CN106799851B - The moulding manufacture method of composite material hat Material Stiffened Panel based on piddler technology - Google Patents
The moulding manufacture method of composite material hat Material Stiffened Panel based on piddler technology Download PDFInfo
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- CN106799851B CN106799851B CN201611225077.4A CN201611225077A CN106799851B CN 106799851 B CN106799851 B CN 106799851B CN 201611225077 A CN201611225077 A CN 201611225077A CN 106799851 B CN106799851 B CN 106799851B
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- CN
- China
- Prior art keywords
- hat
- piddler
- rubber tube
- siding
- stiffened panel
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
- B29C70/44—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
- B29C70/542—Placing or positioning the reinforcement in a covering or packaging element before or during moulding, e.g. drawing in a sleeve
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
- B29L2007/002—Panels; Plates; Sheets
Abstract
The moulding manufacture method of composite material hat Material Stiffened Panel of the present invention offer based on piddler technology, it include: the hat reinforcement slot inner surface release agent application hat stiffener that perhaps then paving release cloth repaves patch hat stiffener or placement is cured in siding male mould forming mold；Release agent application is placed in the groove of hat stiffener or winds the rubber tube of release cloth, the internal support being adapted with its shape is placed in rubber tube, the tubular vacuum bag of both ends open is placed between internal support and rubber tube, and rubber tube is fixed on siding male mould forming mold；Filler is filled in the empty region of hat stiffener；Covering is spread out using automatic fiber placement equipment in the outer surface of molding die；A layer process cover board is covered in the outer surface of covering；It beats vacuum bag and vacuumizes, then temperature-pressure, curing molding；After cooling, siding male mould forming mold is sloughed, and extract rubber tube out, obtains composite material hat Material Stiffened Panel.
Description
Technical field
The present invention relates to the moulding manufacture methods of field of aerospace technology composite element, more particularly, to one
The moulding manufacture method of composite material hat Material Stiffened Panel of the kind based on piddler technology.
Background technique
Composite material hat Material Stiffened Panel structure is made of hat muscle and covering, torsional stability and buckling with higher
Intensity is therefore widely used on aircaft configuration, such as fuselage wallboard, pressure chamber etc..Using high mechanization and digitlization
Automatic fiber placement technology manufacture composite material hat Material Stiffened Panel, have that manufacture efficiency is high, product quality consistency is good, material is unrestrained
The low advantage of the amount of expense is particularly suitable for manufacture tubular or other complex components.
Hat Material Stiffened Panel can be divided into foam Material Stiffened Panel and hollow structure hat Material Stiffened Panel by product form.Foam adds
Foam machining difficulty is big and easily damaged in muscle siding, while increasing construction weight.The forming core of hollow structure hat Material Stiffened Panel
Mould includes metal core die and rubber mandrel.Material Stiffened Panel is formed using metal core die, metal core die is at high cost, weight is big, simultaneously
Complex curvatures siding can not be demoulded.Material Stiffened Panel is formed using rubber mandrel, it is total that solid rubber core model not can guarantee siding
Briquetting pressure is identical as external solidifying pressure inside hat Material Stiffened Panel product when curing molding, it is difficult to meet composite element
Internal pressurization requirement in forming process.Hollow rubber core model can guarantee briquetting pressure and outside inside hat Material Stiffened Panel product
Solidifying pressure is identical, but uses the formpiston with hat reinforcement slot paved with covering using the manufacture of piddler technique siding
Scheme, hollow rubber core model can not support piddler head pressure, and the covering for easily leading to Material Stiffened Panel hollow part sink, and not can guarantee just
True shape.In addition, mold is pivoted during piddler, covering piddler is influenced to avoid hat reinforcement and core model movement,
Core model must be fixed on mold well.
Therefore, in order to guarantee to be normally carried out using covering piddler operation when formpiston manufacture, and core model can guarantee that siding is solid
Briquetting pressure when change, and realize the smooth demoulding of core model, do not increase construction weight, needs to develop a kind of based on piddler technology
Composite material hat Material Stiffened Panel moulding manufacture method, to improve traditional process.
Summary of the invention
In order to solve the above-mentioned problems in the prior art, the present invention provides a kind of composite material based on piddler technology
The moulding manufacture method of hat Material Stiffened Panel.
