Microstructure and mechanical properties of Q235 steel welded joint in pulsed and un-pulsed ultrasonic assisted gas tungsten arc welding
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Materials Processing Technology"
DOI: 10.1016/j.jmatprotec.2019.116335
Abstract: Abstract Pulsed ultrasonic assisted gas tungsten arc welding (PU-GTAW) is a newly developed welding method. In this work, the PU-GTAW and un-pulsed ultrasonic assisted gas tungsten arc welding (U-GTAW) was comparative investigated by analyzing the… read more here.
Keywords: gtaw; assisted gas; pulsed ultrasonic; tungsten arc ... See more keywords
Pulsed ultrasonic comb filtering effect and its applications in the measurement of sound velocity and thickness of thin plates
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DOI: 10.1016/j.ultras.2016.12.003
Abstract: HighlightsLay the theoretical foundation of the comb filtering effect in pulsed ultrasonics.Numerically demonstrate feedforward and feedback comb filters.Experimentally demonstrate the comb filtering effect.Demonstrate its capability and advantage in measuring thin plate sound velocity.Demonstrate its potential… read more here.
Keywords: filtering effect; comb filtering; pulsed ultrasonic; thin plate ... See more keywords
A new discovery of arc shape in pulsed ultrasonic wave assisted TIG welding
Sign Up to like & getrecommendations! Published in 2018 at "Physics of Plasmas"
DOI: 10.1063/1.5044227
Abstract: An entirely new change-rule of an arc shape was found in the pulsed ultrasonic assisted tungsten-electrode inert gas welding process (PU-TIG), i.e., the arc shape had an obvious characteristic of periodic changes under the actions… read more here.
Keywords: shape; ultrasonic wave; process; pulsed ultrasonic ... See more keywords