Numerical analysis of fully penetrated weld pools in gas tungsten arc welding

Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science

Volumn 210, Issue 2, 1996, Pages 187-195

  Zhang, Y M ^a   Cao, Z N ^a   Kovacevic, R ^a  

^a UNIVERSITY OF KENTUCKY   (United States)

Author keywords

Fluid flow; Full penetration; Gta weld pool; Heat transfer; Numerical modelling

Indexed keywords

BUOYANCY; FLOW OF FLUIDS; HEAT CONVECTION; MATHEMATICAL MODELS; NUMERICAL ANALYSIS; SURFACE TENSION; SURFACES; TEMPERATURE DISTRIBUTION; THREE DIMENSIONAL; TUNGSTEN;

BUOYANCY FORCE; ELECTROMAGNETIC FORCE; WELD POOLS;

ELECTRIC ARC WELDING;

EID: 0029716616     PISSN: 09544062     EISSN: None     Source Type: Journal    
DOI: 10.1243/PIME_PROC_1996_210_185_02     Document Type: Article

References (35)

1. Atthey, D. R. A mathematical model for fluid flow in a weld pool at high current. J. Fluid Mechanics, 1980,98,787-801.
2. Oper, G. M. and Szekely, J. Heat and fluid flow phenomena in weld pools. J. Fluid Mechanics, 1984,147,53-79.
3. Chan, C, Mazumder, J. and Chan, M. M. A two-dimensional transient model for convection in laser melted pools. Metall. Trans., 1984, ISA, 2175-2184.
4. Kou, S. and Wang, Y. H. Computer simulation of convection in moving arc weld pools. Metall. Trans., 1986,17A, 2271-2277.
5. Tsao, K. C. and Wu, C. S. Fluid flow and heat transfer in GTA weld pools. Weld. J., 1988,67(3), 70s-75s.
6. Kirn, S. D. and Na, S. J. A study of heat and mass flow in stationary gas tungsten arc welding using the numerical mapping method. Proc. Instn Mech. Engrs, Part B, 1989,203(B4), 233-242.
7. Rokhlin, S. I. and Guu, A. C. A study of arc force, pool depression, and weld pool penetration during gas tungsten arc welding. Weld. J., 1993, 72(8), 381s-390s.
8. Lin, M. L. and Eagar, T. W. Influence of surface depression and convection on arc weld pool geometry. Transport Phenomena in Materials Processing, 1983, ASME-PED 10,63-69.
9. Lin, M. L. and Eagar, T. W. Influence of arc pressure on weld pool geometry. Weld. J., 1985,64(6), 163s-169s.
10. Thompson, M. E. and Szekely, J. The transient behavior of weld pools with a deformed free surface. Int. J. of Heat and Mass Transfer, 1989, 32(6), 1007-1019.
11. Choo, R. T. C. and Szekely, J. Modeling of high-current arc with emphasis on free surface phenomena in the weld pool. Weld. J., 1990,69(9), 223s-233s.
12. Tsai, M. C. and Kou, S. Marangoni convection in weld pools with a free surface. Int. J. Numer. Methods in Fluids, 1989, 9, 15031516.
13. Zacharia, T., et al. Three-dimensional transient model arc welding process. Metall. Trans., 1989,20B, 645-659.
14. Kim, S. D. and Na, S. J. Eflect of weld pool deformation on weld penetration in stationary gas tungsten arc welding. Weld. J., 1992, 71(5), 179s-193s.
15. Fireman, E. Analysis of weld puddle distortion and its effect on penetration. Weld.J., 1978,57(6), 161s-166s.
16. Ohji, T. and Nishiguchi, K. Mathematical modeling of molten pool in arc welding of thin plate. IIW DOC. 211-555-83,1983.
17. Kovacevic, R., Zhang, Y. M. and Ruan, S. Sensing and control of weld pool geometry for automated GTA welding. Trans. ASM E, J. Engng for Industry, 1995,117(2), 210-222.
18. Kovacevic, R. and Zhang, Y. M. Machine vision recognition of weld pool in GTAW. Proc. Instn Mech. Engrs, Part B, 1995, 208(B2), 141-152.
19. Kovacevic, R., Zhang, Y. M. and Li, L. Monitoring of weld penetration based on weld pool appearance. Accepted for publication in Research Supplement, Welding Journal.
20. Zhang, Y. M., et al. Determining joint penetration in GTAW with vision sensing of weld face geometry. Weld. J., 1993, 72(10), 463s469s.
21. Zhang, Y. M., Kovacevic, R. and Wu, L. Closed-loop control of weld penetration using front-face vision sensing. Proc. Instn Mech. Engrs, Part I, 1993, 207(11), 27-34.
22. Zhang, Y. M., Kovacevic, R. and Wu, L. Dynamic analysis and identification of gas tungsten arc welding process for full penetration control. Trans. ASME, J. Engng for Industry, 1996, 118(1), 123-136.
23. Kovacevic, R., Zhang, Y. M. and Ruan, S. Three-dimensional measurement of weld pool surface. Proceedings of the International Conference on Modeling and control of joining processes, Orlando, Florida, 8-10 December 1993, pp. 600-607 (American Society for Metals, Metals Park, Ohio).
24. Kovacevic, R. and Zhang, Y. M. Apparatus and method for measuring 3-D weld pool shape. US Pat. 5,481,085,2 January 1996.
25. Zhang, Y. M., Beardsley, H. and Kovacevic, R. Real-time image processing in 3D measurement of weld pool surface. Mfg Sci. Engng, 1994, PED-Vol 68-1,255-262 (ASME, New York).
26. Kovacevic, R. and Zhang, Y. M. Real-time image processing for monitoring of free weld pool surface. Trans. ASME, J. Engng for Industry, November 1996,118(4) (to appear).
27. Kim, S. D. and Na, S. J. A study on the three-dimensional analysis of heat and fluid flow in gas metal arc welding using boundaryfitted coordinates. Trans. ASME, J. Engng for Industry, 1994, 116(2), 78-85.
28. Choi, M. and Greif, R. A study of the heat transfer during arc welding with applications to pure metals temperature materials. Numer. Heat Transfer, 1987,11,477-489.
29. Tsai, N. S. and Eagar, T. W. Distribution of the heat and current fluxes in gas tungsten arcs. Metall. Trans., 1985,16B, 841-846.
30. Patankar, S. V. Numerical heat transfer and fluid flow, 1980 (McGraw-Hill, New York).
31. Tsai, N. S. and Eagar, T. W. Pressure produced by gas tungsten arcs. Metall. Trans., 1986,17B, 601-607.
32. Woods, R. A, and Milner, D. R. Motion in the weld pool in arc welding. Weld. J., 1971,50(4), 163s-173s.
33. Heiple, C. R. and Roper, J. R. Mechanism for minor element effects on GTA fusion zone geometry. Weld J., 1982, 61(4), 97s102s.
34. Xiao, Y. H. and Oduen, G. D. Weld pool oscillation during GTA welding of mild steel. Weld. J., 1993,71(8), 428s-434s.
35. Xiao, Y. H. and Oduen, G. D. A study of GTA weld pool oscillation. Weld. J., 1990,69(8), 289s-293s.