JPH10296864A - Device and method for molding composite material - Google Patents
Device and method for molding composite materialInfo
- Publication number
- JPH10296864A JPH10296864A JP9121469A JP12146997A JPH10296864A JP H10296864 A JPH10296864 A JP H10296864A JP 9121469 A JP9121469 A JP 9121469A JP 12146997 A JP12146997 A JP 12146997A JP H10296864 A JPH10296864 A JP H10296864A
- Authority
- JP
- Japan
- Prior art keywords
- prepreg
- plate
- molding
- tension
- laminated
- 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.)
- Granted
Links
Landscapes
- Moulding By Coating Moulds (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、繊維織物により補
強された強化樹脂からなる複合材の成形装置において、
予め樹脂を含浸してあるプリプレグ複合材の成形装置に
係り、特に複合材のしわ、うねりを防止する成形装置お
よび成形方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for molding a composite material comprising a reinforced resin reinforced by a fiber woven fabric,
The present invention relates to a molding apparatus for a prepreg composite material impregnated with a resin in advance, and more particularly to a molding apparatus and a molding method for preventing wrinkles and undulations of a composite material.
【０００２】[0002]
【従来の技術】近年、航空機、自動車などのあらゆる産
業分野において各種複合材が応用されるようになってき
ており、その傾向は益々増大している。ところで、一般
に曲面板複合材を成形する場合その屈曲部位には各種の
欠陥が出来易いものであって、従来から対策の試みがな
されている。例えば図７に示す特開平２−１７５２３号
公報の技術が知られている。図７において積層したプリ
プレグ１０１を金型１０２に重ね、このプリプレグ１０
１上に離型用フィルム１０３、通気用繊維１０４、真空
パック１０５をこの順に重ね、真空パック１０５の内側
を真空引きすることにより加圧成形し、オートクレーブ
で更に加圧し、加熱、硬化成形する装置である。そして
成形用型板１０６を離型用フィルム１０３と通気用繊維
１０４の間に挿入することにより屈曲部の肉厚の減少を
緩和している。2. Description of the Related Art In recent years, various composite materials have been applied in various industrial fields such as aircraft and automobiles, and the tendency has been increasing. By the way, when a curved board composite material is generally formed, various defects are likely to be formed at the bent portion, and countermeasures have conventionally been made. For example, a technique disclosed in Japanese Patent Application Laid-Open No. 2-17523 shown in FIG. 7 is known. In FIG. 7, the laminated prepreg 101 is placed on a mold 102, and the prepreg 10
1, a release film 103, a ventilation fiber 104, and a vacuum pack 105 are stacked in this order, and the inside of the vacuum pack 105 is subjected to pressure molding by evacuation, further pressurized by an autoclave, and heated and cured. It is. Then, the molding template 106 is inserted between the release film 103 and the ventilation fiber 104 to reduce the decrease in the thickness of the bent portion.
【０００３】また平面板複合材の成形では特開平４−４
１１１号公報の技術が知られている。これは成形型の材
質をグラファイトとし、オートクレーブ硬化過程で、プ
リプレグ積層体の層間のガスの吸引排出機能を改善し品
質改善を図るものである。[0003] In the molding of a flat plate composite material, Japanese Patent Laid-Open No.
The technology of Japanese Patent Publication No. 111 is known. This is intended to improve the quality by improving the function of sucking and discharging gas between layers of the prepreg laminate during the autoclave curing process by using graphite as the material of the mold.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、前述の
特開平２−１７５２３号公報のものにおいては、オート
クレーブで硬化時、缶内圧力を高めることにより真空パ
ック１０５は外部から加圧され、プリプレグ１０１には
図７に示す力Ｆが働く。これにより、硬化中にプリプレ
グ１０１の肉厚はＴ１からＴ２へ押圧され、屈曲部に沿
う方向繊維のプリプレグの屈曲外周部位は半径Ｒ１から
Ｒ２へと曲率が大きくなるため、余分なプリプレグが生
じ、これが図８に示すように屈曲外周部位にプリプレグ
繊維のしわ、うねりとなり強度低下を引き起こす、ある
いは所定の肉厚にならない等という問題点があった。However, in the above-mentioned Japanese Unexamined Patent Publication No. 2-17523, the vacuum pack 105 is externally pressurized by increasing the pressure in the can at the time of curing in an autoclave, and the prepreg 101 is pressed. Exerts a force F shown in FIG. As a result, the thickness of the prepreg 101 is pressed from T1 to T2 during curing, and the curvature of the prepreg of the directional fiber along the bent portion is increased from the radius R1 to R2, so that an extra prepreg is generated. As a result, as shown in FIG. 8, the prepreg fiber has wrinkles and undulations at the bent outer peripheral portion to cause a reduction in strength, or has a problem that a predetermined thickness is not obtained.
