engleski

Monitoring Of Main Welding Parameters At STT Welding Process

The paper presents basic information of new, modern and high efficiency welding process ; STT process (Surface Tension Transfer). This welding process is successfully used for performing of root passes at thick steamboilers pipes and chambers. An example of welding parameters recorded by own on-line monitoring system during performing a root pass at steamboiler chamber was explained. The sampling frequency for welding current and voltage was 2 kHz. The specific of STT welding process is application of impulse technique but with short arc metal transfer in electric arc. That is something new in relationship to other arc welding processes. The STT welding process is suitable for welding of thin plates, also. It has very low heat input what is interesting from residual stresses and deformations reduction point of view.

welding parameters; STT welding process; steamboilers; on-line monitoring system

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