JP2011502820A - 粉末を用いた層状構造の三次元物体を製造する方法および製造装置 - Google Patents
粉末を用いた層状構造の三次元物体を製造する方法および製造装置 Download PDFInfo
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Abstract
Description
Claims (21)
- 製造する物体3の断面に対応する位置にある粉末(3a)に電磁放射線7aを照射することにより、粉末(3a)を層状に選択的に固化して三次元物体を製造する方法であって、
粉末として樹脂粉末を用い、固化されなかった粉末(3a’)を前記物体の製造後に水または水蒸気によって処理し、その後、再び新しい物体の積層に用いることを特徴とする三次元物体を製造する方法。 - 粉末としてポリアミドを用いることを特徴とする請求項1記載の三次元物体を製造する方法。
- 前記処理は加熱条件下で行うことを特徴とする請求項1または2のいずれか一項に記載の三次元物体を製造する方法。
- 前記粉末を前記処理後に乾燥することを特徴とする請求項1〜3のいずれか一項に記載の三次元物体を製造する方法。
- 前記処理を行う時間は、前記粉末の世代に応じて選択されることを特徴とする請求項1〜4のいずれか一項に記載の三次元物体を製造する方法。
- 粉末としてポリアミド12を用い、前記処理を130〜170℃、好ましくは130℃〜150℃の熱蒸気下で行うことを特徴とする請求項1〜5のいずれか一項に記載の三次元物体を製造する方法。
- 前記粉末は凝固防止添加物、フィラー、顔料、耐熱材料等の添加物を有することを特徴とする請求項1〜6のいずれか一項に記載の三次元物体を製造する方法。
- 前記電磁放射線として、レーザー照射線7aを用いることを特徴とする請求項1〜7のいずれか一項に記載の三次元物体を製造する方法。
- 製造する物体3の断面に対応する位置にある粉末(3a)に電磁放射線7aを照射することにより、粉末(3a)を層状に選択的に固化して三次元物体を製造する装置であって、
電磁放射を行う放射源7と、
物体3が積層される台座2を有する積層空間10と、
粉末の層を台座または既に固化された層に供給するディスペンサー5と、
を有し、
前記物体の製造後に、固化されなかった粉末を水または水蒸気で処理する装置12を有することを特徴とする三次元物体を製造する装置。 - 前記装置12は、分離容器を有することを特徴とする請求項9記載の三次元物体を製造する装置。
- 前記粉末を収納する収納容器6を有し、前記収納容器は前記装置12内、もしくは前記装置12に設けられていることを特徴とする請求項9または10のいずれか一項に記載の三次元物体を製造する装置。
- 前記積層空間から前記収納容器に前記固化されなかった粉末を戻す返送手段を有することを特徴とする請求項11記載の三次元物体を製造する装置。
- 前記処理を行った粉末を乾燥する乾燥手段が設けられていることを特徴とする請求項9〜12のいずれか一項に記載の三次元物体を製造する装置。
- 以下の工程を有することを特徴とする粉末を処理する方法。
製造する物体3の断面に対応する位置にある粉末に電磁放射線7aを照射することにより、粉末を層状に選択的に固化して三次元物体を製造する際に、固化されなかった粉末(3a’)を用い、物体の製造後に、
前記固化されなかった粉末(3a’)を水または水蒸気で処理し、
前記処理を行った粉末を新しい物体を製造するために供給する。 - 前記粉末はポリアミドを含むことを特徴とする請求項14記載の粉末を処理する方法。
- 製造する物体3の断面に対応する位置にある粉末状のポリアミド(3a)に電磁放射線7aを照射することにより、粉末状のポリアミド(3a)を層状に選択的に固化して三次元物体を製造する方法で用いられる粉末状のポリアミドであって、
固化されなかった粉末状のポリアミド(3a’)を前記物体の製造後に水または水蒸気によって処理し、その後、乾燥することによって得られたことを特徴とする粉末状のポリアミド。 - 前記処理前の前記固化されなかった粉末状のポリアミドは、モル質量がMn(数平均)で約20000g/molより大きく、好ましくは21000〜100000g/mol、さらに好ましくは22000〜50000、最も好ましくは25000〜35000であり、かつMw(重量平均)で約40000g/molより大きく、好ましくは45000〜200000、より好ましくは50000〜150000、最も好ましくは60000〜100000であることを特徴とする請求項16記載の粉末状のポリアミド。
- 前記固化されなかった粉末状のポリアミドは、カルボキシル末端基が、アミノ末端基に対して少なくとも4:1、最大で200:1過剰であることを特徴とする請求項16または17のいずれか一項に記載の粉末状のポリアミド。
- 前記処理後の前記固化されなかった粉末状のポリアミドは、前記処理前の前記固化されなかった粉末状のポリアミドよりも少なくとも5%、好ましくは10−70%、より好ましくは20−50%モル質量が小さいことを特徴とする請求項16〜18のいずれか一項に記載の粉末状のポリアミド。