【０００５】また特開平４−４１１１号公報の平面板の
成形においても、オートクレーブによる加熱硬化過程
で、プリプレグの樹脂分の粘度低下により繊維が流動し
やすくなるため、プリプレグ肉厚が約５ｍｍ以上の厚さ
では流動する範囲が大きく、しわ、うねりが全面にわた
って発生し品質不良を生じる問題点があった。[0005] Also, in the molding of a flat plate disclosed in Japanese Patent Application Laid-Open No. 4-4111, the fibers tend to flow due to the decrease in the viscosity of the resin component of the prepreg during the heat curing process in an autoclave. The thickness has a problem that the range of flow is large, and wrinkles and undulations occur over the entire surface to cause poor quality.
【０００６】このような従来技術の問題点を解消するた
め、本発明は樹脂を含浸したプリプレグを素材とする複
合材の成形において、しわ、うねりの発生を防止する複
合材の成形装置および成形方法を提供することを目的と
する。In order to solve the problems of the prior art, the present invention provides a molding apparatus and a molding method of a composite material for preventing the generation of wrinkles and undulations in the molding of a composite material using a prepreg impregnated with a resin. The purpose is to provide.
【０００７】[0007]
【課題を解決するための手段】前述した目的を達成する
ため本発明のうちで請求項１記載の発明は、下型の上に
方向を変えて複数層の一方向繊維プリプレグを積層し、
このプリプレグの上に成形用上型板を重ね、この成形用
上型板の上に通気用織物を重ね、この通気用織物の上に
バッグフィルムを重ね、このバッグフィルムの内側を真
空引きすることによりプリプレグを加圧し、加熱して硬
化させる複合材の成形装置において、前記プリプレグを
拘止する拘止装置を前記下型の上に設けたことを特徴と
する。Means for Solving the Problems In order to achieve the above object, the invention according to claim 1 of the present invention is characterized in that a plurality of unidirectional fiber prepregs are laminated by changing the direction on a lower mold,
An upper mold plate is placed on the prepreg, a ventilation fabric is placed on the upper mold plate, a bag film is placed on the ventilation fabric, and the inside of the bag film is evacuated. In the composite molding apparatus for pressing and heating the prepreg to cure the prepreg, a restraining device for restraining the prepreg is provided on the lower mold.
【０００８】また請求項２記載の発明は、請求項１記載
の発明の構成のうち、屈曲部を有する下型の上に積層さ
れた上記一方向繊維プリプレグには前記屈曲部に沿う方
向に積層されたプリプレグが含まれており、上記拘止装
置は、前記下型に固定された張力板とこの張力板の上に
載置されてプリプレグを押圧する拘止板とを備え、前記
屈曲部に沿う方向に積層された前記プリプレグが前記拘
止装置に拘止されていることを特徴とする。According to a second aspect of the present invention, in the configuration of the first aspect of the present invention, the one-way fiber prepreg laminated on a lower mold having a bent portion is laminated in a direction along the bent portion. Prepreg is included, the detention device includes a tension plate fixed to the lower die and a detention plate placed on the tension plate and pressing the prepreg, The prepreg stacked in the direction along the direction is restrained by the restraining device.
【０００９】また請求項３記載の発明は、請求項１記載
の発明の構成のうち、平面板をなす下型の上に積層され
た上記一方向繊維プリプレグの中の特定方向繊維プリプ
レグを、前記平面板に固定された張力板とこの張力板の
上に置かれてプリプレグを押圧する拘止板とを備えた拘
止装置で拘止することを特徴とする。According to a third aspect of the present invention, in the configuration of the first aspect of the present invention, the specific directional fiber prepreg in the one-way fiber prepreg laminated on the lower mold forming a flat plate is formed by the above-mentioned method. The arresting device is characterized in that the arresting device is provided with a arresting device having a tension plate fixed to the flat plate and a arresting plate placed on the tension plate and pressing the prepreg.
