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eess.SY2023★ 4 cited
Influence of Spattering on In-process Layer Surface Roughness during Laser Powder Bed Fusion
Haolin Zhang, Chaitanya Krishna Prasad Vallabh, Xiayun Zhao
Laser powder bed fusion (LPBF) holds promise to efficiently produce metal parts. However, LPBF incurs stochastic melt pool (MP) spattering, which would roughen workpiece in-process…
eess.SY2021★ 94 cited
Single-camera Two-Wavelength Imaging Pyrometry for Melt Pool Temperature Measurement and Monitoring in Laser Powder Bed Fusion based Additive Manufacturing
Chaitanya Krishna Prasad Vallabh, Xiayun Zhao
Melt pool (MP) temperature is one of the determining factors and key signatures for the properties of printed components during metal additive manufacturing (AM). The state-of-the…