Oscillation characteristics of molten pool in ultra-thin plate pulsed micro-plasma arc welding

JIA Qi; HE Jianping; XU Lei; TAO Xuyang

doi:10.12299/jsues.22-0033

Volume 37 Issue 1

Mar. 2023

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JIA Qi, HE Jianping, XU Lei, TAO Xuyang. Oscillation characteristics of molten pool in ultra-thin plate pulsed micro-plasma arc welding[J]. Journal of Shanghai University of Engineering Science, 2023, 37(1): 34-40. doi: 10.12299/jsues.22-0033

Citation:

JIA Qi, HE Jianping, XU Lei, TAO Xuyang. Oscillation characteristics of molten pool in ultra-thin plate pulsed micro-plasma arc welding[J]. Journal of Shanghai University of Engineering Science, 2023, 37(1): 34-40. doi: 10.12299/jsues.22-0033

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Oscillation characteristics of molten pool in ultra-thin plate pulsed micro-plasma arc welding

doi: 10.12299/jsues.22-0033

School of Materials Science and Engineering, Shanghai University of Engineering Science, Shanghai 201620, China

Received Date: 2021-02-22
Available Online: 2023-07-19
Publish Date: 2023-03-31

Abstract

Abstract

Due to the oscillation behavior of the molten pool, the dynamic change of the molten pool profile has a certain fluctuation. Based on the visual sensing detection method, the oscillation behavior of molten pool in pulsed micro-plasma arc welding of 0.1 mm thick ultra-thin stainless steel was studied, and the influence of different pulse parameters of welding current on the oscillation frequency and amplitude of molten pool was discussed. The results show that the size of molten pool fluctuates slightly during the action of base current and peak current, which is caused by molten pool oscillation. The oscillation frequency of the molten pool increases with the increase of the pulse current frequency in a certain range, while the oscillation amplitude of the molten pool decreases with the increase of the pulse current frequency. The oscillation frequency of the molten pool can reflect the quality of the weld seam forming.
- visual sensing,
- ultra-thin plate,
- molten pool oscillation,
- pulsed micro-plasma arc welding

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References(14)

References

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