WO2022044930A1 - 積層造形焼成体および該積層造形焼成体の製造方法 - Google Patents

積層造形焼成体および該積層造形焼成体の製造方法 Download PDF

Info

Publication number
WO2022044930A1
WO2022044930A1 PCT/JP2021/030235 JP2021030235W WO2022044930A1 WO 2022044930 A1 WO2022044930 A1 WO 2022044930A1 JP 2021030235 W JP2021030235 W JP 2021030235W WO 2022044930 A1 WO2022044930 A1 WO 2022044930A1
Authority
WO
WIPO (PCT)
Prior art keywords
laminated
supporter
fired body
laminated model
model
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2021/030235
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
剛 本堂
彰広 川原
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Noritake Co Ltd
Original Assignee
Noritake Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Noritake Co Ltd filed Critical Noritake Co Ltd
Priority to EP21861358.6A priority Critical patent/EP4197728A4/en
Priority to US18/043,446 priority patent/US12479124B2/en
Priority to JP2022538071A priority patent/JP7190613B2/ja
Publication of WO2022044930A1 publication Critical patent/WO2022044930A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • 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
    • 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
    • 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
    • B22F10/10—Formation of a green body
    • B22F10/14—Formation of a green body by jetting of binder onto a bed of metal powder
    • 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
    • B22F10/40—Structures for supporting workpieces or articles during manufacture and removed afterwards
    • 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
    • B22F10/40—Structures for supporting workpieces or articles during manufacture and removed afterwards
    • B22F10/47—Structures for supporting workpieces or articles during manufacture and removed afterwards characterised by structural features
    • 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
    • B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
    • B28B11/243—Setting, e.g. drying, dehydrating or firing ceramic articles
    • 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
    • B29C64/30—Auxiliary operations or equipment
    • 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
    • B29C64/40—Structures for supporting 3D objects during manufacture and intended to be sacrificed after completion thereof
    • 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
    • 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
    • B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
    • B33Y40/20—Post-treatment, e.g. curing, coating or polishing
    • 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
    • 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
    • C04B35/01—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
    • 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
    • C04B35/01—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
    • C04B35/16—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 silicates other than clay
    • C04B35/18—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 silicates other than clay rich in aluminium oxide
    • 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
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/547—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on sulfides or selenides or tellurides
    • 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
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/56—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides
    • 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
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/58—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides
    • 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
    • C04B35/63416—Polyvinylalcohols [PVA]; Polyvinylacetates
    • 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
    • C04B35/64—Burning or sintering processes
    • 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
    • B22F10/40—Structures for supporting workpieces or articles during manufacture and removed afterwards
    • B22F10/43—Structures for supporting workpieces or articles during manufacture and removed afterwards characterised by material
    • 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
    • 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
    • B22F3/10—Sintering only
    • B22F2003/1042—Sintering only with support for articles to be sintered
    • 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
    • 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
    • B22F3/10—Sintering only
    • B22F2003/1042—Sintering only with support for articles to be sintered
    • B22F2003/1046—Sintering only with support for articles to be sintered with separating means for articles to be sintered
    • 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
    • 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
    • B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
    • 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
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • B22F5/04—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of turbine blades
    • 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
    • B29C64/141—Processes of additive manufacturing using only solid materials
    • B29C64/153—Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
    • 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
    • B29C64/165—Processes of additive manufacturing using a combination of solid and fluid materials, e.g. a powder selectively bound by a liquid binder, catalyst, inhibitor or energy absorber
    • 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
    • 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
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3206—Magnesium oxides or oxide-forming salts thereof
    • 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
    • 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
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3208—Calcium oxide or oxide-forming salts thereof, e.g. lime
    • 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
    • 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
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
    • 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
    • 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
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3232—Titanium oxides or titanates, e.g. rutile or anatase
    • 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
    • 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
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3244—Zirconium oxides, zirconates, hafnium oxides, hafnates, or oxide-forming salts thereof
    • 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
    • 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
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/327—Iron group oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3272—Iron oxides or oxide forming salts thereof, e.g. hematite, magnetite
    • 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
    • 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
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/327—Iron group oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3279—Nickel oxides, nickalates, or oxide-forming salts thereof
    • 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
    • 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
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3284—Zinc oxides, zincates, cadmium oxides, cadmiates, mercury oxides, mercurates or oxide forming salts thereof
    • 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
    • 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
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3418—Silicon oxide, silicic acids or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
    • 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
    • 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
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/48—Organic compounds becoming part of a ceramic after heat treatment, e.g. carbonising phenol resins
    • C04B2235/483—Si-containing organic compounds, e.g. silicone resins, (poly)silanes, (poly)siloxanes or (poly)silazanes
    • 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
    • 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
    • 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
    • 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
    • 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
    • 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
    • C04B2235/616—Liquid infiltration of green bodies or pre-forms
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
    • C04B2235/6562—Heating rate
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/94—Products characterised by their shape
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/94—Products characterised by their shape
    • C04B2235/945—Products containing grooves, cuts, recesses or protusions
    • 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