【００１０】また請求項４記載の発明は、請求項１記載
の発明の構成のうち、上記拘止装置の張力板を、上記成
形用上型板の端部より３５ｍｍから６０ｍｍの範囲の位
置で上記下型の上に固定し、前記張力板の高さ寸法は、
プリプレグ肉厚をＴｍｍとするとき、１．７×Ｔｍｍに
することを特徴とする。According to a fourth aspect of the present invention, in the configuration of the first aspect, the tension plate of the restraining device is positioned at a position within a range of 35 mm to 60 mm from an end of the upper mold plate. Fixed on the lower mold, the height of the tension plate,
When the thickness of the prepreg is Tmm, the thickness is 1.7 × Tmm.
【００１１】また請求項５記載の発明は、下型の上に方
向を変えて複数層の一方向繊維プリプレグを積層し、こ
のプリプレグの上に成形用上型板を重ね、前記一方向繊
維プリプレグの中の特定方向繊維プリプレグを前記下型
の上に設けた拘止装置によって拘止し、前記成形用上型
板及び前記拘止装置の上に通気用織物を重ね、この通気
用織物の上にバッグフィルムを重ね、このバッグフィル
ムの内側を真空引きしてプリプレグを加圧した状態下
で、加熱して硬化させることを特徴とする。According to a fifth aspect of the present invention, the unidirectional fiber prepreg is formed by laminating a plurality of layers of unidirectional fiber prepregs on the lower mold while changing the direction thereof, and superimposing a molding upper mold plate on the prepreg. The specific directional fiber prepreg is restrained by a restraining device provided on the lower mold, and a ventilation fabric is stacked on the upper mold plate and the restraining device. The prepreg is heated and cured while the inside of the bag film is evacuated and the prepreg is pressed.
【００１２】すなわち本発明では曲面板複合材の屈曲部
位、あるいは約５ｍｍ以上の厚さの平面板複合材全面
の、しわ、うねりが発生する特定方向繊維プリプレグ端
部をプリプレグ拘止装置により拘止し、加圧によって前
記特定方向繊維プリプレグの繊維に張力を生じさせて繊
維を引っ張ることにより、プリプレグのしわ、うねりの
発生を防止するものである。That is, in the present invention, the end portion of the fiber prepreg in the specific direction where wrinkles and undulations occur in the bent portion of the curved plate composite material or the entire surface of the flat plate composite material having a thickness of about 5 mm or more is restrained by the prepreg restraining device. Then, by applying tension to the fibers of the specific direction fiber prepreg by applying pressure and pulling the fibers, wrinkles and undulations of the prepreg are prevented.
【００１３】[0013]
【発明の実施の形態】以下、本発明の第１の実施の形態
を図１〜図４に基づき説明する。第１の実施の形態は下
型が曲面をなす形状のもので、図１は曲面板複合材成形
装置のプリプレグ拘止装置取付状態を示し、図２はプリ
プレグ拘止装置の斜視図、図３は成形時の装置の横断面
図であり、図４は成形時のプリプレグ端部の詳細断面図
である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. In the first embodiment, the lower die has a curved surface. FIG. 1 shows a state in which a prepreg restraining device is attached to a curved plate composite material forming apparatus. FIG. 2 is a perspective view of the prepreg restraining device. Is a cross-sectional view of the apparatus at the time of molding, and FIG. 4 is a detailed sectional view of an end portion of the prepreg at the time of molding.
【００１４】図１はベース１の上に下型板２を重ね、図
示しないプリプレグをセットしてプリプレグ拘止装置５
を固定したものである。図２はプリプレグ拘止装置５を
示し、このプリプレグ拘止装置５は断面Ｌ字型形状の張
力板６と、平板状の拘止板７により成る。図３において
ベース１の上に屈曲部Ａを有する下型板２を重ね、下型
板２の上に予め樹脂を含浸してあるプリプレグ３を重ね
る。プリプレグ３は複数層あり一方向繊維のプリプレグ
を繊維の向きを変えて積層する。すなわち屈曲部Ａに沿
う方向（図１でＸ方向）繊維のプリプレグを、屈曲部Ａ
に沿う方向以外の方向繊維を有するプリプレグの積層端
部Ｂより延長する。プリプレグ３の上に成形用上型板４
を重ねる。この成形用上型板４の端部は屈曲部Ａに沿う
方向以外の方向繊維のプリプレグの積層端部Ｂと同じ位
置まで延びている。FIG. 1 shows a prepreg holding device 5 in which a lower mold plate 2 is placed on a base 1 and a prepreg (not shown) is set.
