산업용 SFFS의 최적 공정 제어

Abstract

This paper presents the optimal process control of newly developed SFFS (Solid Freeform Fabrication System). The process control of SFFS consists of nitrogen supplement, temperature setting, powder laminating, and laser sintering. The temperature setting has three steps of preheating, sustaining, and cooling as the process progresses. Powder laminating and laser sintering are carried out sequentially when the temperature reaches the desired point. The process is controlled by a PC-based controller which also supports a user-friendly interface and easy access for the parameters setting.