CN106799851A - Method for forming and manufacturing composite material hat-shaped reinforced wall plate based on filament laying technology - Google Patents
Method for forming and manufacturing composite material hat-shaped reinforced wall plate based on filament laying technology Download PDFInfo
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- CN106799851A CN106799851A CN201611225077.4A CN201611225077A CN106799851A CN 106799851 A CN106799851 A CN 106799851A CN 201611225077 A CN201611225077 A CN 201611225077A CN 106799851 A CN106799851 A CN 106799851A
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- Prior art keywords
- hat
- rubber tube
- piddler
- manufacture method
- stiffened panel
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- 239000002131 composite material Substances 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- 238000005516 engineering process Methods 0.000 title claims abstract description 20
- 239000005060 rubber Substances 0.000 claims abstract description 51
- 239000004744 fabric Substances 0.000 claims abstract description 20
- 230000002787 reinforcement Effects 0.000 claims abstract description 15
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 8
- 239000000945 filler Substances 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 49
- 238000000465 moulding Methods 0.000 claims description 23
- 239000003351 stiffener Substances 0.000 claims description 20
- 239000000835 fiber Substances 0.000 claims description 17
- 238000007493 shaping process Methods 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 239000000284 extract Substances 0.000 claims description 5
- 239000006260 foam Substances 0.000 claims description 5
- 210000003205 muscle Anatomy 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229920001875 Ebonite Polymers 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 229920006332 epoxy adhesive Polymers 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 238000009941 weaving Methods 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 238000010009 beating Methods 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000000047 product Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Moulding By Coating Moulds (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The invention provides a forming and manufacturing method of a composite material hat-shaped reinforced wall plate based on a filament laying technology, which comprises the following steps: coating a release agent or paving and pasting release cloth on the inner surface of a hat-shaped reinforcement groove of a wallboard male die forming die, and then paving and pasting a hat-shaped reinforcement or placing a cured hat-shaped reinforcement; placing a rubber tube coated with a release agent or wound with release cloth in a groove of the cap-shaped reinforcement member, placing an internal support member in a shape matched with the rubber tube in the rubber tube, placing a tubular vacuum bag with two open ends between the internal support member and the rubber tube, and fixing the rubber tube on a wallboard male die forming die; filling filler in the empty area of the hat-shaped reinforcement; paving a skin on the outer surface of the forming die by adopting automatic wire paving equipment; covering a process cover plate on the outer surface of the skin; vacuum bagging, vacuumizing, heating and pressurizing, curing and forming; and after cooling, removing the wall plate male die forming die, and extracting the rubber pipe to obtain the composite material hat-shaped reinforced wall plate.
Description
Technical field
The present invention relates to the moulding manufacture method of field of aerospace technology composite element, more particularly, to one
Plant the moulding manufacture method of the composite hat Material Stiffened Panel based on piddler technology.
Background technology
Composite hat Material Stiffened Panel structure is made up of hat muscle and covering, with torsional stability and flexing higher
Intensity, therefore be widely used on aircaft configuration, such as fuselage wallboard, pressure chamber etc..Using high mechanization and digitlization
Automatic fiber placement technology manufacture composite hat Material Stiffened Panel, with manufacture efficiency it is high, product quality uniformity is good, material is unrestrained
The low advantage of the amount of expense, is particularly suitable for manufacturing tubular or other complex components.
Hat Material Stiffened Panel can be divided into foam Material Stiffened Panel and hollow-core construction hat Material Stiffened Panel by product form.Foam adds
Foam machining difficulty is big and easily damaged in muscle wallboard, while increasing construction weight.The forming core of hollow-core construction hat Material Stiffened Panel
Mould includes metal core die and rubber mandrel.Material Stiffened Panel is molded using metal core die, metal core die high cost, weight are big, while
Cannot the demoulding for complex curvatures wallboard.Material Stiffened Panel is molded using rubber mandrel, solid rubber core cannot ensure that wallboard is total to
Hat Material Stiffened Panel product inside briquetting pressure is identical with outside solidifying pressure during curing molding, it is difficult to meet composite element
Internal pressurization requirement in forming process.Hollow rubber core can guarantee that hat Material Stiffened Panel product inside briquetting pressure and outside
Solidifying pressure is identical, but uses what piddler technique was manufactured with covering using the formpiston with hat reinforcement groove is paved for wallboard
Scheme, hollow rubber core cannot support piddler head pressure, the covering for being easily caused Material Stiffened Panel hollow position to sink, it is impossible to ensure just
True profile.In addition, mould is pivoted during piddler, covering piddler is influenceed to avoid hat reinforcement and core movement,
Core must be fixed on mould well.
Therefore, in order to when ensureing to be manufactured using formpiston the operation of covering piddler can be normally carried out, and core can guarantee that wallboard consolidate
Briquetting pressure during change, and realize the smooth demoulding of core, does not increase construction weight, it is necessary to develop a kind of based on piddler technology
Composite hat Material Stiffened Panel moulding manufacture method, to improve traditional process.
The content of the invention
In order to solve the above-mentioned problems in the prior art, the present invention provides a kind of composite based on piddler technology
The moulding manufacture method of hat Material Stiffened Panel.
