JP7253428B2 - 熱可塑性セルネットワークで強化された複合材料 - Google Patents
熱可塑性セルネットワークで強化された複合材料 Download PDFInfo
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- JP7253428B2 JP7253428B2 JP2019072142A JP2019072142A JP7253428B2 JP 7253428 B2 JP7253428 B2 JP 7253428B2 JP 2019072142 A JP2019072142 A JP 2019072142A JP 2019072142 A JP2019072142 A JP 2019072142A JP 7253428 B2 JP7253428 B2 JP 7253428B2
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- B32B2307/732—Dimensional properties
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Description
・Zピン:積層補強材に使用されるが、挿入過程において微細構造に深刻な欠陥が生じるため(また、これにより、複合材料の面内特性が低下するため)現在は使用されていない。
・ステッチ:乾燥ファイバプリフォームの強化に使用されるが、挿入過程において微細構造に深刻な欠陥が生じるため(また、これにより、複合材料の面内特性が低下するため)現在は使用されていない。
・典型的には液体成形法において使用される三次元(3D)織/3D編/3D編組プリフォーム:しかしながら、製造過程において3Dプリフォーム内にファイバの不整合が生じるため、これらのプリフォームは特定の幾何形状に限定されており、一体型航空機の接合部分に適用するのは困難である。
<技術説明>
<例示的な構造>
<例示的な製造方法>
<a.ネットワーク形成>
(1)アンカー(316)をベースレイヤ(408)に形成するために、最初に、ノズル(402)が、第1所定距離(例えば、3mm)だけx-y面(412)を移動している間、ノズル(402)からベースレイヤ(408)に材料を付着させる。一つ以上の例においては、アンカー(316)は、ピラー(308)のための基板、土台、及び/又は、起点であって、ピラー(308)の材料(314)を供給するためのもの、及び/又は、ピラー(308)が形成された後にピラー(308)又は壁(308c)を接合させる部分を供給するためのものである。
(2)ノズル(402)は、アンカー(316)に対して、第2所定距離(例えば、0.5mm)だけz方向(414)にプリンティングを行う。z方向におけるノズル(402)のプリンティングの距離が短いのは、ピラー(308)又は壁(308c)が崩れ落ちることにより太い基部(318)が形成されるのを防止又は抑制するためである。
<b.ピラーの形態>
<C.予備成形及び後処理の技術>
<適用例>
<利点及び改善点>
<処理環境>
<付記>
複数のピラー(308)によって接続された複数のレイヤ(306a,306b)を含むネットワーク(304)と、を含み、
前記複数のピラー(308)の各々は、前記複数のレイヤのうちの1つ(306a)から引出されて、前記複数のファイバトウ(302)間のそれぞれ異なる1つの空隙(310)を通り、前記複数のレイヤのうちの1つ(306a)と、前記複数のレイヤのうちの他の1つ(306b)とを接続し、
前記ネットワーク(304)は、前記複合材製品(300)における亀裂の伝播を低減する物理的バリアを形成する、複合材製品(300,300b,300c)。
前記熱可塑性は、ポリアミド、ポリエーテルイミド、ポリエーテルケトン、ポリエーテルエーテルケトン、ポリエーテルケトンケトン、ポリイミド、又は、ポリフェニルスルホンを含み、
前記複数のファイバトウ(302)は、ガラス繊維、ケブラー、及び、炭素から選択された少なくとも1つの材料(314)を含む、付記1に記載の複合材製品(300,300b,300c)。
前記界面領域(1008)は、複合材製品(300,300b,300c)を含み、前記複合材製品は、
複数のファイバトウ(302)と、
前記複数のファイバトウ(302)間で引出される材料(314)を含むネットワーク(304)とを含み、前記ネットワークは、前記複合材製品における亀裂の伝播を低減する物理的バリアを形成しており、
前記界面領域(1008)は、前記スキン(1004)の一部、前記補強材(1006)の一部、及び/又は、前記スキン(1004)と前記補強材(1006)との間のレイヤを含む、一体型航空機構造体。
<結語>
Claims (19)
- 複数のファイバトウ(302)と、
複数のピラー(308)によって接続された複数のレイヤ(306a,306b)を含むネットワーク(304)と、を含む複合材製品であって、
