A Multi-Scale Modeling of Laser Cladding Process (Preprint)

摘要: Abstract : Laser cladding is an additive manufacturing process that a laser generates melt-pool on the substrate material while second material, as powder or wire form, injected into melt-pool. Among all manufacture processes, offers most extensive variety of possibilities to alter component at its surface. Despite immense potentials and advancements, model microstructure evolution coupling with macro parameter has not been fully developed. To address this issue, studied by utilizing phase-field method. Phase-field method become widely used computation tool for modeling advantage avoiding tracking interface explicitly satisfying interfacial boundary conditions. In present work, numerical solutions are analyzed. The connection macro-process examined considering relationship macro- micro- parameters. effects thermal noise melt undercooling final have also studied. prediction results compared other researchers' good agreement was found. Different solidification morphologies different locations in pool investigated. It found mass transfer but heat dominates process.