Correspondence: [EMAIL_ADDRESS]  
Yuei Liu  
School of Artificial Intelligence, Beijing Technology and Business University, Beijing 100048, China; [EMAIL_ADDRESS] (W.S. ); [EMAIL_ADDRESS] (J.L. ); [EMAIL_ADDRESS] (Y.L. ); [EMAIL_ADDRESS] (Y.L.) Correspondence: [EMAIL_ADDRESS]  
Yuei Liu  
School of Artificial Intelligence, Beijing Technology and Business University, Beijing 100048, China; [EMAIL_ADDRESS] (W.S. ); [EMAIL_ADDRESS] (J.L. ); [EMAIL_ADDRESS] (Y.L. ); [EMAIL_ADDRESS] (Y.L. ); [EMAIL_ADDRESS] (Y.H.) Correspondence: [EMAIL_ADDRESS]  
Yuei Liu  
School of Artificial Intelligence, Beijing Technology and Business University, Beijing 100048, China; [EMAIL_ADDRESS] (W.S. ); [EMAIL_ADDRESS] (J.L. ); [EMAIL_ADDRESS] (Y.L. ); [EMAIL_ADDRESS] (Y.L. ); [EMAIL_ADDRESS] (Y.H.) Correspondence: [EMAIL_ADDRESS]  
Yuei Liu  
School of Artificial Intelligence, Beijing Technology and Business University, Beijing 100048, China; [EMAIL_ADDRESS] (W.S. ); [EMAIL_ADDRESS] (J.L. ); liuyd@th. to form lattice structures and find the potential of the unfilled single-contour (SC) scanning strategy to improve the reproducibility of porous lattices. Meanwhile, SC proved to be a feasible strategy to produce Ti-6 Al-4V lattices with pillar diameters below 350 \(\upmu\)m. [PERSON] et al. [22] analyzed the effects of process parameters on the build surface, relative density, defects, microstructure, and mechanical properties of parts through multilayer fabrication and surface optimization experiments. The study found that the dot pitch had the most significant impact on the build surface of the manufactured part, and when the dot pitch was 35 \(\upmu\)m, unmelted defects could be eliminated. [PERSON] et al. [23] found that the anisotropy of the mechanical properties of the L-PBF samples increased significantly with the residence time between the forming layers. [PERSON] et al. [24] proposed a triangular wave strip scanning strategy. This scanning strategy not only improves the quality of the lap area but also increases the tensile strength and Vickers hardness of the sample, and the density of the 316 L stainless steel sample reaches 99.74%. [PERSON] et al. [25] found that under the multi-laser L-PBF process, careful scan order and direction planning to reduce heat concentration was beneficial for controlling residual stress. [PERSON] et al. [26] adopted two remelting processes with the same initial scanning strategy and opposite directions in the formed AlSi10 Mg parts using L-PBF technology. They found that the porosity in the central region of the samples with the two remelting processes was almost at the same level. However, there were differences in the porosity distribution at the front of the melt channel and in the wake of the co-remelting strategy. [PERSON] et al. [27] studied the effect of different structural angles on the microstructure and mechanical properties of AlSi10 Mg alloys. The surface hardness of the sample at 45\({}^{\circ}\) was the highest, reaching 154.44 HV. The 60\({}^{\circ}\) specimen had good mechanical properties, with a tensile strength of 463.54 MPa, a yield strength of 283.37 MPa, and an elongation of 9.25%. [PERSON] et al. [28] found that the relative density of the samples printed using the dual-scan strategy increased compared to the samples printed using the single scan strategy. Furthermore, it was observed that the samples fabricated using the dual-scan strategy showed higher stiffness than those printed using the single scan strategy. [PERSON] et al. [29] obtained a yield strength between 225 MPa and 263 MPa, a tensile strength between 260 MPa and 365 MPa, and a ductility between 1 and 4%, when the tensile samples were printed with AlSi12 aluminum alloy in three different orientations, horizontal (H--0\({}^{\circ}\)), inclined (I--45\({}^{\circ}\)), and vertical (V--90\({}^{\circ}\)). [PERSON] et al. [30] found that there was significant variation in the dislocation densities between the SLMed and the EBMed samples, although a similar manufacturing techniques were used.