JP7621761B2 - 航空機の複合材窓フレームを製造するための方法およびツール - Google Patents
航空機の複合材窓フレームを製造するための方法およびツール Download PDFInfo
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- B64F5/00—Designing, manufacturing, assembling, cleaning, maintaining or repairing aircraft, not otherwise provided for; Handling, transporting, testing or inspecting aircraft components, not otherwise provided for
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Description
本特許出願は、2019年9月27日に出願されたイタリア特許出願第102019000017420号の優先権を主張し、イタリア特許出願第102019000017420号の全開示が、本明細書に援用される。
本発明は、航空機の複合材窓フレームを製造するための方法に関する。
-例えば、通常は炭素繊維などの繊維材料の層である2つ以上の材料層を積層することによって、乾燥複合材プリフォームを製作するステップと、
-フレームに所望の形状を与えるように、プリフォームを適切な形状の射出成形金型に配置するステップと、
-流動性の樹脂を圧力の下で金型へと注入し、プリフォームに樹脂自体を注入して、繊維を含浸するステップと、
-金型内で、高温高圧で、1つ以上の硬化サイクルを実行するステップと
を基本的に含む「樹脂トランスファ成形」(RTM)と呼ばれる技術が、この分野において知られている。
Claims (9)
- 航空機の複合材窓フレームを製造するための方法であって、
a)繊維を所定の向きにて熱硬化性樹脂マトリクスに分散させて含んでいる事前含浸材料で製作されたプリフォーム(4)を、金型(3)内に配置するステップと、
b)前記プリフォーム(4)の少なくとも1つの表面(7)と前記金型(3)の一部分(15)との間にギャップ(6)を定めるように前記金型(3)を閉じるステップと、
c)前記ギャップ(6)を埋め、前記プリフォーム(4)の前記表面(7)に完全にかぶさるように、前記閉じられた金型(3)へ前記金型(3)自体の入口開口部(11)を通って熱硬化性樹脂を注入するステップと、
d)前記熱硬化性樹脂の注入によって前記表面(7)に均一な静水圧を印加するステップと
を含む方法。 - 前記ステップd)は、
e)前記入口開口部(11)を除き、前記金型(3)を流体を漏らさない様相で密封するステップと、
f)前記入口開口部(11)を通る前記熱硬化性樹脂の注入を続けるステップと
を含む、請求項1に記載の方法。 - 前記金型(3)は、使用時に前記熱硬化性樹脂を前記金型(3)自体から出すための出口開口部(14)を備え、前記ステップc)は、前記出口開口部(14)を開いた状態で実行され、前記ステップd)は、前記出口開口部(14)を封じた状態で実行される、請求項2に記載の方法。
- 前記ステップc)およびd)において、前記熱硬化性樹脂は、前記プリフォーム(4)を含浸することなく前記表面(7)上へと注入される、請求項1~3のいずれか一項に記載の方法。
- 前記ステップc)において、前記熱硬化性樹脂は、真空を印加することによって前記金型(3)の内部に吸引される、請求項1~4のいずれか一項に記載の方法。
- 少なくとも前記プリフォーム(4)の硬化または共硬化サイクルを実行するために前記ステップd)において前記金型(3)内に存在する材料へと熱を供給するステップをさらに含む、請求項1~5のいずれか一項に記載の方法。
- 航空機の複合材窓フレームを、繊維を所定の向きにて熱硬化性樹脂マトリクスに分散させて含んでいる事前含浸材料で製作されたプリフォーム(4)から出発して製造するためのツール(1)であって、
前記プリフォーム(4)を収容するための金型(3)を備えており、前記金型(3)は、使用時に前記プリフォーム(4)の表面(7)と前記金型(3)の内面(8)との間にギャップ(6)が定められるように、前記プリフォーム(4)の周囲に閉じられるように構成され、
前記金型(3)は、前記プリフォーム(4)の前記表面(7)に完全にかぶさり、前記ギャップ(6)を埋め、前記プリフォーム(4)の前記表面(7)に均一な静水圧を印加するように、前記閉じられた金型(3)へと熱硬化性樹脂を注入することを可能にするように構成された少なくとも1つの入口チャネル(10)と、前記熱硬化性樹脂を前記金型(3)から出すことができるように構成された少なくとも1つの出口チャネル(13)とを備え、
前記金型(3)は、流れに関して前記入口チャネル(10)と前記出口チャネル(13)との間に介在し、前記ギャップ(6)から過剰な前記熱硬化性樹脂を受け取り、該熱硬化性樹脂を前記出口チャネル(13)へともたらすように構成された中間チャネル(16)をさらに備え、
前記中間チャネル(16)は、前記入口チャネル(10)から前記出口チャネル(13)への前記熱硬化性樹脂の流れの方向に関して前記出口チャネル(13)の上流に配置された収集部分(17)へと前記熱硬化性樹脂を運ぶように配置され、
前記中間チャネル(16)は、前記収集部分(17)に関して対称に配置されている、ツール(1)。 - 前記中間チャネル(16)は、前記収集部分(17)において互いに交わる十字またはアスタリスクを形成するように配置されている、請求項7に記載のツール。
- 前記金型(3)に対応して配置され、電流によって作動してジュール効果によって前記金型(3)を加熱するように構成された少なくとも1つの電気抵抗をさらに備える、請求項7または8に記載のツール。
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| CN113263664B (zh) * | 2021-07-20 | 2021-11-09 | 常州市新创智能科技有限公司 | 一种窗框固化成型模具及方法 |
| CN114872342B (zh) * | 2022-04-29 | 2023-01-31 | 常州市新创智能科技有限公司 | 一种内扣制件新型织物预成型方法及其制备模具 |
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| US12257788B2 (en) | 2022-10-31 | 2025-03-25 | GM Global Technology Operations LLC | Preform with variable fiber density, forming and molding tool and method for forming of composite materials |
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