroenii [Laser additive technologies in machine building]. Moscow, Bauman MSTU Publ., 2018. 280 p.

[13] Kuryntsev S.V. Studies of the effect of thermal treatment on the distribution of chemical elements in the area of the weld fusion line obtained by focused laser radiation. Svarka i diagnostika [Welding and Diagnostics], 2019, no. 5, pp. 35–39 (in Russ.).

[14] Kuryntsev S.V., Gil’mutdinov A.Kh., Shiganov I.N. Welding with a defocused laser beam. Svarochnoe proizvodstvo, 2016, no. 2, pp. 36–47 (in Russ.). (Eng. version: Weld. Int., 2017, vol. 31, no. 2, pp. 151–156, doi: https://doi.org/10.1080/09507116.2016.1223919)

[15] Moskvitin G.V., Polyakov A.N., Birger E.M. Application of laser welding methods in industrial production. Svarochnoe proizvodstvo, 2012, no. 6, pp. 36–47 (in Russ.). (Eng. version: Weld. Int., 2013, vol. 27, no. 7, pp. 572–580, doi: https://doi.org/10.1080/09507116.2012.715953)