US 12,257,812 B2
Crystal structures inspired tessellations to generate multi-material properties in lattice structures with 3D printing
Chinmai Bhat, Taipei (TW); Ajeet Kumar, Taipei (TW); and Jeng-Ywan Jeng, Taipei (TW)
Assigned to National Taiwan University of Science and Technology, Taipei (TW)
Filed by National Taiwan University of Science and Technology, Taipei (TW)
Filed on Feb. 18, 2022, as Appl. No. 17/676,023.
Prior Publication US 2023/0264450 A1, Aug. 24, 2023
Int. Cl. A42B 3/12 (2006.01); A43B 13/18 (2006.01); B22F 5/00 (2006.01); B32B 3/12 (2006.01); B33Y 80/00 (2015.01); B62J 1/26 (2006.01); C30B 29/10 (2006.01); C30B 29/66 (2006.01); F16F 1/02 (2006.01); F16S 5/00 (2006.01); A42B 3/06 (2006.01)
CPC B32B 3/12 (2013.01) [B22F 5/00 (2013.01); B33Y 80/00 (2014.12); C30B 29/10 (2013.01); C30B 29/66 (2013.01); F16F 1/025 (2013.01); F16S 5/00 (2013.01); A42B 3/063 (2013.01); A42B 3/125 (2013.01); A43B 13/181 (2013.01); A43B 13/188 (2013.01); B32B 2307/56 (2013.01); B32B 2437/02 (2013.01); B32B 2437/04 (2013.01); B32B 2601/00 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A metallic crystal structure inspired lattices with Body Centered Cubic (BCC) and Face Centered Cubic (FCC) tessellations, comprising of multiple basic unit lattice cells stacked and connected to constitute a three-dimensional lattice structures, wherein morphology of basic unit lattice cell is inspired by a shape of urchin, and each of basic unit lattice cells of different tessellations comprises multiple flat connecting portions formed on a surface of a basic unit lattice cell and intersecting with axes generated from the center of the basic unit lattice cell, and the flat connecting portions of one of the basic unit lattice cell is connected to the flat connecting portions of an adjacent basic unit lattice cell to constitute a connection structure of edge-to-edge tessellation; wherein
the flat connecting portions are intersected with four axes corresponding to four diagonal lines of a cubic lattice in which the basic unit lattice cell of BCC is located, and the three-dimensional tessellation being generated is Body Centered Cubic (BCC) tessellation, or
the flat connecting portions are intersected with six axes corresponding to four lines connecting a centroid of a cubic/rectangle surface of a cubic lattice where the basic unit lattice cell is located to centroids of other four adjacent cubic/rectangle surfaces of the cubic lattice and two diagonal lines of the cubic/rectangle surface where the basic unit lattice cell is located, and the three-dimensional lattice structure being generated is Face Centered Cubic (FCC) lattice structure.