Advertisement

Arc discharge and pressure characteristics in pulsed plasma gas of PAW

  • Shujun Chen
  • Zhaoyang Yan
  • Fan JiangEmail author
ORIGINAL ARTICLE
  • 6 Downloads

Abstract

This paper investigated the arc characteristics in pulsed plasma gas of plasma arc welding using a synchronous image- and electrical signal-acquisition system. The arc sizes (including the arc length L, the arc width on the water-cooling copper plate surface Wa, and the arc width under the nozzle Wc) and arc voltage changed regularly with the plasma gas periodically on/off. And the changing trends of arc sizes were affected by the plasma gas flow rate and the plasma gas switching frequency. The changing scale of arc voltage was proportional to the plasma gas flow rate and was inversely proportional to the plasma gas switching frequency. The average plasma arc welding (PAW) and plasma arc welding with pulsed plasma gas (PPG-PAW) arc voltages were equal when the plasma gas flow rate was the same. The arc pressure also presented cyclical changes during the plasma gas on/off, and the changing scale and the axial mean value were inversely proportional to the plasma gas switching frequency. The periodically oscillating arc and arc pressure would be beneficial to the refinement of grain structure during the welding process.

Keywords

Arc characteristics Pulsed plasma gas Plasma arc welding Arc pressure 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Notes

Funding information

This work is supported by National Natural Science Foundation of China (No.51875004), Beijing Natural Science Foundation (3172004).

References

  1. 1.
    Lee WS, Lin CF, Liu CY, Cheng CW (2007) Effects of strain rate and welding current mode on microstructural properties of SUS 304L PAW welds. J Mater Process Technol 183:183–193CrossRefGoogle Scholar
  2. 2.
    Sproesser G, Chang YJ, Pittner A (2017) Energy efficiency and environmental impacts of high power gas metal arc welding. Int J Adv Manuf Technol 91(9–12):3503–3513CrossRefGoogle Scholar
  3. 3.
    Chen SJ, Zhang RY, Jiang F, Dong SW (2018) Experimental study on electrical property of arc column in plasma arc welding. J Manuf Proces 31:823–832CrossRefGoogle Scholar
  4. 4.
    Benjamin D, Yadaiah N, Rupshree O, Sohini C, Arpan KM, Muralidhar M (2017) A perspective review on estimation of keyhole profile during plasma arc welding process. Mater Today Proc 5(2):6345–6350Google Scholar
  5. 5.
    Liu XF, Jia CB, Wu CS, Zhang GK, Gao JQ (2017) Measurement of the keyhole entrance and topside weld pool geometries in keyhole plasma arc welding with dual CCD cameras. J Mater Process Technol 248:39–48CrossRefGoogle Scholar
  6. 6.
    Zhang GK, Wu CS, Liu XF (2015) Single vision system for simultaneous observation of keyhole and weld pool in plasma arc welding. J Mater Process Technol 215:71–78CrossRefGoogle Scholar
  7. 7.
    Wu CS, Zhao CY, Zhang C, Li YF (2017) Ultrasonic vibration assisted keyholing plasma arc welding. Weld J 96:279–286Google Scholar
  8. 8.
    Zhang YM, Liu YC (2003) Modeling and control of quasi-keyhole arc welding process. Control Eng Pract 11(12):1401–1411CrossRefGoogle Scholar
  9. 9.
    Wu CS, Jia CB, Chen MA (2010) A control system for keyhole plasma arc welding of stainless steel plates with medium thickness. Weld J 89(11):225–231Google Scholar
  10. 10.
    Li XR, Shao Z, Zhang YM (2012) Double stage plasma arc pipe welding process. Weld J 91(12):346–353Google Scholar
  11. 11.
    Chen SJ, Yan ZY, Jiang F, Zhang W (2018) Gravity effects on horizontal variable polarity plasma arc welding. J Mater Process Technol 255:831–840CrossRefGoogle Scholar
  12. 12.
    Chen SJ, Jiang F, Lu YS (2013) Arc separability and measurement of arc components. AWS Professional Program and Poster Session, ChicagoGoogle Scholar
  13. 13.
    Chen SJ, Jiang F, Lu YS, Zhang YM (2014) Separation of arc plasma and welding current in electrical arc—an initial study. Weld J 93:253–261Google Scholar
  14. 14.
    Campbell SW, Galloway AM, McPherson NA (2013) Arc pressure and weld metal fluid flow while using alternating shielding gases. Part 1: arc pressure measurement. Sci Technol Weld Join 18(7):591–596CrossRefGoogle Scholar
  15. 15.
    Campbell SW, Galloway AM, McPherson NA (2013) Arc pressure and fluid flow during alternating shielding gases. Part 2: arc force determination. Sci Technol Weld Join 18(7):597–602CrossRefGoogle Scholar
  16. 16.
    Vredeveldt H (2014) Increased power density plasma arc welding: the effect of an added radial gas flow around the arc root. TU Delft, Delft University of TechnologyGoogle Scholar
  17. 17.
    Yang MY, Zheng H, Li L (2017) Arc shapes characteristics with ultra-high-frequency pulsed arc welding. Appl Sci 7(1):45CrossRefGoogle Scholar
  18. 18.
    Yang MY, Zheng H, Qi BJ, Yang Z (2017) Effect of arc behavior on Ti-6Al-4V welds during high frequencypulsed arc welding. J Mater Process Technol 243(2017):9–15CrossRefGoogle Scholar
  19. 19.
    Gu WP, Xiong ZY, Wan W (2013) Autonomous seam acquisition and tracking system for multi-pass welding based on vision sensor. Int J Adv Manuf Technol 69:451–460CrossRefGoogle Scholar
  20. 20.
    Nele L, Sarno E, Keshari A (2013) An image acquisition system for real-time seam tracking. Int J Adv Manuf Technol 69:2099–2110CrossRefGoogle Scholar
  21. 21.
    Dai DS, Song YL, Zhang H, Zhu YF (2002) Study on arc force in plasma welding. Trans China Weld Inst 23(2):51–54Google Scholar
  22. 22.
    Yang ZD, Fang CF, Chen Y, Liu B, Hu QX, Gu XY (2018) Effect of forces on dynamic metal transfer behavior of cable-type welding wire gas metal arc welding. Int J Adv Manuf Technol 97(1–4):81–90Google Scholar

Copyright information

© Springer-Verlag London Ltd., part of Springer Nature 2019

Authors and Affiliations

  1. 1.Engineering Research Center of Advanced Manufacturing Technology for Automotive Components-Ministry of EducationBeijing University of TechnologyBeijingChina

Personalised recommendations