JPH02225026A - Manufacture of curved surface body of composite material - Google Patents
Manufacture of curved surface body of composite materialInfo
- Publication number
- JPH02225026A JPH02225026A JP1047337A JP4733789A JPH02225026A JP H02225026 A JPH02225026 A JP H02225026A JP 1047337 A JP1047337 A JP 1047337A JP 4733789 A JP4733789 A JP 4733789A JP H02225026 A JPH02225026 A JP H02225026A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- disk
- disc
- shaped fabric
- shaped textile
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 239000012779 reinforcing material Substances 0.000 claims abstract description 10
- 238000003825 pressing Methods 0.000 claims abstract description 5
- 239000004744 fabric Substances 0.000 claims description 47
- 238000000034 method Methods 0.000 claims description 7
- 238000000465 moulding Methods 0.000 claims description 2
- 239000004753 textile Substances 0.000 abstract description 13
- 239000011347 resin Substances 0.000 abstract description 7
- 229920005989 resin Polymers 0.000 abstract description 7
- 239000007788 liquid Substances 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 2
- 230000000593 degrading effect Effects 0.000 abstract 1
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 230000037303 wrinkles Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Landscapes
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Moulding By Coating Moulds (AREA)
- Woven Fabrics (AREA)
- Looms (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、複合材によりパラボラアンテナ、スピーカー
コーンなどの曲面体を製造するための方法に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method for manufacturing curved objects such as parabolic antennas and speaker cones from composite materials.
従来の技術
従来複合材製の円形の曲面体としては、実公昭５９−３
７３６１号公報に記載されたものが知られている。この
ものは車両用のホイールであって、円盤状の織物を強化
材とした複合材よりなるものである。Conventional technology Conventionally, as a circular curved body made of composite material,
The one described in Publication No. 7361 is known. This wheel is for a vehicle and is made of a composite material reinforced with disk-shaped fabric.
発明が解決しようとする問題点
しかしながらこのものにおいては、強化材は円盤状であ
り、これを型に押し当てることにより所望の曲面に成形
するのであるが、その強化材としての円盤状織物を、そ
の中心を成形品の中心に一致させながら、全周方向に均
一にドレープさせ、型に沿わせるのは極めて困龍である
。特に手作業で行う場合には、円盤状織物の組織が波打
ち、十分な強化効果が得られず、成形品の強度が不十分
となることがある。Problems to be Solved by the Invention However, in this invention, the reinforcing material is disc-shaped, and is pressed against a mold to form a desired curved surface. It is extremely difficult to align the center with the center of the molded product while draping it uniformly around the entire circumference and following the mold. Particularly when the process is carried out manually, the structure of the disc-shaped fabric may become wavy, and a sufficient reinforcing effect may not be obtained, resulting in insufficient strength of the molded product.
また前記従来例においては、強化材となる円盤状織物が
放射状方向糸と周方向糸とよりなるものであるが、放射
状方向糸が外周と内周との間をジグザグに織込まれてお
り、その長さが制限されている。Further, in the conventional example, the disk-shaped fabric serving as the reinforcing material is made of radially directed threads and circumferentially directed threads, but the radially directed threads are woven in a zigzag pattern between the outer periphery and the inner periphery. Its length is limited.
従ってこの円盤状織物を型の表面に沿ってドレープさせ
る場合、径方向の長さを伸縮させることができず、外周
部付近を周方向に縮めることにより型に沿わせなければ
ならない、そのため円盤状織物の外周付近に皺がより、
厚みにむらが生じたり、樹脂リッチ部分が生じたりして
複合材として十分な強度が得られない。Therefore, when draping this disk-shaped fabric along the surface of a mold, the length in the radial direction cannot be expanded or contracted, and the area near the outer periphery must be contracted in the circumferential direction to fit the pattern. There are wrinkles near the outer periphery of the fabric,
Due to uneven thickness and resin-rich areas, sufficient strength as a composite material cannot be obtained.
本発明はかかる事情に鑑みなされたものであって、全体
に互って均一な複合材製の曲面体を製造するための方法
を提供することを目的とするものである。The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a method for manufacturing a curved body made of a composite material that is uniform throughout.
