JP2020506824A - 移動式走査エリアを使用する付加製造 - Google Patents
移動式走査エリアを使用する付加製造 Download PDFInfo
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Abstract
Description
本開示は、概して、より大規模なフォーマットにおいて、例えば直接溶融レーザ製造(「DMLM」)によって、付加製造(「AM」)プロセスを行うのに適合した方法及びシステムに関する。
以下の同時に出願された関連出願が参照されるが、それらの全体は参照により本明細書に組み込まれる。
本開示は、概して、より大規模なフォーマットにおいて、例えば直接溶融レーザ製造(「DMLM」)によって、付加製造(「AM」)プロセスを行うのに適合した方法及びシステムに関する。
以下の同時に出願された関連出願が参照されるが、それらの全体は参照により本明細書に組み込まれる。
少なくとも3次元における前記構築ユニットの独立した移動を提供することが可能な位置決めシステム
を含む、粉末から物体を作製する装置。
(a)構築ユニットを移動させて第1構築エリアの少なくとも第1部分にわたって粉末の第1層を堆積させることであって、前記構築ユニットが、粉末送出ユニットと、再塗工機アームと、レーザ放出方向づけデバイスと、加工物表面の構築エリアにわたる層流ゾーンを有するガス流デバイスと、を含み、前記ガス流デバイスが、前記加工物表面の2インチ以内の、前記加工物表面に実質的に平行な実質的に層状のガス流を提供する、ことと、
(b)前記第1構築エリアの中における粉末の前記第1層の少なくとも一部に照射して第1融合層を形成することと、
(c)粉末の前記第1層に対して実質的に垂直な方向に上方へ前記構築ユニットを移動させることと、
(d)少なくとも工程(a)〜(c)を繰り返して前記物体を形成することと、
を含む方法。
Claims (20)
- 粉末送出ユニットと、再塗工機アームと、レーザ放出方向づけデバイスと、層流ゾーンを有するガス流デバイスとを含む構築ユニットであって、前記ガス流デバイスが、加工物表面の2インチ以内の、前記加工物表面に実質的に平行な実質的に層状のガス流を提供するように適合させたものである、前記構築ユニット、及び
少なくとも3次元における前記構築ユニットの独立した移動を提供することが可能な位置決めシステム
を含む、粉末から物体を作製する装置。 - 前記構築ユニット及び前記位置決めシステムを囲む格納ゾーンをさらに含む請求項1に記載の装置。
- 前記構築ユニットが少なくとも部分的に囲まれて、前記加工物表面の構築エリアの周辺に低酸素環境が形成される、請求項1に記載の装置。
- 前記レーザ放出方向づけデバイスが、構築エリアの中における垂直線に対して15°未満の最大角度を提供するように、前記構築エリアよりも上の高さにおける前記構築ユニットの中で位置決めされる、請求項1に記載の装置。
- 光ファイバケーブルがレーザから前記構築ユニットに延びる、請求項1に記載の装置。
- 前記位置決めシステムが、さらに、前記加工物表面に実質的に平行な2次元における前記構築ユニットの回転を可能にする、請求項1に記載の装置。
- 前記レーザ放出方向づけデバイスが、前記構築ユニットの中における前記レーザ放出方向づけデバイスの移動を可能にするレーザ位置決めユニットを有する、請求項1に記載の装置。
- 前記レーザ放出方向づけデバイスがx−y検流計及びテレセントリックレンズを含む、請求項1に記載の装置。
- 物体を作製する方法であって、
(a)構築ユニットを移動させて第1構築エリアの少なくとも第1部分にわたって粉末の第1層を堆積させることであって、前記構築ユニットが、粉末送出ユニットと、再塗工機アームと、レーザ放出方向づけデバイスと、加工物表面の構築エリアにわたる層流ゾーンを有するガス流デバイスと、を含み、前記ガス流デバイスが、前記加工物表面の2インチ以内の、前記加工物表面に実質的に平行な実質的に層状のガス流を提供する、ことと、
(b)前記第1構築エリアの中における粉末の前記第1層の少なくとも一部に照射して第1融合層を形成することと、
(c)粉末の前記第1層に対して実質的に垂直な方向に上方へ前記構築ユニットを移動させることと、
(d)少なくとも工程(a)〜(c)を繰り返して前記物体を形成することと、
を含む方法。 - さらに、工程(d)の後で工程(a)及び(b)を繰り返すことを含む、請求項11に記載の方法。
- 前記レーザ放出方向づけデバイスが、前記構築エリアの中における垂直線に対して15°未満の最大角度を提供するように、前記構築エリアよりも上の高さにおける前記構築ユニットの中で位置決めされる、請求項11に記載の方法。
- 前記層流ゾーンが、前記構築ユニットの下の領域内の前記加工物表面の周辺の低酸素環境を提供する、請求項11に記載の方法。
- 前記構築ユニットが、前記層流ゾーンの上に低減酸素ガスゾーンを含む、請求項14に記載の方法。
- さらに、少なくとも前記構築ユニット及び前記位置決めシステムを囲む格納ゾーンを含む、請求項15に記載の方法。
- 前記レーザ放出方向づけデバイスが前記構築ユニットの中にある、請求項11に記載の方法。
- 前記位置決めシステムが、前記加工物表面に実質的に平行な2次元における前記構築ユニットの回転を可能にする、請求項11に記載の方法。
- 前記構築ユニットが、さらに、粉末送出ユニット及び再塗工機アームを含む、請求項11に記載の方法。
- 構築ユニットを90°回転させ、工程(a)における移動の方向に対して垂直な方向に移動させる、請求項18に記載の方法。
- さらに、第2構築ユニットを用いて、前記加工物表面上に第2物体の少なくとも部分を構築することを含む、請求項11に記載の方法。
- さらに、第2構築ユニットを用いて、前記物体の少なくとも部分を囲む構築エンベロープの少なくとも部分を構築することを含む、請求項11に記載の方法。
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US20180221954A1 (en) | 2018-08-09 |
US9956612B1 (en) | 2018-05-01 |
JP6845335B2 (ja) | 2021-03-17 |
CN110191792A (zh) | 2019-08-30 |
WO2018132283A1 (en) | 2018-07-19 |
CN110191792B (zh) | 2022-04-29 |
EP3568283A4 (en) | 2020-06-03 |
US10799953B2 (en) | 2020-10-13 |
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