JP7348912B2 - 付加製造にて物体を形成する方法、および物体を形成する装置 - Google Patents
付加製造にて物体を形成する方法、および物体を形成する装置 Download PDFInfo
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Description
Claims (14)
- 構築材の複数の層を連続的に提供することと、前記層のそれぞれの1または複数のピクセルをそのプリント中に選択的に硬化させることと、を含む、付加製造にて物体を形成する方法であって、
支持面または先行する層上に第1構築材の第1層を提供することと、
層のデータに従って、前記第1層中の1または複数のピクセルを所定の線量の放射に選択的に曝露することと、を含む方法において、
前記層のデータに基づいて、後続の第2層の着目領域の輪郭と一致する、前記第1層中の1または複数の輪郭ピクセルを識別することであって、前記第2層の前記着目領域は、前記第1構築材とは異なる第2構築材を使用して提供される、識別することと、
前記選択的な曝露の前に、前記識別された輪郭ピクセルに対する放射線量を増加させることと、
を特徴とし、
前記選択的に曝露するステップは、前記増加させた放射線量を用いて前記1または複数の輪郭ピクセルを曝露することを含む、方法。 - 前記第1層上に構築材の第2層を提供することであって、前記第2層は前記着目領域を含み、前記着目領域は前記層のデータに従って前記第2構築材をプリントすることで提供される、提供することと、
前記第2層中の1または複数のピクセルを硬化させることと、を更に含む、
請求項1に記載の方法。 - 前記着目領域の前記輪郭は、
表面積の少なくとも50%超が前記着目領域の境界の外側に位置するピクセル、もしくは、それらと一続きでありかつ前記着目領域の外側に位置するピクセルを含む、外側輪郭、または、
表面積の少なくとも50%超が前記着目領域の境界の内側に位置するピクセル、もしくは、それらと一続きでありかつ前記着目領域の内側に位置するピクセルを含む、内側輪郭、のうちの少なくとも一方である、
請求項1または2に記載の方法。 - 前記1または複数の輪郭ピクセルに加え、前記第2層中の前記着目領域と一致する前記第1層中の1または複数の填充ピクセルを識別することをさらに含み、
前記選択的に曝露するステップは、前記増加させた放射線量を使用して前記1または複数の填充ピクセルを曝露することをさらに含む、
請求項1~3のいずれか一項に記載の方法。 - 前記第1層中の前記1または複数のピクセルのうちの少なくとも1つが前記所定の線量の放射に選択的に曝露された後、前記少なくとも1つのピクセルの場所における酸素阻害層の厚さを測定するステップをさらに含む、
請求項1から4のいずれか一項に記載の方法。 - 前記酸素阻害層の前記厚さの前記測定は、前記少なくとも1つのピクセルの前記場所に放射ビームを照射して、前記放射ビームの反射した部分がもたらす干渉パターンを分析することで行われる、
請求項5に記載の方法。 - 前記酸素阻害層の前記厚さの前記測定は、前記少なくとも1つのピクセルの前記場所における前記第1層の表面の高さ位置を測定し、前記測定された高さ位置を基準高さ位置と比較することで行われる、
請求項5に記載の方法。 - 付加製造にて物体を形成する装置であって、
前記形成される物体を支持する支持面を提供するキャリアと、
前記キャリア上に構築材の複数の層を連続的に提供する構成とされたアプリケータと、
前記層それぞれの1または複数のピクセルをその適用中に選択的に硬化させる放射源と、を備え、
前記アプリケータは、前記支持面上または形成中の前記物体の先行する層上に、第1構築材の第1層を提供する構成とされ、
前記放射源は、層のデータに従って、前記第1層中の1または複数のピクセルを所定の線量の放射に選択的に曝露する構成とされた装置において、
前記装置がさらに、
前記層のデータに基づいて後続の第2層の着目領域の輪郭と一致する前記第1層中の1または複数の輪郭ピクセルを識別する構成とされた制御装置を備え、前記第2層の前記着目領域は、前記第1構築材とは異なる第2構築材を用いて提供され、
前記制御装置は、前記選択的な曝露の前に、前記識別された輪郭ピクセルに対する増加させた放射線量を決定する構成とされ、
前記放射源は、前記選択的な曝露中に、前記増加させた放射線量を用いて前記1または複数の輪郭ピクセルを曝露する構成とされた、ことを特徴とする装置。 - 前記アプリケータは、前記着目領域を含む構築材の第2層を前記第1層上に提供し、および前記層のデータに従って前記第2構築材を適用することによって前記着目領域を提供する構成とされた、
