JP6898036B2 - 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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- JP6898036B2 JP6898036B2 JP2019538132A JP2019538132A JP6898036B2 JP 6898036 B2 JP6898036 B2 JP 6898036B2 JP 2019538132 A JP2019538132 A JP 2019538132A JP 2019538132 A JP2019538132 A JP 2019538132A JP 6898036 B2 JP6898036 B2 JP 6898036B2
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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。
層流ゾーンを有するガス流デバイス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り、装置の操作の間の前記レーザ照射方向づけデバイスが、レーザビームを方向づけて前記層流ゾーンを通過させるものである、前記構築ユニット、及び
前記加工物表面に実質的に平行な少なくとも2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ように適合させた位置決めシステム、
を含む付加製造装置。
(a)加工物表面の構築エリアにわたって構築ユニットを移動させることであって、前記構築ユニットが、前記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ものである、ことと、
(b)前記加工物表面の前記構築エリアの少なくとも部分に、前記層流ゾーンを通るレーザを照射して、第1融合層を形成することと、
(c)少なくとも工程(a)〜(b)を繰り返して前記物体を形成することと、
を含む方法。
Claims (15)
- レーザビームを加工物表面に方向づけるためのレーザ照射方向づけデバイス(401)、
層流ゾーン(404)を有するガス流デバイス(403)を含む構築ユニット(302)であって、前記ガス流デバイス(403)が、加工物表面の2インチ以内の、前記加工物表面に平行な層状のガス流を提供するように適合させたものであり、装置の操作の間の前記レーザ照射方向づけデバイス(401)が、レーザビームを方向づけて前記層流ゾーンを通過させるものである、前記構築ユニット(302)、及び
前記加工物表面に平行な少なくとも2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ように適合させた位置決めシステム(301)、
を含む付加製造装置(300)。 - 前記構築ユニットが、前記層流ゾーン(404)の上に低減酸素ガスゾーン(419)を含む、請求項1に記載の装置。
- 前記レーザ照射方向づけデバイス(401)が前記構築ユニット(302)の中にある、請求項1又は請求項2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(302)に延びる、請求項1から請求項3のいずれか一項に記載の装置。
- 前記位置決めシステムが、前記加工物表面に平行な前記2次元における前記構築ユニット(302)の回転を可能にする、請求項1から請求項4のいずれか一項に記載の装置。
- 前記構築ユニットが、さらに、粉末送出ユニット(406)及び再塗工機アーム(413)を含む、請求項1から請求項5のいずれか一項に記載の装置。
- 粉末から物体を作製する方法であって、
(a)加工物表面の構築エリアにわたって構築ユニット(302)を移動させることであって、前記構築ユニット(302)が、前記構築エリアにわたる層流ゾーン(404)を有するガス流デバイス(403)を含み、前記ガス流デバイス(403)が、前記加工物表面の2インチ以内の、前記加工物表面に平行な層状のガス流を提供するものである、ことと、
(b)前記加工物表面の前記構築エリアの少なくとも部分に、前記層流ゾーン(404)を通るレーザを照射して、第1融合層を形成することと、
(c)少なくとも工程(a)〜(b)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、前記加工物表面から垂直に離れて前記構築ユニット(302)を移動させる工程(d)を含む、請求項7に記載の方法。
- 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8に記載の方法。
- 前記構築ユニット(302)が、前記層流ゾーン(404)の上に低減酸素ガスゾーン(419)を含む、請求項8又は請求項9に記載の方法。
- レーザビームを加工物表面に方向づけるためのレーザ照射方向づけデバイス(401)が前記構築ユニット(302)の中にある、請求項8から請求項10のいずれか一項に記載の方法。
- 前記加工物表面に平行な2次元における前記構築ユニット(302)の回転が可能とされている、請求項8から請求項11のいずれか一項に記載の方法。
- 前記構築ユニット(302)が、さらに、粉末送出ユニット(406)及び再塗工機アーム(413)を含む、請求項8から請求項12のいずれか一項に記載の方法。
- さらに、第2構築ユニット(802B)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8から請求項13のいずれか一項に記載の方法。
- さらに、第2構築ユニット(1101)を用いて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8から請求項14のいずれか一項に記載の方法。
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