JP6447983B2 - 3d印刷デバイス用の焼結可能な供給原料 - Google Patents
3d印刷デバイス用の焼結可能な供給原料Info
- Publication number
- JP6447983B2 JP6447983B2 JP2017501222A JP2017501222A JP6447983B2 JP 6447983 B2 JP6447983 B2 JP 6447983B2 JP 2017501222 A JP2017501222 A JP 2017501222A JP 2017501222 A JP2017501222 A JP 2017501222A JP 6447983 B2 JP6447983 B2 JP 6447983B2
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- filament
- plasticizer
- filament according
- green body
- binder
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
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- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/10—Formation of a green body
- B22F10/18—Formation of a green body by mixing binder with metal in filament form, e.g. fused filament fabrication [FFF]
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- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/60—Treatment of workpieces or articles after build-up
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- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/12—Both compacting and sintering
- B22F3/16—Both compacting and sintering in successive or repeated steps
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/001—Rapid manufacturing of 3D objects by additive depositing, agglomerating or laminating of material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y70/00—Materials specially adapted for additive manufacturing
- B33Y70/10—Composites of different types of material, e.g. mixtures of ceramics and polymers or mixtures of metals and biomaterials
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
- C04B35/111—Fine ceramics
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/632—Organic additives
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/632—Organic additives
- C04B35/634—Polymers
- C04B35/63404—Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B35/63408—Polyalkenes
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- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/632—Organic additives
- C04B35/634—Polymers
- C04B35/63404—Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B35/63424—Polyacrylates; Polymethacrylates
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/632—Organic additives
- C04B35/634—Polymers
- C04B35/63404—Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B35/63444—Nitrogen-containing polymers, e.g. polyacrylamides, polyacrylonitriles, polyvinylpyrrolidone [PVP], polyethylenimine [PEI]
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/632—Organic additives
- C04B35/634—Polymers
- C04B35/63448—Polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C04B35/63456—Polyurethanes; Polyisocyanates
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/60—Treatment of workpieces or articles after build-up
- B22F10/62—Treatment of workpieces or articles after build-up by chemical means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y80/00—Products made by additive manufacturing
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- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
