선택적 레이저 소결 공정을 이용한 쾌속 조형 시스템 개발

Solid Freeform Fabrication (SFF) using CO₂ laser is one of the Rapid Prototyping. It is used to fabricate in a short time any 3 dimensional shapes by layer-by-layer sintering of polymer, ceramic or metal powder. To develop this SFF system, it needs effective laser scanning path, temperature and z-axis control for lamination. This study has applied 3-axis Dynamic Focusing Scanner for scanning large area instead of the existing f8 lens using commercial Selective Laser Sintering (SLS). Also the structure analysis and the development of control algorithm for sintering process have performed. In this study, the temperature evaluation for sintering process has performed and the sintering test of polyamid is now in process.