THREE-DIMENSIONAL LAMINATED MODELING APPARATUS AND RADIATION POSITION DEVIATION DETECTION METHOD THEREFOR

• Main Authors: YAMADA AKIO, SUGAYA SHINJI, SOMA MINORU, TAKIZAWA MASAHIRO
• Format: Patent
• Language: English; Japanese
• Published: 17.01.2019
• Subjects: ADDITIVE MANUFACTURING TECHNOLOGY; ADDITIVE MANUFACTURING, i.e. MANUFACTURING OFTHREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVEAGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING,STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; CASTING; MAKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; PERFORMING OPERATIONS; POWDER METALLURGY; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING METALLIC POWDER; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

To provide a three-dimensional laminated modeling apparatus capable of forming a highly accurate three-dimensional structure without being affected by the mechanical accuracy of the stage.SOLUTION: The three-dimensional laminated modeling apparatus includes a stage, a reference member, and an electron detector. The stage supports a modeling container accommodating a powder material and changes its height together with the lamination of the powder material to keep the surface position of the powder material at a constant height. The reference member indicates a position in the horizontal direction of the stage by generating a predetermined reflected electron signal with respect to an electron beam set on the stage and focused and scanned on the surface of the powder material. The electron detector detects an electron signal reflected from the reference member.SELECTED DRAWING: Figure 3 【課題】ステージの機械的精度に影響されることなく精度の良い三次元構造物を造形できる三次元積層造形装置を提供する。【解決手段】粉末材料を収容した造形容器を支持するとともに粉末材料の積層と共に高さを変化させることで粉末材料の表面位置を一定の高さに保つステージと、ステージ上に設置され前記粉末材料の表面に焦点合わせて走査された電子ビームに対して所定の反射電子信号を発生させることで前記ステージの水平方向の位置を示す基準部材と、前記基準部材から反射される反射電子信号を検出する電子検出器と、を備えた三次元積層造形装置が提供される。【選択図】図３