According to the present invention, the moulding manufacture method the following steps are included:
In the hat reinforcement slot inner surface release agent application or paving release cloth of siding male mould forming mold, then repave
Patch hat stiffener places the hat stiffener being cured；
Release agent application is placed in the groove of the hat stiffener or winds the rubber tube of release cloth, wherein described
The internal support being adapted with its shape is placed in rubber tube, places both ends between the internal support and the rubber tube
The tubular vacuum bag of opening, and the rubber tube with internal support is fixed on the siding male mould forming mold；
Filler is filled in the empty region of the hat stiffener；
Covering is spread out using automatic fiber placement equipment in the outer surface of the siding male mould forming mold；
A layer process cover board is covered in the outer surface of the covering；
It beats vacuum bag and vacuumizes, then temperature-pressure, curing molding；
After cooling, the siding male mould forming mold is sloughed, and extract rubber tube out, obtains composite material hat reinforcement wall
Plate.
Wherein, the material of the hat stiffener is fibre reinforced fabric or glass fabric.
Wherein, the material of the hat stiffener is fibre reinforced one-way tape or glass fibre one-way tape.
Wherein, the material of the internal support is rubber, metal, resin, foam or timber.
Wherein, circular hole, built-in rope or rod piece are opened among the internal support, are fixed by binding or magnetic force.
Wherein, the filler is one-way tape, unidirectional fibre, 3 D weaving preforming material, epoxy resin or adhesive.
Wherein, piddler material is carbon fibre reinforced composite.
Wherein, the material of the technique cover board is the combination or hard rubber of aluminium, copper, fabric and rubber.
Wherein, temperature-pressure is carried out using autoclave, baking oven, electric blanket.
Wherein, before beating vacuum bag and vacuumizing, the internal support is extracted out from the rubber tube；Alternatively, can
Internal support is not taken out in selection, takes out after product curing molding.
Compared with prior art, the invention has the following advantages that
1) siding is formed for formpiston manufacture co-curing, the characteristics of compared to hollow rubber core model rigidity low no Faville shape, this
The rubber tube with internal support that invention uses has enough rigidity, can bear pressure when automatic fiber placement head operation,
Cavity shape when maintaining covering paved between hat stiffener and covering, avoids skin morph；
2) compared to solid rubber core model not can guarantee hat ribbed inner surface it is identical with the solidifying pressure of skin-surface lack
Point, the tubular vacuum bag both ends that the present invention uses are connected to autoclave atmospheric environment, and using rubber tube as annular gasket, will be consolidated
Change pressure and be transferred to hat stiffener and covering inner surface, meets the internal pressurization requirement in composite element forming process；
3) pipe is placed in the disadvantage low compared to the easy gas leakage service life of hollow rubber air bag, the rubber tube inside that the present invention uses
For shape vacuum bag to guarantee air-tightness, rubber tube, without air-tightness requirement, has service life high, at low cost is excellent as annular gasket
Point；
4) forming method can be not only used for being glued co-curing molding, and can be used for co-curing molding, have versatility.
Detailed description of the invention
Other feature and advantage of the invention will be more preferable by the preferred embodiment being described in detail below in conjunction with attached drawing
Ground understands, in which:
Fig. 1 is the viewgraph of cross-section of the composite material hat Material Stiffened Panel of the invention in piddler process；
Fig. 2A -2B is the viewgraph of cross-section of the composite material hat Material Stiffened Panel of the invention in solidification process；
Fig. 3 is the schematic diagram of the rubber tube with internal support with varying cross-section shape, is omitted down in figure
Fillet.
Specific embodiment
In the following detailed description of the preferred embodiment, reference is constituted to the appended attached drawing of present invention a part.Institute
Attached attached drawing, which has been illustrated by way of example, can be realized specific embodiment.Exemplary embodiment is not intended to
Exhaustive all embodiments according to the present invention.It is appreciated that without departing from the scope of the present invention, can use other
Embodiment can also carry out the modification of structure or logic.
The first step, as shown in Figure 1, first siding male mould forming mold 1 hat reinforcement slot inner surface release agent application or
Person's paving release cloth, then manual paving goes out hat stiffener 2 again, or places the hat stiffener 2 being cured.Hat reinforcement
The preferred fibre reinforced one-way tape of the material of part 2, can also be fibre reinforced fabric, glass fibre one-way tape and fabric or its
Its suitable composite material tape and fabric.
Rubber tube 3 is coated release agent or winding release cloth, the preferred tetrafluoro cloth of release cloth can also be it by second step
Its suitable release materials.One layer of crack arrest laying can be wound again outside rubber tube 3, and rubber tube 3 is then placed on hat reinforcement slot
It is interior.The internal support 4 being adapted with its shape is wherein placed in rubber tube 3, is placed between internal support 4 and rubber tube 3
The tubular vacuum bag 5 of both ends open.Internal support 4 provides enough rigidity when paved for covering 8 described below, avoids covering
Skin 8 generates big deformation when paved.The material preferred rubber of internal support 4, can also be metal, resin, foam, timber or
Other suitable materials.
