 The investigation found that the laser-skinned strategy used in LPBF processing of Ul for 0.2mg, 0.4sc or 0.2zr alloy affects microstructure evolution, residual stress and mechanical properties. The remelting specimen had a relatively smooth surface with minimum residual stress due to decreased temperature gradient during the process. However, tensile properties were reduced compared to other strategies due to precipitation coarsening that changed the strengthening mechanism from shearing to aura and dislocation looping. This article was authored by Hen Zhong, Dong Dong Ji Yu, and Dong Huo Dai.