METHODS AND SYSTEMS FOR PRINTING GRADED MATERIAL BY ROLLER-BASED DEPOSITION OF MULTIPLE POWDERS

To provide a method for making 3D components having graded material properties.SOLUTION: There are provided method and system of using a roller-based deposition process to place two or more powders at some level of precision to build a multi-material, functionally-graded component. Instead of formul...

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Bibliographische Detailangaben
Hauptverfasser:	KATHRYN F MURPHY, JEROME UNIDAD
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 CASTING MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER PERFORMING OPERATIONS POWDER METALLURGY SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURESCONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING CEMENT, CLAY, OR STONE WORKING METALLIC POWDER WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	To provide a method for making 3D components having graded material properties.SOLUTION: There are provided method and system of using a roller-based deposition process to place two or more powders at some level of precision to build a multi-material, functionally-graded component. Instead of formulating a liquid ink by dispersing powder feed stocks (metal or ceramic) in some binder-solvent mixtures, there is detailed the use of two different types of fluid deposited in a digital form on a roller surface. The two different types of fluids generate a "wetted pixel" that subsequently can capture a specific powder type with an affinity only to that fluid. Alternatives such as electrostatics, electrophotography, and the like are also provided to be used exclusively or with fluids to create an affine pixel to a particular powder type.SELECTED DRAWING: Figure 2 【課題】傾斜材料特性を有する３Ｄ部品を作製する方法を提供する。【解決手段】多材料、機能的な傾斜部品を構築するために、いくつかのレベルの精度で２つ以上の粉末を配置するためのローラベースの堆積プロセスを使用する方法及びシステムが提供される。いくつかのバインダ溶媒混合物中に粉末原料（金属又はセラミック）を分散させることによって液体インクを配合する代わりに、ローラ表面上にデジタル様式で堆積された２つの異なるタイプの流体の使用が詳述されている。２つの異なるタイプの流体は、「湿潤画素」を生成し、これは次に、その流体にのみ親和性を有する特定の粉末タイプを捕捉することができる。また、特定の粉末タイプにアフィン画素を生成するために、排他的に又は流体と共に使用されるように、静電気、電気写真なども提供される。【選択図】図２