CN103079800A - 生产具有编织覆盖层、由复合材料制成的零件的方法 - Google Patents
生产具有编织覆盖层、由复合材料制成的零件的方法 Download PDFInfo
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Abstract
本发明涉及一种制造复合材料零件的方法,包括以下步骤:制造心轴;尽可能接近地遵循心轴的形状,围绕心轴编织纤维覆盖层(11);将至少一个纤维补片(12a、12b、12c)局部施加到编织覆盖层上,每块补片成形为具有足够的变形度,以接近地遵循编织覆盖层或施加在其上的补片的轮廓;根据需要重复编织和补片施加这两个步骤所需次数以获得预成型件;将树脂引入到预成型件内并使其聚合化。
Description
技术领域
本发明涉及制造具有编织覆盖层的复合材料零件的方法。
背景技术
已知借助于中空心轴制造零件,该中空心轴通过编织机的中心孔,从而将心轴覆盖在一层或多层编织纤维覆盖层中。然后,生成的组件经受树脂浸泡或注入,然后再加热以使树脂聚合化。
然而,在以此方法形成的覆盖层中,编织不能获得很大的厚度变化。至多,减慢心轴通过编织机的速度,能够少量地增加编织覆盖层的厚度。这使得使用编织来制造具有局部变化厚度的零件很困难或甚至不可能。
文献FR2890591提出制造具有纤维预成型件的零件,该预成型件用预先浸渍的沿零件纵向方向延伸的单一方向的纤维织物带进行加强,以便加强所述零件,尤其是处于压缩中的零件。
文献WO2006/118448披露了一种加强编织纤维零件的方法,该方法包括插入平的加强体的步骤,该加强体用手工方法或借助于机器人来定位。这些平的加强件由一定数量的纤维织物层构成,这些纤维织物层在使用热塑性粘结剂的现有步骤中彼此固定,生成的组件经受高温和高压。然而,该类型的加强件呈现非常刚性的缺点。
发明内容
本发明的目的是提供一种制造具有编织覆盖层的复合材料零件的方法,该零件还包括显著的厚度变化。
为了达到该目的,本发明提供一种制造复合材料零件的方法,该方法包括如下步骤:
·制造心轴;
·尽可能接近地配合心轴的形状,围绕心轴编织纤维覆盖层;
·将至少一个纤维补片(patch)局部地施加到编织覆盖层上,每块补片成形为具有足够的变形度,以接近地配合在编织覆盖层上,或配合在其上施加的补片上;
·按照所需的频度,重复编织和补片施加这两个步骤以获得预成型件;
·编织覆盖整个组件的外编织覆盖层;以及
·将树脂传送到预成型件内并使其聚合化。
本发明的方法能够在零件的受应力部位形成局部的额外厚度。此外,不是从具有难于覆盖在一个或多个编织覆盖层内的变化巨大的形状的心轴开始,而是能够从覆盖在编织覆盖层内的较平滑形状的心轴开始,通过局部地堆叠为了获得期望的形状而已经切割出并且足够可变形以接近地配合其所施加的形状的纤维补片,将变化更为显著的形状构造在心轴上。
补片从预浸渍的单向织物中切割出,或者从干的织物(例如,具有斜纹织的织物)中切割出,因为它们是高度可变形的。在织物成形的同时通过使其预聚合化,用少许树脂浸渍织物有助于补片在被放置在编织覆盖层之前成形。假设以此方式制成的补片保持足够的变形度以接近地配合其上施加的形状,如果合适的话,补片可由多个织物厚度组成。
本发明方法中的编织和补片施加步骤可重复多次。因此,可在预成型件的任何区域内任意地改变纤维厚度。
附图说明
借助于以下对本发明方法的特殊实施方式的描述,并结合附图中诸图,可以更好地理解本发明,在附图中:
图1是根据本发明制造的起落架摇臂梁的立体图;
图2是根据本发明已经被覆盖在编织的预成型件内的心轴的局部图,用以生产图1的摇臂梁,其具有局部地配合在其上的织物补片;
图3是施加的织物补片的分解图;
图4是覆盖在位于另一部位的其它织物补片内的同一心轴的局部图;
图5是在加工摇臂梁之前的图1平面V上的剖视图;
图6是在加工摇臂梁之前的图1平面VI上的剖视图;
图7是在摇臂梁已经加工之后的图1平面VII上的纵向剖视图的半视图。
具体实施方式
下面结合图1所示类型的起落架摇臂梁来描述本发明,其包括本体1,本体1具有第一端2和第二端3,第一端2成形为接纳枢轴以将摇臂梁铰接到起落架上,而第二端3成形为接纳轮轴,该轮轴接纳轮子。摇臂梁还具有位于其顶部上的突耳4,用于接纳连接到减振器的销子。
如图中清楚地可见,第一端具有两个突出的侧凸出部分2a和2b,孔贯穿其中以供枢轴穿过,这些孔设计成与环相配合。
如图2所示,初始阶段是生产形状逐渐变化的心轴10,第一步骤是将心轴覆盖在编织覆盖层11内,在该实例中,编织覆盖层11由碳纤维制成。此后,在以此方法覆盖的心轴上,将一系列重叠的补片12装配到以下部位,即:要求将突出的形状或增大的厚度给予组件,从干的碳纤维织物中切割出每个补片。该实例示出一系列补片12a、12b和12c,它们彼此重叠并覆盖心轴的突起之一。在另一侧上,可以看到尚未被覆盖在补片内的对应突起。在图3中,补片12a、12b和12c显示在分解图中。最好从斜纹纤维织物中切割出补片。斜纹织是已知允许织物高度可变形的织法,因此允许补片紧密地施加抵靠所要覆盖的形状。因此,补片通过紧密地施加抵靠编织覆盖层或其覆盖的补片而使补片成形。在特殊的实施方式中,补片在施加在覆盖心轴的编织物上之前至少部分地成形(就如该实例中的壳形),由此帮助补片放置就位,尤其是帮助它们定位。为此目的,使用用树脂预浸渍过的织物是有利的,补片进行预聚合化,同时在施加到编织的覆盖层之前成形。然而,应该小心地保证以此方法预成型的补片仍保持充分地可变形,以便能够尽可能紧密地施加抵靠编织的覆盖层或其覆盖的补片。
