Abstract—A technique for the calculation of the steady-state temperature field in a solid part of a welded workpiece has been developed by using a moving weld pool size as input data and a boundary element method for solving the heat conduction problem. The technique allows one to calculate the effective power and thermal efficiency of a heat source. An example of a through-penetration arc welding with a tungsten electrode for the case of a 4-mm-thick aluminum alloy 1565chMU reveals the temperature gradient distributions and cooling rate at the pool boundary. A good agreement is observed between the calculated and experimental thermal cycles. The distribution of hardness in the cross section of a butt weld is presented.
Similar content being viewed by others
REFERENCES
Kumar, A., Zhang, W., Kim, C.H., and Debroy, T., A smart bi-directional model of heat transfer and free surface flow in gas metal arc fillet welding for practicing engineers, in Mathematical Modeling of Weld Phenomena 7, Cerjak, H., Bhadeshia, H.K.D.H., and Kozeschnik, E., Eds., Graz: Tech. Univ. Graz, 2005, pp. 3–37.
Karkhin, V.A., Plochikhine, V.V., Ilyin, A.S., and Bergmann, H.W., Inverse modeling of fusion welding processes, Weld. World, 2002, vol. 46, nos. 11–12, pp. 2–13.
Karkhin, V.A., Khomich, P.N., Ossenbrink, R., and Mikhailov, V.G., Determination of temperature field in laser welding, Svar. Proizvod., 2006, no. 10, pp. 3–6.
Karkhin, V.A., Teplovye protsessy pri svarke (Thermal Processes in Welding), St. Petersburg: Polytech. Univ., 2015, 2nd ed.
Makhnenko, V.I., Petun, L.A., Prilutskii, V.P., and Zamkov, V.M., Thermal processes near a moving weldpool bath, Avtom. Svarka, 1969, no. 11, pp. 1–6.
Radaj, D., Welding Residual Stresses and Distortion: Calculation and Measurement, Duesseldorf: DVS-Verlag, 2003.
Breev, V.K. and Karkhin, V.A., Analysis of the influence of the geometric shape of welded joints on the path of cracks and the parameters of fracture mechanics by the method boundary element, Avtom. Svarka, 1989, no. 1, pp. 11–18.
Hang, M. and Okada, A., Computation of GMAW welding heat transfer with boundary element method, Adv. Eng. Software, 1993, vol. 16, pp. 1–5.
Ghassabzadeh, M., Ghassemi, H., and Nahali, M., Study of welding temperature history by dual reciprocity boundary element method, Modares Mech. Eng., 2011, vol. 11, no. 3, pp. 95–103.
Banerjee, P.K. and Butterfield, R., Boundary Element Methods in Engineering Science, London: McGraw-Hill, 1981.
Brebbia, C.A., Telles, J.C.F., and Wroubel, L.C., Boundary Element Techniques: Theory and Applications in Engineering, Berlin: Springer-Verlag, 1984.
Zykov, S.A., Influence of construction and technological factors of welding on the properties of welded joints from aluminum alloys at cryogenic temperatures, Extended Abstract of Cand. Sci. (Eng.) Dissertation, St. Petersburg: Prometey Central Sci. Res. Inst. Struct. Mater., 2016.
Author information
Authors and Affiliations
Corresponding author
Additional information
Translated by O. Polyakov
Rights and permissions
About this article
Cite this article
Karkhin, V.A., Khomich, P.N., Panchenko, O.V. et al. Calculation of Thermal Processes around Moving Molten Pool Using Boundary Element Method. Inorg. Mater. Appl. Res. 9, 1169–1174 (2018). https://doi.org/10.1134/S2075113318060114
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S2075113318060114