Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/23973
Title: An FEM approach for the thermal analysis of laser cladding with pre-placed powder
Authors: Guo, LF
Yue, TM 
Man, HC 
Issue Date: 2003
Source: ICALEO 2003 - 22nd International Congress on Applications of Laser and Electro-Optics, Congress Proceedings, 2003, M703 (CD-ROM) How to cite?
Abstract: In laser cladding with pre-placed powder, a trial-and-error approach is widely adopted to acquire the suitable processing parameters. The shortcomings of such an approach are obvious: long investigation times, high costs, and more importantly, the difficulty of making predictions. In this study, a numerical approach based on the finite element method has been developed to simulate the temperature profile of laser cladding with pre-placed metal powders. The FEM model is capable of simulating the 3-D thermal field of the cladding material under a moving heat source. Verification experiments were conduct ed by the laser cladding of Al-12%Si alloy on ZM51 magnesium alloy, using a high-power Nd-YAG laser. The results show that the model can be employed to determine the appropriate processing parameters for achieving good interfacial bonding between the clad layer and the substrate.
Description: ICALEO 2003 - 22nd International Congress on Applications of Laser and Electro-Optics, Jacksonville, FL, 13-16 October 2003
URI: http://hdl.handle.net/10397/23973
ISBN: 0912035757
9780912035758
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