Numerical Simulation on Temperature Field in Single-layer Laser Cladding Using Coaxial Inside-Beam Powder Feeding
For the disadvantages of the lateral powder feeding and multi-lateral coaxial powder feeding process in laser cladding rapid prototyping process, a new process of hollow focusing laser, powder tube being middle and inside-beam powder feeding is put forward, which can be especially apply in laser cladding. In this paper, the finite element analysis model of temperature of the laser cladding using inside-beam powder feeding is established, temperature distribution of the singlelayer in laser cladding is researched, which is theoretically useful for controlling the quality of microstructure and to prevent the cracks. When adopting finite element analysis software, Ansys, the layer unit is acted layer-by-layer, the full simulation of real cladding deposition process will be realized if moving boundary. Finally, some experiments validate the simulation results. Compared with the original mode, it can be found that if adopting the system of the laser cladding rapid manufacturing using inside-beam powder feeding, the temperature distribution is different and it will lead to a denser microstructure.
Numerical Simulation Laser Cladding Temperature Field Inside-beam Powder Feeding
M.D.Wang S.H.Shi D.W.Zuo
School of Mechanical and Electric Engineering,Soochow University,Suzhou,China Nanjing University of Aeronautics and Astronautics,Nanjing,210016,China
国际会议
常州
英文
151-155
2009-11-19（万方平台首次上网日期，不代表论文的发表时间）