問題点を解決する手段
而して第一の発明は、放射状に延びる放射状方向糸と、
中心を取巻いて螺旋状に延びる周方向糸とを織成してな
り、前記中心付近には前記周方向糸がない空孔が形成さ
れており、且つその内周に前記放射状方向糸の延長部を
突出させた円盤状織物を織成し、当該円盤状織物の外周
をリングに固定し、その円盤状織物に製造されるべき曲
面体の型を押し当て、前記放射状方向糸の延長部を利用
して円盤状織物の組織を変形させることにより当該円盤
状織物を前記型に沿わせ、当該型の表面において前記円
盤状織物を強化材として複合材を成形することを特徴と
するものである。Means for solving the problem, the first invention is to use radially directed threads extending radially,
Circumferential yarns extending spirally around the center are woven, and a hole is formed near the center where the circumferential yarn is not present, and an extension of the radial yarn is formed on the inner periphery of the hole. A protruding disk-shaped fabric is woven, the outer periphery of the disk-shaped fabric is fixed to a ring, a mold for a curved body to be manufactured is pressed against the disk-shaped fabric, and the disk is woven using the extensions of the radially directed threads. The present invention is characterized in that the structure of the disk-shaped fabric is deformed so that the disk-shaped fabric is aligned with the mold, and a composite material is formed on the surface of the mold using the disk-shaped fabric as a reinforcing material.
また第二の発明は、放射状に延びる放射状方向糸と、中
心を取巻いて螺旋状に延びる周方向糸とを織成してなり
、前記中心付近には前記周方向糸がない空孔が形成され
ており、且つその内周に前記放射状方向糸の延長部を突
出させた円盤状織物を織成し、当該円盤状織物の外周を
リングに固定し、その円盤状織物に製造されるべき曲面
体の型を押し当て、前記放射状方向糸の延長部を利用し
て円盤状織物の組織を変形させることにより当該円盤状
織物を前記型に沿わせ、前記放射状方向糸の前記延長部
で型の表面に沿って前記空孔を覆い、前記型の表面にお
いて前記円盤状織物を強化材として複合材を成形するこ
とを特徴とするものである。この第二の発明によれば、
その中心部まで強化材で補強された複合材製曲面体を製
造することができる。Moreover, the second invention is made by weaving radially directed threads extending radially and circumferential threads surrounding the center and extending spirally, and a void is formed near the center where there is no circumferential thread. A disk-shaped fabric having an extension part of the radially directed yarn protruding from the inner periphery is woven, the outer periphery of the disk-shaped fabric is fixed to a ring, and the shape of the curved body to be manufactured is attached to the disk-shaped fabric. By pressing and deforming the structure of the disk-shaped fabric using the extensions of the radially-directed yarns, the disk-shaped fabric is made to conform to the mold, and the extensions of the radially-directed yarns are applied along the surface of the mold. The present invention is characterized in that a composite material is formed by covering the pores and using the disc-shaped fabric as a reinforcing material on the surface of the mold. According to this second invention,
It is possible to manufacture a composite material curved body reinforced with a reinforcing material up to its center.
実施例 以下本発明の実施例を図面に従って説明する。Example Embodiments of the present invention will be described below with reference to the drawings.
第１図及び第２図は、本発明における強化材となる円盤
状ａ物を示すものである。この円盤状織物１は、その中
心から放射状に延びる放射状方向糸２と、前記中心を取
巻いて螺旋状に延びる周方向糸３とよりなり、この放射
状方向糸２と周方向糸３とを織成したものであって、そ
の形状は円盤状をなしている。FIG. 1 and FIG. 2 show a disc-shaped material that serves as a reinforcing material in the present invention. This disc-shaped fabric 1 consists of radial direction threads 2 extending radially from the center and circumferential direction threads 3 surrounding the center and extending spirally, and the radial direction threads 2 and the circumferential direction threads 3 are woven together. It has a disk-like shape.
而してこの円盤状織物１は、その中心部には前記周方向
糸３が織込まれておらず、空孔４が形成されており、放
射状方向糸２は円盤状織物１の内周から長く突出して延
長部５が形成されている。In this disk-shaped fabric 1, the circumferential yarns 3 are not woven into the center, and holes 4 are formed, and the radial yarns 2 are woven from the inner circumference of the disk-shaped fabric 1. An extension portion 5 is formed in a long protruding manner.