以类似的方式,图4示出在突耳4处施加补片14抵靠覆盖心轴的编织物。在该实例中,补片覆盖突耳4的两个半部和邻近的突起部3。
通过喷涂树脂,或通过施加能使补片以足够可靠的方式紧固在心轴上而能使配装有补片的心轴10以该方式通过编织机而没有补片移动或变得脱离开的任何其它粘结剂,将补片较佳地固定就位在覆盖心轴10的编织物11上。补片的纤维较佳地以这样一种方式定向,即,与编织覆盖层的纤维定向互补,以便优化最终的结构。
然后,由于需要有许多次,所以要重复编织和施加补片这两个步骤。以此方式制成的组件最好被覆盖在最终的编织物内。自然地是,选择以此方式构成补片和编织覆盖层的堆叠,以便能使组件被最终的外编织覆盖层覆盖。尤其是,有利地使外部形状逐渐地变化,以限制厚度的突然改变,从而使最终的编织物可紧密配合在外部形状上。这自然适用于中间编织物。
图5和6是两个图示,显示通过编织覆盖层分开的连续补片系列(阴影)。在补片堆积的区域内,心轴的初始形状非常显著地转变,最后达到最终零件所需要的形状和厚度。
有利地,一旦堆叠结束,通过插入横向纤维(图5和6中用横线代表),例如,通过缝合或接缝操作,就可加强以此方式覆盖在补片内的区域。在树脂被注入和聚合化之前,这种加强有利于将补片固定就位在编织覆盖层之间。加强永久地保持就位,因而一旦完成便形成零件的一体部分,由此大大地减少因安装了通过加强区域插入到加工过的孔内的轮轴或枢轴而引起分层的任何风险。
在图5和6中,缝合用通过编织覆盖层和(带阴影的)补片的线表示。在这些图中,补片已经缝合在其全部表面上。然而,在将要穿过的部位(用点划线表示)内,能省略任何的缝合。
图7示出摇臂梁的厚度是如何变化的。在其中心部分,主要部分的厚度由四层编织层组成,而在部分2和3中,厚度由具有插入在两部分之间的三个系列补片(用阴影表示)的四层编织层构成。
以此方式构成的预成型件通过注入、浸泡或任何其它传统方法接纳树脂,然后使树脂聚合化,以便获得几乎完成的最终零件。预成型件最好放置在模具内。将树脂注入到模具内,然后组件经受加热,如果合适的话,还经受均衡的压缩。然后剩下要做的所有事情就是穿过孔,如果合适的话,使它们装备有若干个环。
本发明自然不局限于以上描述,相反地是,本发明涵盖落入权利要求书所定义范围之内的任何变体。尤其是,尽管此实例中的补片和编织物由碳纤维制成,但本发明自然可归纳到任何其它技术上用的纤维,诸如是玻璃纤维或芳纶纤维。
尽管此实例中的补片从斜纹织物中切割出,但补片也可从具有其它织纹的织物中切割出,或从缝合的多层织物中切割出,该多层织物缝合成在根据力作用的方向施加补片的区域中优化纤维的定向。自然,补片必须保持足够的变形度,以便能尽可能紧密地施加抵靠它们所覆盖的表面。在另一变体中,通过沉积纤维片组成的补片,例如,通过使用安装在编织机上的机器人来沉积纤维丝的操作,由此制成补片。
尽管已经说过,通过喷溅树脂将补片固定就位在编织覆盖层上,但补片也可使用与补片的纤维同样特性或与其相容的纱线(例如,热塑性纱线)在原地缝合。
以上描述的编织步骤在于将编织覆盖层施加在补片的最后堆叠上,且每个编织覆盖层本身可包括一层或多层编织层,而且可使这些层连接在一起(互锁)。
自然,本发明适用于能够通过编织进行制造的任何零件,诸如接纳四个或六个带中心铰链的轮子的摇臂梁、支柱或连杆。
Claims (6)
1.一种制造复合材料零件的方法,该方法包括以下步骤:
·制造心轴;
·尽可能接近地配合心轴的形状、围绕心轴编织纤维覆盖层(11);
·将至少一个纤维补片(12a、12b、12c;14)局部地施加到编织覆盖层上,每块补片成形为具有足够的变形度,以接近地配合在编织覆盖层上,或配合在其上施加的补片上;
·按照所需的频度,重复编织和补片施加这两个步骤以获得预成型件;
·编织覆盖整个组件的外编织覆盖层;以及
·将树脂传送到预成型件内并使其聚合化。
2.如权利要求1所述的方法,其特征在于,所述补片固定到编织覆盖层。
3.如权利要求2所述的方法,其特征在于,所述固定步骤包括使树脂预聚合化。
4.如权利要求2所述的方法,其特征在于,所述固定步骤包括:通过沿正交于补片堆叠和编织覆盖层的方向插入纤维,例如通过接缝或缝合而使纤维通过其间,从而进行粘结。
5.如权利要求1所述的方法,其特征在于,所述预成型件放置在模具内,然后将树脂传送到模具内并进行聚合化。
6.如权利要求1所述的方法,其特征在于,多个补片彼此堆叠。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1057071A FR2964339B1 (fr) | 2010-09-06 | 2010-09-06 | Procede de fabrication de pieces en materiaux composites, avec revetement tresse |
FR1057071 | 2010-09-06 | ||