The section form of rubber tube 3 includes and is not limited to section form shown in Fig. 3, internal support 4 preferably with rubber
Circular hole, built-in rope or rod piece are opened in the identical ladder shape part of 3 inner surface configuration of pipe, centre.It will be with inside by binding or magnetic force
The rubber tube 3 of supporting element 4 is fixed on siding male mould forming mold 1, core model when avoiding siding male mould forming 1 rotary motion of mold
It is mobile.
Third step fills filler in the empty region 6 of hat stiffener 2.Specifically, in rubber tube 3, hat stiffener 2
Triangle empty region 6 between covering 8 described below fills filler, and the one-way tape which preferably rolls can also be
Unidirectional fibre, 3 D weaving preforming material, epoxy resin, adhesive or other suitable materials.
4th step spreads out the illiteracy for adapting to required shape in 1 outer surface of siding male mould forming mold using automatic fiber placement equipment
Skin 8, piddler material can select carbon fibre reinforced composite.The molding covering 8 of piddler can be plate, single-curvature or complexity
The tubular or bulk of curvature, high degree of automation can guarantee very high product quality consistency.Further, implement as shown in figure 1
It, can paving reinforcement laying 7 between hat stiffener 2 and covering 8 shown in example.
5th step covers a layer process cover board 9 in 8 outer surface of covering as shown in Figure 2 A, after molding to improve covering 8
Surface quality.Combination or the other conjunctions of the aluminium, copper, hard rubber, fabric and rubber of the preferred thin thickness of the material of technique cover board 9
Suitable material.
6th step extracts internal support 4 out, as shown in Figure 2 B from rubber tube 3；The step is option, can be not firm
The operation is applied, internal support 4 can not be taken out.5 both ends of tubular vacuum bag are connected to autoclave atmospheric environment, and with rubber tube
3 are used as annular gasket, and solidifying pressure is transferred to 8 inner surface of hat stiffener 2 and covering, meets composite element and formed
Internal pressurization requirement in journey.
7th step is beaten vacuum bag 10 to entire siding and is vacuumized, then temperature-pressure, curing molding.Temperature-pressure is set
Standby preferred autoclave, further comprises the available devices such as baking oven, electric blanket.
8th step sloughs siding male mould forming mold 1, and extract rubber tube 3 out, obtains composite material hat and add after cooling
Muscle siding.If the 6th step is not carried out, internal support 4 and rubber tube 3 need to be taken out together, obtain composite material hat reinforcement
Siding.
Moulding manufacture method according to the present invention is suitable for being glued co-curing and the molding of co-curing two ways, wherein solid altogether
Chemical conversion type has more cost advantage, without extra mold.The molding hat Material Stiffened Panel of co-curing, reduces rib or covering is first
The cured cost of row to significantly reduce manufacturing cost, and has no apparent interface after forming, mentions between covering and rib
The high integrated carrying ability of component, and do not increase additional weight.
The technology contents and technical characterstic of specific embodiments of the present invention are had revealed that above, it being understood, however, that in this hair
Under bright creative ideas, those skilled in the art can be to various features disclosed above and the feature not being explicitly illustrated herein
Combination make various changes and improve, but belong to protection scope of the present invention.The description of above-described embodiment be exemplary and
It is not limiting, protection scope of the present invention is determined by claim.
Claims (9)
1. the moulding manufacture method of the composite material hat Material Stiffened Panel based on piddler technology, which is characterized in that the molding system
Make method the following steps are included:
In the hat reinforcement slot inner surface release agent application or paving release cloth of siding male mould forming mold (1), then repave
Patch hat stiffener (2) places the hat stiffener (2) being cured；
Release agent application is placed in the groove of the hat stiffener (2) or winds the rubber tube (3) of release cloth, wherein institute
State the internal support (4) placed in rubber tube (3) and be adapted with its shape, the internal support (4) and the rubber tube
(3) the tubular vacuum bag (5) placing both ends open between and being connected to atmospheric environment, and the rubber of internal support (4) will be had
Sebific duct (3) is fixed on the siding male mould forming mold (1)；
Filler is filled in the empty region (6) of the hat stiffener (2)；
Covering (8) are spread out using automatic fiber placement equipment in the outer surface of the siding male mould forming mold (1)；
A layer process cover board (9) is covered in the outer surface of the covering (8)；
From the extraction internal support (4) in the rubber tube (3)；
Vacuum bag (10) is beaten to entire siding and is vacuumized, then temperature-pressure, curing molding；
After cooling, the siding male mould forming mold (1) is sloughed, and extract the rubber tube (3) out, obtain composite material hat and add
Muscle siding.
