Abstract
A theoretical and experimental study of heat flow and solidification during the autogenous GTA welding of aluminum plates was carried out. The theoretical part of the study involves the development of a computer model which describes three-dimensional heat flow during welding. The model, though valid for any plate thickness, is particularly useful for moderately thick plates since both full- and partial-penetration welds can be considered. The experimental part of the study, on the other hand, involves the measurement of the thermal response of the workpiece during welding, and the examination of the configuration, grain structure, and subgrain structure of the fusion zone. The experimental results were compared with the calculated ones and the agreement was very good. With the help of the computer model, the effects of welding parameters on weld penetration in moderately thick plates were discussed. These parameters are the heat input per unit length of the weld, the thickness of the workpiece, the preheating of the workpiece, and the power-density distribution of the heat source.
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References
D. Rosenthal:Welding Journal, 1941, vol. 20, p. 220s.
P. S. Myers, O. A. Uyehara, and G. L. Borman: Welding Research Council Bulletin No. 123, July 1967, Welding Research Council, New York, NY.
E. Friedman: in “Numerical Modeling of Manufacturing Processes”, R. F. Jones, Jr., ed., The American Society of Mechanical Engineers, New York, NY, 1977, p. 35.
S. S. Glickstein, E. Friedman, and W. Yensicavich:Welding Journal, 1975, vol. 54, p. 113s.
S. Kou: in “Modeling of Casting and Welding Processes”, H. D. Brody and D. Apelian, eds., TMS-AIME, Warrendale, PA, 1981, p. 129.
S. Kou:Metall. Trans. A, 1981, vol. 12A, p. 2025.
S. Kou:Metall. Trans. A, 1982, vol. 13A, p. 363.
Y. Sharir, A. Grill, and J. Pelleg:Metall. Trans. B, 1980, vol. 11B, p. 257.
V. Pavelic, L. R. Tanbakuchi, O. A. Uyehara, and P. S. Myers:Welding Journal, 1969, vol. 48, p. 295s.
Aluminum Standards and Data, 5th edition, The Aluminum Association, New York, NY, 1976, pp. 38 and 40.
W. F. Savage, C. D. Lundin, and A. H. Aronson:Welding Journal, 1965, vol. 44, p. 175s.
M. C. Flemings:Solidification Processing, McGraw-Hill, New York, NY, 1974, p. 150.
W. F. Savage, S. S. Strunk, and Y. Ishikawa:Welding Journal, 1965, vol. 44, p. 489s.
S. S. Glickstein and W. Yeniscavich: Welding Research Council Bulletin No. 226, Welding Research Council, New York, NY, 1977.
J. F. Key:Welding Journal, 1980, vol. 59, p. 365s.
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Formerly with the Department of Metallurgical Engineering and Materials Science, Carnegie-Mellon University, Pittsburgh, PA
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Kou, S., Le, Y. Three-dimensional heat flow and solidification during the autogenous GTA welding of aluminum plates. Metall Trans A 14, 2245–2253 (1983). https://doi.org/10.1007/BF02663298
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DOI: https://doi.org/10.1007/BF02663298