JP2019512612A - 3dプリンティング方法 - Google Patents
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- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
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- B22F1/06—Metallic powder characterised by the shape of the particles
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- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
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- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
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- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/10—Formation of a green body
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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
- B22F3/10—Sintering only
- B22F3/105—Sintering only by using electric current other than for infrared radiant energy, laser radiation or plasma ; by ultrasonic bonding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D 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 [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D 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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- 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
- B22F3/105—Sintering only by using electric current other than for infrared radiant energy, laser radiation or plasma ; by ultrasonic bonding
- B22F2003/1053—Sintering only by using electric current other than for infrared radiant energy, laser radiation or plasma ; by ultrasonic bonding by induction
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- B22F2304/00—Physical aspects of the powder
- B22F2304/05—Submicron size particles
- B22F2304/056—Particle size above 100 nm up to 300 nm
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- B22F2304/00—Physical aspects of the powder
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- B22—CASTING; POWDER METALLURGY
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Abstract
Description
ニッケル粉末(球形、Particle Size Distribution 50%粒径(D50):約7〜8μm)2gとエチルセルロース0.2gをメチレンクロリド5gに分散させてスラリーを製造した。前記でニッケル粉末は、20℃における伝導度が約14.5MS/mであり、比透磁率が約600程度である。引き続いて、ディスペンサー(dispenser)を使用して前記スラリーを吐出して立替形状(線形状)を形成し、その立替形状に電磁場を印加して立替形状を焼成した。前記電磁場は、200Aの電流を約350kHzの周波数で印加して形成し、立替形状を電磁場内に約30秒間維持した。
スラリーの製造時にエチルセルロースの量を2.5gに変更したことを除いて、実施例1と同一に立替形状を形成し、電磁場を印加した。
球形のニッケル粉末の代わりに、ニードル型であり、長軸の長さが約10μm程度であるニッケル粉末を使用したことを除いて、実施例1と同一に立替形状を形成し、電磁場を印加した。
球形のニッケル粉末の代わりに、デンドライト型であり、長軸の長さが約8μm程度であるニッケル粉末を使用し、エチルセルロースの量を1gに変更したことを除いて、実施例1と同一に立替形状を形成し、電磁場を印加した。
ニッケル粉末の代わりに、球形の鉄(Fe)粉末(球形、Particle Size Distribution 50%粒径(D50):約6〜8μm)を使用したことを除いて、実施例1と同一に立替形状を形成し、電磁場を印加した。前記で鉄粉末は、20℃における伝導度が約13MS/mであり、比透磁率が約100,000程度である。
鉄(Fe)粉末(球形、Particle Size Distribution 50%粒径(D50):約6〜8μm)2gとメチルセルロース0.5gを水5gに分散させてスラリーを製造し、実施例1と同一に立替形状を形成した。その後、前記立替形状に段階的に電磁場を印加して焼成した。前記立替形状には、100Aの電流を200kHzの周波数で印加して形成した電磁場を10秒間、300Aの電流を350kHzの周波数で印加して形成した電磁場を30秒間、500Aの電流を380kHzの周波数で印加して形成した電磁場を10秒間順次印加した。
メチルセルロースの代わりに、ポリビニルアルコールを使用したことを除いて、実施例6と同一に立替形状を形成し、電磁場を印加した。
ニッケル粉末の代わりに、コバルト(Co)粉末(Particle Size Distribution 50%粒径(D50):約10〜14μm)を使用したことを除いて、実施例6と同一に立替形状を形成し、電磁場を印加した。前記でコバルト粉末は、20℃における比透磁率が約280程度である。