前記複数のピラー(308)の各々は、前記複数のレイヤのうちの1つ(306a)から引出されて、前記複数のファイバトウ(302)間のそれぞれ異なる1つの空隙(310)を通り、前記複数のレイヤのうちの1つ(306a)と、前記複数のレイヤのうちの他の1つ(306b)とを接続し、
前記ネットワーク(304)は、前記複合材製品における亀裂の伝播を低減する物理的バリアを形成する、複合材製品(300,300b,300c)。 - 複数のプライ(312)を含み、
前記複数のプライ(312)の各々は、前記複数のファイバトウ(302)と、複数の異なる前記空隙(310)とを含み、
前記複数のプライ(312)のうちの少なくとも1つは、前記複数のピラー(308)によって接続された前記複数のレイヤのうちの2つ(306a,306b)の間にあり、
前記複数のレイヤのうちの前記1つのレイヤ(306a)から引出された前記複数のピラー(308)は、前記2つのレイヤ(306a,306b)の間の前記少なくとも1つのプライ(312)における複数の異なる空隙(310)を通る、請求項1に記載の複合材製品(300,300b,300c)。 - 前記複数のファイバトウ(340a,340b,340c,340d)は、複数のプライ(336a,336b,336c,336d)、又は、レイヤ(338a,338b,338c,338d)に設けられており、前記複数の空隙(310)は、前記複数のレイヤ(338a,338b,338c,338d)、又は、プライ(336a,336b,336c,336d)を貫通しており、前記複数の空隙(342)は、複数の異なるレイヤ(338a,338b,338c,338d)、又は、プライ(336a,336b,336c,336d)におけるファイバトウ(340a,340b,340c,340d)によって境界付けされている、請求項1又は2に記載の複合材製品(300b)。
- 前記複数のレイヤ(306a,306b)、又は、前記複数のピラー(308)、又は、前記複数のレイヤ(306a,306b)及び前記複数のピラー(308)は、付加製造に用いられる材料(314)を含む、請求項1~3のいずれか1つに記載の複合材製品(300,300b,300c)。
- 前記複数のファイバトウ(302)の各々は、少なくとも2mmの直径を有するとともに、少なくとも1000本のファイバを含み、
前記複数のプライ(312)の各々は、2~10mmの範囲の厚み(T3)を有し、
前記複数のピラー(308)は、平均直径(Daverage)を有し、前記複数のレイヤ(
306a,306b)の各々は、2~5mmの範囲の厚みを有し、
前記複数のピラー(308)の各々は、1~3mmの範囲の長さ(L)を有し、
前記複合材製品(300)は、1mm~50mmの範囲の総厚み(T)を有する、請求項2に記載の複合材製品(300,300b,300c)。 - 前記複数のプライ(312)に含まれる前記複数のファイバトウ(302)は、編組布、織布、ノンクリンプ布、又は、一方向テープを形成するように配置されている、請求項2に記載の複合材製品(300,300b,300c)。
- 前記複数のプライ(312)間の隙間を埋めるとともに、前記複数のピラー(308)
、前記複数のレイヤ(306a,306b)、又は、前記複数のレイヤ(306a,306b)及び前記複数のピラー(308)に接合されている樹脂をさらに含む、請求項2に記載の複合材製品(300,300b,300c)。 - 前記複数のレイヤ、前記複数のピラー(308)、又は、前記複数のピラー(308)及び前記複数のレイヤ(306a,306b)は、樹脂との機械的結合を促進する凹凸面を有する、請求項7に記載の複合材製品(300,300b,300c)。
- 前記複数のピラー(308)は、基部(318)においてより太く、当該基部において、前記ピラーが、前記複数のレイヤのうちの前記1つ(306a)から引出されており、
前記複数のピラー(308)は、前記複数のレイヤのうちの前記1つ(306a)から前記複数のレイヤのうちの前記他の1つ(306b)まで傾斜している、請求項1~8のいずれか1つに記載の複合材製品(300,300b,300c)。 - 請求項1~9のいずれか1つに記載の前記複合材製品(300)を含むジョイント(1002)。
- (a)最初にx-y面(412)にて移動し、その後z方向(414)に移動するように、供給口(450)とベースレイヤ(408)とを相対移動させながら、前記供給口から前記ベースレイヤ(408)に対して材料(314)を付着させて、前記ベースレイヤ(408)にアンカー(316)を形成し、
(b)前記供給口(450)から前記材料(314)を供給することなく、前記供給口と前記ベースレイヤ(408)とを相対移動させることによって、前記アンカー(316)の一部を引いてピラー(308)を形成し、
(c)前記供給口(450)が前記ベースレイヤ(408)における次の位置(702)の上方に配置されるように前記供給口(450)と前記ベースレイヤ(408)とを相対移動させ、
