JP2018532613A - 付加製造方法及び装置 - Google Patents
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- 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
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- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
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- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
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- B22F10/73—Recycling of powder
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/40—Radiation means
- B22F12/41—Radiation means characterised by the type, e.g. laser or electron beam
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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
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/40—Radiation means
- B22F12/41—Radiation means characterised by the type, e.g. laser or electron beam
- B22F12/43—Radiation means characterised by the type, e.g. laser or electron beam pulsed; frequency modulated
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- B22F2304/00—Physical aspects of the powder
- B22F2304/05—Submicron size particles
- B22F2304/052—Particle size below 1nm
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B22F2304/00—Physical aspects of the powder
- B22F2304/05—Submicron size particles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
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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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- 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
- 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
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
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- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
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Abstract
Description
本発明は、粒子の溶融又は焼結を使用して積層物体を生成するための付加製造方法、及びさらなる一態様では積層物体を生成するための付加製造装置に関する。
国際公開第98/24574号は、物体の積層付加製造プロセスを提供する、融点における選択的レーザー焼結を開示している。レーザーを使用して、選択部分の金属粒子の層を溶融し、それによって、積層物体を形成する。
本発明は、粒子のレーザー溶融又は焼結に基づいた付加製造を改良する方法を提供しようとするものである。
本発明を、添付の図面を参照するとともに、いくつかの例示的な実施形態を使用して以下により詳細に説明する。
三次元物体(積層)の付加製造のための既存の選択的レーザー溶融(SLM)/選択的レーザー焼結(SLS)プロセスでは、出発物は通常均一層の(金属)粒子の粉末であり、この金属粒子は選択的に合わせて溶融又は焼結される。既存のプロセスは、30μm程度の最小の層厚さを有し、良好な結果を得るためには保護環境(例えば、粉末表面上に不活性ガスを供給することによる)を必要とする。層の十分な均一性を維持しながらより薄い層を実現することは困難である。この場合、また、より厚い層を処理する場合、局所的な加熱のためにプロセス中に未処理粉末が飛び散る可能性がある。また、一般に、得られた処理済み層の表面は、依然としてかなり粗く(粒子の粒径及び溶融プロセスのため)、異方性である(局所的な溶融の結果、微細構造中に応力及び配向が生じたため)。また、溶融していない粉末が溶融プロセス中に物体内に封入され、後からそれを除去することができないので、プロセスは最終製品の形を考慮してかなり制限される。例えば、通常のSLM/SLSプロセスを使用して微細な溝を作製するのは困難である。さらに、クラスター状の粉末破片を除去し、物体の表面品質を向上させるために、製造された各物体には、例えば、サンドブラスチング、タンブリング、又はマニュアルサンジング/ポリッシングによる後処理が必要である。
Claims (15)
- 積層物体を生成するための付加製造方法であって、
スラリー(3)を、処理される層として塗布するステップであり、前記スラリー(3)が、最終的に前記物体を形成することになる液体及び粒子を含有する懸濁液であり、前記スラリー(3)が、10〜70体積%の粒子含有量を有する、ステップと、
前記スラリー(3)の新しい層の塗布前に粒子結合プロセスを実施するステップであり、前記粒子結合プロセスが単一ステッププロセスである、ステップと
を含む方法。 - 前記粒子結合プロセスが、(レーザー)溶融又は(レーザー)焼結プロセスである、請求項1に記載の方法。
- 前記粒子が、300μm未満、例えば5μm未満の直径を有する、請求項1又は2に記載の方法。
- 前記粒子結合プロセスの前に高密度化プロセスが行われる、請求項1〜3のいずれか一項に記載の方法。
- 前記粒子が、金属粒子、金属前駆体材料粒子、ポリマー粒子、ガラス粒子の群のうちの1種又は複数種である、請求項1〜4のいずれか一項に記載の方法。
- 前記スラリー(3)が、添加物をさらに含む、請求項1〜5のいずれか一項に記載の方法。
- 前記処理される層が、300μm未満の厚さを有する、請求項1〜6のいずれか一項に記載の方法。
- 少なくとも前記粒子結合プロセス中、前記処理される層の上に保護ガスの流れを供給するステップをさらに含む、請求項1〜7のいずれか一項に記載の方法。
- 前記粒子結合プロセスが、所定パターンで施される、請求項1〜8のいずれか一項に記載の方法。
- 前記粒子結合プロセスの後に洗浄プロセスを行う、請求項1〜9のいずれか一項に記載の方法。
- 前記物体の新しい層に異なるスラリー組成物を使用するステップをさらに含む、請求項1〜10のいずれか一項に記載の方法。
- 積層物体を生成するための付加製造装置であって、
所定の厚さ(d1)のスラリー(3)の層を提供するためのスラリーアプリケーター(5)であり、前記スラリー(3)が、最終的に前記物体を形成することになる液体及び粒子を含有する懸濁液であり、前記スラリー(3)が、10〜70体積%の粒子含有量を有する、スラリーアプリケーター(5)と;
前記スラリー(3)の新しい層の塗布前に単一ステップの粒子結合プロセスを実施するように前記スラリー(3)の層に作用する粒子結合ユニット(7)と
を備える、付加製造装置。 - 前記粒子結合ユニット(7)の前に前記スラリー(3)の層に作用する高密度化ユニット(6)をさらに備える、請求項12に記載の付加製造装置。
- 前記粒子結合ユニット(7)が、レーザー装置である、請求項12又は13に記載の付加製造装置。
