Abstract
The goal of this study is to characterize the pulsed Nd-YAG laser cladding with the pre-placed metal powder and resin compound. In the numerical analysis, the temperature distribution and thermal stress of the pulsed laser cladding have been simulated by finite element software. In the experiment, the compound of SUS304 stainless steel powder and UV light curable resin were pre-placed on the SUS304 stainless steel plate and irradiated by UV light source and pulsed Nd-YAG laser separately. Furthermore, the clad results have been evaluated by surface profile measurement, metallurgical analysis, EDS analysis, micro tensile test, micro hardness test respectively. With various ratios of the powder and resin composition, the effects of the process parameters were discussed in the experiment. Both the numerical and experiment results show that the increase of laser power will increase the height and width of the clad, and the increase of powder composition ratio will decrease the height and width of the clad. It can be found that the microstructure, grain size and clad strength are close to the typical clad results in high power laser cladding processes.
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