JP6730186B2 - 粉体材料の選択的固化処理によりオブジェクトを構築するための装置及び方法 - Google Patents
粉体材料の選択的固化処理によりオブジェクトを構築するための装置及び方法 Download PDFInfo
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Description
Claims (35)
- 構築粒子を含む粉体材料の層ごとの溶融によってオブジェクトを構築するための付加製造装置であって、該装置は、構築プラットフォームを含む構築チャンバ、前記構築プラットフォームを横切って、複数の層に前記粉体材料を堆積させるための粉体ディスペンサ、各層の粉体材料を選択的に溶融させるための高エネルギービームを走査する走査機、及び、構築中、前記構築チャンバから前記粉体ディスペンサに粉体を再循環させるための再循環ループを含み、前記再循環ループは、より小さい粒子から前記構築粒子を分離し、前記構築粒子を前記粉体ディスペンサに送るためのサイクロン分離器を含み、前記再循環ループは、前記構築チャンバと気体連通状態にあり、前記構築チャンバ及び前記再循環ループは、共通の不活性ガス雰囲気を共有することを特徴とする付加製造装置。
- 請求項1の付加製造装置であって、前記再循環ループは、前記粉体材料中の前記構築粒子の粒径分布を制御するために配置されることを特徴とする付加製造装置。
- 請求項2の付加製造装置であって、前記再循環ループは、前記粉体材料中の微小構築粒子の割合を制御し、前記微小構築粒子は、粒径上限の四分の一以下の粒径を有する粒子であることを特徴とする付加製造装置。
- 請求項2または3の付加製造装置であって、前記再循環ループは、前記粉体材料中の微小構築粒子の割合を制御し、前記微小構築粒子は、粒径上限の五分の一以下の粒径を有する粒子であることを特徴とする付加製造装置。
- 請求項2〜4のいずれかの付加製造装置であって、微小構築粒子は、10マイクロメートル以下のサイズを有する粒子であることを特徴とする付加製造装置。
- 請求項5の付加製造装置であって、前記微小構築粒子は、5マイクロメートル以下のサイズを有する粒子であることを特徴とする付加製造装置。
- 請求項6の付加製造装置であって、前記微小構築粒子は、ナノ粒子であることを特徴とする付加製造装置。
- 請求項3〜7のいずれかの付加製造装置であって、前記再循環ループは、前記微小構築粒子を追加又は除去することで、前記粒径分布を変更するように配置されることを特徴とする付加製造装置。
- 請求項3または4の付加製造装置であって、前記再循環ループは、大きい構築粒子を追加又は除去することで、前記粒径分布を変更するように配置されており、前記大きい構築粒子は、前記微小構築粒子よりも大きいが、前記粒径上限未満のサイズを有する粒子であることを特徴とする付加製造装置。
- 請求項2〜9のいずれかの付加製造装置であって、前記再循環ループは、前記粉体材料から特定のサイズの構築粒子の部分のみを除去するように配置されることを特徴とする付加製造装置。
- 請求項10の付加製造装置であって、前記粉体材料から除去される、前記特定のサイズの構築粒子の部分は、可変であることを特徴とする付加製造装置。
- 請求項10または11の付加製造装置であって、前記再循環ループは、前記粉体材料から前記特定のサイズの構築粒子を除去するための構築粒子フィルタ、及び、前記特定のサイズの構築粒子の部分が、前記構築粒子フィルタをバイパスし、前記粉体材料中に残留することを可能にするためのバイパスを含むことを特徴とする付加製造装置。
- 請求項1の付加製造装置であって、前記付加製造装置は、構築のために特定された粒径上限を超えるサイズを有する粒子を篩い分ける閾値フィルタを含むことを特徴とする付加製造装置。
- 請求項12の付加製造装置であって、前記再循環ループは、前記バイパスを通過する前記構築粒子の割合を変更するように配置されることを特徴とする付加製造装置。
- 請求項10〜12、14のいずれかの付加製造装置であって、粒径が、10マイクロメートル以下のサイズを有する粒子であることを特徴とする付加製造装置。
- 請求項10〜14のいずれかの付加製造装置であって、前記サイクロン分離器は、前記粉体材料から特定のサイズの構築粒子の部分を除去することを特徴とする付加製造装置。
- 請求項1〜16のいずれかの付加製造装置であって、前記再循環ループは、供給源から材料の粒子を送給するための送達装置、及び、前記粉体材料への前記供給源からの粒子の追加を制御するためのミキサーを含むことを特徴とする付加製造装置。
