| 2007 №11 (02) | 2007 №11 (04) |
The Paton Welding Journal, 2007, #11, 10-15 pages
Properties and structure of hybrid laser-plasma welded joints in aluminium alloys
E.G. Ternovoj, V.F. Shulym, V.Yu. Khaskin, V.D. Shelyagin, A.V. Lozovskaya, A.V. Siora, A.V. Bernatsky
E.O. Paton Electric Welding Institute of the NASU. 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine.Abstract
The process of production of joints in aluminium alloys by the hybrid laser-plasma method was investigated. Peculiarities of properties and structure of these joints were studied. Welding experiments were conducted both with and without filler wire, which allowed porosity of the welded joints to be eliminated and their properties to be considerably improved.
Keywords: hybrid laser-plasma welding, aluminium alloys, filler wire, properties of joints, macro- and microstructure, porosity, microhardness, chemical heterogeneity, distribution of hydrogen
References
1. Arbuzov, Yu.P. (1990) Weldable aluminium alloys. Moscow: Mashinostroenie.2. Ryazantsev, V.I., Fedoseev, V.A. (1995) Production of welded cryogenic fuel tanks of aluminium alloys. Aviats. Promyshlenost, 7/8, 9–12.
3. Kolganov, I.M., Bashilov, A.S., Bogdanov, B.V. (1994) Production of panels with formed sections of advanced aluminium alloys. Ibid., 9/10, 3–5.
4. Bratukhin, A.G., Redchits, V.V., Lukin, V.I. (1996) Problems of production of welded structures for aerospace engineering. Svarochn. Proizvodstvo, 3, 22–25.
5. Ryazantsev, V.I., Fedoseev, V.A., Mantsev, V.N. (1999) Production of welded car bodies of aluminium alloys. Ibid., 11, 36–42.
6. Krivov, G.A., Ryabov, V.R., Ishchenko, A.Ya. et al. (1998) Welding in aircraft construction. Kiev: MIIVTs.
7. Rabkin, D.M. (1986) Metallurgy of fusion welding of aluminium and its alloys. Kiev: Naukova Dumka.
8. Rabkin, D.M., Ignatiev, V.G., Dovbishchenko, I.V. (1982) Arc welding of aluminium and its alloys. Moscow: Mashinostroenie.
9. Makarov, I.I., Volynsky, V.N., Prokhorov, N.N. (1976) Influence of pores and oxide inclusions on strength of AMg6 alloy welded joints. Avtomatich. Svarka, 4, 27–30.
10. Lukianov, V.F., Fomin, V.N., Mojseenko, V.P. et al. (1970) Influence of oxide inclusions on strength of welded joints on AMg6 alloy pressure vessels. Svarochn. Proizvodstvo, 6, 24.
11. Zubrienko, G.L., Tenenbaum, F.Z., Petrovanov, V.M. et al. (1977) About some factors influencing the oxide inclusion formation in welds on AMg6 alloy. Ibid., 5, 24–27.
12. Ryazantsev, V.I., Fedoseev, V.A., Grishin, V.V. et al. (1982) Influence of methods of surface preparation for welding on pore formation in welds of aluminium-magnesiumlithium alloy. Avtomatich. Svarka, 6, 53–54.
13. Ishchenko, A.Ya., Lozovskaya, A.V., Poklyatsky, A.G. et al. (1999) Structure and properties of joints produced in welding of AMg6 alloy using filler wires with scandium. Ibid., 4, 19–25.
14. Ueyama, T., Tong, H., Yazawa, I. et al. (2003) Aluminium alloy sheet welding by the laser AC pulsed MIG hybrid process. J. JILM, 41(12), 567–574.
15. Shtaufer, G. (2000) Laser hybrid welding. In: New Materials and New Prospects: Proc. of Int. Conf. on Welding and Joining (Israel, 18–20 June, 2000), 53–61.
16. Tusek, J. (1996) Synergic operation of welding arc and laser beam – for practical application or for scientific research only? Varilna Tehnika, 45(2), 39–46.
17. Diebold, T.P., Albright, C.E. (1984) «Laser-GTA» welding of aluminum alloy 5052. Welding J., 63(6), 18–24.
18. Dilthey, U., Lueder, F., (1999) Expanded capabilities in welding of aluminium alloys with laser-WIG hybrid process. Aluminium, 75(1/2), 64–75.
19. Ueyama, T., Tong, H., Yazawa, I. et al. (2003) Hybrid welding (laser + AC pulsed MIG) of thin aluminium sheets. Keikinzoku Yosetsu, 41(12), 9–16.
20. Paton, B.E., Gvozdetsky, V.S., Krivtsun, I.V. et al. (2002) Hybrid laser-microplasma welding of thin sections of metals. The Paton Welding J., 3, 2–6.
21. Rabkin, D.M., Lozovskaya, A.V., Sklabinskaya, I.E. (1992) Metals science of aluminium alloys. Kiev: Naukova Dumka.