(d)ステップ(a)~(c)を繰り返して、前記ベースレイヤ(408)に複数のピラー(308)を形成し、
(e)複数のファイバトウ(302)を含むプライ(312)を供給して、前記複数のピラー(308)の各々が、前記複数のファイバトウ(302)間のそれぞれ異なる空隙(310)を通過するようにし、
(f)前記複数のピラー(308)にレイヤ(306a)を接続するにあたり、前記複数のピラー(308)が、前記レイヤ(306a)に接続する前に、前記ファイバトウ(302)間を通過するようにし、
これにより、前記複数のピラー(308)と、前記レイヤと、前記プライ(312)とを含む複合材製品(300)が製造される、複合材製品(300,300b,300c)の製造方法。 - さらに、ステップ(a)~(f)を繰り返すことを含み、その際の次のステップ(a)において、前記レイヤ(306a)を前記ベースレイヤ(408)として用いることを含む、請求項11に記載の方法。
- 前記ベースレイヤ(408)は、3次元プリンティングを用いて付着された前記材料(314)のマット(800)を含む、請求項11又は12に記載の方法。
- 前記複数のピラー(308)は、3次元プリンティングを用いて製造され、前記複数のファイバトウ(302)及び前記レイヤ(306a)は、前記3次元プリンティングとは異なる1つ以上の方法を用いて製造される、請求項11~13のいずれか1つに記載の方法。
- マットを構成する前記複数のピラー(308)及び前記レイヤ(306a)は、溶融付着法を用いて製造される、請求項11~14のいずれか1つに記載の方法。
- 前記供給に際して、前記複数のピラー(308)を形成した後に前記プライ(312)を配置する、請求項11~15のいずれか1つに記載の方法。
- 前記供給に際して、前記複数のピラー(308)を形成する前に前記プライ(312)を配置することにより、前記複数のアンカー(316)の各々の一部が、前記複数のファイバトウ(302)間で引出されて、前記複数のピラー(308)を形成するようにする、請求項11~16のいずれか1つに記載の方法。
- 前記複数のファイバトウ(302)間で前記複数のアンカー(316)の各々の一部を引くのに伴って、前記複数のピラー(308)の各々を、前記複数のファイバトウ(302)のうちの少なくとも1つに接合する、請求項11~17のいずれか1つに記載の方法。
- さらに、処理後ステップを実行することを含み、当該ステップにおいて、前記複数のファイバトウ(302)及び前記複数のピラー(308)を付着した後、前記複数のピラー(308)の各々を、前記複数のファイバトウ(302)のうちの少なくとも1つに接合する、請求項11~18のいずれか1つに記載の方法。
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JP2016074204A (ja) | 2014-09-23 | 2016-05-12 | ザ・ボーイング・カンパニーThe Boeing Company | 複合ラミネート上へのパターンのプリント |
JP2016104920A (ja) | 2014-09-30 | 2016-06-09 | ザ・ボーイング・カンパニーThe Boeing Company | 複合構造体のためのフィラメントネットワーク |
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US11020935B2 (en) | 2021-06-01 |
CA3040169A1 (en) | 2019-10-19 |
US10562262B2 (en) | 2020-02-18 |
AU2019202652B2 (en) | 2024-01-11 |
KR102678493B1 (ko) | 2024-06-25 |
US20190322074A1 (en) | 2019-10-24 |
EP3564020A1 (en) | 2019-11-06 |
RU2019106702A3 (ja) | 2022-03-29 |
KR20190122143A (ko) | 2019-10-29 |
CN110386241B (zh) | 2024-08-06 |
US20200147925A1 (en) | 2020-05-14 |
AU2019202652A1 (en) | 2019-11-07 |
CN110386241A (zh) | 2019-10-29 |
JP2019206172A (ja) | 2019-12-05 |
CA3040169C (en) | 2023-09-26 |
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RU2019106702A (ru) | 2020-09-11 |
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