なお第２図において延長部５は図中上方に延びているが
、これは当該延長部５が存在することを作図の都合上表
現したものであって、必ずしも当該延長部５の円盤状織
物１本体部分との関係を現したものではない。In FIG. 2, the extension 5 extends upward in the drawing, but this is to represent the existence of the extension 5 for convenience of drawing, and it does not necessarily mean that the extension 5 extends upward in the disk-shaped fabric 1. It does not represent the relationship with the main body part.
そしてこの円盤状織物１の外周には、リング６が取付け
られている。A ring 6 is attached to the outer periphery of this disk-shaped fabric 1.
次に第一の発明においては、第３図に示すように、この
リング６に取付けられた円盤状１ｕｌｌを成形すべき曲
面体の型７に押し当て、その表面に沿わせる。Next, in the first invention, as shown in FIG. 3, the disk-shaped 1ull attached to the ring 6 is pressed against the mold 7 of the curved body to be molded and made to follow the surface thereof.
然る後、円盤状織物１を型７に沿わせた状態で、これに
反応硬化型樹脂液８を含浸させ、これを硬化させて、前
記円盤状織物１を強化材として型７の曲面に沿った複合
材の曲面体９を成形する。然る後この曲面体９を型７か
ら取外し、外周及び内周を所定の形状に裁断して仕上げ
ることにより、第５図に示すように中央部に透孔１０を
有する略円盤状の曲面体９が得られる。After that, while the disc-shaped fabric 1 is placed along the mold 7, it is impregnated with a reaction-curing resin liquid 8, which is cured, and applied to the curved surface of the mold 7 using the disc-shaped textile 1 as a reinforcing material. A curved body 9 of composite material along the shape is formed. Thereafter, this curved body 9 is removed from the mold 7, and the outer and inner peripheries are cut into a predetermined shape and finished, thereby producing a substantially disk-shaped curved body having a through hole 10 in the center as shown in FIG. 9 is obtained.
次に第二の発明について説明すると、第３図に示すよう
に円盤状織物１を型７に押し当て、その表面に沿わせた
後、円盤状織物１の空孔４に突出した延長部５を型７の
表面に沿わせ、第６図及び第７図に示すように空孔４を
覆う、この例においては空孔４を互いに直交する二方向
に延ばして空孔４を覆っているが、この状態に限らず適
宜の配列で型７の表面に沿わせて空孔４を覆うことがで
きる。Next, the second invention will be explained. As shown in FIG. along the surface of the mold 7 to cover the holes 4 as shown in FIGS. 6 and 7. In this example, the holes 4 are extended in two directions orthogonal to each other to cover the holes 4. The holes 4 can be covered not only in this state but also in an appropriate arrangement along the surface of the mold 7.
この状態において、空孔４を覆った延長部５をも含む円
盤状織物１に反応硬化型樹脂液８を含浸させて硬化させ
、型７に沿った複合材製曲面体９を成形するのである。In this state, the disk-shaped fabric 1 including the extension portion 5 covering the holes 4 is impregnated with a reaction-curing resin liquid 8 and cured, and a composite material curved body 9 is molded along the mold 7. .
然る後この曲面＃９を型７から取外し、外周及び内周を
所定の形状に裁断して仕上げることにより、第８図に示
すように透孔のない、全面に亙って所望の曲面を有する
略円盤状の曲面体９が得られる。Thereafter, this curved surface #9 is removed from the mold 7, and the outer and inner peripheries are cut into a predetermined shape and finished to form a desired curved surface over the entire surface without through holes, as shown in FIG. A substantially disk-shaped curved surface body 9 having the following shapes is obtained.
なお以上の説明においては、円盤状織物１を型７の表面
に沿わせた後、当該円盤状織物１に反応硬化型ｖＡ脂液
８を含浸させて固化させ、複合材とすることとしている
が、必ずしもこの工程に限定されるものではない６円盤
状織物ｌに予め反応硬化型樹脂液８を含浸させてプリプ
レグとしておき、これを加熱しながら型７に押し当てて
その表面に沿わせ、反応硬化型樹脂液８を固化させて複
合材を成形することもできる。In the above explanation, after the disk-shaped fabric 1 is placed along the surface of the mold 7, the disk-shaped fabric 1 is impregnated with a reaction-curable vA fat liquid 8 and solidified to form a composite material. , but is not necessarily limited to this process. 6 A disk-shaped fabric 1 is pre-impregnated with a reaction-curing resin liquid 8 to form a prepreg, which is heated and pressed against a mold 7 along its surface, and the reaction is carried out. It is also possible to mold the composite material by solidifying the curable resin liquid 8.
