Surface enhancement of metallic alloys by laser precision engineering

Surface enhancement is critical to improve overall performance, service functionality, and longevity of metallic components for complex service environments in diverse industrial fields. Laser precision engineering has advantages of high precision, high flexibility, high-energy density, and slight thermal damage, which shows excellent prospects for metallic surface. This study focuses on surface enhancement of various metallic alloys induced by laser precision processing in our group, which mainly includes multi-metal laser cladding, laser joining of dissimilar materials, and laser polishing of additively manufactured metallic alloys. Moreover, on-line monitoring technologies as well as machine learning methods have been applied to develop intelligent processing.