Optical Diagnostics of Deposition of Metal Matrix Composites by Laser Cladding

Abstract

A multi-wavelengths pyrometer and an infrared camera are applied with Trumpf DMD 505 industrial-scale laser cladding machine for optical diagnostics. Brightness temperature of the molten pool is measured with the variation of the main laser cladding parameters such as scanning speed, laser power, powder feed rate and powder material composition. Black body model Micron M390 is applied to transform the raw signal from the camera and the pyrometer to the brightness temperature.