また上記説明においては円盤状織物１は一層のみ示され
ているが、多層に重ねたものであっても差支えない。Further, in the above description, only one layer of the disk-shaped fabric 1 is shown, but it may be made of multiple layers.
作用
本発明においては、円盤状織物１の外周にリング６を取
付け、この状態で円盤状織物１を型７に押し当ててドレ
ープさせて所望の形状に賦形しているので、円盤状繊物
１に局部的に力がかかつて歪むことがなく、全周に亙っ
て均等に変形してドレープする。Function In the present invention, a ring 6 is attached to the outer periphery of the disc-shaped textile 1, and in this state, the disc-shaped textile 1 is pressed against the mold 7 and draped to shape it into a desired shape. 1 will not be distorted by applying force locally, and will deform and drape evenly over the entire circumference.
また円盤状′ａ物１を型７に押し当てて沿わせる際には
、円盤状織物１の外周から内周に至る距離が賦形後にお
いては大きくなる０本発明においては円盤状織物１の内
周において放射状方向糸２の延長部５が空孔４内に突出
しているので、当該延長部５が円盤状織物ｌの本陣部分
の放射状方向糸２に引込まれることにより内外周間の距
離が拡張することができる。In addition, when pressing the disc-shaped fabric 1 against the mold 7 to make it fit, the distance from the outer periphery to the inner periphery of the disc-shaped fabric 1 increases after shaping. Since the extension part 5 of the radially directed yarn 2 protrudes into the hole 4 at the inner circumference, the distance between the inner and outer circumferences is reduced by drawing the extension part 5 into the radial direction yarn 2 of the main part of the disc-shaped fabric l. can be expanded.
発明の効果
従って本発明によれば、円盤状織物１を小さい力で容易
に型７の表面に沿わせることができ、またそのとき円盤
状織物１は全体に亙って均等に変形することができ、円
盤状織物１の組織が崩れることもない。また曲面体９中
において円盤状織物１が局部的に皺がよったり、樹脂リ
ッチとなったりすることがなく、高品質の強度の高い曲
面体９が得られる。Effects of the Invention Therefore, according to the present invention, the disk-shaped fabric 1 can be easily made to follow the surface of the mold 7 with a small force, and at this time, the disk-shaped fabric 1 can be deformed uniformly throughout. The structure of the disk-shaped fabric 1 does not collapse. In addition, the disk-shaped fabric 1 does not wrinkle locally or become resin-rich in the curved body 9, and a high-quality, strong curved body 9 can be obtained.
さらに第一の発明によれば、中央部に透孔１０を有する
曲面体９を容易に成形することができ、また第二の発明
によれば、透孔１０のない全面に互って均等な曲面体９
を得ることができると共に、その曲面体９の強度も全面
に互ってはり均一なものとなる。Further, according to the first invention, it is possible to easily form the curved surface body 9 having the through hole 10 in the center, and according to the second invention, the curved surface body 9 having the through hole 10 in the central part can be formed evenly on the entire surface without the through hole 10. Curved body 9
can be obtained, and the strength of the curved surface body 9 is also uniform over the entire surface.
第１図及び第２図は本発明において使用する円盤状繊物
を示すものであって、第１図はその平面図、第２図は中
央縦断面図である。第３図及び第４図は第一の発明によ
り曲面体を成形する工程を示す中央縦断面図であり、第
５図は成形された曲面体の中央縦断面図である。第６図
及び第７図は第二の発明により曲面体を成形する状態を
示す平面図及び中央縦断面図であり、第８図は成形され
た曲面体の中央縦断面図である。FIGS. 1 and 2 show a disk-shaped fiber used in the present invention, with FIG. 1 being a plan view thereof and FIG. 2 being a central vertical sectional view thereof. 3 and 4 are central longitudinal cross-sectional views showing the process of molding a curved surface according to the first invention, and FIG. 5 is a central longitudinal cross-sectional view of the molded curved surface. FIGS. 6 and 7 are a plan view and a central vertical cross-sectional view showing a state in which a curved body is molded according to the second invention, and FIG. 8 is a central vertical cross-sectional view of the molded curved body.
