JP6092332B2 - 改良されたガス回路を備えるワークピースの製造装置 - Google Patents
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Description
Claims (13)
- 三次元ワークピースの製造装置(10)であって、
キャリア(16)と該キャリア(16)上に原材料粉末を塗布する粉末塗布手段(14)を収容し、ガス流入口(30)とガス流出口(32)が設けられたプロセスチャンバー(12)と、
累積的な積層造形法によって前記原材料粉末からなるワークピースを製造するために、前記キャリア(16)上に塗布された前記原材料粉末を電磁放射線又は粒子放射線で選択的に照射する照射手段(18)と、
前記プロセスチャンバー(12)のガス流出口(32)を前記プロセスチャンバー(12)のガス流入口(30)に接続する循環路(36)と該循環路(36)の中に配置される濾過システム(40)を備えるガス回路(34)とを有し、
遠心分離システム(42)が、前記濾過システム(40)の上流の前記循環路(36)の中に配置され、
さらに、前記装置(10)が、前記循環路(36)の中に配置される絞り手段と、
前記循環路(36)内で発生する圧力差を前記絞り手段の両端間で検出するように適合された差圧検出手段(52)とを有し、
前記差圧検出手段(52)が、前記絞り手段の下流の前記循環路(36)の中に配置される第1の圧力センサー(54)と、前記絞り手段の上流の前記循環路(36)の中に配置される第2の圧力センサー(56)を備えることを特徴とする装置。 - 前記濾過システム(40)が、
前記循環路(36)の中に相互に平行に配置される、少なくとも2つの粗い微粒子用の濾過器(48a、48b)、及び、
前記粗い微粒子用の濾過器(48a、48b)の下流の前記循環路(36)の中に配置される細かい微粒子用の濾過器(50)の少なくともいずれか一方を備えることを特徴とする請求項1に記載の装置。 - 前記遠心分離システム(42)が、
粗い微粒子用の遠心分離機(44)、及び、
前記粗い微粒子用の遠心分離機(44)の下流の前記循環路(36)の中に配置される細かい微粒子用の遠心分離機(46)の少なくともいずれか一方を備えることを特徴とする請求項1又は請求項2に記載の装置。 - 前記細かい微粒子用の遠心分離機(46)が、多重遠心分離機の形式で設計されることを特徴とする請求項3に記載の装置。
- さらに、前記差圧検出手段(52)によって検出される圧力差に依存して、前記プロセスチャンバー(12)のガス流出口(32)から前記循環路(36)を通して排出される微粒子の不純物を含むガスを搬送するように作動される搬送手段(38)を制御するように適合された制御ユニット(58)を有することを特徴とする請求項1から請求項4のいずれか一項に記載の装置。
- 前記制御ユニット(58)が、前記差圧検出手段(52)によって検出される圧力差を所定の設定圧力差と比較し、前記検出される圧力差が前記所定の設定圧力差に収斂するように、前記搬送手段(38)を制御するように適合されることを特徴とする請求項5に記載の装置。
- 前記絞り手段が、前記循環路(36)の中に配置される前記遠心分離システム(42)によって構成されることを特徴とする請求項1に記載の装置。
- 三次元ワークピースの製造装置(10)の操業方法であって、
ガス流入口(30)とガス流出口(32)が設けられたプロセスチャンバー(12)内に収容されたキャリア(16)上に原材料粉末を塗布する工程と、
累積的な積層造形法によって前記原材料粉末からなるワークピースを製造するために、前記キャリア(16)上に塗布された前記原材料粉末を電磁放射線又は粒子放射線で選択的に照射する工程と、
プロセスチャンバー(12)のガス流出口(32)から排出される微粒子の不純物を含むガスを、前記プロセスチャンバー(12)のガス流出口(32)をプロセスチャンバー(12)のガス流入口(30)へ接続する循環路(36)の中に配置される濾過システム(40)を通るように導く工程とを有し、
前記微粒子の不純物を含むガスが、前記濾過システム(40)の上流の前記循環路(36)の中に配置される遠心分離システム(42)を通るように導き、
さらに、前記循環路(36)の中に配置される絞り手段の両端間で、前記循環路(36)内に発生する圧力差を検出する工程を有し、
前記圧力差を、前記絞り手段の下流の前記循環路(36)の中に配置される第1の圧力センサー(54)と、前記絞り手段の上流の前記循環路(36)の中に配置される第2の圧力センサー(56)とを備える差圧検出手段(52)によって検出することを特徴とする方法。 - 前記微粒子の不純物を含むガスを、
前記循環路(36)の中に相互に平行に配置される、少なくとも2つの粗い微粒子用の濾過器(48a、48b)、及び、
前記粗い微粒子用の濾過器(48a、48b)の下流の前記循環路(36)の中に配置される細かい微粒子用の濾過器(50)の少なくともいずれか一方を通るように導くことを特徴とする請求項8に記載の方法。 - 前記微粒子の不純物を含むガスを、
粗い微粒子用の遠心分離機(44)、及び、
前記粗い微粒子用の遠心分離機(44)の下流の前記循環路(36)の中に配置される細かい微粒子用の遠心分離機(46)の少なくともいずれか一方を通るように導き、
前記細かい微粒子用の遠心分離機(46)は多重遠心分離機の形式で設計されることを特徴とする請求項8又は請求項9に記載の方法。 - さらに、前記検出される圧力差に依存して、前記プロセスチャンバー(12)のガス流出口(32)から前記循環路(36)を通して排出される微粒子の不純物を含むガスを搬送するように作動される搬送手段(38)を制御する工程を有することを特徴とする請求項8に記載の方法。
- 前記検出される圧力差を所定の設定圧力差と比較し、前記搬送手段(38)を、前記検出される圧力差が前記所定の設定圧力差に収斂するように制御することを特徴とする請求項11に記載の方法。
- 前記絞り手段を、前記循環路(36)の中に配置される前記遠心分離システム(42)によって構成することを特徴とする請求項11又は請求項12に記載の方法。
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EP14183424.2A EP2992942B1 (en) | 2014-09-03 | 2014-09-03 | Apparatus for producing 3d work pieces by additive manufacturing with an improved recycling gas circuit and related method using the same |
EP14183424.2 | 2014-09-03 |
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JP2016052778A JP2016052778A (ja) | 2016-04-14 |
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US20160059310A1 (en) | 2016-03-03 |
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CN105382257B (zh) | 2019-02-19 |
JP2016052778A (ja) | 2016-04-14 |
EP2992942B1 (en) | 2019-06-05 |
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