Is fixed. FIG. 2 shows a prepreg restraining device 5, which comprises a tension plate 6 having an L-shaped cross section and a flat restraining plate 7. In FIG. 3, a lower mold plate 2 having a bent portion A is superimposed on a base 1, and a prepreg 3 previously impregnated with a resin is superimposed on the lower mold plate 2. The prepreg 3 has a plurality of layers and unidirectional fiber prepregs are laminated while changing the direction of the fibers. That is, the fiber prepreg in the direction along the bent portion A (the X direction in FIG.
Extending from the lamination end B of the prepreg having fibers in a direction other than the direction along. Upper mold plate 4 for molding on prepreg 3
Layer. The end of the upper mold plate 4 extends to the same position as the laminated end B of the fiber prepreg in a direction other than the direction along the bent portion A.
【００１５】次いで屈曲部Ａに沿う方向繊維のプリプレ
グ３の端部を引っ張り、プリプレグ３にたるみがない状
態にして、下型板２の上に接着剤等で固定されたプリプ
レグ拘止装置５を構成する張力板６と拘止板７により張
力板６の切欠き部で屈曲部Ａに沿う方向繊維のプリプレ
グの端部を挟持する。拘止板７はプリプレグ３のたるみ
がない状態にする重さを有すれば十分で、余り重くする
必要はなく、また張力板６への固定も張力板６から落下
しない程度で良く、ねじ等で強く締め付ける必要はな
い。Next, the end of the prepreg 3 of the directional fiber along the bent portion A is pulled to make the prepreg 3 slack-free, and the prepreg restraining device 5 fixed on the lower mold plate 2 with an adhesive or the like is used. The notch portion of the tension plate 6 sandwiches the end of the prepreg of the directional fiber along the bent portion A by the tension plate 6 and the restraint plate 7. It is sufficient that the restraint plate 7 has a weight enough to prevent the prepreg 3 from sagging, and does not need to be too heavy. Further, the fixation to the tension plate 6 may be such that it does not drop from the tension plate 6. There is no need to tighten strongly.
【００１６】ついで成形用上型板４、両端の張力板６お
よび拘止板７の全体を覆って通気用織物８を重ね、通気
用織物８の上にバッグフィルム９を重ねる。バッグフィ
ルム９の縁部と下型板２の間にはシーラント１０を介装
し、バッグフィルム９内側の機密性が保たれるようにす
る。なお、バッグフィルム９は成形用上型板４の端部と
プリプレグ拘止装置５の間の部分に少ししわを作ってお
く。これに真空ポンプ（図示せず）からのホース１１を
接続し、真空引きを行いプリプレグ３を押圧した状態と
し、次いでオートクレーブ（図示せず）で加圧、 加熱し
て硬化成形する。Next, the ventilation fabric 8 is overlaid so as to cover the entire upper mold plate 4, the tension plates 6 at both ends and the restraining plate 7, and the bag film 9 is overlaid on the ventilation fabric 8. A sealant 10 is interposed between the edge of the bag film 9 and the lower mold plate 2 so that the airtightness inside the bag film 9 is maintained. The bag film 9 is slightly wrinkled at a portion between the end of the upper mold plate 4 and the prepreg restraining device 5. A hose 11 from a vacuum pump (not shown) is connected to the prepreg 3, and the prepreg 3 is pressed by applying a vacuum. Then, the prepreg 3 is pressurized and heated by an autoclave (not shown) to be cured.
