The Effect of Hybrid Ultrasonic Pulse Current Parameters on VPTIG Arc Pressure and Weld Formation

Bo Jin Qi; Wei Li; Bao Qiang Cong; Ming Xuan Yang

doi:10.4028/www.scientific.net/MSF.704-705.770

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HomeMaterials Science ForumMaterials Science Forum Vols. 704-705The Effect of Hybrid Ultrasonic Pulse Current...

The Effect of Hybrid Ultrasonic Pulse Current Parameters on VPTIG Arc Pressure and Weld Formation

Abstract:

Based on a novel arc welding device which can provide hybrid ultrasonic pulse current, the effect of hybrid pulsed current parameters on the arc pressure and weld formation during the aluminum alloy welding process was investigated. The experiment results show that, compared with normal VPTIG process, hybrid ultrasonic pulse VPTIG process gets greater arc pressure. Under the condition of keeping the RMS of positive current unchanged, lowering duty ratio has an evident effect on increasing arc pressure. At proper frequency range, increasing the pulse frequency and decreasing the pulse duty ratio can increase the depth and width of the weld, improve weld penetration rate correspondingly, and be beneficial to improve weld quality.

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Periodical:

Materials Science Forum (Volumes 704-705)

Pages:

770-774

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.704-705.770

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Online since:

December 2011

Authors:

Bo Jin Qi, Wei Li, Bao Qiang Cong, Ming Xuan Yang

Keywords:

Arc Pressure, Hybrid Ultrasonic Pulse, Variable Polarity

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