- 請求項12〜17のいずれかの付加製造装置であって、請求項3に従属する場合、前記再循環ループは、前記粉体材料中の微小又は大きい構築粒子の割合が決定され得る、前記粉体材料の特性を検出するためのセンサー、前記センサーからの信号に応答して制御される、フィルタ及び/又はミキサーを含むことを特徴とする付加製造装置。
- 請求項1〜17のいずれかの付加製造装置であって、前記再循環ループは、前記再循環ループから前記粉体ディスペンサに送給される前記粉体材料の粒径分布を制御するように配置されることを特徴とする付加製造装置。
- 請求項19の付加製造装置であって、前記再循環ループのセンサーは、前記粉体材料の特性を検出し、前記粒径分布を変更するための装置は、前記粉体材料から、特定サイズの構築粒子の部分を除去し、又は、特定サイズの構築粒子を加えて、前記粉体ディスペンサへ送給される前記粉体材料の粒径分布を変化させることを特徴とする付加製造装置。
- 請求項1〜20のいずれかの付加製造装置であって、前記粉体材料から、粒径上限を超えるサイズを有する粒子を除去するための閾値フィルタを含むことを特徴とする付加製造装置。
- 請求項21の付加製造装置であって、前記閾値フィルタは、前記再循環ループ内の粉体から粒径上限を超えるサイズを有する粒子を除去するために、前記再循環ループ内に設けられることを特徴とする付加製造装置。
- 請求項1〜22のいずれかの付加製造装置であって、前記再循環ループは、前記オブジェクトの構築中、粉体の特性を制御するように構成されることを特徴とする付加製造装置。
- 請求項1〜23のいずれかの付加製造装置であって、前記再循環ループは、連続する構築間における、前記粉体材料中の前記構築粒子の粒径分布を制御するように配置されることを特徴とする付加製造装置。
- 請求項1〜24のいずれかの付加製造装置であって、前記粉体材料の特性は、含水量であることを特徴とする付加製造装置。
- 請求項1〜25のいずれかの付加製造装置であって、前記粉体材料の特性は、前記構築粒子の形態であることを特徴とする付加製造装置。
- 請求項26の付加製造装置であって、前記再循環ループは、前記粉体材料中の異なる形状の構築粒子の分布を制御するように配置されることを特徴とする付加製造装置。
- 請求項1〜27のいずれかの付加製造装置であって、前記粉体材料の特性は、化学組成であることを特徴とする付加製造装置。
- 構築粒子を含む粉体材料の層毎の溶融によって、オブジェクトを構築する方法であって、該方法は、構築チャンバ内に前記構築粒子を含む粉体材料を堆積させること、構築プラットフォームを横切って堆積された前記構築粒子を含む粉体材料を層に広げること、高エネルギービームを用いて、選択的に、それぞれの層の前記構築粒子を含む粉体材料を溶融させること、構築中に、前記構築チャンバから粉体ディスペンサに再循環ループを介して粉体を再循環させること、及び、サイクロン分離器を用いて、より小さい粒子から前記構築粒子を分離し、前記構築粒子を前記粉体ディスペンサに送ることによって、前記構築のために特定された粒径上限以下である前記粉体材料中の前記構築粒子によって与えられる前記構築粒子を含む粉体材料の特性を制御することを含み、前記再循環ループは、前記構築チャンバと気体連通状態にあり、前記構築チャンバ及び前記再循環ループは、共通の不活性ガス雰囲気を共有することを特徴とする方法。
- 請求項29の方法であって、前記特性は、前記粉体材料中の前記構築粒子の粒径分布であることを特徴とする方法。
- 請求項29〜30のいずれかの方法であって、連続的な構築を実行することを含み、構築の合間に、前記粉体材料の溶融温度に到達するのに必要なエネルギー量に影響を及ぼすように、粒子が、前記粉体材料に追加され、又は、前記粉体材料から除去されることを特徴とする方法。
- 請求項31のいずれかの方法であって、前記粉体材料に追加され、又は、前記粉体材料から除去される粒子は、微小構築粒子であり、該微小構築粒子は、粒径上限の四分の一以下の粒径を有する粒子であることを特徴とする方法。
- 請求項32の方法であって、前記微小構築粒子は、10マイクロメートル以下のサイズを有する粒子であることを特徴とする方法。
- 請求項33の方法であって、前記微小構築粒子は、5マイクロメートル以下のサイズを有する粒子であることを特徴とする方法。
- 請求項34の方法であって、前記微小構築粒子は、ナノ粒子であることを特徴とする方法。
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EP2450177B1 (en) * | 2006-05-26 | 2013-05-08 | 3D Systems, Inc. | Apparatus and methods for handling materials in a 3-d printer |
