Research Progress of the Modified Wood Powder for 3D printing

3D printing leads to the changes in manufacturing process, and the research and development of 3D printing supplies is considered as the core competitiveness of this technology. In this paper, it reveals the wood powder modification by establishing performance index of impulse process model to realize the dynamic prediction. The wood powder after grinding can not be directly used for 3D printing, wood powder was modified under high temperature heat treatment in order to make the wood powder with even particle size, dispersed shape and good fluidity, which solve the main problems that wood powder can be employed as printing materials to 3D printing. But there were some disadvantages which would affect the 3D printing performance after the wood powder had been treated, its wettability degrading, sizing saturation reducing, density decreasing and color darkening. After the twice modification, it can obtain the modified parameters and technology by characterizing and analyzing the 7 indexes.