JP6843967B2 - 局所熱サイクルを用いて3d部品を印刷する方法 - Google Patents
局所熱サイクルを用いて3d部品を印刷する方法 Download PDFInfo
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Description
特段の記載が無い限り、本明細書で使用される以下の用語は、以下で規定される意味を有する。
Claims (20)
- 付加製造システムを用いて部品を印刷する方法であって、
熱可塑性プラスチック材料によって形成された前記部品の第1の部分を供給することと、
次の工具経路に沿った前記部品の前記第1の部分を、前記熱可塑性プラスチック材料固有の接合温度以上であって該材料の劣化温度未満の温度に予熱することと、
前記部品の表面に沿った前記温度が、材料固有の接合温度以上であって前記熱可塑性プラスチック材料の前記劣化温度未満の温度に維持されている間に、前記予熱された工具経路に沿って熱可塑性プラスチック材料を前記部品の前記第1の部分上に押し出し、加えた前記熱可塑性プラスチック材料が、前記部品の前記第1の部分を形成した前記熱可塑性プラスチック材料と同じか又は異なり、それによって、前記部品の前記第1の部分に溶着された予熱された工具経路に沿って新たに押し出された層を形成することと、
前記予熱された工具経路に沿って新たに押し出された層を能動的に冷却して、熱的に安定した温度に達するように、前記予熱するステップ及び前記押し出したステップによって与えられた熱を除去することと、
を含み、
前記予熱することと、前記押し出すことと、前記冷却することとは、10秒未満で実行される、方法。 - 前記予熱することと、前記押し出すことと、前記冷却することとは、5秒未満で実行される、請求項1に記載の方法。
- 前記予熱することと、前記押し出すことと、前記冷却することとは、1秒未満で実行される、請求項1に記載の方法。
- 前記部品の前記第1の部分を形成する前記熱可塑性プラスチック材料がアモルファスポリマーであるとき、前記材料固有の接合温度は、前記アモルファスポリマーのガラス転移温度よりも高く、前記熱的に安定した温度は、前記アモルファスポリマーの前記ガラス転移温度よりも低い、請求項1に記載の方法。
- 前記部品の前記第1の部分を形成する前記熱可塑性プラスチック材料が半結晶ポリマーであるとき、前記材料固有の接合温度は、前記半結晶ポリマーの融解温度よりも高く、前記熱的に安定した温度は、前記半結晶ポリマーの前記融解温度よりも低い、請求項1に記載の方法。
- 前記工具経路は平面工具経路である、請求項1に記載の方法。
- 前記工具経路は3D工具経路である、請求項1に記載の方法。
- 予熱することは、ガスジェット加熱器を用いて行われる、請求項1に記載の方法。
- 予熱することは、レーザー光源加熱器を用いて行われる、請求項1に記載の方法。
- 予熱することは、ハイブリッドガスジェットレーザー予熱器を用いて行われる、請求項1に記載の方法。
- 前記能動的に冷却することは、冷却流体を利用して行われる、請求項1に記載の方法。
- 前記予熱された工具経路に沿って新たに押し出された層及び予熱された工具経路は、前記熱的に安定した温度まで冷却される、請求項1に記載の方法。
- 前記予熱された工具経路に沿って前記新たに押し出された層を形成する前記熱可塑性プラスチック材料は、前記部品の前記第1の部分を形成する前記熱可塑性プラスチック材料とは異なる、請求項1に記載の方法。
- 前記方法は、ネット部品又はニアネット部品をビルドすることを含む、請求項1に記載の方法。
- 前記方法は、オーブン外環境において実行される、請求項1に記載の方法。
- 前記方法は、加熱された環境において実行される、請求項1に記載の方法。
- 前記3D工具経路は螺旋状の3D工具経路であり、
前記部品の前記第1の部分は前記螺旋状の3D工具経路で印刷された中空部材を含み、
前記新たに押し出されたロードは、
前記螺旋状の3D工具経路に略直交する方向において、前記中空部材の上に前記部品の第2の部分を印刷するための接触エッジを形成する、請求項7に記載の方法。 - 前記方法は、ロボットアームに取り付けられた工具によって実行される、請求項7に記載の方法。
- 前記ロボットアームに対して少なくとも2つの自由度で可動なビルドプラットフォームを用いて前記部品の向きを定めて、部品幾何形状に基づいて重力の効果を打ち消すように、ビルドされている前記部品を位置決めすることを更に含む、請求項18に記載の方法。
- 前記ビルドプラットフォームの向きを定めることは、前記ビルドプラットフォームを中心軸の回りに回転させることと、前記ビルドプラットフォームを平面内で実質的に垂直から実質的に水平に傾動させることとを含む、請求項19に記載の方法。
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