Claims (1)
いて螺旋状に延びる周方向糸（３）とを織成してなり、
前記中心付近には前記周方向糸（３）がない空孔（４）
が形成されており、且つその内周に前記放射状方向糸（
２）の延長部（５）を突出させた円盤状織物（１）を織
成し、当該円盤状織物（１）の外周をリング（６）に固
定し、その円盤状織物（１）に製造されるべき曲面体の
型（７）を押し当て、前記放射状方向糸（２）の延長部
（５）を利用して円盤状織物（１）の組織を変形させる
ことにより当該円盤状織物（１）を前記型（７）に沿わ
せ、当該型（７）の表面において前記円盤状織物（１）
を強化材として複合材を成形することを特徴とする、複
合材製曲面体の製造方法 ２ 放射状に延びる放射状方向糸（２）と、中心を取巻
いて螺旋状に延びる周方向糸（３）とを織成してなり、
前記中心付近には前記周方向糸（３）がない空孔（４）
が形成されており、且つその内周に前記放射状方向糸（
２）の延長部（５）を突出させた円盤状織物（１）を織
成し、当該円盤状織物（１）の外周をリング（６）に固
定し、その円盤状織物（１）に製造されるべき曲面体の
型（７）を押し当て、前記放射状方向糸（２）の延長部
（５）を利用して円盤状織物（１）の組織を変形させる
ことにより当該円盤状織物（１）を前記型（７）に沿わ
せ、前記放射状方向糸（２）の前記延長部（５）で型（
７）の表面に沿って前記空孔（４）を覆い、前記型（７
）の表面において前記円盤状織物（１）を強化材として
複合材を成形することを特徴とする、複合材製曲面体の
製造方法[Claims] 1. A radial yarn (2) that extends radially and a circumferential yarn (3) that extends spirally around the center,
Holes (4) where the circumferential thread (3) is not present near the center
is formed, and the radial direction thread (
A disk-shaped fabric (1) with the extension part (5) of 2) protruding is woven, the outer periphery of the disk-shaped fabric (1) is fixed to a ring (6), and the disk-shaped fabric (1) is manufactured. The disk-shaped fabric (1) is made by pressing the curved shape mold (7) and deforming the structure of the disk-shaped fabric (1) using the extensions (5) of the radially directed threads (2). The disc-shaped fabric (1) is placed along the mold (7) on the surface of the mold (7).
Method 2 for manufacturing a curved surface body made of composite material, characterized by molding a composite material using as a reinforcing material Radial direction threads (2) extending radially and circumferential direction threads (3) extending spirally around the center It is made up of
Holes (4) where the circumferential thread (3) is not present near the center
is formed, and the radial direction thread (
A disk-shaped fabric (1) with the extension part (5) of 2) protruding is woven, the outer periphery of the disk-shaped fabric (1) is fixed to a ring (6), and the disk-shaped fabric (1) is manufactured. The disk-shaped fabric (1) is made by pressing the curved shape mold (7) and deforming the structure of the disk-shaped fabric (1) using the extensions (5) of the radially directed threads (2). Along the mold (7), form the mold (
The holes (4) are covered along the surface of the mold (7).
) A method for manufacturing a curved body made of a composite material, characterized in that a composite material is formed using the disk-shaped fabric (1) as a reinforcing material on the surface of the composite material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1047337A JPH02225026A (en) | 1989-02-27 | 1989-02-27 | Manufacture of curved surface body of composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1047337A JPH02225026A (en) | 1989-02-27 | 1989-02-27 | Manufacture of curved surface body of composite material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02225026A true JPH02225026A (en) | 1990-09-07 |
Family
ID=12772381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1047337A Pending JPH02225026A (en) | 1989-02-27 | 1989-02-27 | Manufacture of curved surface body of composite material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02225026A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016107628A (en) * | 2014-11-28 | 2016-06-20 | 三菱電機株式会社 | Method for manufacturing sandwich structure having curved surface |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS649724A (en) * | 1987-07-03 | 1989-01-13 | Nissan Motor | Manufacture of hollow composite material |
-
1989
- 1989-02-27 JP JP1047337A patent/JPH02225026A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS649724A (en) * | 1987-07-03 | 1989-01-13 | Nissan Motor | Manufacture of hollow composite material |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016107628A (en) * | 2014-11-28 | 2016-06-20 | 三菱電機株式会社 | Method for manufacturing sandwich structure having curved surface |
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