Titlebook: Key Technologies of Intelligentized Welding Manufacturing; Welding Arc Acoustic Na Lv,Shanben Chen Book 2020 Springer Nature Singapore Pte

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Relationship Modeling Between Weld Pool Collapse and Welding Penetration Based on Analyzing Arc Soupenetration feature and weld quality of acoustic signal. They barely consider the surface height control of welding pool based on arc sound signal. Considering the sag depression has a great relationship with the penetration status, so it is essential to achieve the arc height control through acoustic signal in automated robotic welding.

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Summary and Conclusions,f works about the online welding quality monitoring. Many fundamental research have been implemented about the characteristics of welding sound, the processing of welding sound signals and the pattern recognition of the welding sound signal and welding penetration.

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STELL

Mast-Cell

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MUT

he great variety of the dynamics of three point vortices near the singularity giving rise to vortex collapse. We discuss the strong influence of the existence of a finite time singularity on the dynamics, especially on how the period of the motion evolves as we get closer to the singular conditions.

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