engleski

On-line monitoring of MAG-CMT welding process

By applying the MAG-CMT welding process, it is possible to protect the boiler elements with Ni-alloys in order to prevent the harmful effects of corrosion. The researches gained insight into the influence of certain parameters of MAG-CMT process on the observed properties (content of delta ferrite less than 5% on the surface of the clad Ni-alloy, slight mixing of the base and filler material while retaining the adequate bonding of the substrate (base material) and the cladding layer (filler material), achieving the uniform thickness of the cladding layer, and reducing the rough transitions between the passages). Main welding parameters of the MAG-CMT process (current, voltage, filler wire feed rate, gas flow) are monitored and analyzed. Based on the observed parameters, the area of stable electric arc of MAG-CMT process is defined.

Overlay cladding, MAG-CMT welding process, Welding parameters, On-line monitoring

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