Design of roller feeding assembly for 3D printer using powder materials

Abstract Additive Manufacturing uses Powder bed Fushion - PBF powder material that is being used more and more widely in important industries such as manufacturing, aviation, space, et cetera. This technology can be used to create Rapid prototyping and product manufacturing, which help businesses quickly convert initiatives and ideas into actual products and effectively increase their competitiveness in today’s fierce battle. In Vietnam, 3D printing technology using powdered materials such as gypsum powder and metal is increasingly being researched and applied. The feeding cluster is an important part of equipment lines using this technology. The goal of the article is to design a roller feeding assembly for powder materials suitable for laboratory-scale equipment. As a result, the authors have designed a feeding cluster for Thermoplastic Polyurethane (TPU) material according to the one-tank method, studying the roller parameters affecting the powder material. From there, the designer can adjust the appropriate compression level for each different type of powder material to create better quality products.