Tandem Submerged Arc Welding
SAW-Tandem welding uses two independent wire electrodes in a single molten pool to weld thick-walled components efficiently. It increases deposition rate and cost-effectiveness.
Physical-Chemical Mechanism of Action
UP tandem welding uses two independent wire electrodes operating in a common weld pool. Each electrode can be controlled independently, allowing optimized energy distribution and higher deposition rate.
Metallurgical Relevance & Welding Risks
This method is especially suitable for thick-walled components because it provides even melt distribution and a high deposition rate. However, uneven heating or too rapid cooling can lead to porosity and cracking. It is important to set the electrodes correctly and monitor the weld pool regularly.
Workshop Practice & Action Instructions
• Use two independent wire electrodes in a common weld pool.
• Adjust the electrodes so they work simultaneously and achieve an optimal deposition rate.
• Monitor the weld pool regularly for temperature and porosity.
• Avoid too rapid cooling to prevent cracking.