JP6643289B2 - 多孔質構造およびその製造方法 - Google Patents
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Description
A'=γA B'=γB
504'=γ504 506'=ξ506
ただし、γ≠ξ、およびγ、ξは、>1、<1、または=1であり得る。
12 ストラッド
14 孔
A 長さ
A' 長さ
B 厚さ
B' 厚さ
200 ストラッド
202 ノード
204 ノード
206 本体
206' 本体
208 ローカル座標系またはノード座標系
210 機械座標系
212 矢印
214 厚さ
216 厚さ
218 矢印
500 構造
502 ストラッド
504 厚さ
504' 厚さ
506 長さ
506' 長さ
512 本体
508 ノード
508' ノード
510 ノード
510' ノード
514 ローカル座標系またはノード座標系
516 機械座標系
520 矢印
522 ローカル座標系またはノード座標系
524 矢印
526 矢印
Claims (20)
- 多孔質構造を機械で製作する方法であって、
a. 前記機械によって製作しようとする多孔質構造のモデルを作成する作成ステップであって、前記多孔質構造のストラッドを定義するステップを含み、前記ストラッドが、第1のノード、第2のノード、および前記第1のノードと前記第2のノードの間の本体を含む、前記作成ステップと、
b. 前記ストラッドにローカル座標系を割り当てるステップであって、前記ローカル座標系が、前記機械の構築面を定義する機械座標系とは異なる、ステップと、
c. 前記構築面に概ね垂直な方向において、前記ストラッドの寸法を修正して前記機械の方向不一致を修正する修正ステップであって、前記修正ステップが、前記第1のノード及び第2のノードの位置へのいかなる変更にも影響を与えない、前記修正ステップと、
d. 溶融可能な材料をエネルギー源にさらすことによって、修正された前記ストラッドを有する別のモデルに従って前記多孔質構造を前記機械によって製作するステップと
を含む、方法。 - 前記寸法は、厚さと長さとからなる群から選択される、請求項1に記載の方法。
- 前記修正ステップが、
前記ストラッドの3次元体積を、前記第1のノードと前記第2のノードが前記構築面に位置するように、前記機械座標系内の前記構築面に投射するステップと、
スケーリングされた3次元体積を生成するために、前記構築面に投射された前記ストラッドの前記寸法にスケーリング係数を適用するステップと、
前記構築面における前記スケーリングされた3次元体積を、前記ローカル座標系内の元の位置に投射して戻すステップとを含む、請求項1に記載の方法。 - 前記スケーリング係数は、少なくとも、前記方向不一致に関連する誤差であって、溶融可能な材料をエネルギー源にさらすために使用される機械において補償しようとする誤差に基づいている、請求項3に記載の方法。
- 多孔質構造を機械で製作する方法であって、
a. 前記機械によって製作しようとする多孔質構造のモデルを作成する作成ステップであって、前記多孔質構造のストラッドを定義するステップを含み、前記ストラッドが、第1のノード、第2のノード、および前記第1のノードと前記第2のノードの間の本体を含む、前記作成ステップと、
b. 前記ストラッドにローカル座標系を割り当てるステップであって、前記ローカル座標系が、前記機械の構築面を定義する機械座標系とは異なる、ステップと、
c. 前記構築面に概ね垂直な方向において、前記ストラッドの寸法を修正して前記機械の方向不一致を修正する修正ステップと、
d. 溶融可能な材料をエネルギー源にさらすことによって、修正された前記ストラッドを有する別のモデルに従って前記多孔質構造を前記機械によって製作するステップと
を含む、方法。 - 前記修正ステップが、
前記ストラッドの3次元体積を、前記第1のノードと前記第2のノードが前記構築面に位置するように、前記構築面に投射するステップと、
スケーリングされた3次元体積を生成するために、前記構築面に投射された前記ストラッドの前記寸法にスケーリング係数を適用するステップと、
