Latest research presented at the 30th National Welding Academic Conference of China!
Transient behaviors including droplet transfer, molten pool flow, arc plasma and keyhole oscillation in arc welding, laser hybrid welding and metal additive manufacturing only last microseconds, which cannot be captured by traditional low-speed cameras. Advanced ultra high speed cameras provide the temporal resolution required to analyze these complex transient welding phenomena.
This study adopts the Revealer high-speed camera (S1315 / NEO25) combined with synchronous current & voltage acquisition system, establishing a 3D synchronous observation framework linking morphological evolution, electrical signal response and process parameters.
Main research cases covered in this video:
CMT additive manufacturing: Short-circuit transfer dynamics & necking separation process
Laser-arc hybrid welding: Keyhole oscillation & dual heat source coupling mechanism
GTAW/TIG welding: Arc stability quantitative characterization via arc radiation features
Particle-reinforced TIG additive manufacturing: Marangoni flow & molten pool oscillation
The multi-source synchronous diagnosis system provides visualized, quantitative experimental data for welding physical mechanism modeling and intelligent closed-loop process control.
Keywords: Arc Welding, Additive Manufacturing, Metal 3D Printing, High-Speed Camera, Laser-Arc Hybrid Welding, CMT Welding, TIG Welding, Molten Pool Dynamics, Keyhole Behavior, Welding Process Monitoring, Material Engineering
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