2. the moulding manufacture method of the composite material hat Material Stiffened Panel according to claim 1 based on piddler technology,
It is characterized in that, the material of the hat stiffener (2) is fibre reinforced fabric or glass fabric.
3. the moulding manufacture method of the composite material hat Material Stiffened Panel according to claim 1 based on piddler technology,
It is characterized in that, the material of the hat stiffener (2) is fibre reinforced one-way tape or glass fibre one-way tape.
4. the moulding manufacture method of the composite material hat Material Stiffened Panel according to claim 1 based on piddler technology,
It is characterized in that, the material of the internal support (4) is rubber, metal, resin, foam or timber.
5. the moulding manufacture method of the composite material hat Material Stiffened Panel according to claim 1 based on piddler technology,
It is characterized in that, opens circular hole, built-in rope or rod piece among the internal support (4), it will be with inside by binding or magnetic force
The rubber tube (3) of supporting element (4) is fixed on siding male mould forming mold (1).
6. the moulding manufacture method of the composite material hat Material Stiffened Panel according to claim 1 based on piddler technology,
It is characterized in that, the filler is one-way tape, unidirectional fibre, 3 D weaving preforming material, epoxy resin or adhesive.
7. the moulding manufacture method of the composite material hat Material Stiffened Panel according to claim 1 based on piddler technology,
It is characterized in that, piddler material is carbon fibre reinforced composite.
8. the moulding manufacture method of the composite material hat Material Stiffened Panel according to claim 1 based on piddler technology,
It is characterized in that, the material of the technique cover board (9) is the combination or hard rubber of aluminium, copper, fabric and rubber.
9. the moulding manufacture method of the composite material hat Material Stiffened Panel according to claim 1 based on piddler technology,
It is characterized in that, temperature-pressure equipment is autoclave, or uses baking oven, electric blanket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201611225077.4A CN106799851B (en) | 2016-12-27 | 2016-12-27 | The moulding manufacture method of composite material hat Material Stiffened Panel based on piddler technology |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611225077.4A CN106799851B (en) | 2016-12-27 | 2016-12-27 | The moulding manufacture method of composite material hat Material Stiffened Panel based on piddler technology |
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| CN106799851A CN106799851A (en) | 2017-06-06 |
| CN106799851B true CN106799851B (en) | 2019-07-30 |
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| ES2954328T3 (en) * | 2017-07-25 | 2023-11-21 | Subaru Corp | Composite Material Molding Template and Composite Material Molding Method |
| CN108438199A (en) * | 2018-03-23 | 2018-08-24 | 太原科技大学 | A kind of composite material reinforcer improving aircraft skin bearing capacity |
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| CN110757830B (en) * | 2018-07-26 | 2022-07-26 | 中国商用飞机有限责任公司 | Thermal diaphragm forming method for hat-shaped stringer |
| CN109551830A (en) * | 2018-11-07 | 2019-04-02 | 中国航空工业集团公司西安飞机设计研究所 | Composite Panels |
| CN111284036A (en) * | 2018-12-07 | 2020-06-16 | 中航贵州飞机有限责任公司 | Co-curing forming method of composite material wall plate with hat-shaped ribs for unmanned aerial vehicle |
| CN110497626A (en) * | 2019-08-08 | 2019-11-26 | 江苏恒神股份有限公司 | A kind of moulding manufacture method of PMI foam layer shape for hat rib reinforced composite material part |
| CN113021938B (en) * | 2019-12-09 | 2023-02-21 | 上海飞机制造有限公司 | Forming device and forming process for hat-shaped stringer stiffened wallboard made of composite material |
| CN112265288B (en) * | 2020-09-02 | 2022-09-02 | 长春长光宇航复合材料有限公司 | Preparation method of single-side reinforced structure carbon fiber composite material plate |
| CN112477190A (en) * | 2020-09-30 | 2021-03-12 | 浙江大学 | Integrated manufacturing process for hat-shaped stringer composite material wallboard |
| CN112659418B (en) * | 2020-11-23 | 2022-09-23 | 航天特种材料及工艺技术研究所 | Integrated forming die and manufacturing method for composite material curved surface stiffened wall plate |
| CN113524722A (en) * | 2021-07-27 | 2021-10-22 | 中航西安飞机工业集团股份有限公司 | Composite material hat-shaped reinforced wall plate VARI forming resin flow infiltration device and method |
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