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Dynamic behavior investigation of spot welding machines and its influence on weld current range by modal analysis

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Abstract

Resistance spot welding (RSW) process is the major joining technique in the automobile industry due to its high speed and relatively low cost. Although RSW is widely used, it is difficult to ensure the consistency of joint quality in real production, a common phenomenon in resistance spot welding is expulsion, characterized by the ejection of molten metal during welding linked to excessive current densities. To determine the spot weldability of steels the available welding current range is evaluated. This range is defined by the maximum current without splash and the minimum current still giving an acceptable size of the weld diameter. Previous studies show that the static and dynamic behaviors of spot welders have complex influences on the resistance welding process and weld quality. A criterion of dynamic stiffness has been established here to explain why the welding current range of a given steel grade can depend on the structural stiffness of spot welding machine.

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References

  1. Srikunwong C (2005) Modélisation du procédé de soudage par points. Mines Paris

  2. Senkara J, Zhang H, Hu SJ (2004) Expulsion prediction in resistance spot welding. Weld J 83:123-s

    Google Scholar 

  3. Tang H, Hou W et al (2003) Influence of welding machine mechanical characteristics on the resistance spot welding process and weld quality. Weld J 82(5):116-s–224-s

    Google Scholar 

  4. Satoh T, Katayama J, Nakamo T (1998) Effect of mechanical properties of spot welding machine on weld quality. IIW Doc. No. III-912-88, pp 118–122

  5. Zhang H (2006) Resistance welding: fundamentals and applications. Taylor & Francis, Boca Raton

    Google Scholar 

  6. Wang X, Li Y, Meng G (2011) Monitoring of resistance spot weld quality using electrode vibration signals. Meas Sci Technol 1–11

  7. Li W, Cerjanec D, Grzadzinski G (2005) A comparative study of single-phase AC and multiphase DC resistance spot welding. ASME J Manuf Sci Eng 127(3):583–589

    Article  Google Scholar 

  8. Li YB, Lin ZQ, Hu SJ, Chen GL (2007) Numerical analysis of magnetic fluid dynamics behaviors during resistance spot welding. J Appl Phys 101(5):053506

    Article  Google Scholar 

  9. Tang H, Hou W, Hu JS, Zhang H (2000) Force characteristics of resistance spot welding of steels. Weld J 79(7):175-s–183-s

    Google Scholar 

  10. Jou M (2003) Real time monitoring weld quality of resistance spot welding for the fabrication of sheet metal assemblies. J Mater Process Technol 132:102–113

    Article  Google Scholar 

  11. Zhang Y, Chen G (2005) A neuro-fuzzy approach to part fitup fault control during resistance spot welding using servo gun. Lect Notes Comput Sci 3612:1060–1068

    Article  Google Scholar 

  12. Wu KC (1977) The mechanism of expulsion in weld bonding of anodized aluminum. Weld J 56(8):238-s–244-s

    Google Scholar 

  13. Zhang H (1999) Expulsion and its influence on weld quality. Weld Res Suppl 78:373-s

    Google Scholar 

  14. Stahl-Eisen-Prüfblätter (2011) Testing and documentation guideline for the joinability of thin sheet of steel—part 2: resistance spot welding. SEP 1220

  15. Dancette S (2009) Comportement Mécanique des Soudures Par Points: Mécanismes et Stratégies de Prédiction dans le cas des Tôles en Acier Pour Automobile. INSA

  16. Norme Européenne (2005) Soudage par Resistance—Soudabilité—Méthodes alternatives d’évaluation des tôles d’acier pour le soudage par points. NF EN ISO 18278-2

  17. Ewins D (1984) Modal testing: theory and practice. Research Studies Press, London

    Google Scholar 

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Acknowledgments

The authors thank ArcelorMittal Research for all support for the success of this work.

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Correspondence to Guilherme Ferreira Gomes.

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Technical Editor: Kátia Lucchesi Cavalca Dedini.

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Gomes, G.F., Viéville, P. & Durrenberger, L. Dynamic behavior investigation of spot welding machines and its influence on weld current range by modal analysis. J Braz. Soc. Mech. Sci. Eng. 39, 765–773 (2017). https://doi.org/10.1007/s40430-016-0580-0

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  • DOI: https://doi.org/10.1007/s40430-016-0580-0

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