The Paton Welding Journal, 2003, №07

2003 №07 (04)

2003 №07 (06)

---

The Paton Welding Journal, 2003, #7, 19-24 pages

Calculation of temperature distribution along the electrode extension, taking into account the heat contributed by the drop

I.V. Pentegov, O.I. Petrienko

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

Abstract
A mathematical model has been developed of temperature distribution along the length of electrode extension in consumable electrode CO, arc welding, allowing for non-linearity of thermophysical coefficients and impact of heat contributed by the drop, which permits calculation of the temperature gradient and temperature in any point on electrode extension (from the nozzle to the drop). Recommendations are given on selection of electrode extension size.
Keywords: arc welding, carbon dioxide gas, electrode ex¬tension, mathematical model, calculation, temperature, heat conductivity, temperature distribution

References

1. Akulov, A.I. (1966) On quantity of heat contributed to the arc by the electrode heated in the extension. Avtomatich. Svarka, 5, 35–38.
2. Antipov, V.V. (1971) CO,welding with thin electrode wire at increased speed of gas flow. Syn. of Thesis for Cand. of Techn. Sci. Degree. Moscow: N.E. Bauman MVTU.
3. Varukha, E.N. (1997) Allowance for wire preheating in the mathematical model of electrode melting during mechanized welding. In: Proc. of Russian Sci.-Techn. Conf. on Current Problems of Welding Science and Technology, Voronezh, 1997. Voronezh: SABA.
4. Dubovetsky, S.V. (1982) Investigation and development of calculation procedure of COy welding modes for low carbon and low-alloyed steels. Syn. of Thesis for Cand. of Techn. Sci. Degree. Kyiv.
5. Marishkin, A.K. (1970) Investigation of electrode wire heating, melting and evaporation in arc welding. Syn. of Thesis for Cand. of Techn. Sci. Degree. Chelyabinsk.
6. Panibrattsev, B.K. (1978) Calculation of electrode wire feed rate in C02-welding with a short arc. Svarochn. Proiz-vodstvo, 11, 42-43.
7. Paton, B.E. (1953) Automatic electric arc welding. Kyiv: Mashgiz.
8. Rykalin, N.N. (1951) Calculations of thermal processes in welding. Moscow: Mashgiz.
9. Quinn, T.P., Madigan, R.B., Siewert, T.A. (1994) An electrode extension model for gas metal arc welding. Welding J., 10, 241–248.
10. So, O.K., de Boer, F.G. (2001) Analysis of standoff estimation algorithms in GMAW short-circuit transfer mode. Austral. Welding J., 46, 33–39.
11. Zhukovskv, V.S. (1969) Principles of heat transfer theory. Leningrad: Energiya.
12. Pentegov, I.V., Petrienko, O.I. (2002) Method of calculation of voltage drop in electrode stickout length with allowance for non-linearitv of thermophysical parameters. The Paton Welding J., 4, 27–30.
13. Lebedev, A.V. (1978) Influence of heat evolution in electrode extension on arc self-regulation. Avtomatich. Svarka, 7, 10–15.
14. Paton, B.E. (1948) Investigation of electrode heating process in automatic submerged-arc welding. In: Transact, on Automatic Welding, 13–28.
15. Paton, B.E., Shejko, P.P. (1965) Metal transfer control in consumable electrode arc welding. Avtomatich. Svarka, 5, 1–7.
16. Potapievsky, A.G. (1974) Consumable-electrode gas-shielded welding. Moscow: Mashinostroenie.
17. Chubukov, A.A. (1978) Study and improvement of reliabi lity of consumable electrode C02 arc welding. Syn. of Thesis for Cand. of Techn. Sci. Degree. Kyiv.
18. Shejnkin, M.Z. (1978) Determination of admissible thin electrode wire extension in CO2-welding. Svarochn. Proiz-vodstvo, 9, 24–28.
19. (1987) Untersuchung der Kontaktverhaeltnisse bei der Stromuebertragung auf den Schweissdraht. Wissen schaftliche Zeitschrift der Technischen Universitaet «Otto von Guericke», Magdeburg, 4, 96–102.
20. Holm, R. (1961) Electric contacts. Moscow: Inostr. Literatura.
21. Koshkaryov, B.T., Mikhajlov, A.N., Budnik, N.M. (1971) Influence of electrode extension on melting electrode pro¬cess in C02-welding. Svarochn. Proizvodstvo, 11, 30–32.

---

Suggested Citation

I.V. Pentegov, O.I. Petrienko (2003) Calculation of temperature distribution along the electrode extension, taking into account the heat contributed by the drop. The Paton Welding J., 07, 19-24.

---