PCT/EP2011/065397 WO2012032049A1 (fr) | 2010-09-06 | 2011-09-06 | Procede de fabrication de pieces en materiaux composites, avec revetement tresse |
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CN103079800A true CN103079800A (zh) | 2013-05-01 |
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CN2011800424215A Pending CN103079800A (zh) | 2010-09-06 | 2011-09-06 | 生产具有编织覆盖层、由复合材料制成的零件的方法 |
Country Status (9)
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US (1) | US20130213560A1 (zh) |
EP (1) | EP2613925B1 (zh) |
CN (1) | CN103079800A (zh) |
BR (1) | BR112013004713A2 (zh) |
CA (1) | CA2810178C (zh) |
ES (1) | ES2533433T3 (zh) |
FR (1) | FR2964339B1 (zh) |
RU (1) | RU2535848C2 (zh) |
WO (1) | WO2012032049A1 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105377536A (zh) * | 2013-10-18 | 2016-03-02 | 宝马股份公司 | 用于制造增强的纤维复合构件的方法 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2988407B1 (fr) * | 2012-03-22 | 2014-10-31 | Aircelle Sa | Procede de fabrication d'une preforme monobloc pour structure composite |
AU2013204015B1 (en) * | 2013-04-11 | 2014-03-13 | Carbon Revolution Pty Ltd | Face to rim connection for a composite wheel |
DE102013220337A1 (de) * | 2013-10-09 | 2015-04-09 | Bayerische Motoren Werke Aktiengesellschaft | Verfahren zum Herstellen eines verstärkten Faserverbundbauteils |
FR3018286B1 (fr) * | 2014-03-10 | 2016-05-27 | Aircelle Sa | Preforme tissee pour realiser un renfort circonferentiel ou torique a section en omega |
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CN101171122A (zh) * | 2005-05-03 | 2008-04-30 | 斯托克Sp航宇有限公司 | 制造中空纤维增强结构件的方法 |
CN101287587A (zh) * | 2005-09-12 | 2008-10-15 | 欧洲航空防务与空间公司Eads法国 | 制造rtm复合材料部件的方法和通过该方法得到的复合材料连杆 |
CN101384418A (zh) * | 2006-02-13 | 2009-03-11 | 皇家飞利浦电子股份有限公司 | 通过使用合成纤维板和将塑料施加到该纤维板来制造产品部件的方法 |
CN101652240A (zh) * | 2007-05-11 | 2010-02-17 | 波音公司 | 混合式复合面板系统与方法 |
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US5406033A (en) * | 1992-09-02 | 1995-04-11 | Maclean-Fogg Company | Insulator structure and method of construction |
RU2106252C1 (ru) * | 1995-08-09 | 1998-03-10 | Обнинское научно-производственное предприятие "Технология" | Способ изготовления силового элемента из полимерного композиционного материала |