- C04B2235/54—Particle size related information
- C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
- C04B2235/5436—Particle size related information expressed by the size of the particles or aggregates thereof micrometer sized, i.e. from 1 to 100 micron
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
- C04B2235/54—Particle size related information
- C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
- C04B2235/5445—Particle size related information expressed by the size of the particles or aggregates thereof submicron sized, i.e. from 0,1 to 1 micron
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
- C04B2235/602—Making the green bodies or pre-forms by moulding
- C04B2235/6026—Computer aided shaping, e.g. rapid prototyping
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
- D01F6/60—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyamides
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/78—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolycondensation products
- D01F6/82—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolycondensation products from polyester amides or polyether amides
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Materials Engineering (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Civil Engineering (AREA)
- Composite Materials (AREA)
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- Optics & Photonics (AREA)
- Powder Metallurgy (AREA)
- Producing Shaped Articles From Materials (AREA)
Description
1980年代後半、金属射出成型(MIM:metal injection molding)及びセラミック射出成型(CIM:ceramic injection molding)を含む粉末射出成型プロセスが、確立された。これらのプロセスでは、微粉化された金属又はセラミック材料を、測定された量の結合剤材料と混合して、射出成型による形成として公知のプロセスを経てプラスチック加工設備により取り扱うことが可能な「供給原料」を形成する。成型プロセスは、単一操作で且つ高体積で、複雑な部品を成形することが可能である。そのようなプロセスの最終製造物は、一般に、様々な工業及び用途で使用される構成要素品目である。
前述の課題を解決するために、本発明は、3D印刷デバイスで使用するのに適切なフィラメントであって、
(a)金属(例えば、アルミニウム又は鋼)及び/又はセラミック粉末と;
(b)熱可塑性ポリマー及び少なくとも1種の可塑剤を含む、熱可塑性結合剤と;
(c)フィラメントの全重量を基準として0〜10重量%の間の添加剤と;
を含む又はこれらからなるフィラメントを提供する。
(i)本発明によるフィラメント、及び3D印刷デバイスを使用して、成形グリーン体をプリントするステップと;
(ii)成形グリーン体から可塑剤の少なくとも一部を除去するステップと;
(iii)ステップ(ii)から得られた成形グリーン体を焼結して、上記成形体を得るステップと;
を含む方法に関する。
本発明について以下に詳細に記述する前に、本発明は、本明細書に記述される特定の方法、プロトコル、及び試薬に限定されないことを理解されたい。その理由は、これらは変動し得るからである。本明細書で使用される用語は、単に特定の実施形態について記述する目的のものであり、添付される特許請求の範囲によってのみ限定されることになる本発明の範囲を限定することを意図しないことも理解されたい。他に定義されない限り、本明細書で使用される全ての技術的及び科学的用語は、当業者に一般に理解されるものと同じ意味を有する。
(a)金属(例えば、アルミニウム又は鋼)及び/又はセラミック粉末と;
(b)熱可塑性ポリマー及び少なくとも1種の可塑剤を含む、熱可塑性結合剤と;
(c)フィラメントの全重量を基準として0〜10重量%の間の添加剤と;
を含む又はこれらからなるフィラメントを提供する。
(i)本発明によるフィラメント、及び3D印刷デバイスを使用して、成形グリーン体をプリントするステップと;
(ii)成形グリーン体から可塑剤の少なくとも一部を除去するステップと;
(iii)ステップ(ii)から得られた成形グリーン体を焼結して、上記成形体を得るステップと;
を含む方法を提供する。
約15マイクロメートルの平均粒度を有する、噴霧化されたステンレス鋼粉末を、混練機で下記の結合剤成分と130℃で混合し、1時間均質化して、プラスチック状態の組成物を得た:
約1マイクロメートルの平均粒度を有する酸化アルミニウム粉末を、混練機で下記の結合剤成分と130℃で混合し、1時間均質化して、プラスチック状態の組成物を得た:
フィラメントの互いの結合力を試験するために、押し出されたフィラメントを互いに対して層状化した。120℃の温度で、フィラメントは融解し、いかなる圧力も加える必要なしに互いに対して表面的に接着した。このように調製したサンプルを、40℃のアセトン中に12時間抽出し、乾燥し、適切な条件下で焼結した(鋼をベースにした材料は、水素雰囲気中1360℃で、及び酸化アルミニウムをベースにした材料は、空気中1620℃で)。焼結密度は、理論上達成可能な値の95%よりも大きかった。
