5축 기반 레이저 금속 프린팅에서의 가시화 시뮬레이션

Directed energy deposition (DED), an ASTM(American Society for Testing and Material) process classification of 3D printing or additive manufacturing (AM) process, has enabled to build full density metallic tools and parts using metal powders precisely delivered and controlled for deposition with no powder bed. Using 5-axis machine it is capable of building overhang/undercut parts with no support structures, which, however, requires an advanced process management that controls 5-axis tool paths for layer-by-layer builds. This study proposes a methodical approach for generating layer-by-layer DED tool paths visualized and validated for proper build of parts on 5-axis base table. It first introduces ‘three dimensional layer (3DL)’ information followed by visual simulations implemented with the proposed method.