US5718925A (en) * | 1995-11-15 | 1998-02-17 | Ossur Hf. | Apparatus for making a prosthesis socket |
SE509503C2 (sv) * | 1997-05-12 | 1999-02-01 | Volvo Ab | Arrangemang, förfarande och hålkropp vid formning av plastdetaljer |
EP1911875B1 (en) * | 2005-07-29 | 2012-08-22 | Toray Industries, Inc. | Reinforcing woven fabric and process for producing the same |
US8312827B1 (en) * | 2007-01-08 | 2012-11-20 | James J Free | Inter/pre-cured layer/pre-cured embroidered composite laminate and method of producing same |
-
2010
- 2010-09-06 FR FR1057071A patent/FR2964339B1/fr not_active Expired - Fee Related
-
2011
- 2011-09-06 US US13/820,936 patent/US20130213560A1/en not_active Abandoned
- 2011-09-06 RU RU2013115372/05A patent/RU2535848C2/ru not_active IP Right Cessation
- 2011-09-06 ES ES11752240.9T patent/ES2533433T3/es active Active
- 2011-09-06 EP EP11752240.9A patent/EP2613925B1/fr active Active
- 2011-09-06 BR BR112013004713A patent/BR112013004713A2/pt not_active IP Right Cessation
- 2011-09-06 CA CA2810178A patent/CA2810178C/fr active Active
- 2011-09-06 CN CN2011800424215A patent/CN103079800A/zh active Pending
- 2011-09-06 WO PCT/EP2011/065397 patent/WO2012032049A1/fr active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN101171122A (zh) * | 2005-05-03 | 2008-04-30 | 斯托克Sp航宇有限公司 | 制造中空纤维增强结构件的方法 |
CN101287587A (zh) * | 2005-09-12 | 2008-10-15 | 欧洲航空防务与空间公司Eads法国 | 制造rtm复合材料部件的方法和通过该方法得到的复合材料连杆 |
CN101384418A (zh) * | 2006-02-13 | 2009-03-11 | 皇家飞利浦电子股份有限公司 | 通过使用合成纤维板和将塑料施加到该纤维板来制造产品部件的方法 |
CN101652240A (zh) * | 2007-05-11 | 2010-02-17 | 波音公司 | 混合式复合面板系统与方法 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105377536A (zh) * | 2013-10-18 | 2016-03-02 | 宝马股份公司 | 用于制造增强的纤维复合构件的方法 |
Also Published As
Publication number | Publication date |
---|---|
FR2964339A1 (fr) | 2012-03-09 |
EP2613925A1 (fr) | 2013-07-17 |
FR2964339B1 (fr) | 2014-01-31 |
BR112013004713A2 (pt) | 2016-05-17 |
EP2613925B1 (fr) | 2015-01-14 |
WO2012032049A1 (fr) | 2012-03-15 |
ES2533433T3 (es) | 2015-04-10 |
US20130213560A1 (en) | 2013-08-22 |
RU2013115372A (ru) | 2014-10-20 |
CA2810178A1 (fr) | 2012-03-15 |
CA2810178C (fr) | 2016-04-12 |
RU2535848C2 (ru) | 2014-12-20 |
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