- 前記処理後の前記固化されなかったポリアミドは、モル質量がMn(数平均)で約40000g/mol未満、好ましくは15000〜30000g/mol、さらに好ましくは17000〜25000、最も好ましくは19000〜21000であり、かつMw(重量平均)で約100000g/molより未満、好ましくは35000〜70000、より好ましくは37000〜50000、最も好ましくは38000〜45000であることを特徴とする請求項16〜19のいずれか一項に記載の粉末状のポリアミド。
- 前記処理後の前記固化されなかった粉末状のポリアミドは、カルボキシル末端基が、アミノ末端基に対して約2:1〜3:1過剰であることを特徴とする請求項19または20のいずれか一項に記載の粉末状のポリアミド。
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PCT/EP2009/003133 WO2009141047A1 (de) | 2008-05-21 | 2009-04-30 | Verfahren und vorrichtung zum schichtweisen herstellen eines dreidimensionalen objekts aus einem pulverförmigen material |
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JP2015021016A (ja) * | 2013-07-16 | 2015-02-02 | 群栄化学工業株式会社 | 積層造形用材料中の球状骨材の再生方法、再生積層造形用材料、及び積層造形物の製造方法 |
JP2016052777A (ja) * | 2014-09-03 | 2016-04-14 | エスエルエム ソルーションズ グループ アーゲー | 乾燥手段を有するワークピースの製造装置 |
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CN102256257B (zh) | 2010-05-17 | 2016-02-24 | 中兴通讯股份有限公司 | 基于感知技术的切换方法及系统 |
FR2976000B1 (fr) | 2011-05-31 | 2014-12-26 | Arkema France | Procede pour augmenter la recyclabilite d'un polyamide utilise en frittage |
KR101572009B1 (ko) * | 2012-09-05 | 2015-11-25 | 아프레시아 파마슈티칼스 컴퍼니 | 3차원 인쇄 시스템 및 장비 어셈블리 |
EP2727709A1 (en) | 2012-10-31 | 2014-05-07 | Nederlandse Organisatie voor toegepast -natuurwetenschappelijk onderzoek TNO | Method and apparatus for making tangible products by layerwise manufacturing |
US10987868B2 (en) | 2012-10-31 | 2021-04-27 | Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno | Production line for making tangible products by layerwise manufacturing |
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CN101842222A (zh) | 2010-09-22 |
RU2010119923A (ru) | 2011-11-27 |
JP4964990B2 (ja) | 2012-07-04 |
EP2173537A1 (de) | 2010-04-14 |
US20090291308A1 (en) | 2009-11-26 |
EP2173537B1 (de) | 2011-07-13 |
ATE516140T1 (de) | 2011-07-15 |
CN101842222B (zh) | 2017-03-01 |
DE102008024465A1 (de) | 2009-11-26 |
US10981324B2 (en) | 2021-04-20 |
WO2009141047A1 (de) | 2009-11-26 |
US20180236711A1 (en) | 2018-08-23 |
US9975297B2 (en) | 2018-05-22 |
RU2449891C2 (ru) | 2012-05-10 |
BRPI0905079A2 (pt) | 2015-06-30 |
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