多機能表面改質同時 3D プリンターの基礎的研究

Abstract

Direct manufacturing process using 3D printing technologies is spreading rapidly in all fields. It is necessary to the study of studies of 3D printing systems with superior functions of various post processes at molding simultaneously in order to establish the 3D printing technologies as the general industrial products method. The particular expected functions are full-color painting, and surface modification for improvement of the mechanical, electrical, chemical and biological properties. The development of full-color molding have been already solved using ink-jet-type paint system equivalent to the same mechanism of a printer used in the office as typical examples, respectively. On the other hand, the surface modification technologies have been applied in wide industrial field in order to control great various characteristics of hardness, wear resistance, electrical conductivity, thermal conductivity and so on at arbitrary places of metal products using vacuum apparatus. So the surface modification technologies should be necessary applied to 3D printing products using resin materials. In this study, our unique 3D printing system with multifunctional surface modification has been developed using the conventional air brush painting technique for resin and metal products. For confirmation of our trial apparatus, the full-color painting on a styrene resin plate has been succeeded by mix-spraying from two air brushes with suitable spray ratio using paint of cyan, magenta and yellow. The commercial paints using a air brush or a spray gun are widely used due to improve many kinds of charming surface characteristic such as lubricity, electric property, glossiness, fireproof property, corrosion resistance, luminous color property, et cetera. Therefore we could find great attractive possibility of realization of development of the innovative 3D printer with multifunctional surface modification. In this study we focus on the development of surface modification of full-color painting for ABS resin products using 3D printer.