The Paton Welding Journal, 2002, №06

2002 №06 (04)

2002 №06 (06)

---

The Paton Welding Journal, 2002, #6, 21-24 pages

Numerical modelling of the process of formation of a molten metal drop at the tip of a consumable electrode

N.M. Tarasov, A.K. Gorlov, S.N. Lashko

National Aerospace University «Kharkiv Aviation Institute», Kharkiv, Ukraine

Abstract
The paper describes a numerical method of determination of the weight and mean temperature of the drop at the tip of a consumable electrode in arc welding. Changes in thermophysical characteristics of a material, availability of phase transitions and programmed change of arc current are taken into account. Calculation data for drops of copper, titanium, and aluminium coincide with the experiment with the accuracy commensurate with experimental error. Programmed variation of arc current widens the capability of adjustment of temperature and weight of the molten metal drops
Keywords: drops, consumable electrode, arc, numerical method, modelling, calculation, experiment, accuracy, identity

References

1. Tarasov, N.M. (1981) Peculiarities of formation of molten metal drops at the tip of electrode at its cooling by a massive nozzle. Svarochn. Proizvodstco, S, 7-8.
2. Lykov, A.V. (1978) Heat exchange. Moscow: Energiya.
3. Samarsky, A.A. (1977) Theory of difference schemes. Moscow: Nauka.
4. (1976) Tables of physical values. Refer. Book. Ed. by EK. Kikoin. Moscow: Atomizdat.
5. (1956) Thermophysieal properties of substances. Refer. Book. Ed. by N.B. Vargaltik. Moscow: Gosenergoizdat.
6. Stolovich, N.N., Minitskaya, N.S. (1975) Temperature dependencies of thermal-physical properties of some metals. Minsk: Nauka i Tekhnika.

---

Suggested Citation

N.M. Tarasov, A.K. Gorlov, S.N. Lashko (2002) Numerical modelling of the process of formation of a molten metal drop at the tip of a consumable electrode. The Paton Welding J., 06, 21-24.

---