Design, fabrication and characterization of porous structures produced by selective laser sintering

Figure2. Relationship of porosity and characteristic length. Figure2-H: porosity and wall thickness of honeycomb structure; Figure2-D: porosity and diameter of diamond lattice structure; Figure2-P: porosity and wall thickness of Primitive TPMS structure; Figure2-G: porosity and wall thickness of Gyroid TPMS structure. Figure4. Porosity measurement. The left one of two vertical axes is the relationship of designed porosity and measured porosity while the right one is the relative error. Figure5. Relationship of porosity and compressive properties of four porous structures.图2 孔隙率与特征长度的关系。图2-H：蜂窝结构的孔隙率与壁厚；图2-D：钻石晶格结构的孔隙率与直径；图2-P：原始型三重周期极小曲面（Primitive TPMS）结构的孔隙率与壁厚；图2-G：螺旋型三重周期极小曲面（Gyroid TPMS）结构的孔隙率与壁厚。图4 孔隙率测量。双纵轴中左侧为设计孔隙率与实测孔隙率的关系，右侧为相对误差。图5 四种多孔结构的孔隙率与压缩性能的关系。