Definitions

  • the present invention relates to a laminated molding fired body and a method for manufacturing the laminated molding fired body. More specifically, the present invention relates to a configuration of a laminated molding fired body and a supporter that supports the laminated molding fired body and surrounds the laminated molding fired body.
  • a mixture of a powder material and a water-soluble resin is laminated, and water is given to a predetermined region to solidify the water-soluble resin.
  • a solidified powder layer By sequentially laminating the powder solidified layers, it is possible to form a laminated model (three-dimensional structure) having a desired three-dimensional shape. It is known that when a laminated model is modeled in additional modeling of a powder material (powder layered manufacturing), a supporter that supports the layered model is formed to properly maintain the shape of the layered model (Patent Document). 1-6).
  • the additive manufacturing is dried and fired. This drying may cause deformation of the laminated model from the completion of modeling to firing. Then, there is a possibility that the laminated model is fired while such deformation occurs, and the laminated model fired body is manufactured. Alternatively, deformation may occur in the process of firing the laminated model. In recent years, many cores for precision casting have been manufactured using powder additive manufacturing. Therefore, there is an increasing demand for suppressing deformation in laminated objects.
  • the present invention has been created in view of the above points, and an object of the present invention is to provide a technique for manufacturing a laminated molding fired body in which the occurrence of deformation and the like is highly suppressed.
  • the present inventors have focused on producing a supporter by using the same powder material as the powder material constituting the laminated model at the same time when producing the laminated model. Then, they have found that by forming a laminated model so as to surround the periphery with such a supporter, it is possible to remarkably suppress deformation of the laminated model due to drying or firing, and to complete the present invention. I arrived. According to the technique disclosed here, a laminated molding firing including a molding step of modeling a laminated model using powder for laminated modeling and a firing step of firing the laminated model to obtain a laminated model fired body. A method of manufacturing the body is provided.
  • the supporter supporting the laminated model is modeled together with the laminated model by using the modeling powder so as to surround the laminated model.
  • the manufacturing method having such a configuration it is possible to prevent the laminated model from being deformed in the manufacturing process (for example, drying, firing, etc.), and to provide the laminated model fired body in which such deformation is suppressed.
  • “surrounding” is not necessarily limited to the embodiment in which 100% by volume of the laminated model is arranged inside the supporter.
  • the "state in which the laminated model is surrounded by the supporter” means that at least 50% by volume or more of the laminated model is arranged inside the supporter.
  • the laminated model and the supporter are fired so as not to be bonded to each other to obtain the laminated model and the supporter. According to such a configuration, the effect of suppressing the deformation of the above-mentioned laminated model can be more preferably exhibited, and the easy removal property of the supporter fired body can be improved.
  • an interfering material made of an inorganic substance for preventing the laminated model from coming into contact with the support is arranged between the laminated model and the supporter.
  • the laminated model and the supporter are fired to obtain the laminated model fired body and the fired body of the supporter that are independent of each other. According to such a configuration, it is possible to prevent the laminated model and the supporter from being joined to each other inside the supporter, and it is possible to improve the ease of removal of the fired supporter.
  • the supporter has a mesh shape. According to such a configuration, in addition to the above-mentioned effects, the excess powder can be efficiently removed when the powder is removed by the production method disclosed here. In addition, the laminated model placed inside the supporter can be easily visually recognized.
  • the laminated modeling powder contains ceramic particles.
  • the ceramic particles include aluminum (Al), zirconium (Zr), titanium (Ti), zinc (Zn), nickel (Ni), iron (Fe), magnesium (Mg), calcium (Ca), and the like. And any of oxides, nitrides, carbides, and sulfides containing at least one element selected from the group consisting of silicon (Si).
  • Si silicon
  • the interfering material is configured in the form of particles, and the average particle size of the particulate interfering material is larger than the average particle size of the ceramic particles. According to such a configuration, particularly when a ceramic laminated molded body is produced, the effect of suppressing deformation of the above-mentioned laminated model can be suitably exhibited, and the easy removal property of the supporter can be improved. ..
  • a laminated molding fired body is provided. It is arranged in a state of being surrounded by the fired body of the supporter that supports the laminated shaped fired body. Deformation from the laminated model is suppressed in such a laminated model fired body.
  • the "state in which the laminated molded body is surrounded by the supporter fired body” means that at least 50% by volume or more of the laminated model fired body is arranged inside the supporter fired body.
  • the laminated shaped fired body is not joined to each other with the supporter fired body and is in a movable state inside the supporter fired body.
  • the laminated molding fired body having such a structure has improved the easy removal property of the supporter fired body.
  • the laminated molding fired body and the supporter fired body are made of a ceramic body having the same composition. According to such a configuration, in addition to the above-mentioned effects, the ease of manufacturing the laminated molded fired body is improved.
  • the fired supporter body has a mesh shape. According to such a configuration, the ease of removal of the supporter fired body and the ease of manufacturing the laminated molded body are further improved. In addition, the laminated molded body placed inside the supporter fired body can be easily visually recognized from the outside.
  • the ceramic body is aluminum (Al), zirconium (Zr), titanium (Ti), zinc (Zn), nickel (Ni), iron (Fe), magnesium (Mg), calcium (Ca), and silicon. It comprises any of oxides, nitrides, carbides, and sulfides containing at least one element selected from the group consisting of (Si). Such a configuration can be preferably realized in a ceramic laminated molding fired body containing the above-mentioned materials.
  • FIG. 1 is a flow chart schematically showing a method for manufacturing a laminated molded fired body according to an embodiment.
  • FIG. 2 is a schematic perspective view showing a laminated model and a supporter according to an embodiment.
  • FIG. 3 is a sectional view taken along line III-III of FIG.
  • FIG. 4 is a schematic partial perspective view showing the laminated model and the supporter according to the modified example 1.
  • FIG. 5 is a schematic diagram showing a procedure of a suitable embodiment according to the present invention.
  • FIG. 6 is an observation image of the laminated molded body and the supporter fired body according to the above embodiment.
  • the technique disclosed here is to form a cured layer (powder solidified layer) having a predetermined cross-sectional shape by bonding inorganic materials contained in a laminated molding powder with a binder, and forming the cured layers while sequentially laminating them. Thereby, it can be applied to various additional modeling for modeling a laminated model having a desired three-dimensional shape.
  • the technique disclosed herein is particularly preferably applied to addition molding using a powder fixing type laminating method. In such a powder fixing type laminating method, typically, a powder for laminating molding is deposited in a thin layer, and then a molding liquid containing water is mixed in a predetermined region of the deposit to form a cured layer, and this curing is performed.
  • a laminated model By repeatedly laminating the layers, a laminated model is formed.
  • the present invention will be described in more detail by taking as an example a case where it is mainly applied to addition molding using a powder fixing type laminating method, but it is not intended to limit the scope of the present invention.
