Research on Cladding and Repairing Technology Using a YAG Laser Robot system

Abstract

In the present research, the laser robot system was set up for cladding and repairing using a pulsed YAG laser, a 6-axis robot, an optical fiber and a special nozzle for powder supply. With this system, SUS304, Colmonoy No 5 and FP160 alloy powders were cladded on SM400B steel plate. The shape of clad layer, microstructures and performances of the clad layer were investigated by changing the process parameters. A sound clad layer with fine microstructure and low dilution was obtained. Moreover, the study on technology of rapid prototyping and repairing were performed by multi-layers cladding with a computer programming.