メチルセルロースの代わりに、ポリプロピレンカーボネートを使用したことを除いて、実施例6と同一に立替形状を形成し、電磁場を印加した。
ニッケルワイヤー(直径:約0.15mm)をソレノイドコイル(300A、370kHz)に通過させながら、基板の上に繰り返して吐出し、実施例1と同一に立替形状(線形状)を形成した。しかし、ソレノイドコイルを通過したニッケルワイヤーが複層で積層されると、層間の密着性が十分に確保されずに、付着しない部分も確認され、層間の区分が確実に認識された。
実施例と比較例の方式をそれぞれ適用し、線形状の厚さ100μm程度の立替形状をそれぞれ10μm、50μm、100μmおよび500μmの幅で形成することが可能であるかを確認した(解像度評価)。また、前記形成された各立替形状をスパチュラで横でひいて立替形状の維持力を確認した。前記段階で立替形状が維持されると、passedで下記表1に表記し、維持されなければ、failedで下記表1に表記した。
Claims (12)
- 比透磁率が90以上の伝導性金属を含む金属粉末または前記金属粉末を含むスラリーを使用して成形された立替形状に電磁場を印加する段階を含む3Dプリンティング方法。
- 前記金属粉末または前記スラリーを電磁場内で立替形状に成形する段階と;前記金属粉末または前記スラリーを電磁場を経由させた後、立替形状を有するように成形する段階または前記金属粉末または前記スラリーを立替形状に成形した後、電磁場を印加する段階と;を含む、請求項1に記載の3Dプリンティング方法。
- 前記伝導性金属は、20℃における伝導度が8MS/m以上である、請求項1に記載の3Dプリンティング方法。
- 前記伝導性金属は、ニッケル、鉄またはコバルトである、請求項1に記載の3Dプリンティング方法。
- 前記金属粉末または前記スラリーは、前記伝導性金属を重量を基準として30重量%以上含む、請求項1に記載の3Dプリンティング方法。
- 前記金属粉末は、粒度分布50%粒径が100nm〜100μmの範囲内にある、請求項1に記載の3Dプリンティング方法。
- 前記金属粉末は、球形、フレーク型、楕円体型、ニードル型またはデンドライト型である、請求項1に記載の3Dプリンティング方法。
- 前記スラリーは、前記金属粉末およびバインダーを含む、請求項1に記載の3Dプリンティング方法。
- 前記バインダーは、アルキルセルロース、ポリアルキレンオキシド、ポリアルキレンカーボネート、ポリビニルアルコールまたはリグニンである、請求項8に記載の3Dプリンティング方法。
- 前記スラリーは、前記金属粉末100重量部に対して5〜200重量部の前記バインダーを含む、請求項8に記載の3Dプリンティング方法。
- 前記電磁場は、100A〜1,000A範囲内の電流を印加して形成する、請求項1に記載の3Dプリンティング方法。
- 前記電磁場は、100kHz〜1,000kHz範囲内の周波数で電流を印加して形成する、請求項1に記載の3Dプリンティング方法。
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KR20160040360 | 2016-04-01 | ||
KR10-2016-0040360 | 2016-04-01 | ||
KR1020170040973A KR102056100B1 (ko) | 2016-04-01 | 2017-03-30 | 3d 프린팅 방법 |
KR10-2017-0040973 | 2017-03-30 | ||
PCT/KR2017/003615 WO2017171512A1 (ko) | 2016-04-01 | 2017-04-03 | 3d 프린팅 방법 |
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EP (1) | EP3437842B1 (ja) |
JP (1) | JP2019512612A (ja) |
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US20200308062A1 (en) * | 2019-03-28 | 2020-10-01 | Ut-Battelle, Llc | Slurry Mixtures for 3-D Slurry Extrusion of Artifacts |
WO2021029851A1 (en) * | 2019-08-09 | 2021-02-18 | Hewlett-Packard Development Company, L.P. | Three-dimensional printing kits |
US12005499B2 (en) | 2019-10-15 | 2024-06-11 | Hewlett-Packard Development Company, L.P. | Three-dimensional printing with melting point suppression agents |
DE102019007595A1 (de) * | 2019-11-01 | 2021-05-06 | Voxeljet Ag | 3d-druckverfahren und damit hergestelltes formteil unter verwendung von ligninsulfat |
KR102297422B1 (ko) | 2020-12-18 | 2021-09-03 | 한국생산기술연구원 | 3d 프린팅용 슬러리를 이용한 3d 프린팅 방법 |
KR102514484B1 (ko) * | 2021-03-23 | 2023-03-27 | 중앙대학교 산학협력단 | 경계면과 표면 처리를 가능하게 하는 3차원 콘크리트 프린팅 시스템 및 프린팅 방법 |
EP4454785A1 (de) * | 2023-04-27 | 2024-10-30 | CERATIZIT Austria Gesellschaft m.b.H. | Material zur additiven extrusionsbasierten bauteilherstellung |
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EP3437842A1 (en) | 2019-02-06 |
KR20170113415A (ko) | 2017-10-12 |
KR102056100B1 (ko) | 2019-12-17 |
US11577315B2 (en) | 2023-02-14 |
CN109070210A (zh) | 2018-12-21 |
US20190160531A1 (en) | 2019-05-30 |
EP3437842A4 (en) | 2019-04-17 |
CN109070210B (zh) | 2021-08-31 |
EP3437842B1 (en) | 2023-01-25 |
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