Spray Arc Transition Frequency
The frequency at which droplets detach in a spray arc. A high value leads to low-spatter and stable metal transfer.
Physical-Chemical Mechanism of Action
In the spray arc, droplets form at the electrodes due to material feed. The droplet detachment frequency influences how often new droplets are released and how they move in the arc.
Metallurgical Relevance & Welding Risks
A high spray arc transfer frequency (e.g., above 10 kHz) leads to low-spatter material transfer, which improves weld quality and reduces cracking. Too low a value can cause spattery transfer and irregular material distribution, increasing the risk of hardening and cracking.
Workshop Practice & Action Guidelines
To achieve a high spray arc transfer frequency, optimize material feed and electrical settings. A frequency of at least 10 kHz is recommended for high-quality welds. Continuously monitor the frequency and adjust it as needed.