Activated Flux TIG Welding Of Non-Ferrous Metals

Abstract

TIG welding process has high levels of stability and permits more refined control than the majority of other arc welding processes. The principal disadvantages of  TIG lie in the limited thickness of material which can be welded in a single pass. Activated  Flux Tungsten Inert Gas (A-TIG) welding can increase the joint penetration and weld depth/width ratio, thereby reducing angular distortion of the weldment. In this review paper, A-TIG welding properties of nonferrous metals are examined. How the flux increases the penetration depth is explained and then the effects of the  chemical composition and thickness of the flux are described in detail. 

Keywords

• TIG welding,A-TIG welding

References

1. Ahmed N., New developments in advanced welding, Woodhead Publishing Limited, Abington, 2005
2. Lucas W., Howse D., Activating flux – increasing the performance and productivity of the TIG and plasma process, Welding and Metal Fabrication, 64, 1996, 11-17
3. Lucas W., Howse D., Savitsky M.M., Kovalenko I.V., A-TIG flux for increasing the performance and productivity of welding processes, International Institute of Welding Document No. XII-1448-1996, 1996
4. Lucas W., Activating flux improving the performance of the TIG process, Welding and Metal Fabrication, (2/12), 2000, 7-10
5. Gurevich S.M., Zamkov V.N., Kushnirenko N.A., Improving the penetration of titanium alloys when they are welded by argon tungsten arc process, Avtomaticheskaya Svarka, 9, 1965, 1-4
6. Gurevich S.M., Zamkov V.N., Welding titanium with a non-consumable electrode using fluxes, Avtomaticheskaya Svarka,, 12, 1966, 13-16
7. Z. Zhang, L. Liu, H. Sun, L. Wang, AC TIG welding with single-component oxide activating flux for AZ31B magnesium alloys, Journal of Material Science, 43, 2008, 1382-1388
8. H.C. Dey, S.K. Albert, A.K. Bhaduri, U.K. Mudali, Activated flux TIG welding of titanium, Welding in the world, 57, 2013, 903-912