  • the present invention can also be applied to stereolithography technology.
  • a laminated model can be formed by irradiating a slurry obtained by mixing inorganic particles (for example, ceramic particles) with a photocurable resin with light and curing the mixture.
  • the present invention can also be applied to a laminated molding technique using gypsum (for example, anhydrous gypsum (anhydrous calcium sulfate: CaSO 4 )), cement, or the like.
  • the method for producing a laminated molding fired body disclosed here roughly includes a molding step S10, a firing step S20, and a removing step S30.
  • the modeling step S10 includes modeling a laminated model using the powder for layered modeling. This modeling can be performed using a laminated modeling device that models a three-dimensional object based on three-dimensional data or the like corresponding to the laminated model to be modeled.
  • a laminated model is formed by a powder fixing type laminating method using a layered modeling powder.
  • the modeling step S10 when the laminated model is formed as described above, the supporters that support the laminated model are also modeled. That is, the objects to be modeled in this step are the target laminated model and supporter.
  • the supporter 20 has at least one of two ends in a predetermined direction (Z direction in FIG. 3) (two ends 21a, 21b in this embodiment). ) Is provided with an open frame portion 21.
  • the frame portion 21 is provided with a holding portion 22 so as to close the opening.
  • the laminated model 10 is surrounded by the frame portion 21 and the holding portion 22 inside the supporter 20.
  • the holding portion 22 is configured so that the laminated model 10 surrounded by the inside of the supporter 20 can be visually recognized from the outside. With such a configuration, workability in the powder dusting process and the firing process, which will be described later, can be improved.
  • the holding portion 22 is configured in a mesh shape (mesh shape). Such a mesh shape is formed by connecting the tip of one of the first holding portion 22a and the second holding portion 22b, which will be described later, and the end portion 21a or the end portion 21b of the frame portion 21 to each other.
  • the holding portion 22 is composed of a first holding portion 22a and a second holding portion 22b.
  • the first holding portion 22a extends from the upper surface 24 (the surface of the frame portion 21 on the end portion 21a side) and the lower surface 25 (that is, the surface of the frame portion 21 on the end portion 21b side) of the supporter 20 toward the laminated model 10. There is. It is preferable that the tip of the first holding portion 22a is not joined to the laminated model 10 and the laminated model 10 is in a movable state inside the supporter 20. The tip of the first holding portion 22a does not have to come into contact with the laminated model 10 (frame A1 in FIG. 3), or may come into contact with it (frame A2).
  • the second holding portion 22b extends from the upper surface 24 and the lower surface 25 of the supporter 20 toward the other facing surface, and connects the upper surface 24 and the lower surface 25.
  • the second holding portion 22b may be adjacent to the laminated model 10 in a state of being surrounded by the inside of the supporter 20. In such a case, the second holding portion 22b and the laminated model 10 are not joined. Although not particularly limited, it is preferable that the second holding portion 22b and the laminated model 10 do not come into contact with each other in consideration of the operation in the firing step S20 described later.
  • the structure of the holding portion as described above is suitable for suppressing the occurrence of deformation due to drying or firing in the manufacturing process of the laminated molded body. It is also preferable from the viewpoint of improving the ease of taking out the inner laminated molded body by removing the supporter fired body.
  • the laminated model 10 may be in an immovable state inside the supporter 20 as long as the laminated model fired body is not deformed or damaged by the removal of the supporter fired body.
  • the laminated model 10 and the holding portion 22 may be joined to each other.
  • a part of the first holding portion 22a may be joined to the laminated model 10.
  • the laminated modeling portion 10 may be in an immovable state inside the supporter 20.
  • each grid constituting the mesh are not particularly limited, and can be appropriately set as needed.
  • the holding portion 22 extends substantially vertically from the upper surface 24 and the lower surface 25 toward the laminated model 10 or the other facing surface, but is not limited thereto. As long as the effect of the present invention can be realized, the holding portion 22 may face the laminated model 10 or the other facing surface at an appropriate angle ⁇ . Further, although not particularly limited, the frame portion 21 may be provided with a through hole 21c, if necessary. By providing the through hole, it becomes easy to discharge the surplus powder from the inside of the supporter to the outside in the powder removing process described later. The size, shape, and number of the through holes 21c are not particularly limited and can be appropriately set as needed.
  • both the laminated model and the supporter are modeled. Therefore, these constituent materials can be made into the same powder for laminated molding.
  • the laminated molding powder various inorganic materials that can be contained in this type of laminated molding powder can be selected without particular limitation.
  • the laminated modeling powder may contain an organic material as a binder (for example, a water-soluble organic material).
  • the particles made of an inorganic material for example, ceramic particles mainly composed of ceramic can be preferably used. Examples of such ceramics include, but are not limited to, various metal oxides, metal nitrides, metal carbides, metal sulfides, and the like.
  • metal includes metalloids.
  • ceramic particles mainly composed of oxides, nitrides, carbides, sulfides, etc. containing at least one element belonging to Group 4 to Group 14 of the periodic table can be preferably used. .. Further, ceramic particles mainly composed of oxides, nitrides, carbides, sulfides and the like containing at least one element belonging to Group 2 of the periodic table can be preferably used. Any of aluminum (Al), zirconium (Zr), titanium (Ti), zinc (Zn), nickel (Ni), iron (Fe), magnesium (Mg), calcium (Ca), and silicon (Si).
  • Inorganic particles mainly composed of oxides, nitrides, carbides, sulfides and the like containing any one of the elements are preferable.
  • Ceramic particles mainly composed of oxides, nitrides, carbides, etc. containing an aluminum (Al) element can be preferably used.
  • suitable examples of the inorganic particles include aluminum oxide (for example, alumina) particles, zirconium oxide (for example, zirconia) particles, titanium oxide (for example, titania) particles, silicon oxide (for example, silica) particles, zinc oxide particles, and iron oxide.
  • aluminum oxide for example, alumina
  • zirconium oxide for example, zirconia
  • titanium oxide for example, titania
  • silicon oxide for example, silica
  • zinc oxide particles and iron oxide.
  • Oxide particles such as particles, nickel oxide particles, cerium oxide (eg ceria) particles, magnesium oxide (eg magnesia) particles, chromium oxide particles, manganese dioxide particles, barium titanate particles, calcium carbonate particles, barium carbonate particles; silicon nitride
  • Oxide particles such as particles, nickel oxide particles, cerium oxide (eg ceria) particles, magnesium oxide (eg magnesia) particles, chromium oxide particles, manganese dioxide particles, barium titanate particles, calcium carbonate particles, barium carbonate particles; silicon nitride
  • inorganic particles composed mainly of any of nitride particles such as particles and boron nitride particles; carbide particles such as silicon carbide particles and boron carbide particles; and the like. Inorganic particles may be used alone or in combination of two or more.
  • the inorganic particles may be composed of gypsum (for example, anhydrous gypsum (anhydrous calcium sulfate: CaSO 4 )).
  • metal particles composed mainly of metal can be used.
  • various metals used in the modeling technique using a metal material can be selected without particular limitation.
  • a simple substance of a metal element belonging to Groups 4 to 14 of the periodic table or an alloy containing at least one of the metal elements can be selected.
  • simple substances of magnesium (Mg) and alloys containing Mg can also be used.
  • the metal may be a simple substance of any one of aluminum (Al), zirconium (Zr), titanium (Ti), zinc (Zn), nickel (Ni), iron (Fe), and magnesium (Mg). Alloys containing at least one of the metal elements are preferred.
