LAMINATION MOLDING APPARATUS

PROBLEM TO BE SOLVED: To provide a lamination molding apparatus capable of suppressing decrease in the accuracy of forming a molded object by imparting vibration only to a powder layer discharged to a predetermined height of the molded object.SOLUTION: The lamination molding apparatus forms a molded...

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Bibliographische Detailangaben
Hauptverfasser:	HARAJIRI KATSUJI, NIWA SEIJI, ITO KATSUHIRO, MITSUYA YOSHIYUKI, KIMURA TAKEYUKI, KIDA YUKIYOSHI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	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 ARTIFICIAL STONE CASTING CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE LIME, MAGNESIA MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER METALLURGY PERFORMING OPERATIONS POWDER METALLURGY REFRACTORIES SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS SLAG TRANSPORTING TREATMENT OF NATURAL STONE WORKING METALLIC POWDER WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a lamination molding apparatus capable of suppressing decrease in the accuracy of forming a molded object by imparting vibration only to a powder layer discharged to a predetermined height of the molded object.SOLUTION: The lamination molding apparatus forms a molded object 50 by repeating a step of supplying a powder into a molding tank 3 to form a powder layer 51 and a step of irradiating a predetermined region of the powder layer 51 with a laser beam LB to sinter or to melt and solidify the layer to form a cured layer 50 in a predetermined shape. The apparatus includes a vibration device 15 configured to be able to impart vibration to the powder layer 51. Imparting vibration or no vibration by the vibration device 15 is controlled based on a determination whether or not the height of the powder layer 51 reaches the height of a work base 40 set in the molding tank 3.SELECTED DRAWING: Figure 1 【課題】造形物の所定高さまで充填される粉末層に対してのみ振動を付与することで、造形物の形成精度の低下を抑制することが可能な積層造形装置を提供する。【解決手段】造形槽３内に粉末を供給することで粉末層５１を形成する工程と、粉末層５１の所定領域にレーザビームＬＢを照射して焼結又は溶融固化させることにより所定形状の硬化層５０を形成する工程とを繰り返すことで造形物５０を形成する積層造形装置であって、粉末層５１に対して振動を付与可能に構成された加振装置１５を備え、粉末層５１の高さが造形槽３内に設置されたワーク土台４０の高さに到達したか否かに基づいて、加振装置１５による振動の有無が制御される積層造形装置。【選択図】図１