請求項8に記載の装置。 - 前記1または複数の輪郭ピクセルを識別するために、前記制御装置は、前記着目領域の前記輪郭を、
表面積の少なくとも50%超が前記着目領域の境界の外側に位置するピクセル、もしくは、それらと一続きでありかつ前記着目領域の外側に位置するピクセルを含む、外側輪郭、または、
表面積の少なくとも50%超が前記着目領域の境界の内側に位置するピクセル、もしくは、それらと一続きでありかつ前記着目領域の内側に位置するピクセルを含む、内側輪郭、のうちの少なくとも一方として判定する構成とされた、
請求項8または9に記載の装置。 - 前記制御装置は、前記1または複数の輪郭ピクセルに加え、前記第2層中の前記着目領域と一致する前記第1層中の1または複数の填充ピクセルを識別する構成とされ、
前記放射源は、前記増加させた放射線量を用いて前記1または複数の填充ピクセルを選択的に曝露する構成とされた、
請求項8~10のいずれか一項に記載の装置。 - 前記第1層の前記1または複数のピクセルのうちの少なくとも1つの場所における酸素阻害層の厚さを、前記少なくとも1つのピクセルが前記所定の線量の放射に曝露された後で測定するセンサをさらに備える、
請求項8~11のいずれか一項に記載の装置。 - 前記酸素阻害層の前記厚さを測定する前記センサは、検知ビームを前記少なくとも1つのピクセルの前記場所に照射する検知放射源と、前記検知ビームの1または複数の反射した部分を受ける受信部と、を含み、
前記制御装置は、前記検知ビームの前記反射した部分にて提供される干渉パターンを分析する構成とされた、
請求項12に記載の装置。 - 前記酸素阻害層の前記厚さを測定する前記センサは、前記少なくとも1つのピクセルの前記場所における前記第1層の表面の高さ位置を測定するセンサを含み、
前記制御装置は、前記酸素阻害層の前記厚さを判定するために、前記測定された高さ位置を基準高さ位置と比較する構成とされた、
請求項12に記載の装置。
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EP18166297.4A EP3552806A1 (en) | 2018-04-09 | 2018-04-09 | Method of apparatus for forming an object by means of additive manufacturing |
PCT/NL2019/050209 WO2019199162A1 (en) | 2018-04-09 | 2019-04-09 | Method of apparatus for forming an object by means of additive manufacturing |
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CN105945280A (zh) | 2016-05-05 | 2016-09-21 | 清华大学 | 一种多材料非均质零件的增材制造方法 |
JP2017075362A (ja) | 2015-10-15 | 2017-04-20 | セイコーエプソン株式会社 | 三次元造形物の製造方法及び三次元造形物の製造装置 |
US20170189965A1 (en) | 2016-01-05 | 2017-07-06 | Applied Materials, Inc. | Materials and formulations for three-dimensional printing |
JP2017185804A (ja) | 2016-03-31 | 2017-10-12 | オックスフォード パフォーマンス マテリアルズ インコーポレイテッド | 空隙を有する物体を選択的レーザ焼結する装置及び方法 |
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EP3552806A1 (en) | 2019-10-16 |
JP2021519707A (ja) | 2021-08-12 |
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EP3774285B1 (en) | 2023-06-07 |
US11453171B2 (en) | 2022-09-27 |
CN111936298B (zh) | 2023-06-09 |
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