JP6721107B2 - 複合材料部材、複合材料部材の製造方法及びその成形用型 - Google Patents
複合材料部材、複合材料部材の製造方法及びその成形用型 Download PDFInfo
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- JP6721107B2 JP6721107B2 JP2019504272A JP2019504272A JP6721107B2 JP 6721107 B2 JP6721107 B2 JP 6721107B2 JP 2019504272 A JP2019504272 A JP 2019504272A JP 2019504272 A JP2019504272 A JP 2019504272A JP 6721107 B2 JP6721107 B2 JP 6721107B2
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/14—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by a layer differing constitutionally or physically in different parts, e.g. denser near its faces
- B32B5/145—Variation across the thickness of the layer
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24273—Structurally defined web or sheet [e.g., overall dimension, etc.] including aperture
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24273—Structurally defined web or sheet [e.g., overall dimension, etc.] including aperture
- Y10T428/24322—Composite web or sheet
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Forests & Forestry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Textile Engineering (AREA)
- Moulding By Coating Moulds (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Laminated Bodies (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Description
図1A、図1B及び図2に示すように、第1実施形態にかかる部材CMは、FRP層1と、FRP層1の上側の表面1a上に形成された樹脂リッチ層2と、FRP層1の下側の表面1b上に形成された樹脂リッチ層2と、部材CMの厚さ方向Tに穿設された孔3とを備える。なお、図示した部材CMは、平板状に形成されているが、その形状は用途に応じて適宜選択可能であり、例えば、曲板状であってもよい。
Vf=100×強化繊維の体積/(強化繊維の体積+強化繊維以外の成分の体積) (1)
本実施形態の変形例では、強化繊維Fとして、長繊維、短繊維などの不連続な繊維、または連続繊維と不連続繊維との組み合わせを採用することができる。さらに、他の変形例では、強化繊維Fの一部または全部が、ランダムに配向されたものを採用することができる。これらの変形例は、部材CMの形状が複雑で高い成形性が求められる場合などに好適である。また、これらの変形例によれば、上記効果(A)、(B)及び(D)に加えて、強化繊維Fそのものの構造により、強化繊維Fの剥離をより一層抑制できるという効果を得ることができる。
次に、第2乃至第4実施形態にかかる部材CMについて、図4A乃至図6Bを参照して説明する。なお、上記において既に説明した要素と同じ機能を有する要素については、同じ符号を付し、その説明を省略する。
部材CMの製造方法P1について、図7A乃至図9Cを参照して説明する。
次に、部材CMの他の製造方法P2について、図10A乃至図10Cを参照して説明する。なお、上記において既に説明した部材と同じ機能を有する部材については、同じ符号を付し、その説明を省略する。
次に、部材CMの他の製造方法P3について、図11A及び図11Bを参照して説明する。なお、上記において既に説明した部材と同じ機能を有する部材については、同じ符号を付し、その説明を省略する。
1 FRP層
1a,1b FRP層の表面
F 強化繊維
