Estimation of Heat Energy in Regeneration of Agricultural Machine Parts by Welding Methods
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Abstract
In the paper, the method of calculating the welding energy needed to regenerate parts of agricultural machines by welding (joining) or surfacing (rebuilding, hardfacing) is presented. Problems with the lack of adequacy of the commonly used formula for linear welding energy to the actual amount of heat introduced into the welded joint are discussed. A volumetric approach based on the effective amount of heat generated by the electric arc introduced per unit volume of the weld was proposed. The simplified formulas for volumetric energy are presented. The considerations are illustrated with examples of calculations. The analyzed examples include the use of a computerized stand for geometric measurements of metallographic specimens. The proposed volumetric method of calculating the amount of heat introduced into the welded joint is a more realistic indicator of heat demand than linear energy. On the other hand, based on the volume of the weld (padding weld), it allows to determine the amount of energy needed to regenerate machine parts, including agricultural ones.
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References
Goldak, J., Asadi, M., Alena, R.G. (2010). Why power per unit length of weld does not characterize a weld? Computational Materials Science, 48, 390-401.
Górka, J., Janicki, D., Fidali, M., Jamrozik, W. (2017). Thermographic assessment of the HAZ properties and structure of thermomechanically treated steel. International Journal Thermophysics, 38, 183. DOI 10.1007/s10765-017-2320-9.
Hrabe, P., Choteborsky, R., Navratilova, M. (2009). Influence of welding parameters on geometry of weld deposit bead. Int. Conf. Economic Eng. Manufacturing Systems, Brasov, 26-27 November 2009, Regent, 103(27), 291-294.
Kensik, R. (2006). Assessment of linear energy in MIG / MAG processes. Welding Technology Review, 78(9-10), 5-8. (in Polish)
Kudła, K., Wojsyk, K. (2010). Normalized linear energy and the amount of heat introduced during welding. Welding Technology Review, 82(12), 21-25. (in Polish)
Labanowski, J., Fydrych, D., Rogalski, G., Samson, K. (2011). Underwater welding of duplex stainless steel, Solid State Phenomena, 183, 101-106.
Liskevych, O., Scotti, A. (2015). Determination of the gross heat input in arc welding. Journal of Materials Processing Technology, 225, 139-150.
Loos, P. (1993). Europäischer Normentwurf über die Verarbeitung ferritischer Stähle. Schweissen & Schneiden, 45(1), 59-70.
Łabanowski, J. (2019). Corrosion-resistant steels. Gdańsk. Ed. Gdańsk University of Technology. (in Polish)
Matkowski, P., Nowacki, J., Sajek, A. (2016). The influence of welding heat input on the microstructure of joints of S1100QL steel in one-pass welding. Archives of Civil and Mechanical Engineering, 16, 777-783.
Nasir, N.S.M., Razab, M.K.A.A., Ahmad, M.I., Mamat, S. (2017). Influence of heat input on carbon steel microstructure. ARPN Journal of Engineering and Applied Sciences, 12, 2689-2697.
Ostromęcka, M. (2017). Influence of linear energy on selected aspects of the quality of joints welded with a non-consumable electrode with the use of pulsed current. Welding Technology Review, 89(6), 20-23. (in Polish)
PN-NE 1011-1 (2001). Guidelines for welding steel. Part 1. General guidelines for arc welding. (Polish standard).
Romek, D., Selech, J., Ulbrich, D., Felusiak, A., Kieruj, P., Janeba-Baroszewicz, E., Pieniak, D. (2020). The impact of padding weld shape of agricultural machinery tools on their abrasive wear. Tribologia, 14(2), 55-62.
Sajek, A., Nowacki, J. (2018). Comparative evaluation of various experimental and numerical simulation methods for determination of t8/5 cooling times in HPAW process weldments, Archives of Civil and Mechanical Engineering, 18, 2018, 583-591.
Winczek, J. (2011). New approach to modeling of temperature field in surfaced steel elements. International Journal of Heat and Mass Transfer, 54, 4702-4709.
Wojsyk, K., Macherzyński, M. (2016). Determination of linear energy of welding by measuring trans-verse fields of welds. Biuletyn Instytutu Spawalnictwa, 60(5), 75-79. (in Polish)
Wojsyk, K., Macherzyński, M., Lis, R. (2017). Ocena ilości ciepła wprowadzonego do spoin i napoin metodą pomiaru ich pól poprzecznych w konwencjonalnych i hybrydowych procesach spawalniczych. Przegląd Spawalnictwa, 89(10), 67-82.