THERMAL SCIENCE

International Scientific Journal

Thermal Science - Online First

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New method for determining cooling time and preheating temperature in arc welding

ABSTRACT
Study and research on arc welding have provided identification of errors in formulas for calculating the cooling time t8/5 and other dependent parameters. It is concluded that large errors are present in certain intervals which had caused failures in welding technologies. Incorrect approximation of cooling temperature is replaced by a more accurate approximation used for defining of the new precise algorithm for determining relevant welding parameters.
KEYWORDS
PAPER SUBMITTED: 2018-03-30
PAPER REVISED: 2018-05-05
PAPER ACCEPTED: 2018-10-05
PUBLISHED ONLINE: 2018-11-04
DOI REFERENCE: https://doi.org/10.2298/TSCI180330297N
REFERENCES
  1. Simpson, P.G. Induction Heating: Coil and System Design, McGraw Hill, New York, USA, 1960.
  2. Welding Handbook, Vol.3, 7th Ed., Resistance and solid state welding and other joining processes, American Welding Society, Miami, FL: 170-238, 1980.
  3. Welding Handbook, 9th Ed., Vol.4, Part 1: Materials and Applications, AWS, Annette O-Brien - Ed., Miami, FL, USA, 2011, p.860.
  4. Sindo, K., Welding Metallurgy, 2nd Ed., Wiley-Interscience, Hoboken, New Jersey, USA, 2003, p.480.
  5. Choong/Mzeoung, et al., Hong Ik University; Korea, Tube and Pipe Technology, January/February, 2001.
  6. Suzuki, S., Takamme, T., The formation mechanism of white line welded joints of ERW steel pipes, Tetsu to Hagane (1984), 40(10):153-159.
  7. Schuman, H., Metallography, Leipzig, VEB Deutcher Verlag fur Grunstoffindustrie, 1989.
  8. Gaultois, M.W., Jr., Design Principles for Oxide Thermoelectric Materials, Ph.D. Thesis, University of California, Santa Barbara, USA, 2015.
  9. Adams, C.M., Jr., Weld. J (1958), 37(5): 210s-215s.
  10. Rosenthal, D., Weld. J (1941), 20: 220-234.
  11. Rykalin, N.N., Calculation of heat flow in welding, Trans. Z. Paley and C.M. Adams, Jr., Document 212-350-74, Inter. Inst. of Welding, London, 1974.
  12. Rykalin, N.N., Nikolaev, A.V., Welding arc heat flow, Welding in the World (1971), 9(3/4): 112-132.
  13. Rosenthal, D., The theory of moving source of heat and its application to metal treatments. Transactions ASME (1946), 68(8): 849-866.
  14. Christensen, N., et al., Distribution of temperatures in arc welding, British Welding J (1965), 12: 54-75.
  15. Aburuga, T.Kh.S. et al., Numerical Aspects for Efficient Welding Computational Mechanics, Thermal Science (2014), 18, Suppl. 1: S139-S148
  16. Milićević, M., The application of a new formula of Nakaoka coefficient in HF inductive welding, J Mechanical Engineering (2010) 56(7-8): 483-488.
  17. Milićević, M., Radaković, Z., Quality improvement of steel pipes by seam welding with new magneto-dielectric impeder, Materials Transactions, The Japan Institute of Metals (2006), 47(06): 1464-1468.
  18. Milićević, M., Milićević, V., Impeder for HF inductive welding of steel tubes, IEE Proceedings, Science, Measurement and Technology (2002), 149(3):113-116.
  19. Milićević, M., et al., Defects identification of the high frequency inductive welding, Mining and Metallurgy Engineering (2013), no.2, Bor, Serbia
  20. Blondeau, R., Metallurgy and Mechanics of Welding: Processes and Industrial Applications, Wiley - ISTE, Hoboken, NJ 07030, USA, 2008.
  21. Lindstrom, P., Improved CWM platform for modelling welding procedures and their effects on structural behaviour, PhD Thesis, University West, SE-46186 Trollhättan, Sweden, 2015.
  22. BRITISH STANDARD BS EN 1011-2: Incorporating Amendment No.1, Welding- recommendations for welding of metallic materials, Part 2: Arc welding of ferritic steels, The European Standard EN 1011-2: 2001.
  23. Li, X., et al., Theoretical prediction of thermal cycles and hardness of HAZ due to twin wire submerged arc welding, Quarterly J Japan Weld. Soc. (2013), 31(4):109s-113s.
  24. Lykov, A.V., Heat and Mass Exchange, Reference book, Energia, Moscow, 1978 (in Russian).
  25. Poorhaydari, K., et al., Estimation of cooling rate in the welding of plates with intermediate thickness, Welding Res. (2005), 149s-155s.
  26. Lazić, V., et al., Theoretical-experimental determining of cooling time (t8/5) in hard facing of steels for forging dies, Thermal Science (2010), 14(1):235-246.
  27. Lazić, V., et al., Numerical analysis of temperature field during hardfacing process and comparison with experimental results, Thermal Science: 18(Suppl.1) (2014): 113-120.
  28. Meseguer-Valdenebro, J.L. et al., Calculation of t8/5 by response surface methodology for electric arc welding applications, Thermal Science: 18(Suppl.1) (2014): S149-S158.
  29. Jovičić, R., et al., Methods for calculating the preheat temperature for welding high strength steels, Welding and Welded Structures (2016) 61(3):113-119.
  30. Jovičić, R., et al., Definition of welding parameters by cooling time in temperature range 800-500°C, Welding and Welded Structures (2016), 61(4):149-156.
  31. Ito, Y., Bessyo, K., Weld crackability formula of high strength steels, J Iron and Steel Inst. Japan, J-STAGE Tetsu-do-Hakane (1972) 58(13):1812-1821.
  32. Yurioka, N., Kasuya, T., Chart method to determine necessary preheat temperature in steel welding, Quart. J Japan Welding Soc. (1995), 13(3): 347-357.
  33. Kasuya, T., Yurioka, N., Determination of necessary preheat temperature to avoid cold cracking under varying ambient temperature, Iron & Steel Inst. J Inter. (1995), 35(10):1183-1189.
  34. Merchant, S.Y., Investigation on effect of heat input on cooling rate and mechanical property (hardness) of mild steel weld joint by MMAW process, Int. J Modern Eng. Res. (IJMER) (2015), 5(3): 34-41.
  35. Merchant, S.Y., An overview on effect of preheating on cold cracking of low alloy steel and stainless steel weld joint, Int. J Appl. Innov. Eng. & Manag. (IJAIEM) (2015), 4(4): 70-77.