9. Howse D., Improved Productivity in Fusion Welding, PhD. Thesis, University of Warwick, 2002
10. Kumar R., Bharathi S., A Review Study on A-TIG Welding of 316(L) Austenitic Stainless Steel, International Journal of Emerging Trends in Science and Technology, 2, 2015, 2066-2072
11. Sandor T., Comparison of penetration profiles of different TIG process variations
12. Vikesh R., Jagjit R., Surin M., Effect of A-TIG Welding Process Parameters on Penetration in Mild Steel Plates, International Journal of Mechanical and Industrial Engineering, 3, 2013, 34-37
13. Azevedoa A.G.L., Ferraresia V.A.J., Farias J.P., Ferritic stainless steel welding with the A-TIG process, Welding International, 24, 2010, 571-578
14. Ahmadi E., A. R. Ebrahimi A.R., Khosroshahi A., Welding of 304L Stainless Steel with Activated Tungsten Inert Gas Process (A-TIG), International Journal of Iron and Steel Society of Iran, 10, 2013, 27-33
15. S. Sire and S. Marya, On the development of a new flux bounded TIG process (FBTIG) to enhance weld penetrations in aluminum 5086, International Journal of Forming Processes, 5, 2002, 39-51
16. Lin H.L., Wu T.M., Cheng C.M., Effects of Flux Precoating and Process Parameter on Welding Performance of Inconel 718 Alloy TIG Welds, Journal of Materials Engineering and Performance, 23, 2014, 125-132
17. B.Shah, B. Shah, A-TIG Welding Process- A Review Paper, International Conference on Ideas, Impact and Innovation in Mechanical Engineering 1-2 June 2017 Pune, India
18. R A. Singh, V. Dey, R. Rai, Techniques to improveweld penetration in TIG welding (A review), Materials Today: Proceedings 4, 1252–1259, 2017
19. Surendhiran.S, Kumar.K, Jayendran.M, REVIEW ON TIG WELDING ANG AND A-TIG WELDING ON ALUMINUM ALLOYS, International Research Journal of Engineering and Technology, 4, 913-916, 2017
20. Tanaka M., Effects of surface active elements on weld pool formation using TIG arcs, Welding International, 19, 2005, 870-876
21. Howse D.S., Lucas W., Investigation into arc constriction by active fluxes for tungsten inert gas welding, Science and Technology of Welding and Joining, 5, 2000, 189-193
22. Tseng K.H., Development and application of oxide-based flux powder for tungsten inert gas welding of austenitic stainless steels, Powder Technology, 233, 2013, 72-79
23. Simonik A G., The effect of contraction of the arc discharge upon the introduction of electro-negative elements, Welding Production, 3, 1976, 49-51
24. Tsai M.C., Kou S., Marangoni convection in weld pools with a free surface, International Journal of Numerical Methods of Fluids, 9, 1989, 1503 -1516
25. Limmaneevichitr C., Kou S., Visualization of marangoni convection in simulated weld pools, Welding Journal, 79, 2000, 126s–135s.
26. Lowke J.J., Tanaka M., Ushio M., Mechanisms giving increased weld depth due to a flux, Journal of Physics D: Applied Physics, 38, 2005, 3438-3445
27. R.H. Zhang ,J.I. Pan, S. Katayama, The mechanism of penetration increase in A-TIG welding, Frontiers of Materials Science, 5, 2011,109-118
28. Berthier A., Paillard P., Carin M., Valensi F., Pellerin S., TIG and A-TIG welding experimental investigations and comparison to simulation Part 1: Identification of Marangoni effect , Science and Technology of Welding and Joining, 17, 2012, 609-615
29. G. Ruckert, Etude de la contribution des flux activants en soudage A-TIG, These de Doctorat, Ecole Centrale de Nantes et l'Universite de Nantes, 2005
30. G. Ruckert, N. Perry, S. Sire, S. Marya, Enhanced Weld Penetrations In GTA Welding with Activating Fluxes Case studies: Plain Carbon and Stainless Steels, Titanium and Aluminum, HAL Archives, 2014
31. Y. Ruan , X.M. Qiu, W.B. Gong, D.Q. Sun, Y.P. Li, Mechanical properties and microstructures of 6082-T6 joint welded by twin wire metal inert gas arc welding with the SiO2 flux, Materials and Design, 35, 2012, 20-24
32. Sire S., Ruckert G., Marya S., Contribution to A-TIG and FB-TIG welding processes. Flux optimization for enhanced weld penetrations in aluminum 5086. International Institute of Welding Document No. XII-1715-02, 2002
33. Y. Huang, D. Fan, Q. Fan, Study of mechanism of activating flux increasing weld penetration of AC A-TIG welding for aluminum alloy, Frontiers of Mechanical Engineering in China, 2, 2007, 442-447
34. C.M. Lin, J.J. Liu, H.L. Tsai, C.M. Cheng, Evolution of microstructures and mechanical properties of AZ31B magnesium alloy weldment with active oxide fluxes and GTAW process, Journal of the Chinese Institute of Engineers, 34, 2011, 1013-1023