  • aluminum particles, nickel particles, and iron particles are preferable in that they can form a high-strength model.
  • composition of the inorganic particles and the binder described later “consisting mainly of A” means that the ratio of A to the inorganic particles or the binder (purity of A) is 90 on a mass basis. % Or more (preferably 95% or more). Inorganic particles and binders may contain unavoidable impurities.
  • the shape (outer shape) of the inorganic particles is not particularly limited.
  • the inorganic particles may be spherical or non-spherical. From the viewpoint of mechanical strength, ease of manufacture, and the like, the inorganic particles are preferably spherical.
  • spherical shape includes a substantially spherical shape.
  • the average particle size of the inorganic particles is not particularly limited, but may be, for example, 5 ⁇ m or more and 100 ⁇ m or less. From the viewpoint of maintaining the fluidity of the laminated molding powder, the average particle size of the inorganic particles is preferably 10 ⁇ m or more, more preferably 15 ⁇ m or more, and particularly preferably 20 ⁇ m or more. From the viewpoint of suppressing stacking deviation, the average particle size of the inorganic particles is preferably 50 ⁇ m or less.
  • the term "average particle size" as used herein means the particle size at an integrated value of 50% in the particle size distribution measured based on the particle size distribution measuring device based on the laser scattering / diffraction method, that is, 50%. It means the volume average particle diameter (D50 diameter).
  • the content of inorganic particles (inorganic material) in the laminated modeling powder is not particularly limited.
  • the content of the inorganic particles is preferably 60 parts by mass or more, more preferably 70 parts by mass or more, still more preferably 70 parts by mass or more, when the total amount of the powder for laminated molding is 100 parts by mass, from the viewpoint of improving mechanical strength and the like. It is 80 parts by mass or more.
  • the upper limit of the content of the inorganic particles is not particularly limited, but may be, for example, 95 parts by mass or less.
  • the laminated molding powder may contain a binder if necessary.
  • the shape of the binder is not particularly limited, but may be, for example, in the form of particles.
  • the binder is a component that adheres the inorganic particles to each other.
  • the binder can be, for example, a water-soluble organic material. When this is mixed with a modeling liquid containing water, it can be dissolved in water and the inorganic particles can be adhered to each other.
  • the material and properties of the water-soluble organic material are not particularly limited.
  • any of thermoplastic resins vinyl alcohol-based resins, isobutylene-based resins, polyamide-based resins, polyester-based resins, etc.
  • thermosetting resins melamine-based resins, etc.
  • polysaccharides cellulose derivatives, etc.
  • water-soluble waxes water-soluble waxes.
  • a water-soluble organic material composed mainly of the above is preferably used.
  • an organic material other than those described above for example, polyethylene glycol or the like
  • the water-soluble organic material may be used alone or in combination of two or more.
  • the volume ratio of the binder to the total volume of the laminated molding powder (meaning the volume excluding the gaps between the particles) is not particularly limited, but can be approximately 20% by volume or more. Further, the volume ratio of the binder can be approximately 60% by volume or less.
  • the binder and the inorganic particles are not adhered to each other and may exist as independent particles.
  • a binder may be attached to the surface of the inorganic particles from the viewpoint of improving the strength of the modeled object. That is, a part or all of the inorganic particles may be coated with a binder.
  • the laminated molding powder may contain known additives such as a dispersant, a thickener, a printing aid and the like, which can be used for this type of laminated molding powder, if necessary.
  • the content of such an additive may be appropriately set according to the purpose of the addition and does not characterize the present invention, and therefore detailed description thereof will be omitted.
  • the method for preparing the powder for laminated modeling is not particularly limited. It is advisable to mix each component contained in the laminated molding powder by using a well-known mixing method. For example, a commercially available V-type mixer, rocking mixer, tumbler mixer, mixing container and the like can be used.
  • the mode in which these components are mixed is not particularly limited, and for example, all the components may be mixed at once, or may be mixed in an appropriately set order.
  • the above-mentioned powder for laminated modeling can be used for modeling a laminated model, for example, in a mode of being mixed with a modeling liquid containing water.
  • a modeling liquid containing water As the solvent used in the modeling liquid, pure water, ultrapure water, ion-exchanged water (deionized water), distilled water and the like can be preferably used.
  • the modeling liquid may further contain an organic solvent (lower alcohol, lower ketone, etc.) that can be uniformly mixed with water.
  • water may be 40% by volume or more and 100% by volume or less of the solvent contained in the modeling liquid.
  • Such a modeling liquid can be mixed at a ratio of 20 parts by mass to 80 parts by mass (typically 40 parts by mass to 60 parts by mass) with 100 parts by mass of the laminated modeling powder at the time of modeling.
  • the modeling liquid may contain known additives that can be used in the modeling liquid, such as dyes, organic pigments, inorganic pigments, wetting agents, and flow rate increasing agents, if necessary.
  • additives such as dyes, organic pigments, inorganic pigments, wetting agents, and flow rate increasing agents, if necessary.
  • the content of the additive may be appropriately set according to the purpose of the addition and does not characterize the present invention, and therefore detailed description thereof will be omitted.
  • the method of modeling a laminated model using the powder for layered modeling is not particularly limited.
  • a modeling liquid can be supplied to a predetermined region in the layer to form a laminated model.
  • a laminated model can be modeled using a 3D printer that models a three-dimensional object based on three-dimensional data or the like corresponding to the laminated model to be modeled.
  • Such a 3D printer may include an inkjet for dropping a modeling liquid and a cutting table on which a laminated modeling powder is placed.
  • Operation 1 The powder for laminated modeling is filled (deposited) in layers on a cutting table so as to have a thickness (for example, 0.01 mm to 0.3 mm) corresponding to each layer of the laminated model to be modeled.
  • Operation 2 The modeling liquid is dropped from the inkjet head to the portion to be cured (that is, the portion corresponding to a part of the laminated modeling object to be modeled) in the layered layered powder (deposit) for layered modeling. do. Then, the binder contained in the dropped portion is dissolved and the inorganic particles are adhered to each other to form a cured layer (layered solid substance).
  • Operation 3 The cutting table is lowered vertically by the thickness corresponding to each layer of the laminated model.
  • the uncured laminated modeling powder is finally removed (also referred to as "powder removal process"), and the modeling of the laminated modeling is completed.
  • a laminated model is formed by adhering a large number of inorganic particles with a melted binder.
  • the obtained laminated model may be dried.
  • the drying time is not particularly limited, but is generally about 1.5 hours to 24 hours, preferably 15 hours to 20 hours.
  • the manufacturing method disclosed here may include an impregnation step if necessary.
  • an impregnation step the laminated model and the supporter modeled in the modeling step S10 are impregnated with the coupling liquid containing the coupling agent.
  • the coupling liquid enters between the inorganic particles constituting the laminated model.
  • a coupling liquid generally used in this kind of powder additive manufacturing technique can be used without particular limitation. Suitable examples include, for example, a coupling agent containing silicon (Si), a coupling agent containing aluminum (Al), a coupling agent containing titanium (Ti), and a coupling agent containing zirconia (Zr). Since the type of coupling agent and the composition of the coupling liquid do not characterize the present invention, detailed description thereof will be omitted.
