New development of laser cladding system with larger area for industrical application

In this work, a new laser cladding system with larger area for industrical application has been developed. It consists of wide–band scanning mirror and automatic powder feeder by the rotating feed wheel with bucket–type scoops. It is shown that all kinds of laser cladding powders including not only Ni-base, Fe–base, Co–base, but also super fine and light powders ceramics ZrO2, Al2O3 as well as well as super fine and weight WC, TiC with spherical and edged grains can be fed. The powder feed rate can be continuously varied from 0.5 to 200g/ min, the measured tolerance limits are less than 2% in all conditions, our powder feeder has delivering power functions of both wide–band of 10–35mm and focussing band. Without the carrier gas the powder flow depends mainly on gravity, the powder stream at the nozzle is uniform, the powder utilazations factor is over 98 %. Some applications of metallurgical industry have been successfully made.In this work, a new laser cladding system with larger area for industrical application has been developed. It consists of wide–band scanning mirror and automatic powder feeder by the rotating feed wheel with bucket–type scoops. It is shown that all kinds of laser cladding powders including not only Ni-base, Fe–base, Co–base, but also super fine and light powders ceramics ZrO2, Al2O3 as well as well as super fine and weight WC, TiC with spherical and edged grains can be fed. The powder feed rate can be continuously varied from 0.5 to 200g/ min, the measured tolerance limits are less than 2% in all conditions, our powder feeder has delivering power functions of both wide–band of 10–35mm and focussing band. Without the carrier gas the powder flow depends mainly on gravity, the powder stream at the nozzle is uniform, the powder utilazations factor is over 98 %. Some applications of metallurgical industry have been successfully made.