An Optimization of Manufacturing Process of SS304L Using Direct Energy Deposition Method

The direct energy deposition (DED) method is an emerging manufacturing technique that has been recently highlighted due to its capabilities coat materials with complex geometry for high temperature and highly corrosive environmental applications, such as steam turbine blade. Amongst metallic materials, SS304L reported have superior corrosion resistance in environments. Therefore, 3D printing of complex-shaped parts using SS304 maybe a promising strategy introduce techniques nuclear industry application. To obtain robust stable products can withstand extreme environments, optimization the process conditions required. This study investigated effects parameters including laser power, scan speed, coaxial gas flow, feeder rate DED 4 way nozzle. It was found power effect on grain growth behaviors. If other variables are fixed speed above certain value, then does not affect surface oxidation. related height. As increases, height increases. Coaxial works prevent oxidation damage optic components critical factor determining size deposited material. These results be utilized future studies accelerate design time printed applications