  • the method of impregnating the laminated model with the coupling liquid is not particularly limited.
  • a method of immersing a laminated model in a coupling liquid to impregnate the laminated model with a coupling liquid or a method of applying a coupling liquid to a laminated model to impregnate the laminated model with the coupling liquid. Etc. can be adopted.
  • the immersion time may be such that the coupling liquid sufficiently permeates the gaps between the inorganic particles in the laminated modeling powder.
  • the soaking time is usually 30 seconds to 600 seconds, and may be, for example, 50 seconds to 120 seconds.
  • After removing the laminated model from the coupling liquid it may be naturally dried before firing.
  • the drying time is not particularly limited, but may be about 1 hour to 10 hours, for example, 2 hours to 5 hours.
  • the laminated model and the supporter are fired to obtain a laminated model fired body and a supporter fired body.
  • This step is not particularly limited, but for example, the temperature is raised from room temperature to the maximum firing temperature at a constant heating rate under an arbitrary gas atmosphere, and the object to be fired is fired at the maximum firing temperature for a predetermined time. However, it can be carried out under a firing schedule in which the temperature is lowered at a constant high temperature rate.
  • the gas atmosphere at the time of firing is not particularly limited, but may be, for example, an atmospheric atmosphere, an oxygen atmosphere, a water vapor atmosphere, and an inert atmosphere such as a nitrogen atmosphere and an argon atmosphere.
  • the modeling powder contains a binder
  • it is preferably an air atmosphere and an oxygen atmosphere in consideration of the thermal decomposition of the binder.
  • the firing temperature conditions are not particularly limited, but the maximum firing temperature may be set in the range of 600 ° C. or higher and 1650 ° C. or lower. When the firing temperature is set in such a range, the inorganic particles contained in the laminated molding powder can be efficiently sintered. Further, when the modeling powder contains a binder, the binder can be efficiently thermally decomposed and removed under such temperature conditions. Further, when the impregnation step is carried out, it is possible to efficiently perform sintering between the inorganic particles via the metal element in the coupling agent by firing under the above temperature conditions.
  • the rate of temperature rise is not particularly limited, but may be, for example, 0.1 ° C./min to 10 ° C./min, preferably 1 ° C./min to 10 ° C./min.
  • the firing time at the maximum firing temperature is not particularly limited, but may be generally 1 hour to 10 hours (preferably 1.5 hours to 5 hours, particularly preferably 2 hours to 3 hours).
  • the temperature lowering rate is not particularly limited, but may be, for example, 0.1 ° C./min to 50 ° C./min, preferably 1 ° C./min to 10 ° C./min. Since the conditions in the firing step S20 may differ depending on the laminated model and the constituent materials of the supporter, the presence or absence of the binder, and the desired density of the fired body, they can be appropriately changed as necessary.
  • heat treatment under temperature conditions lower than the firing temperature may be separately performed before firing at the maximum firing temperature.
  • the laminated model and the supporter can be degreased.
  • heat treatment may be performed in advance under a temperature condition such that the binder burns for a predetermined period.
  • the temperature conditions and time in the degreasing treatment are not particularly limited, and can be appropriately changed depending on the type and content of the binder.
  • firing is performed so that the laminated model and the supporter do not join each other.
  • the means is not particularly limited as long as the object can be achieved, and examples thereof include the use of an interfering material for preventing the laminated model and the supporter from directly contacting each other during firing. If firing is performed with an interfering material placed between the laminated model and the supporter, sintering of the laminated model and the supporter can be effectively prevented.
  • the interfering material various inorganic substances used to achieve this kind of purpose can be preferably used.
  • the inorganic substance preferably has high heat resistance and fluidity, and preferably has a sintering temperature higher than the sintering temperature of the inorganic particles contained in the laminated molding powder.
  • the interfering material has a shape and size different from those of the inorganic particles contained in the laminated molding powder.
  • the shape is not particularly limited, but may be, for example, a plate shape or a particle shape.
  • the interfering material can be inorganic particles having an average particle size larger than the average particle size of the inorganic particles contained in the laminated molding powder.
  • the inorganic particles as the interfering material may be of a different type from the inorganic particles contained in the laminated molding powder, or may be of the same type.
  • the interfering material and the powder for laminated modeling that has not been solidified are removed. Then, a laminated molding fired body and a supporter fired body are obtained. Since the configurations of the laminated molded body and the supporter fired body are the same as the configurations of the laminated model 10 and the supporter fired body 20, the description thereof is omitted here.
  • the supporter fired body is removed, and the supporter fired body and the laminated molding fired body are separated.
  • the method of removing the supporter fired body is not particularly limited.
  • the supporter fired body can be removed by cutting, crushing, or the like by a conventional method. More specifically, the supporter fired body can be removed by cutting with, for example, a diamond cutter or the like.
  • the laminated molding fired body disclosed here includes a manufacturing method including a molding step of modeling a laminated model using a molding powder and a firing step of firing the laminated model to obtain a laminated model fired body. It was manufactured after that.
  • a supporter that supports the laminated model is molded together with the laminated model by using the powder for laminated model so as to surround the laminated model.
  • the laminated molding fired body obtained through the manufacturing method is arranged in a state of being surrounded by the supporter fired body supporting the laminated molding fired body. Therefore, the occurrence of deformation of the laminated molded body is highly suppressed.
  • the technology disclosed here is, for example, in a high temperature environment such as a component having a complicated structure and requiring a highly accurate structure (for example, an industrial gas turbine dynamic stationary blade (turbine blade), a jet engine, a turbocharger, etc.). It can be preferably applied in the manufacturing process of a core for precision casting for manufacturing heat-resistant structural parts used).
  • the entire laminated model 10 is arranged inside the supporter 20 (see FIGS. 2 and 3), but the present invention is not limited to this. As long as the effect of the present invention can be realized, the laminated model 10 does not necessarily have to be entirely arranged inside the supporter 20, and a part thereof may be arranged outside the supporter 20. Although not particularly limited, a part of the laminated model 10 may be arranged outside the supporter 20 (that is, the frame portion 21 and the holding portion 22). As shown in FIG. 4, the laminated model 210 is almost entirely arranged inside the supporter 220, but a part of the laminated model 210 penetrates the holding portion 222 (upper surface 224 in FIG. 4) to the outside of the supporter 220.
  • the volume ratio of the laminated model 210 that can be arranged outside the supporter 220 is, for example, less than 50% by volume, 30 It is preferable that the volume is 0% or less, preferably 20% by volume or less, and more preferably 10% by volume or less. That is, 50% by volume to 100% by volume of the laminated model 210 may be arranged inside the supporter 220.
  • the first holding portion 222a is not formed toward the portion that penetrates the holding portion 222 and protrudes to the outside. Therefore, in the first modification, the first holding portion 22a (see FIGS. 2 and 3) formed on the upper surface 24 side in the above embodiment may not be formed. That is, in the modified example 1, the first holding portion 222a may not be formed on the upper surface 224 side.
