JP7387709B2 - 固定構築プレートを備えた積層造形システム - Google Patents
固定構築プレートを備えた積層造形システム Download PDFInfo
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- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Description
[0001] 本出願は、その全体が参照により本明細書に組み込まれる、2018年10月5日に出願された「ADDITIVE MANUFACTURING SYSTEM WITH FIXED BUILD PLATE」と題する米国仮出願62/741,836号の35 U.S.C.§119(e)に基づく利益を主張する。
[0042] T4=T3+ΔT
[0043]
[0044]
[0045]
[0046] δCD=ΔH1D-ΔH1C
Claims (22)
- 積層造形システムの構築表面を水平にするためのシステムであって、
構築プレートと、
ベースと、
前記ベースと前記構築プレートとの間に延在し、前記構築プレートに加えられる荷重の少なくとも一部を支持するように構成された、支柱と、
前記支柱に取り付けられ、前記支柱の一部を加熱するように構成された、ヒータと、を備えるシステム。 - 前記構築プレートが据え付けられている固定プレートをさらに備え、前記支柱が前記固定プレートに取り付けられている、請求項1に記載のシステム。
- 前記ベースが、第1温度に維持されるように構成され、前記固定プレートが、前記第1温度よりも高い第2温度に維持されるように構成され、前記ヒータが、前記第2温度以下の第3温度に前記支柱の前記一部を加熱するように構成されている、請求項2に記載のシステム。
- 前記ベースが、前記ベースを前記第1温度に維持するための冷却パッド及び冷却チャネルから成る群から選択される少なくとも1つを備える、請求項3に記載のシステム。
- 前記固定プレートが、前記固定プレートを前記第2温度に維持するように構成された第2ヒータを備える、請求項3又は4に記載のシステム。
- 前記ヒータが、前記支柱の長さに沿った、前記ベースよりも前記構築プレートに近い位置に位置する、請求項1から5のいずれか一項に記載のシステム。
- 前記構築プレートを加熱するように構成された構築プレートヒータをさらに備える、請求項1から6のいずれか一項に記載のシステム。
- 前記支柱に取り付けられた前記ヒータ及び前記構築プレートが、独立して制御可能である、請求項1から7のいずれか一項に記載のシステム。
- 請求項1に記載の積層造形システムであって、
前記構築プレートの上の構築体積の周りに境界を規定するように、前記構築プレートに対して垂直方向に変位可能なシュラウドと、
前記構築体積の上面に沿って粉末層を堆積させるように構成された粉末堆積システムであって、前記粉末堆積システムが前記構築プレートに対して垂直方向に変位可能である、粉末堆積システムと、
1つ以上のレーザエネルギー源からのレーザエネルギーを前記構築体積へ向けて方向づけるように構成された光学系組立体であって、前記レーザエネルギーへの前記粉末層の暴露により、前記粉末層の少なくとも一部が溶融する、光学系組立体と、を備え、
前記支柱が2つ以上の支柱であり、各支柱が別々のヒータを備える、積層造形システム。 - 各ヒータに動作可能に結合されたコントローラをさらに備え、前記コントローラが、ヒータごとに温度設定点を独立して設定して、各支柱に沿った温度プロファイルを調整するように構成されている、請求項9に記載の積層造形システム。
- 前記コントローラに動作可能に結合された構築プレートヒータをさらに備え、前記コントローラが、前記構築プレートの温度設定点を設定するように構成されている、請求項10に記載の積層造形システム。
- 前記構築プレートの前記温度設定点が、前記支柱のヒータの少なくとも1つの温度設定点とは異なる、請求項11に記載の積層造形システム。
- 前記コントローラに動作可能に結合された構築プレートセンサをさらに備え、前記構築プレートセンサが、前記構築プレートの配向を判断するように構成されている、請求項10から12のいずれか一項に記載の積層造形システム。
- 前記構築プレートの前記配向が水平配向とは異なると前記構築プレートセンサが判断するのに応答して、前記コントローラが、各支柱に沿った前記温度プロファイルを調整して、各支柱の長さを調整するように構成されている、請求項13に記載の積層造形システム。
- 少なくとも1つの支柱が、前記コントローラに動作可能に結合された2つ以上の独立した調整可能なヒータを備える、請求項10から14のいずれか一項に記載の積層造形システム。
- 前記構築プレートが、前記構築プレートの下にある固定プレート上に据え付けられ、各支柱が、前記固定プレートに取り付けられている、請求項9から15のいずれか一項に記載の積層造形システム。
- 各支柱が、冷却プレート及び冷却チャネルから成る群から選択される少なくとも1つを備える前記積層造形システムのベースから延在する、請求項9から16のいずれか一項に記載の積層造形システム。
- 各支柱が、前記構築プレートを支持するように中間プレートから延在し、前記中間プレートと前記積層造形システムのベースとの間に延在する2本以上の二次支柱をさらに備える、請求項9から17のいずれか一項に記載の積層造形システム。
- 積層造形システムの構築プレートを水平にするための方法であって、
前記構築プレートの配向を制御するために、前記構築プレートを支持する支柱に沿った温度プロファイルを制御することを含み、
前記支柱に沿った前記温度プロファイルを制御することは、前記支柱に沿った前記温度プロファイルをヒータで制御することを含む、方法。 - 前記支柱が2つ以上の支柱であり、各支柱に沿った前記温度プロファイルを独立に調整することをさらに含む、請求項19に記載の方法。
- 各支柱に沿った前記温度プロファイルを調整することで、各支柱の長さを調整する、請求項19又は20に記載の方法。
- ベースを第1温度に維持し、固定プレートを第1温度よりも高い第2温度に維持し、前記第2温度以下の第3温度に前記支柱の一部を加熱することをさらに含む、請求項19から21のいずれか一項に記載の方法。
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