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2002 №08 (10) 2002 №08 (02)


The Paton Welding Journal, 2002, #8, 2-9 pages

Computer program "Welding of tubes to tube sheets of heat exchangers"

V.I. Makhnenko1, E.A. Velikoivanenko1, O.V. Makhnenko1, G.F. Rozynka1, N.I. Pivtorak1, P. Seyffarth2, K. Bautzmann3

1E.O. Paton Electric Welding Institute of the NASU 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine.
2SLV M V GmbII, Mecklenburg, Germany
3INFRACOR, Germany

Abstract
Considered are the principles of basic physical-chemical processes (plastic deformation, mass transfer, phase formation) accompanying formation of joints in dissimilar materials (copper, titanium, aluminium and their alloys, as well as different grades of steels) characterised by a limited mutual solubility under pressure joining conditions for a wide range of external loading rates (1x10-4 -1x105 s-1).
Keywords: computer program, mathematical modelling, calculation algorithms, electric arc welding, tubes, tube sheet, heat exchanger, data bank, temperature fields, chemical composition, microstructure, TTT diagram, Schaeffler diagram, HAZ, process quality, kinetics of distortions, residual stresses, cold cracks

References

1. Makhnenko, V.I., Velikoivancnko, E.A., Makhnenko, O.V. ct al. (1999) Computer-aided modeling of welded processes as the mean of prediction of defects in welded joints. Avtomatich. Svarka, 12, 10-19.
2. Makhnenko, V.I., Velikoivancnko, E.A., Kravtsov, T.G. ct al. (2001) Numerical studies of thermomechanical processes in surfacing of shafts of ship mechanisms. The Paton Welding J., 1, 2-10.
3. Seyffarth, P., Kasatkin, O.G. (1982) Calculation of struc¬tural transformations of the welding process. Doc. IIW-1228-82.
4. (1991) Atlas of time-temperature diagrams for irons and steels. Ed. by C.V. Vander Voort. ASM.
5. Makhnenko, V.I. (1975) Computational methods of investigation of welded stress and strain kinetics. Kyiv: Naukova Dumka.
6. Ueda, Y., Murakawa, II., Nakacho, K. at al. (1995) Establishment of computational welding mechanics. Transact, of JWRI, 2, 73-86.
7. Makhnenko, V.I., Lobanov, L.M., Makhnenko, O.V. (1991) Prediction of total deformations of welded assemblies on the base of data bank on transverse and longitudinal shrinkage and angular deformations of appropriate speci¬mens. Avtomatich. Svarka, 10, 1-5.

Suggested Citation

V.I. Makhnenko, E.A. Velikoivanenko, O.V. Makhnenko, G.F. Rozynka, N.I. Pivtorak, P. Seyffarth, K. Bautzmann (2002) Computer program "Welding of tubes to tube sheets of heat exchangers". The Paton Welding J., 08, 2-9.