  • the laminated model 210 and the holding portion 222 may be in contact with each other at the portion where the laminated model 210 protrudes to the outside, and may not be in contact with each other. You may. Considering the dusting process before firing and the arrangement of the interfering material, it is preferable that the laminated model 210 and the holding portion 222 are not in contact with each other. However, the laminated model 210 and the supporter 220 may be in contact with each other as long as there is no inconvenience in the powder dusting process or the arrangement of the interfering material. In FIG. 4, the laminated model 210 projects outward from the upper surface 224, but is not limited to this.
  • the portion where the laminated model 210 protrudes may be a part of the lower surface or a part of the frame portion 221.
  • the configurations of the first holding portion 222a and the second holding portion 222b are the same as those in the above embodiment. Further, since various matters related to the manufacturing process are the same as those in the above embodiment, the description thereof is omitted here.
  • the shape of the holding portion 22 is such that the holding portion stably holds the laminated model 10 inside the supporter 20 and is surrounded from the outside to the inside of the supporter 20. As long as it can be visually recognized, it is not particularly limited. That is, the holding portion 22 does not necessarily have to have a mesh shape, and may be, for example, a porous plate.
  • Example 1 a laminated molded body and a supporter fired body having the shapes shown in FIGS. 2 and 3 were produced.
  • the laminated model 10 shown in FIG. 2 and the supporter 20 surrounding the layered model were designed.
  • the laminated model 10 a rectangular parallelepiped-shaped test piece as shown in the figure was designed.
  • the supporter 20 a supporter including a frame portion 21 and a holding portion 22 was designed.
  • the upper surface 24 and the lower surface 25 of the supporter according to Example 1 have a mesh shape.
  • the laminated model 10 and the supporter 20 are designed so as not to be joined to each other in the firing step described later. That is, we designed a structure in which the laminated model 10 and the supporter 20 are separated from each other due to a gap.
  • the laminated model 10 was in a movable state inside the supporter 20.
  • a mixed powder of silica and alumina as a raw material powder was prepared.
  • the weight ratio of silica to alumina in such a mixed powder was 80:20.
  • the mixed powder was adjusted so that the particle size D (10) was 5 ⁇ m, the particle size D (50) was 30 ⁇ m, and the particle size D (90) was 90 ⁇ m.
  • the particle size D (10), the particle size D (50), and the particle size D (90) are a particle size distribution measuring device (trade name: Microtrack MT-3000II, distributor: Microtrack) based on a laser scattering / diffraction method.
  • the particle sizes at 10%, 50%, and 90% of the integrated values in the flow distribution measured based on Bell).
  • This mixed powder and PVA are mixed in a mass ratio of 90:10, and a commercially available mixer (trade name: locking mixer (type: RM GHLV-30 (S) HD / MC)), distributor: Aichi Electric Co., Ltd.) was mixed for 20 minutes to obtain a powder for laminated molding.
  • This powder for laminated modeling was put into ProJet460Plus manufactured by 3D Systems, and both the laminated model and the supporter were modeled in 3D. Then, the laminated model and the supporter were dried at room temperature for 16 hours. Then, the uncured laminated modeling powder was removed (powder dust). Here, the mobility of the laminated model inside the supporter was confirmed.
  • the distinction between movable and non-movable here is shown in the corresponding column of Table 1.
  • a silane coupling agent (3-aminopropyltriethoxysilane) was prepared as an impregnating agent (coupling agent).
  • the above-mentioned laminated model and supporter were immersed in the impregnating liquid for 1 minute to impregnate the laminated model and supporter with the impregnating liquid (impregnation). Then, the laminated model and the supporter were taken out from the impregnating liquid, dried in the air for 1 hour, and then dried at 65 ° C. for 1 hour.
  • the dried laminated model and supporter were embedded in alumina powder (average particle diameter 80 ⁇ m to 90 ⁇ m) (Alcoa) as an interfering material.
  • Alcoa alumina powder
  • the specific firing conditions were that the temperature was raised to 1250 ° C. at a heating rate of 2 ° C./min in the air atmosphere, and the temperature was maintained at 1250 ° C. for 2 hours. By such firing, a laminated molding fired body and a supporter fired body were obtained (FIG. 6).
  • the supporter fired body was cut and removed with a diamond cutter, and the laminated model fired body was separated.
  • ATOS Capsule manufactured by Marubeni Information Systems Co., Ltd. as a measuring device, data on the three-dimensional shape of the laminated molded fired body was acquired. The data of the three-dimensional shape was compared with the 3D data (data at the time of design) of the three-dimensional shape of the laminated model before firing. Then, the amount of deformation caused by the drying and firing was calculated. The maximum value of such a deformation amount is described in the "deformation amount" column of Table 1.
  • Example 2 a laminated molded body and a supporter fired body having the shape shown in FIG. 2 were produced.
  • the laminated model 10 and the supporter 20 surrounding the laminated model were designed (see FIG. 2).
  • the laminated model 10 and the supporter 20 are designed to be joined to each other.
  • the laminated model 10 and the supporter 20 were not separated from each other due to a gap.
  • burial using an interfering material was not performed.
  • the laminated molded body and the supporter fired body according to Example 2 were produced.
  • the supporter fired body could not be removed after firing. Therefore, in Example 2, the data of the three-dimensional shapes of the laminated model and the laminated model fired body were not compared. In the corresponding column of Table 1 for Example 2, "-" is described, which indicates that such data was not compared.
  • Example 3 In Example 3, only the laminated model 10 was modeled and fired to obtain only the laminated model fired body (see FIG. 2). That is, in Example 3, the supporter 20 was not modeled and the supporter fired body was not produced. In Example 3, burial using an interfering material was not performed. Using the same materials and methods as in Example 1, the laminated molded body according to Example 3 was produced. Using the same method as in Example 1, the three-dimensional shape of the laminated molded body and the three-dimensional shape of the laminated model according to Example 3 were compared. The data obtained for Example 3 are shown in Table 1. In Example 3, since the supporter was not modeled as described above, the mobility of the laminated model inside the supporter was not evaluated. Therefore, "-" is described in the corresponding column.
  • Example 1 As shown in Table 1, in Examples 1 and 2, when the laminated model is formed, the supporter surrounding the laminated model is formed, and the laminated model before firing and the laminated model after firing are formed. The deformation between was significantly suppressed. In Example 1, the laminated model and the supporter are fired so as not to join each other. Therefore, the supporter fired body could be easily removed from the laminated model fired body after firing. Further, when the supporter fired body was removed, the occurrence of damage due to such removal was more significantly suppressed for the laminated model fired body. On the other hand, in Example 3, the supporter surrounding the laminated model was not modeled. In Example 3, when the laminated model was dried, deformation such as warpage was confirmed.
  • a method for manufacturing a laminated modeling fired body including a modeling step of modeling a laminated model using powder for laminated modeling and a firing step of firing the laminated model to obtain a laminated model fired body.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Producing Shaped Articles From Materials (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Powder Metallurgy (AREA)
PCT/JP2021/030235 2020-08-31 2021-08-18 積層造形焼成体および該積層造形焼成体の製造方法 Ceased WO2022044930A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP21861358.6A EP4197728A4 (en) 2020-08-31 2021-08-18 FIRED LAMINATE MOLDED BODY AND METHOD FOR PRODUCING THE FIRED LAMINATE MOLDED BODY
US18/043,446 US12479124B2 (en) 2020-08-31 2021-08-18 Additive manufactured fired body, and method for manufacturing the additive manufactured fired body
JP2022538071A JP7190613B2 (ja) 2020-08-31 2021-08-18 積層造形焼成体および該積層造形焼成体の製造方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2020-145503 2020-08-31
JP2020145503 2020-08-31

