FABRICATION METHOD OF 3 DIMENSIONAL STRUCTURE WITH GYROID TRIPLY PERIODIC MINIMAL SURFACES BASED ON BEAD ARRAYS

摘要

The present invention relates to a method of manufacturing a three-dimensional structure having a three-cycle minimum curved surface (TPMS) based on a bead arrangement, and in particular, to a geometric shape of a bead arrangement and a method for realizing a gyroid three-cycle minimum curve. The 3D structure manufacturing method is a manufacturing method in which a plurality of beads are contacted in a predetermined pattern to form an array of beads, and then the beads are interconnected, wherein (a) a plurality of unit layer patterns are repeatedly stacked, and (b ) Formed by bonding contact portions between all beads constituting a plurality of unit layer patterns, the unit layer pattern is a triangular bead arrangement consisting of one center bead (C) and three branch beads (S) having the same diameter The unit cell patterns of are spaced apart from each other to form a secret house rule arrangement. In this case, the unit layer pattern may have a single layer or a multilayer structure. According to the present invention, it is possible to mass-produce a gyroid or other three-dimensional structure having a double gyroid surface and a three-dimensional thin-film porous structure using the same as a sacrificial structure, so that the technology related to the production of “Shellular” of the ideal TPMS curved surface and its application range Can be extended further.