35. L.M. Liu, Z.D. Zhang, G. Song, and L. Wang, Mechanism and Microstructure of Oxide Fluxes for Gas Tungsten Arc Welding of Magnesium Alloy, Metallurgical and Materials Transactions A, 38A, 2007, 649-658
36. L.M. Liu, Y. Shen, Z.D. Zhang, Effect of cadmium chloride flux in GTA welding of magnesium alloys, Science and Technology of Welding and Joining, 11, 2006, 398-402
37. L. Liu, Z. Zhang, G. Song, Y. Shen, Effect of Cadmium Chloride Flux in Active Flux TIG Welding of Magnesium Alloys, Materials Transactions, 47, 2006, 446-449
38. L.M. Liu, D.H. Cai, Z.D. Zhang, Gas tungsten arc welding of magnesium alloy using activated flux-coated wire, Scripta Materialia, 57, 2007, 695-698
39. J. Shen, D. Zhai, Kai Liu, Z,M. Cao, Effects of welding current on properties of A-TIG welded AZ31 magnesium alloy joints with TiO2 coating, Transactions of Nonferrous Metals Society China, 24, 2014, 2507-2515
40. L. Wang, J. Shen., N. Xu, Effects of TiO2 coating on the microstructures and mechanical properties of tungsten inert gas welded AZ31 magnesium alloy joints, Materials Science and Engineering A, 528, 2011, 7276-7284
41. Marya M., Edwards G.R., Chloride Contributions in Flux-Assisted GTA Welding of Magnesium Alloys, Welding Journal, 81, 2002, 291s-298s
42. X. Xie, J. Shen, L. Cheng, Y. Li, Y. Pu, Effects of nano-particles strengthening activating flux on the microstructures and mechanical properties of TIG welded AZ31 magnesium alloy joints, Materials and Design, 81, 2015, 31-38
43. Z.D. Zhang, L.M. Liu, Y. Shen, L. Wang, Welding of magnesium alloys with activating flux, Science and Technology of Welding and Joining, 10, 2005, 737-743
44. Z.D. Zhang, L.M. Liu, Y. Shen, L. Wang, Mechanical properties and microstructures of a magnesium alloy gas tungsten arc welded with a cadmium chloride flux, Materials Characterization, 59, 2008, 40-46
45. H.L. Lin, Optimization of Inconel 718 alloy welds in an activated GTA welding via Taguchi method, gray relational analysis, and a neural network, International Journal of Advance Manufacturing Technology, 67, 2013, 939-950
46. H.L. Lin, T.M. Wu, Effects of Activating Flux on Weld Bead Geometry of Inconel 718 Alloy TIG Welds, Materials and Manufacturing Processes, 27, 2012, 1457-1461
47. K.D. Ramkumar, B.M. Kumar, M.G. Krishnan, S. Dev, A.J. Bhalodi, N. Arivazhagan, S. Narayanan, Studies on the weldability, microstructure and mechanical properties of activated flux TIG weldments of Inconel 718, Materials Science and Engineering A, 639, 2015, 234-244
48. J. Niagaj, Peculiarities of A-TIG welding of titanium and its alloys, Archives of Metallurgy and Materials, 57, 2012, 39-44
49. M. Liu, C. Hillier, C. Roepke, S. Liu, A-TIG Welding of CP Titanium Plates Using Cryolite-Containing Flux Pastes and Flux-Cored Wires, Paper 4A2
50. F. Liu, C. Yang, S. Lin, L. Wu, S. Su, Effect of weld microstructure on weld properties in A-TIG welding of titanium alloy, Transactions of Nonferrous Metals Society China, 13, 2003, 876-880
51. Y. Huang, D. Fan, F. Shao. Alternative current flux zoned tungsten inert gas welding process for aluminium alloys, Science and Technology of Welding and Joining, 17, 2012, 122-127
52. H.C. Dey, S.K. Albert, A.K. Bhaduri, U.K. Mudali, Activated flux TIG welding of titanium, Welding in the world, 57, 2013, 903-912
53. D.V. Kovalenko, D.A. Pavlyak , V.A. Sudnik, I.V. Kovalenko, Adequacy of thermo hydrodynamic model of through penetration in TIG and A-TIG welding of Nimonic-75 nickel alloy, The Paton Welding Journal, 10, 2010, 2-6
54. A.B. Short, Gas tungsten arc welding of titanium alloys: a review, Materials Science and Technology,25, 2009, 309-324
55. Z. Zhang, F. Zhang, Spectral Analysis of Welding Plasma of Magnesium Alloy Using Flux Coated Wire, Materials Transactions, 50, 2009, 1909-1914
56. L.M. Liu, D.H. Cai, Z.D. Zhang, Magnesium alloy weld using manganese chloride coated wire, Science and Technology of Welding and Joining, 13, 2008, 44-48
57. www//http N. Perry, S. Marya, New perspectives of flux assisted GTA welding in titanium structures
58. www//http Z. Sun, D. Pan, TIG Welding of Ti Alloys with In-Process Monitoring
59. Yukler A.I., Weld Metal, MUTEF Publications, Istanbul, 1992
60. Hiraoka H., Sakuma N., Zijp J., Energy balance in argon-helium mixed gas tungsten(TIG) arcs, Welding International, 12, 1998, 372-379