JP2012522937A - 複合材料から作られるターボ機械ブレードを製造する方法 - Google Patents
複合材料から作られるターボ機械ブレードを製造する方法 Download PDFInfo
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Abstract
Description
本方法は:
ブレード翼形−および−根元部プリフォーム部分を含む単一体として可撓性繊維ブランクを作るように3次元製織を用いるステップと、
プラットフォーム要素を繊維ブランクと組み立てるようにこれを変形させながら、プラットフォーム要素をその開口を介して可撓性繊維ブランクに係合させるステップと、
製造されるべきブレードの形状に近い形状のブレードプラットフォームを得るために、その上に組み立てられるプラットフォーム要素と共に繊維ブランクを成形するステップと、
成形後に、シェーパでブレードプリフォームをその形状に圧密するステップと、
組み込まれたプラットフォームを有する複合材ブレードを得るために、圧密化ブレードプリフォームの最後の高密度化を行うステップとを含む。
単一体として複数の繊維ブランクを作るように3次元製織を用いるステップであって、それぞれが、それぞれのブレード翼形−および−根元部プリフォーム部分を含むステップと、
翼形輪郭形状の複数の開口を有する下部または頂部ブレードプラットフォーム要素を別々に作るステップと、
プラットフォーム要素をその開口を介して繊維ブランクに同時に係合させるステップとを含む。
側方部分106および108を含んでいる。ブレードの下部プラットフォームの位置に実質的に対応し、かつ部分102の外側端部に延在する位置から開始すると、部分106および108は、部分102に連結されず、非相互連結ゾーン106aおよび108aは、繊維ブランクの製織中に設けられる。非相互連結ゾーンは、方向Lに直角な平面に関して角度αを形成する線106b(図2では破線で描かれる)および108bから開始することを留意されたい。変形では、線106bおよび108bは、湾曲されることもできる。
Claims (13)
- 組み込まれる下部および/または頂部プラットフォームを有する複合材ターボ機械ブレードを製造する方法にして、剛性化繊維強化材を備え、かつ製造されるべきブレードのプラットフォームの形状に近い形状を有するブレードプラットフォーム要素を別々に作るステップであり、製造されるべきブレードの翼形の輪郭の形状を有する少なくとも1つの開口が、プラットフォーム要素を通して形成されるステップと、プラットフォーム要素をその開口によってブレードの翼形および根元部用の繊維強化材プリフォームに係合させるステップと、プラットフォーム要素をブレード翼形−および−根元部プリフォームと組み立てるステップとを含む方法であって、
ブレード翼形−および−根元部プリフォーム部分を含む単一体として可撓性繊維ブランクを作るように3次元製織を用いるステップと、
プラットフォーム要素を繊維ブランクと組み立てるようにこれを変形させながら、プラットフォーム要素をその開口を介して可撓性繊維ブランクに係合させるステップと、
製造されるべきブレードの形状に近い形状のブレードプラットフォームを得るために、その上に組み立てられるプラットフォーム要素と共に繊維ブランクを成形するステップと、
成形後に、シェーパでブレードプリフォームをその形状に圧密するステップと、
組み込まれたプラットフォームを有する複合材ブレードを得るために、圧密化ブレードプリフォームの最後の高密度化を行うステップとを含むことを特徴とする、方法。 - ブランクがまた、係合された後にプラットフォーム要素に重ね、それに接合できるように展開可能結合部分で作られることを特徴とする、請求項1に記載の方法。
- ブランクを製織する間、非相互連結ゾーンが、結合部分の展開を容易にするように残されることを特徴とする、請求項2に記載の方法。
- 繊維ブランクとのプラットフォーム要素の結合が、縫合、ピン止め、または共高密度化によって行われることを特徴とする、請求項1から3のいずれか一項に記載の方法。
- ブレードプリフォームが、化学蒸気浸透によって圧密されることを特徴とする、請求項1から4のいずれか一項に記載の方法。
- 圧密が、樹脂を含む強化組成物で含浸するステップと、次いで成形後に樹脂を硬化させるステップとを含むことを特徴とする、請求項1から4のいずれか一項に記載の方法。
- 含浸が、成形の前にブランクについて行われることを特徴とする、請求項6に記載の方法。
- 複数の繊維ブランクが、連続ストリップに織られ、個々のブランクが、織られたストリップから切り取られることを特徴とする、請求項1から7のいずれか一項に記載の方法。
- 複数のプラットフォーム要素が、複数の互いに接合される繊維層を形成することによって、および剛性化によって得られる部分部材から切断されることを特徴とする、請求項1から8のいずれか一項に記載の方法。
- プラットフォーム要素が、化学蒸気浸透によって剛性化されることを特徴とする、請求項1から9のいずれか一項に記載の方法。
- プラットフォーム要素が、樹脂を含む剛性化組成物で含浸し、これに続き樹脂を硬化させることによって剛性化されることを特徴とする、請求項1から9のいずれか一項に記載の方法。
- プラットフォーム要素が、樹脂を含む剛性化組成物で含浸し、次いで樹脂を硬化させることによって剛性化され、繊維ブランクの強化樹脂およびプラットフォーム要素の剛性化樹脂が、同時に熱分解されることを特徴とする、請求項6に記載の方法。
- 多翼形ブレードを製造する場合に、
単一体として複数の繊維ブランクを作るように3次元製織を用いるステップであり、それぞれが、それぞれのブレード翼形−および−根元部プリフォーム部分を含むステップと、
翼形輪郭形状の複数の開口を有する下部または頂部ブレードプラットフォーム要素を別々に作るステップと、
プラットフォーム要素をその開口を介して繊維ブランクに同時に係合させるステップとを含むことを特徴とする、請求項1から12のいずれか一項に記載の方法。
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PCT/FR2010/050565 WO2010116066A1 (fr) | 2009-04-06 | 2010-03-26 | Procede de fabrication d'une aube de turbomachine en materiau composite |
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