An analytical model of the heat flow during pulsed welding is constructed by first developing a solution for the temperature distribution due to an instantaneous, stationary, Gaussian heat source. This solution is first extended to treat the case of a moving heat source for a single pulse and then extended to treat the case of pulsed welding by summing the temperature changes due to a series of pulses. Test gas tungsten arc welds in mild steel are used to confirm the validity of the model.
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References
1.
DAVIESG. J. and GARLANDJ. G.: int. Metall. Rev., 1975, 20, 83–106.
2.
GARLANDJ. G.: Br. Weld. J.,1974, 6, (4), 121–127.
3.
GOKHALEA. A., TZAVARASA. A., BRODYH. D., and ECERG. M.: in Proc. Conf. ‘Grain refinement in castings and welds’, (ed. AbbaschianJ. A. and DavidS. A.); 1983; Warrendale, PA, The Metallurgical Society of AIME.
4.
SHARIRY., PELLEGJ., and GRILLA.: Met. Technol.,1978, 5, (6), 190–196.
5.
BECICERD. W. and ADAMSC. M.: Weld. J., 1979, 58, (5), 143s-152s.
6.
EASTERLINGK. E.: in Proc. Conf. ‘Recent trends in welding science and technology’, (ed. DavidS. A. and VitekJ. M.); 1990, Materials Park, OH, ASM International.
7.
LIW. B., VISHNUP. RAVI, and EASTERLINGK. E.: in Proc. 2nd NOLAMP Conf., ‘Nordic laser materials processing’, (ed. MagnussonC.; 1989, Lulea, Sweden, Lulea University.
8.
ZACHARIAT., DAVIDS. A., VITEKJ. M., and DEBROYT.: Metall. Trans.,1989, 20A, (5), 957–967.
9.
ROSENTHALD.: Weld. J., 1941, 20, 220s-234s.
10.
CLINEH. E. and ANTHONYT. R.: J. Appl. Phys.,1977, 48, (9), 3895–3900.
11.
EAGART. W. and TSAIN. S.: Weld. J., 1983, 62, (12), 346s-355s.
12.
ASHBYH. F. and EASTERLINGK. E.: Acta Metall.,1984, 32, (11), 1934–1948.
13.
RYKALINN., UGLOWA., and KOKORAA.: ‘Laser machining and welding’; 1978, Oxford, Pergamon Press.
14.
CARSLAWH. S. and JAEGERJ. C.: ‘Conduction of heat in solids’, 2 edn; 1959, Oxford, Oxford University Press.
15.
GANAHAT. and KERRH. w.: Met. Technol.,1978, 5, (2), 62–69.
16.
TSAIN. S. and EAGART. W.: Metall. Trans.,1985, 16B, (12), 841–846.