Publications (1)

Publication Number Publication Date
WO2022044930A1 true WO2022044930A1 (ja) 2022-03-03

Family

ID=80354194

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2021/030235 Ceased WO2022044930A1 (ja) 2020-08-31 2021-08-18 積層造形焼成体および該積層造形焼成体の製造方法

Country Status (4)

Country Link
US (1) US12479124B2 (https=)
EP (1) EP4197728A4 (https=)
JP (1) JP7190613B2 (https=)
WO (1) WO2022044930A1 (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202300006870A1 (it) * 2023-04-07 2024-10-07 Durst Group Ag "Struttura di supporto per Material Jetting"

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017024929A (ja) * 2015-07-17 2017-02-02 ローランドディー．ジー．株式会社 三次元造形物の焼成方法
JP2017077707A (ja) * 2015-10-22 2017-04-27 ローランドディー．ジー．株式会社 ３次元造形データ生成装置およびこれを備えた３次元造形システム
JP2018141225A (ja) * 2017-02-28 2018-09-13 セイコーエプソン株式会社 三次元造形物製造用組成物および三次元造形物の製造方法
JP2019111803A (ja) * 2017-12-22 2019-07-11 日本特殊陶業株式会社 造形物の製造方法
JP2020084311A (ja) * 2018-11-30 2020-06-04 キヤノン株式会社 造形方法及び造形装置
JP2020145503A (ja) 2019-03-04 2020-09-10 モレックス エルエルシー 導波管