フィラメント内の結合剤が柔らか過ぎる場合、典型的な3Dプリンタの輸送デバイスは、十分な電力で印刷ヘッドにフィラメントを効果的に輸送することができなくなる。逆に、結合剤が硬過ぎる場合、フィラメント、特にセラミックをベースにしたフィラメントであって非常に微細なセラミック粒子を有するものは、非常に脆弱になり、これは取扱いに不便であり、プリント中のフィラメントの破壊をもたらす可能性もある。
メルトフローインデックス(MFI)は、熱可塑性材料の融解物の流れ易さの尺度である。これは、所定の選択的温度に対し、所定の選択的測定荷重により加えられた圧力によって、特定の直径及び長さの毛管内を10分で流れる材料の質量(単位:グラム)と定義される。
実施例1及び2の下で、上記にて概説した新しい複合材料は、熱溶解積層法高速プロトタイピング法でフィラメント供給原料を使用するために、首尾良く開発された。本発明の柔軟なフィラメントは、首尾良く製造された。フィラメントをスピンドルに巻き付け、適切な温度、例えば120℃で非常にうまく結合させることができた。新規なフィラメントの材料の特徴付けが、実施された。供給原料の材料の機械的試験値及びMFI値の解析は、FDMシステムなどの3D印刷システムで使用される供給原料の適切性を示す。さらに、この材料は、層同士の間で優れた結合を示し、したがって良好な構築プラットフォーム接着特性(build platform adhesion property)も有することになる。
Claims (19)
- 3D印刷デバイス用フィラメントであって、
(a)金属及び/又はセラミック粉末と、
(b)熱可塑性ポリマー及び少なくとも1種の可塑剤を含む、熱可塑性結合剤と、
(c)前記フィラメントの全重量を基準として0〜10重量%の間の添加剤と、
を含み又はこれらからなり、
DIN ISO 7619−1規格に従い20℃で測定した、前記熱可塑性結合剤のショアA硬度値が85〜95である、フィラメント。 - 前記金属及び/又はセラミック粉末が焼結可能である、請求項1に記載のフィラメント。
- 前記熱可塑性ポリマーが、ポリウレタン、ポリアミド、ポリビニルピロリドン、ポリアクリレート、ポリオレフィン、及びこれらの混合物からなる群から選択される、請求項1又は2に記載のフィラメント。
- 前記熱可塑性ポリマーが、コポリアミド、ポリアミド11、ポリアミド12、ポリエーテル−ブロックアミド、及びこれらの混合物からなる群から選択されるポリアミドである、請求項3に記載のフィラメント。
- 前記可塑剤が、有機溶媒を使用して、少なくとも20℃の温度で抽出することによって、前記フィラメントから少なくとも部分的に除去可能である、請求項1〜4のいずれか一項に記載のフィラメント。
- 前記少なくとも1種の可塑剤が、置換若しくは非置換の芳香族若しくは複素芳香族カルボン酸エステル、又はこれらの混合物である、請求項1〜5のいずれか一項に記載のフィラメント。
- 前記少なくとも1種の可塑剤が、ヒドロキシ安息香酸エステルの混合物である、請求項1〜6のいずれか一項に記載のフィラメント。
- 前記ヒドロキシ安息香酸エステルが、ヒドロキシ安息香酸と、分枝鎖状又は直鎖状アルコールとのエステルであり、
前記アルコールが、分枝鎖状又は直鎖状C8〜C22アルコール及びこれらの混合物からなる群から選択され、
2−プロピルヘプチルアルコール、イソデシルアルコール、1−ドコサノール、1−オクタデカノール、1−ドデカノール、2−エチルヘキシルアルコール、及びこれらの混合物から好ましくは選択される、請求項7に記載のフィラメント。 - 前記ヒドロキシ安息香酸エステルが、p−ヒドロキシ安息香酸エステルである、請求項7又は8に記載のフィラメント。
- 前記少なくとも1種の可塑剤がエステルの混合物であり、
前記エステルの混合物が、20℃で固体のエステルと20℃で液体のエステルとを含む、又は
20℃で固体のエステルのみ含む、請求項1〜9のいずれか一項に記載のフィラメント。 - 前記熱可塑性結合剤が、前記結合剤の全重量を基準として40重量%〜70重量%の間の可塑剤を含む、請求項1〜10のいずれか一項に記載のフィラメント。
- 前記熱可塑性結合剤が、100℃〜190℃の間の融解温度を有する、請求項1〜11のいずれか一項に記載のフィラメント。
- 前記フィラメントが、弾性を有し、0.5mm〜5mmの間の直径及び少なくとも10cmの長さを有する、請求項1〜12のいずれか一項に記載のフィラメント。
- 化合物(a)、(b)、及び(c)の量が、下記の表で実施形態(A)から(F)のいずれか1つに示された通りであり、但し示される重量パーセンテージは、前記フィラメントの全重量を基準とするものであって、
(a)前記金属及び/又はセラミック粉末と、
(b)前記熱可塑性ポリマー及び可塑剤を含む前記熱可塑性結合剤と、
(c)前記添加剤と、
に関して合計100重量%になる、請求項1〜13のいずれか一項に記載のフィラメント。
- 成形体の製造方法であって、
(i)請求項1〜14のいずれか一項に記載のフィラメント、及び3D印刷デバイスを使用して、成形グリーン体をプリントするステップと、
(ii)前記成形グリーン体から前記可塑剤の少なくとも一部を除去するステップと、
(iii)ステップ(ii)から得られた前記成形グリーン体を焼結して、前記成形体を得るステップと、
を含む方法。 - ステップ(ii)において、前記可塑剤は、前記グリーン体と、前記可塑剤を抽出することが可能な有機溶媒とを接触させることによって抽出され、前記抽出は、前記成形グリーン体の形状を変化させない、請求項15に記載の方法。
- 請求項1〜14のいずれか一項に記載のフィラメントの、3D印刷デバイスでの使用。
- フィラメントを用いて3Dプリントすることにより得られるグリーン体であって、
請求項1〜14のいずれか一項に定義された金属及び/又はセラミック粉末と、請求項1〜14のいずれか一項に定義された熱可塑性結合剤とを含む、グリーン体。 - 3D印刷デバイス用フィラメントを製造するための、請求項1〜14のいずれか一項に定義された結合剤の使用。
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| EP3167101B1 (en) | 2019-09-18 |
| US10737480B2 (en) | 2020-08-11 |
| US20200369019A1 (en) | 2020-11-26 |
| PL3167101T3 (pl) | 2020-03-31 |
| WO2016004985A1 (en) | 2016-01-14 |
| CN106661766A (zh) | 2017-05-10 |
| MY191292A (en) | 2022-06-14 |
| ES2753248T3 (es) | 2020-04-07 |
| US20170144222A1 (en) | 2017-05-25 |
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