【００１７】このような成形装置にプリプレグ３をセッ
トし、オートクレーブ硬化過程で缶内圧力を高めると、
プリプレグ３には図３の力Ｆが作用する。プリプレグ３
を押圧し所定の肉厚に成形するとともに、屈曲部Ａに沿
う方向繊維のプリプレグ延長部（図４においてＣの部
分）は、屈曲部Ａに沿う方向以外の方向繊維のプリプレ
グの積層端部Ｂとプリプレグ拘止装置５の間で、図４に
示すように下型板２側に湾曲し、屈曲部Ａに沿う方向繊
維のプリプレグに張力が付与される。When the prepreg 3 is set in such a molding apparatus and the pressure inside the can is increased during the autoclave curing process,
A force F shown in FIG. Prepreg 3
Is pressed to form a predetermined thickness, and the prepreg extension portion of the directional fiber along the bent portion A (portion C in FIG. 4) is a laminated end portion B of the directional fiber prepreg other than the direction along the bent portion A. As shown in FIG. 4, a tension is applied to the prepreg of the directional fiber that curves toward the lower mold plate 2 and extends along the bent portion A between the prepreg and the prepreg restraining device 5.
【００１８】すなわち、オートクレーブ硬化過程でプリ
プレグ３の肉厚がＴ１からＴ２に薄くなるため、プリプ
レグ３の屈曲部Ａ外周部位の曲率が大きくなり、屈曲部
Ａ外周部位の屈曲部Ａに沿う方向繊維のプリプレグに余
剰繊維が生じる。しかし前述の力Ｆが屈曲部Ａに沿う方
向以外の方向繊維のプリプレグの積層端部Ｂとプリプレ
グ拘止装置５の間で、余剰繊維の延長部を下型板２の方
向に更に湾曲させ張力を付与し、屈曲部Ａに沿う方向に
引っ張るため、プリプレグ３の屈曲部位のしわ、うねり
の発生を防止している。That is, since the thickness of the prepreg 3 decreases from T1 to T2 during the autoclave curing process, the curvature of the outer peripheral portion of the bent portion A of the prepreg 3 increases, and the directional fiber along the bent portion A of the outer peripheral portion of the bent portion A Surplus fibers are generated in the prepreg. However, the above-mentioned force F is applied in a direction other than the direction along the bent portion A. Between the laminated end portion B of the prepreg of the fiber and the prepreg restraining device 5, the extended portion of the excess fiber is further bent in the direction of the lower mold plate 2 and tension is applied. , And the wire is pulled in the direction along the bent portion A, thereby preventing wrinkles and undulations at the bent portion of the prepreg 3.
【００１９】次に第２の実施の形態である、平面板複合
材の成形装置を図５、図６に基づき説明する。図５は横
断面、図６はそのプリプレグ端部の拡大断面図を示す。
第１の実施の形態の屈曲部Ａを有する下型板２および成
形用上型板４に代えて、図５では平面板複合材の成形用
に平板状の下型板２１と成形用上型板４１を用いるよう
にしたものである。なお、その他の構成については、前
述第１の実施の形態と同一となっており、その作用も約
５ｍｍ以上の厚さの平面板複合材において、オートクレ
ーブ硬化過程における加熱によりプリプレグの樹脂分の
粘度低下による繊維の流動化に対し、オートクレーブ加
圧時プリプレグ拘止装置により、しわ、うねりが発生す
る繊維に張力を付与して、しわ、うねりの発生を防止す
るものであり、第１の実施の形態と同一作用である。Next, a flat plate composite material forming apparatus according to a second embodiment will be described with reference to FIGS. FIG. 5 is a cross-sectional view, and FIG. 6 is an enlarged cross-sectional view of the prepreg end.
Instead of the lower mold plate 2 having the bent portion A and the upper mold plate 4 of the first embodiment, in FIG. 5, a flat lower mold plate 21 and a molding upper mold are formed for forming a flat plate composite material. The plate 41 is used. The rest of the structure is the same as that of the first embodiment, and the effect is also that in a flat plate composite material having a thickness of about 5 mm or more, the viscosity of the resin component of the prepreg is increased by heating in the autoclave curing process. With respect to the fluidization of the fibers due to the decrease, the prepreg restraint device at the time of pressurizing the autoclave applies tension to the fibers that generate wrinkles and undulations, thereby preventing the generation of wrinkles and undulations. It is the same operation as the form.
