The Paton Welding Journal, 2003, №07

2003 №07 (06)

2003 №07 (08)

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The Paton Welding Journal, 2003, #7, 32-35 pages

Optimizing of condition parameters of narrow-gap arc welding of quenching steels without preheating

A.T. Nazarchuk

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

Abstract
Engineering calculation of optimum rate of cooling metal being welded (to provide the technological strength) depending on welding process parameters and section of weld layers, and also with allowance for CCT diagram of overcooled austenite decay is suggested.
Keywords: arc welding, quenching steels, multilayer welds, welded joints, delayed fracture, cold cracks, portion heat input

References

1. (1974) Technology of fusion electric welding of metals and alloys. Ed. by B.E. Paton. Moscow: Mashinostroenie.
2. Gotalsky, Yu.N., Snisar, V.V., Kuporev, A.L. et al. Arc welding method of quenching steels. USSR athor's cert. 880671. Int. CI. B 23 K 28/00. Publ. 14.07.81.
3. Nazarchuk, A.T. (1994) Control of weld metal solidification and thermodeformational cycle in automatic arc welding. Avtomatich. Svarka, 5/6, 3–9.
4. Nazarchuk, A.T. (1997) Influence of portion-discrete weld formation on thermal cvcle in fusion arc welding. Ibid., 5, 13–17.
5. Nazarchuk, A.T. (1994) Resistance of joints of quenching steels with multilayer welds to cold cracking. Ibid., 1, 15–19.
6. Rykalin, N.N. (1951) Calculation of thermal processes in welding. Moscow: Mashgiz.
7. Petrov, G.L., Tumarev, A.S. (1967) Theory of welding processes. Moscow: Vysshaya Shkola.
8. Popov, A.A., Popova, L.E. (1965) Isothermal and thermo-kinetic diagrams of decomposition of supercooled austenite. Heat-treater's refer, book. Moscow: Metallurgiya.

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Suggested Citation

A.T. Nazarchuk (2003) Optimizing of condition parameters of narrow-gap arc welding of quenching steels without preheating. The Paton Welding J., 07, 32-35.

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