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100028645A1 (en) * 2008-08-04 2010-02-04 Michael Maguire Adaptive supports for green state articles and methods of processing thereof
HU230841B1 (hu) * 2015-08-14 2018-08-28 Marton Bartos Berendezés és eljárás háromdimenziós tárgy elõállítására
JP2019513183A (ja) 2016-02-16 2019-05-23 アリゾナ・ボード・オブ・リージェンツ・オン・ビハーフ・オブ・アリゾナ・ステイト・ユニバーシティーＡｒｉｚｏｎａ Ｂｏａｒｄ ｏｆ Ｒｅｇｅｎｔｓ ｏｎ ｂｅｈａｌｆ ｏｆ Ａｒｉｚｏｎａ Ｓｔａｔｅ Ｕｎｉｖｅｒｓｉｔｙ 様々な材料の溶解性サポートを用いる３ｄプリンティングを使用する金属製またはセラミックス製部品の製作
EP3442772A4 (en) * 2016-04-14 2019-11-13 Desktop Metal, Inc. GENERATIVE MANUFACTURING WITH SUPPORT STRUCTURES
US10800108B2 (en) * 2016-12-02 2020-10-13 Markforged, Inc. Sinterable separation material in additive manufacturing
EP4000878B1 (en) 2016-12-02 2023-12-06 Markforged, Inc. Method of reducing distortion in an additively manufactured part
CA3040929C (en) 2016-12-02 2023-08-01 Markforged, Inc. Sintering additively manufactured parts with a densification linking platform
KR102493373B1 (ko) * 2017-04-20 2023-01-31 엑스제트 엘티디. 인쇄된 물품 제조 시스템 및 방법
US11148206B2 (en) * 2017-04-24 2021-10-19 Desktop Metal, Inc. Mold lock remediation
FR3074800B1 (fr) 2017-12-11 2019-11-01 S.A.S 3Dceram-Sinto Procede de fabrication de pieces en materiau ceramique par la technique des procedes additifs
JP6996310B2 (ja) 2018-01-19 2022-01-17 株式会社リコー 立体造形物の製造方法
US10940535B2 (en) * 2018-06-08 2021-03-09 General Electric Company Method and system for additive manufacturing

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017024929A (ja) * 2015-07-17 2017-02-02 ローランドディー．ジー．株式会社 三次元造形物の焼成方法
JP2017077707A (ja) * 2015-10-22 2017-04-27 ローランドディー．ジー．株式会社 ３次元造形データ生成装置およびこれを備えた３次元造形システム
JP2018141225A (ja) * 2017-02-28 2018-09-13 セイコーエプソン株式会社 三次元造形物製造用組成物および三次元造形物の製造方法
JP2019111803A (ja) * 2017-12-22 2019-07-11 日本特殊陶業株式会社 造形物の製造方法
JP2020084311A (ja) * 2018-11-30 2020-06-04 キヤノン株式会社 造形方法及び造形装置
JP2020145503A (ja) 2019-03-04 2020-09-10 モレックス エルエルシー 導波管

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4197728A4

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202300006870A1 (it) * 2023-04-07 2024-10-07 Durst Group Ag "Struttura di supporto per Material Jetting"
WO2024208450A1 (de) * 2023-04-07 2024-10-10 Durst Group Ag Stützstruktur für material jetting

Also Published As

Publication number Publication date
EP4197728A4 (en) 2024-10-02
JP7190613B2 (ja) 2022-12-15
US12479124B2 (en) 2025-11-25
EP4197728A1 (en) 2023-06-21
US20230330890A1 (en) 2023-10-19
JPWO2022044930A1 (https=) 2022-03-03

Similar Documents

Publication Publication Date Title
Li et al. Microstructure and properties of 3D‐printed alumina ceramics with different heating rates in vacuum debinding
US9381564B2 (en) 3-D printed casting shell and method of manufacture
CN101844206B (zh) 溃散性模及制造该溃散性模的方法
JP6812207B2 (ja) インベストメント鋳造用の中子のための組成物
CN1684786A (zh) 铸造方法以及用于进行该方法的制品
JP2015226935A (ja) アディティブマニュファクチャリングにより作られた鋳造用セラミックコア
CN107353036A (zh) 一种基于增材制造技术的多孔氮化硅陶瓷、其制备方法及其应用
CN105828976A (zh) 型芯的制造方法、以及利用该型芯的制造方法来获取型芯的涡轮构件的制造方法
CN104387105A (zh) 3d打印结合反应烧结制备多孔氧化铝陶瓷材料的方法
CN113165207A (zh) 陶瓷制品的制造方法及陶瓷制品
JP7190613B2 (ja) 積層造形焼成体および該積層造形焼成体の製造方法
Datta et al. Ceramics processing by additive manufacturing
CN116730739B (zh) 基于氯化铝作粘结剂的氧化铝陶瓷零件的3dp制造方法
KR101657022B1 (ko) 정밀 주조용 주형 및 그 제조 방법
JP2022155407A (ja) セラミックコア
CN109475928B (zh) 一种用于制造壳模的方法
Tian et al. Net-shaping of ceramic components by using rapid prototyping technologies
Rani et al. Additive Manufacturing of Ceramic‐Based Materials
JP6095935B2 (ja) 精密鋳造用鋳型の製造方法
KR101761047B1 (ko) 정밀 주조용 중자 및 그 제조 방법, 정밀 주조용 주형
Li et al. A review: Ceramic additive manufacturing
US20060249889A1 (en) Production and use of a sacrificial mold core for metal casting
Verma et al. Additively Manufactured Ceramic Lattice Structures: Fabrication, Challenges, and Applications
Verma et al. Challenges, and Applications
TW202417224A (zh) 使用冷凍方法對積層製造的初胚樣品進行除粉

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21861358

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2022538071

Country of ref document: JP

Kind code of ref document: A

ENP Entry into the national phase

Ref document number: 2021861358

Country of ref document: EP

Effective date: 20230313

NENP Non-entry into the national phase

Ref country code: DE

WWG Wipo information: grant in national office

Ref document number: 18043446

Country of ref document: US