레이저 소결 방식 3D 프린팅 시스템의 제작 모델 변형 경향성 분석

A wide range of industries are applying 3D printing technology in their fields, since the 3D printing technology is the most important research topic in the world. Most automotive industry has already recognized 3D printing technology as a promising manicuring method, so that they utilize 3D printers in their design development, research and production processes. Selective laser sintering (SLS) process which is widely used in auto part development process, however, hinder automakers from utilizing the technology directly to enhance their development process. In other words, SLS process causes curved shapes due to thermal deformation -thermal expansion and thermal contraction, in the powder sintering and cooling process, accompanies multi-phase changes of the raw materials. In this research, we aim to investigate and analyze the deformation pattern of SLS 3D printed samples by size, shape, location in SLS platform (using 3D Systems’ sPro60 SD).