Numerical Simulation on Temperature Field in Single-Layer Laser Cladding Using Coaxial Inside-Beam Powder Feeding

Ming Di Wang; Shi Hong Shi; Dun Wen Zuo

doi:10.4028/www.scientific.net/KEM.426-427.151

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 426-427Numerical Simulation on Temperature Field in...

Numerical Simulation on Temperature Field in Single-Layer Laser Cladding Using Coaxial Inside-Beam Powder Feeding

Abstract:

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 single-layer 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.

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Periodical:

Key Engineering Materials (Volumes 426-427)

Pages:

151-155

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.426-427.151

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Online since:

January 2010

Authors:

Ming Di Wang, Shi Hong Shi, Dun Wen Zuo

Keywords:

Inside-Beam Powder Feeding, Laser Cladding, Numerical Simulation, Temperature Field

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