- 前記スラリーアプリケーター(5)、前記任意選択の高密度化ユニット(6)、及び前記粒子結合ユニット(7)に連結され、請求項1〜11のいずれか一項に記載の方法を実施するように配列される制御ユニット(8)をさらに備える、請求項12、13、又は14に記載の付加製造装置。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL2015381A NL2015381B1 (en) | 2015-09-01 | 2015-09-01 | Additive manufacturing method and apparatus. |
NL2015381 | 2015-09-01 | ||
PCT/EP2016/070603 WO2017037165A1 (en) | 2015-09-01 | 2016-09-01 | Additive manufacturing method and apparatus |
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JP2018532613A true JP2018532613A (ja) | 2018-11-08 |
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JP2018510108A Pending JP2018532613A (ja) | 2015-09-01 | 2016-09-01 | 付加製造方法及び装置 |
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US (1) | US20180250739A1 (ja) |
EP (1) | EP3344409A1 (ja) |
JP (1) | JP2018532613A (ja) |
KR (1) | KR20180048665A (ja) |
CN (1) | CN108348998B (ja) |
NL (1) | NL2015381B1 (ja) |
WO (1) | WO2017037165A1 (ja) |
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JP6488216B2 (ja) * | 2015-09-11 | 2019-03-20 | 日本碍子株式会社 | ハニカム構造体の製造方法、ハニカム構造体の製造装置及びハニカム構造体 |
NL2018890B1 (en) | 2017-05-10 | 2018-11-15 | Admatec Europe B V | Additive manufacturing of metal objects |
CN110799287A (zh) * | 2017-06-28 | 2020-02-14 | 惠普发展公司,有限责任合伙企业 | 三维打印 |
EP3479927A1 (de) | 2017-11-07 | 2019-05-08 | Heraeus Additive Manufacturing GmbH | Verwendung einer wässrigen zusammensetzung für die additive fertigung eines metallischen formkörpers |
EP3479929A1 (de) | 2017-11-07 | 2019-05-08 | Heraeus Additive Manufacturing GmbH | Verwendung einer wässrigen zusammensetzung für die additive fertigung eines metallischen formkörpers |
EP3479930A1 (de) | 2017-11-07 | 2019-05-08 | Heraeus Additive Manufacturing GmbH | Verwendung einer wässrigen zusammensetzung für die additive fertigung eines metallischen formkörpers |
EP3479928A1 (de) | 2017-11-07 | 2019-05-08 | Heraeus Additive Manufacturing GmbH | Verwendung einer wässrigen zusammensetzung für die additive fertigung von metallischen formkörpern |
US10520923B2 (en) | 2018-05-22 | 2019-12-31 | Mantle Inc. | Method and system for automated toolpath generation |
TWI682822B (zh) * | 2018-07-16 | 2020-01-21 | 國立中正大學 | 摩擦攪拌積層製造方法 |
US11167375B2 (en) | 2018-08-10 | 2021-11-09 | The Research Foundation For The State University Of New York | Additive manufacturing processes and additively manufactured products |
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CN109550959A (zh) * | 2019-01-31 | 2019-04-02 | 广州中国科学院工业技术研究院 | 一种金属零件增材制造方法及装置 |
CN110523977B (zh) * | 2019-03-12 | 2021-04-13 | 清华大学 | 液浮粉末床增材制造设备和方法 |
CN110976857B (zh) * | 2019-12-26 | 2022-08-05 | 西安铂力特增材技术股份有限公司 | 一种用于间接增材制造的脱脂方法 |
US11718023B2 (en) | 2020-05-18 | 2023-08-08 | Qatar Foundation For Education, Science And Community Development | 3D printing based on self-assembled molecular building blocks for materials design and bio-applications |
CN113739616B (zh) * | 2021-09-27 | 2024-04-19 | 无锡市志成生化工程装备有限公司 | 一种兼具亲水性和疏水性的梯度多孔结构换热管及其制造工艺 |
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CN103042205A (zh) * | 2012-12-18 | 2013-04-17 | 株洲弘通硬质合金有限公司 | 一种空心难熔金属及合金喷涂粉末的制备方法 |
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2015
- 2015-09-01 NL NL2015381A patent/NL2015381B1/en active
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2016
- 2016-09-01 EP EP16759775.6A patent/EP3344409A1/en active Pending
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- 2016-09-01 US US15/756,088 patent/US20180250739A1/en not_active Abandoned
- 2016-09-01 JP JP2018510108A patent/JP2018532613A/ja active Pending
- 2016-09-01 KR KR1020187006059A patent/KR20180048665A/ko not_active Application Discontinuation
- 2016-09-01 CN CN201680055657.5A patent/CN108348998B/zh active Active
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US20180250739A1 (en) | 2018-09-06 |
CN108348998A (zh) | 2018-07-31 |
EP3344409A1 (en) | 2018-07-11 |
KR20180048665A (ko) | 2018-05-10 |
NL2015381B1 (en) | 2017-03-20 |
CN108348998B (zh) | 2021-06-25 |
WO2017037165A1 (en) | 2017-03-09 |
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