前記構築面における前記スケーリングされた3次元体積を元の位置に投射して戻すステップとを含む、請求項5に記載の方法。 - 前記スケーリング係数は、少なくとも前記構築面に対する前記ストラッドの距離に基づいて、変化する、請求項6に記載の方法。
- 前記修正ステップが、少なくとも、前記方向不一致に関連する誤差であって、溶融可能な材料をエネルギー源にさらすのに使用される機械において補償しようとする誤差に基づいている、請求項5に記載の方法。
- 前記寸法が、厚さと長さとからなる群から選択される、請求項5に記載の方法。
- 前記修正ステップが、
前記ローカル座標系を前記構築面の前記機械座標系に変換するステップと、
前記ローカル座標系を前記機械座標系に変換するのに応じて、前記ストラッドの前記寸法にスケーリング係数を適用するステップと、
前記スケーリング係数を適用するのに応じて、前記構築面の前記機械座標系を前記ローカル座標系に変換するステップとを含む、請求項5に記載の方法。 - 前記スケーリング係数が、少なくとも前記構築面に対する前記ストラッドの距離に基づいて変化する、請求項10に記載の方法。
- 多孔質構造を機械で製作する方法であって、
a. 前記機械によって製作しようとする多孔質構造のモデルを作成する作成ステップであって、前記多孔質構造のストラッドを定義するステップを含み、前記ストラッドが、第1のノード、第2のノード、および前記第1のノードと前記第2のノードの間の本体を含む、前記作成ステップと、
b. 前記ストラッドにローカル座標系を割り当てるステップであって、前記ローカル座標系が、前記機械の構築面を定義する機械座標系とは異なる、ステップと、
c. 前記構築面内の前記ストラッドの寸法を修正して前記機械の方向不一致を修正する修正ステップであって、前記修正ステップが、少なくとも、溶融可能な材料をエネルギー源にさらすために使用される機械において補償しようとする誤差に基づいており、前記修正ステップが、
前記ローカル座標系を前記構築面の座標系に変換するステップと、
前記ストラッドの前記寸法にスケーリング係数を適用するステップと、
前記構築面の前記座標系を前記ローカル座標系に変換するステップとを含む、前記修正ステップと、
d. 前記溶融可能な材料を前記エネルギー源にさらすことによって、修正された前記ストラッドを有するモデルに従って前記多孔質構造を前記機械によって製作するステップと
を含む、方法。 - 前記寸法は、厚さと長さとからなる群から選択される、請求項12に記載の方法。
- 前記修正ステップは、前記第1のノードの位置を変更せず、且つ、前記第2のノードの位置を変更しない、請求項12に記載の方法。
- 前記機械の前記方向不一致を修正する前記修正ステップが、複数のストラッドの各ストラッドごとに、前記構築面に概ね垂直な方向において、前記ストラッドの寸法を修正することを含む、請求項1に記載の方法。
- 前記スケーリング係数は、前記エネルギー源に対する前記ストラッドの距離に基づいて前記エネルギー源から前記構築面へ変化する勾配関数に基づいている、請求項3に記載の方法。
- 前記構築面が前記機械の構築プラットフォームである、請求項1に記載の方法。
- 前記多孔質構造の前記モデルを作成する前記作成ステップが、前記機械によって製作しようとする理想的な多孔質構造の理想的なモデルを作成することを含み、
前記機械の前記方向不一致を修正する前記修正ステップが、スケーリングされたモデルを生成するために、前記理想的なモデルの複数のストラッドの各ストラッドごとに、前記構築面に概ね垂直な方向において、前記理想的なモデルの前記ストラッドの寸法を修正することを含み、
前記多孔質構造を製作する前記ステップが、前記スケーリングされたモデルに基づいて前記理想的な多孔質構造を製作することを含む、請求項1に記載の方法。 - 前記方向不一致を修正する前記修正ステップが、前記構築面に対する前記ストラッドの角度に依存する係数によって前記ストラッドの前記寸法を修正することを含む、請求項1に記載の方法。
- 前記係数は、前記ストラッドが前記構築面と概ね平行であるときの前記ストラッドの前記寸法のスケーリング係数に、前記構築面に対する前記ストラッドの前記角度のコサインを掛けた値に等しい、請求項19に記載の方法。
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