MR マトリックス樹脂
2 樹脂リッチ層
21 第1の樹脂リッチ層
22 第2の樹脂リッチ層
22a 環状凸部
22b 島状凸部
22c 線状凸部
3 孔
4 カラー
42 フランジ
42a 裏面
G1 隙間
A 接着剤
1f 強化繊維体(強化繊維基材)
MR1 樹脂
M1 成形体(複合材料成形体)
3Y 被穿孔部
9 成形型(型)
9a,9b 成形面
91 底面(成形面)
92 突起
CV1 隙間
9c 樹脂注入口(注入口)
1p プリプレグ(第1シート状成形材料)
2p 樹脂リッチシート(第2シート状成形材料)
1m FRP部材
2m 樹脂リッチシート部材(シート部材)
Claims (12)
- 繊維強化プラスチックからなるFRP層と、
前記繊維強化プラスチックのマトリックス樹脂と同じ樹脂で成形され、前記FRP層の表面の少なくとも一部の領域上に形成された、繊維含有率が前記FRP層の繊維含有率の5%以下である樹脂リッチ層と、
前記FRP層及び前記樹脂リッチ層を貫通するように穿設された孔と、
を備えた複合材料部材。 - 前記樹脂リッチ層が、前記FRP層の両側の表面に形成されており、
前記孔が、前記FRP層の両側の表面に形成された前記樹脂リッチ層と、前記FRP層とを貫通している、請求項1に記載の複合材料部材。 - 前記FRP層の強化繊維が連続繊維からなる、請求項1または2に記載の複合材料部材。
- 繊維強化プラスチックからなるFRP層と、
前記FRP層の表面の少なくとも一部の領域上に形成された、前記FRP層よりも繊維含有率の低い樹脂リッチ層と、
前記FRP層及び前記樹脂リッチ層を貫通するように穿設された孔と、
を備え、
前記孔には、フランジを有するカラーが挿通されており、
前記フランジは、前記フランジの裏面と前記FRP層の表面との間の隙間に設けられた接着剤によって、前記FRP層に接着されており、
前記樹脂リッチ層は、前記FRP層の表面と前記フランジの裏面との間に介在して、前記隙間の大きさを規定している、複合材料部材。 - 前記樹脂リッチ層は、前記FRP層の表面の前記フランジによって覆われた領域上に形成された、第1及び第2の樹脂リッチ層を備えており、
前記第1の樹脂リッチ層は、中央部に前記孔が穿設されており、
前記第2の樹脂リッチ層は、前記第1の樹脂リッチ層の外側に設けられている、請求項4に記載された複合材料部材。 - 前記第2の樹脂リッチ層が、前記第1の樹脂リッチ層の周囲を連続して包囲する環状凸部を構成している、請求項5に記載された複合材料部材。
- 前記第2の樹脂リッチ層が、前記第1の樹脂リッチ層の周囲を包囲する複数の島状凸部を構成している、請求項5または6に記載された複合材料部材。
- 前記第2の樹脂リッチ層が、前記第1の樹脂リッチ層から外側へ連続または不連続に延びる線状凸部を構成している、請求項5乃至7のいずれか一項に記載された複合材料部材。
- 複合材料部材の強化繊維となる強化繊維基材を型内に封入する工程と、
前記型内の前記強化繊維基材に樹脂を注入する工程と、
前記型内の前記樹脂を硬化させ、成形体を得る工程と、
前記成形体に孔を穿設する工程と、
を備え、
前記強化繊維基材を型内に封入する工程では、前記型の成形面に形成された突起により、前記強化繊維基材を前記成形面から離間した状態に保持し、
前記樹脂を注入する工程では、前記成形面から離間した状態に保持された前記強化繊維基材と前記成形面との間に形成される隙間に、前記樹脂を行き渡らせ、
前記孔を穿設する工程では、前記隙間に行き渡った樹脂が硬化したものからなる層を貫通するように、前記孔を穿設する、
複合材料部材の製造方法。 - 強化繊維基材に樹脂を含浸させてなる第1シート状成形材料の表面上に、前記樹脂と同じ樹脂で成形した、繊維含有率が前記第1シート状成形材料の繊維含有率の5%以下である第2シート状成形材料を重ね合わせた状態で加圧成形する工程と、
硬化した前記第1シート状成形材料からなる層と、硬化した前記第2シート状成形材料からなる層とを貫通するように孔を穿設する工程と、
を備える複合材料部材の製造方法。 - 繊維強化プラスチックからなるFRP部材の表面上に、前記繊維強化プラスチックのマトリックス樹脂と同じ樹脂で成形した、繊維含有率が前記FRP部材の繊維含有率の5%以下であるシート部材を接着する工程と、
前記FRP部材及び前記シート部材を貫通するように孔を穿設する工程と、
を備える複合材料部材の製造方法。 - 被穿孔部を有する複合材料成形体を成形するための型であって、
前記複合材料成形体の強化繊維となる強化繊維基材に樹脂を注入するための注入口と、
前記複合材料成形体の表面を成形する成形面と、
前記成形面のうち前記被穿孔部に対応する領域に形成され、前記強化繊維基材を前記成形面から離間した状態に保持する突起と、
を備えた型。
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