【００２０】なお、本発明の実験において、プリプレグ
拘止装置５の張力板６を下型板２、２１に固定する場
合、積層端部Ｂからの位置寸法Ｃと張力板６の高さ寸法
Ｄは、図４および図６に示す通りで以下の寸法が好まし
い。これらの数値によりコンパクトで作業も容易な拘止
装置が得られる。 ３５ｍｍ≦Ｃ≦６０ｍｍ Ｄ＝１．７×Ｔ （但しＴ：プリプレグ肉厚ｍｍ）In the experiment of the present invention, when the tension plate 6 of the prepreg restraining device 5 is fixed to the lower mold plates 2 and 21, the position dimension C from the lamination end B and the height dimension D of the tension plate 6 are set. Are preferably the following dimensions as shown in FIGS. These values provide a compact and easy-to-operate detention device. 35 mm ≦ C ≦ 60 mm D = 1.7 × T (where T: prepreg thickness mm)
【００２１】[0021]
【発明の効果】本発明による曲面板複合材および平面板
複合材の成形装置および成形方法は以上説明したよう
に、特定方向繊維のプリプレグを拘止し張力を付与する
プリプレグ拘止装置を設け、オートクレーブ硬化過程で
缶内圧力を加圧時、プリプレグ繊維の張力を高めプリプ
レグ繊維のしわ、うねりの発生を防止し、また所定の肉
厚に成形することが可能になり良好な品質の複合材を提
供することができる。As described above, the molding apparatus and the molding method of the curved plate composite material and the flat plate composite material according to the present invention are provided with a prepreg restraining device for restraining a prepreg of a specific direction fiber and applying a tension. When the pressure inside the can is increased during the autoclave curing process, the tension of the prepreg fiber is increased to prevent wrinkles and undulations of the prepreg fiber, and it is possible to mold the prepreg fiber to a predetermined thickness. Can be provided.
【図１】本発明に係る第１の実施の形態のプリプレグ拘
止装置取付状態を示す斜視図である。FIG. 1 is a perspective view showing a prepreg restraining device mounted state according to a first embodiment of the present invention.
【図２】図１の装置のプリプレグ拘止装置の斜視図であ
る。FIG. 2 is a perspective view of a prepreg restraint device of the device of FIG. 1;
【図３】第１の実施の形態の成形時の横断面図である。FIG. 3 is a cross-sectional view of the first embodiment during molding.
【図４】図３のプリプレグ端部の詳細断面図である。FIG. 4 is a detailed sectional view of an end portion of the prepreg of FIG. 3;
【図５】本発明に係る第２の実施の形態の横断面図であ
る。FIG. 5 is a cross-sectional view of a second embodiment according to the present invention.
【図６】図５のプリプレグ端部の詳細断面図である。FIG. 6 is a detailed sectional view of an end portion of the prepreg of FIG. 5;
【図７】従来の成形装置の横断面図である。FIG. 7 is a cross-sectional view of a conventional molding apparatus.
【図８】図７の屈曲部の詳細断面図である。FIG. 8 is a detailed sectional view of a bent portion of FIG. 7;
１ ベース ２、２１ 下型板 ３ プリプレグ ４、４１ 成形用上型板 ５ プリプレグ拘止装置 ６ 張力板 ７ 拘止板 ８ 通気用織物 ９ バッグフィルム １０ シーラント １１ ホース DESCRIPTION OF SYMBOLS 1 Base 2, 21 Lower mold plate 3 Prepreg 4, 41 Upper molding plate 5 Prepreg restraint device 6 Tension plate 7 Restraint plate 8 Vent fabric 9 Bag film 10 Sealant 11 Hose
Claims (5)
維プリプレグを積層し、このプリプレグの上に成形用上
型板を重ね、この成形用上型板の上に通気用織物を重
ね、この通気用織物の上にバッグフィルムを重ね、この
バッグフィルムの内側を真空引きすることによりプリプ
レグを加圧し、加熱して硬化させる複合材の成形装置に
おいて、前記プリプレグを拘止する拘止装置を前記下型
の上に設けたことを特徴とする複合材の成形装置。1. A plurality of unidirectional fiber prepregs are laminated on a lower mold by changing directions, an upper mold plate is stacked on the prepreg, and a ventilation fabric is placed on the upper mold plate. The prepreg is pressurized by evacuating the inside of the bag film, and the prepreg is heated and cured by evacuation of the inside of the bag film. An apparatus for forming a composite material, wherein a stopping device is provided on the lower die.
