THERMAL SCIENCE

International Scientific Journal

Thermal Science - Online First

online first only

Effective temperature based algorithm for achieving constant quality resistance seam weld

ABSTRACT
The resistance seam welding is a welding technique that is often used for the creation of the leak-tight welds. It is a technique where the weld is created as a set of overlapping weld nuggets between the cylindrical welding electrodes. The creation of the weld nuggets is depending on many external and internal parameters. Some of the external parameters are pressing force, welding electrodes, electrical current and time, while the internal parameters are electrical resistance, resistivity, and temperature. The main issue with the resistance seam welding is to properly set up internal and external parameters, create a weld nugget of a certain quality, reconfigure the parameters, relocate, and create another weld nugget of the same quality. The modern welding machines must have monitoring systems capable to make decisions and recalibration of the parameters. These systems are very complex and expensive, and as such, non-affordable for many small enterprises. This paper is presenting an effective, temperature-based algorithm for selecting the optimal welding parameters before the welding begins. The algorithm bases on the data from the experimental welding and numeric simulation of the welding process. The verification of the algorithm is done after testing the quality of the welds.
KEYWORDS
PAPER SUBMITTED: 2020-03-07
PAPER REVISED: 2020-07-22
PAPER ACCEPTED: 2020-07-26
PUBLISHED ONLINE: 2020-08-08
DOI REFERENCE: https://doi.org/10.2298/TSCI200307222M
REFERENCES
  1. SRPS EN ISO 4063: Welding and allied processes, published 28.01.2013
  2. S. A. Westgate, S.A., Resistance welding-state of the art, Wel. and Cut., 55 (2003), pp. 256-260
  3. Mira-Aguiar, T., Leitão, C., Rodrigues, D.M., Solid-state resistance seam welding of galvanized steel, Int J Adv Manu Tech, 86 (2016), pp. 1385-1391, doi.org/10.1007/s00170-015-8294-5
  4. Ma, Y. et al., Review on Techniques for On-Line Monitoring of Resistance Spot Welding Process, Adv in Mat Sci and Eng, 2013 (2013), pp. 1687-8434, doi.org/10.1155/2013/630984
  5. Zhao, D. et al., Modeling and Experimental Research on Resistance Spot Welded Joints for Dual-Phase Steel, Materials, 12 (2019), doi:10.3390/ma12071108
  6. Jaber, H.L. et al., Peak Load and Energy Absorption of DP600 Advanced Steel Resistance Spot Welds, Iron & Steel, 44 (2017), pp. 699-706, doi: 10.1080/03019233.2016.1229880
  7. Kaščák, Ľ., Spišák, E., Evaluation of the Influence of the Welding Current on the Surface Quality of Spot Welds, The International Journal of Engineering And Science, 12 (2016), pp. 32-37
  8. Bay, N., Wanheim, T., Real Area of Contact Between a Rough Tool and a Smooth Workpiece at High Normal Pressure, Wear, 38 (1976), pp. 225-234
  9. ASM Handbook Volume 6: Welding, Brazing, and Soldering (editors: D.L. Olson, T.A. Siewert, S. Liu, G.R. Edwards), ASM, New York, USA, 1993
  10. Kulkarni, A.S., Inamdar, K.H., Effect of Process Parameters on Resistance Welding, Int J Eme Tech Inn Res, 4 (2015), pp. 963-967
  11. *** Ruukki, www.scribd.com/document/93507084/Ruukki-Resistance-Welding-Manual
  12. *** Euroheat, www.euroheat.co.rs/catalog/izmenjivaci-toplote/plocasto-dobosasti/