Mathematical modelling of laser materials processing

2019-05-17 03:23:40

processing conditions laser modelling phenomena

责任者: Mazumder, J.;Mohanty, P.S.;Kar, A. 单位: Univ of Illinois at Urbana-Champaign, Urbana, IL, USA 来源出处: International Journal of Materials & Product Technology,1996,11(3-4):193-252 摘要: Laser materials processing involves a wide range of transport phenomena, power density (up to 1012 W/cm2) and interaction time (up to picoseconds) for processing objects with sizes ranging from nanometres to metres. The art of modelling this novel process is to develop a proper understanding in selecting the appropriate transport phenomena and boundary conditions for specific applications. This paper summarizes modelling efforts to date, on laser heat treatment, non-equilibrium synthesis, alloying, cladding, welding, cutting, drilling, chemical vapour deposition, and ablation processes. For each process, the transport phenomena, boundary conditions, governing equations, solution techniques and applicability and limitations are reviewed. An extensive bibliography is provided for further reading of the interested scientists and engineers. 关键词: Laser applications;Mathematical models;Cladding (coating);Boundary conditions;Laser beam cutting;Laser beam welding;Drilling;Chemical vapor deposition;Laser ablation;Heat treatment;Alloying;Keyhole welding;Nonequilibrium synthesis