一方向繊維プリプレグには前記屈曲部に沿う方向に積層
されたプリプレグが含まれており、上記拘止装置は、前
記下型に固定された張力板とこの張力板の上に載置され
てプリプレグを押圧する拘止板とを備え、前記屈曲部に
沿う方向に積層された前記プリプレグが前記拘止装置に
拘止されていることを特徴とする請求項１記載の複合材
の成形装置。2. The unidirectional fiber prepreg laminated on a lower mold having a bent portion includes a prepreg laminated in a direction along the bent portion. A tension plate fixed to the tension plate and a restraining plate placed on the tension plate and pressing the prepreg, wherein the prepreg stacked in the direction along the bending portion is restrained by the restraining device. The composite molding apparatus according to claim 1, wherein:
方向繊維プリプレグの中の特定方向繊維プリプレグを、
前記平面板に固定された張力板とこの張力板の上に置か
れてプリプレグを押圧する拘止板とを備えた拘止装置で
拘止することを特徴とする請求項１記載の複合材の成形
装置。3. A directional fiber prepreg in the unidirectional fiber prepreg laminated on a lower die forming a flat plate,
2. The composite material according to claim 1, wherein the restraint device includes a tension plate fixed to the flat plate and a restraint plate placed on the tension plate and pressing the prepreg. Molding equipment.
板の端部より３５ｍｍから６０ｍｍの範囲の位置で上記
下型の上に固定し、前記張力板の高さ寸法は、プリプレ
グ肉厚をＴｍｍとするとき、１．７×Ｔｍｍにすること
を特徴とする請求項１乃至３のいずれかに記載の複合材
の成形装置。4. A tension plate of the restraining device is fixed on the lower die at a position within a range of 35 mm to 60 mm from an end of the upper die plate for molding, and a height dimension of the tension plate is: The composite molding apparatus according to any one of claims 1 to 3, wherein the thickness of the prepreg is set to 1.7 x Tmm when the prepreg has a thickness of Tmm.
維プリプレグを積層し、このプリプレグの上に成形用上
型板を重ね、前記一方向繊維プリプレグの中の特定方向
繊維プリプレグを前記下型の上に設けた拘止装置によっ
て拘止し、前記成形用上型板及び前記拘止装置の上に通
気用織物を重ね、この通気用織物の上にバッグフィルム
を重ね、このバッグフィルムの内側を真空引きしてプリ
プレグを加圧した状態下で、加熱して硬化させることを
特徴とする複合材の成形方法。5. A plurality of unidirectional fiber prepregs are laminated on a lower mold in different directions, and an upper mold plate for molding is laminated on the prepreg, and a specific direction fiber prepreg in the unidirectional fiber prepreg is provided. Is restrained by a restraining device provided on the lower mold, an air-permeable fabric is stacked on the upper mold plate and the restraining device, and a bag film is stacked on the air-permeable fabric. A method for forming a composite material, wherein the inside of a bag film is evacuated and the prepreg is heated and cured under pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12146997A JP3815848B2 (en) | 1997-04-25 | 1997-04-25 | Composite material molding apparatus and molding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12146997A JP3815848B2 (en) | 1997-04-25 | 1997-04-25 | Composite material molding apparatus and molding method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10296864A true JPH10296864A (en) | 1998-11-10 |
| JP3815848B2 JP3815848B2 (en) | 2006-08-30 |
Family
ID=14811930
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12146997A Expired - Fee Related JP3815848B2 (en) | 1997-04-25 | 1997-04-25 | Composite material molding apparatus and molding method |
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| Country | Link |
|---|---|
| JP (1) | JP3815848B2 (en) |
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| WO2008070621A2 (en) | 2006-12-04 | 2008-06-12 | The Boeing Company | Tensioning devices and methods for composite structures |
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| CN103934944A (en) * | 2013-01-21 | 2014-07-23 | 汉达精密电子(昆山)有限公司 | Appearance decoration effect processing method for carbon fibers and product thereof |
| KR20150042581A (en) | 2013-10-11 | 2015-04-21 | 주식회사 에스지테크 | Using prepreg composites bar and its manufacturing method |
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