Development of a fine lattice coating system:

Evaluation of printed wall structures by powder supply method with gravity fall

Abstract

A fine lattice coating system was developed that applies a functional porous structure to the surface of bulk material based on metal additive manufacturing with a laser beam. Here, we propose a powder supply method with gravity fall, and examined the surface profile of the top layer when printed using this method. The results indicated that the top surface of the printed structure became smooth when the printing process exceeded a certain layer depending on the powder supply deposition state. In addition, the wall structure printed by the method could be formed up to a height of 0.4 mm in the upright state, indicating the effectiveness of printing by the powder supply method with gravity fall.