DE102006055326A1 (de) * | 2006-11-23 | 2008-05-29 | Voxeljet Technology Gmbh | Vorrichtung und Verfahren zur Förderung von überschüssigem Partikelmaterial beim Aufbau von Modellen |
DE102008024465A1 (de) * | 2008-05-21 | 2009-11-26 | Eos Gmbh Electro Optical Systems | Verfahren und Vorrichtung zum schichtweisen Herstellen eines dreidimensionalen Objekts aus einem pulverförmigen Material |
JP5094668B2 (ja) * | 2008-09-30 | 2012-12-12 | 株式会社日清製粉グループ本社 | Ni−W系合金微粒子の製造方法並びにNi−W合金微粒子の製造方法 |
WO2010083997A2 (de) * | 2009-01-23 | 2010-07-29 | Eos Gmbh Electro Optical Systems | Verfahren und system zur wiederverwendung von restpulver aus einer anlage zur generativen fertigung von dreidimensionalen objekten |
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DE102013206542A1 (de) * | 2013-04-12 | 2014-10-16 | Matthias Fockele | Pulveraufbereitungsvorrichtung |
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2013
- 2013-08-22 GB GBGB1315036.2A patent/GB201315036D0/en not_active Ceased
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2014
- 2014-08-21 JP JP2016535532A patent/JP6730186B2/ja not_active Expired - Fee Related
- 2014-08-21 CN CN201480057692.1A patent/CN105658356B/zh active Active
- 2014-08-21 EP EP14758414.8A patent/EP3036056B1/en active Active
- 2014-08-21 US US14/910,399 patent/US20160193696A1/en not_active Abandoned
- 2014-08-21 CN CN201910226546.1A patent/CN110052608A/zh active Pending
- 2014-08-21 ES ES14758414T patent/ES2972397T3/es active Active
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CN110052608A (zh) | 2019-07-26 |
JP2016532781A (ja) | 2016-10-20 |
CN105658356A (zh) | 2016-06-08 |
CN105658356B (zh) | 2019-04-12 |
WO2015025171A2 (en) | 2015-02-26 |
EP3036056A2 (en) | 2016-06-29 |
EP3036056B1 (en) | 2023-12-20 |
WO2015025171A3 (en) | 2015-05-07 |
GB201315036D0 (en) | 2013-10-02 |
US20160193696A1 (en) | 2016-07-07 |
ES2972397T3 (es) | 2024-06-12 |
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