1Shelyagin, VD, 1Lukashenko, AG, 1Khaskin, VYu., 1Lukashenko, DA, 1Lukashenko, VA
1Ye.O. Paton Electric Welding Institute of NASU, Kyiv
Sci. innov. 2014, 10(5):31-35
Section: Research and Technical Innovative Projects of the National Academy of Sciences of Ukraine
Language: English

Equipment for laser welding complex, which can apply to machine-building, aerospace, shipbuilding, and automobile industries, has been designed and manufactured on the basis of technique for automated laser welding of flat tubes made of copper-nickel alloys. A method for controlling the integrity of welded flat tubes has been developed. It implies the pressure tests and the search of defective sections by laser interferometry technique in automated mode. A specialized welding head has been designed and manufactured for industrial application of laser welding technique.

Keywords: copper-nickel alloys, laser welding, marine heat exchangers, pulse-modulated radiation, slitting compounds

1. Some Specific Features of Manufacture and Application of Welded Heat Exchangers. ATIS-Lab.
Available at: http://atislab.ru/info/articles/1560 (in Russian).
2. Compabloc® Plate Heat Exchanger. Teploenergo Design Office. Available at:
http://www.teploenergo.od.ua/index.php?page=plastinchatyjteploobmennik-c... (in Russian).
3. Medvetskii, V.M., Skripchenko, A.I., Popov, V.O., and Seifulin, D.E.: Laser Welding of Thin-Walled Cooling Panels and Heat Exchangers. Available at:
http://www.mirprom.ru/public/lazernayasvarka-tonkostennyh-ohlazhdayushch... (in Russian).
4. Laser Welding of Heat Exchangers. Lazerform. Available at:
(in Russian).
5. Cherepanov, A.N., Afonin, Yu..V., Malikov A.G., and Orishich, A.M.: On Application of Nano-Powders of High-Melting Compounds for Laser Welding and Treatment of Metals and Alloys. Heavy Mechanical Engineering. 4/2, 25—26 (2008) (in Russian).
6. Shelyagin, V.D., Lukashenko, A.G., Lukashenko, D.A., Khaskin, V.Yu, Siora, O.V. and Bernadskyi, A.V.: Patent of Ukraine no. 68159. Laser Welding Technique. MPK (2012.01) B23K 26/00 (2012) (in Ukrainian).
7. Klimenko, I.S. (1985). Holography of Focused Images and Speckle Interferometry. Moscow: Nauka (in Russian).