According to the present invention, the moulding manufacture method is comprised the following steps：
In the hat reinforcement groove inner surface release agent application or paving release cloth of wallboard male mould forming mould, then repave
The hat stiffener that patch hat stiffener or placement are cured；
The rubber tube of release agent application or winding release cloth is placed in the groove of the hat stiffener, wherein described
The internal support being adapted with its shape is placed in rubber tube, two ends are placed 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 wallboard male mould forming mould；
Filler is filled in the dummy section of the hat stiffener；
Covering is spread out using automatic fiber placement equipment in the outer surface of the wallboard male mould forming mould；
A layer process cover plate is covered in the outer surface of the covering；
Beat vacuum bag and vacuumize, then temperature-pressure, curing molding；
After cooling, the wallboard male mould forming mould is sloughed, and extract rubber tube out, obtain composite 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 member are opened in the middle of the internal support, is fixed by binding or magnetic force.
Wherein, described 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 plate 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；Or, can
Internal support is not taken out in selection, after taking-up after product curing molding.
Compared with prior art, the present invention has advantages below：
1) the characteristics of being molded wallboard, the shape without Faville low compared to hollow rubber core rigidity for formpiston manufacture co-curing, this
Inventing the rubber tube with internal support for using has enough rigidity, can bear pressure during automatic fiber placement head operation,
Cavity shape when maintaining covering paved between hat stiffener and covering, it is to avoid skin morph；
2) cannot ensure that hat ribbed inner surface lacks with the solidifying pressure identical of skin-surface compared to solid rubber core
Point, the tubular vacuum bag two ends that the present invention is used connect with autoclave atmospheric environment, and using rubber tube as annular gasket, will be solid
Change pressure transmission to hat stiffener and covering inner surface, meet the internal pressurization requirement in composite element forming process；
3) pipe is placed in the shortcoming low compared to the easy gas leakage service life of hollow rubber air bag, the rubber tube inside that the present invention is used
Shape vacuum bag to ensure air-tightness, rubber tube as annular gasket without air-tightness requirement, it is high with service life, low cost it is excellent
Point；
4) forming method can be not only used for being glued co-curing shaping, co-curing shaping be can be used for again, with versatility.
Brief description of the drawings
Further feature of the invention and advantage will be more preferable by the preferred embodiment described in detail below in conjunction with accompanying drawing
Ground understanding, wherein：
Fig. 1 is the viewgraph of cross-section of the composite hat Material Stiffened Panel of the invention in piddler process；
Fig. 2A -2B are the viewgraph of cross-section of the composite 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 eliminated down in figure
Fillet.
Specific embodiment
In the specific descriptions of following preferred embodiment, by the accompanying drawing with reference to appended by constituting a present invention part.Institute
Attached accompanying drawing has been illustrated by way of example can realize specific embodiment.The embodiment of example is not intended as
Limit all embodiments of the invention.It is appreciated that without departing from the scope of the present invention, it is possible to use other
Embodiment, it is also possible to carry out structural or logicality modification.
The first step, as shown in figure 1, first wallboard male mould forming mould 1 hat reinforcement groove 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 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.
Second step, releasing agent or winding release cloth are coated by rubber tube 3, and the preferred tetrafluoro cloth of release cloth can also be it
Its suitable release materials.One layer of crack arrest laying can be again wound outside rubber tube 3, rubber tube 3 is then placed on hat reinforcement groove
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 when covering described below 8 is paved to provide enough rigidity, it is to avoid covers
Skin 8 produces 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 the section form shown in Fig. 3, internal support 4 preferably with rubber
The inner surface configuration identical ladder shape part of pipe 3, circular hole, built-in rope or rod member are opened in centre.Will be with internal by binding or magnetic force
The rubber tube 3 of support member 4 is fixed on wallboard male mould forming mould 1, it is to avoid core during wallboard male mould forming 1 rotary motion of mould
It is mobile.
3rd step, the filling filler in the dummy section 6 of hat stiffener 2.Specifically, in rubber tube 3, hat stiffener 2
And the filling filler of triangle dummy section 6 between covering 8 described below, the one-way tape of the preferred rolling of the filler, can also be
Unidirectional fibre, 3 D weaving preforming material, epoxy resin, adhesive or other suitable materials.
4th step, the illiteracy for adapting to required profile is spread out in the outer surface of wallboard male mould forming mould 1 using automatic fiber placement equipment
Skin 8, piddler material can select carbon fibre reinforced composite.The covering 8 of piddler shaping can be flat board, single-curvature or complexity
The tubular or bulk of curvature, high degree of automation can guarantee that product quality uniformity very high.Further, as implemented in Fig. 1
Shown in example, can paving reinforcement laying 7 between hat stiffener 2 and covering 8.
5th step, as shown in Figure 2 A, a layer process cover plate 9 is covered in the outer surface of covering 8, after improving the shaping of covering 8
Surface quality.The combination of the aluminium of the preferred minimal thickness of material of technique cover plate 9, copper, hard rubber, fabric and rubber, or other conjunctions
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 with unreal
Apply the operation, you can not take out internal support 4.5 two ends of tubular vacuum bag connect with autoclave atmospheric environment, and with rubber tube
Solidifying pressure, as annular gasket, is transferred to hat stiffener 2 and the inner surface of covering 8 by 3, is met composite element and was molded
Internal pressurization requirement in journey.
7th step, beats whole wallboard vacuum bag 10 and vacuumizes, then temperature-pressure, curing molding.Temperature-pressure sets
Standby preferred autoclave, further includes the available devices such as baking oven, electric blanket.
8th step, after cooling, sloughs wallboard male mould forming mould 1, and extracts rubber tube 3 out, obtains composite hat and adds
Muscle wallboard.If the 6th step is not carried out, internal support 4 need in the lump be taken out with rubber tube 3, obtain composite hat reinforcement
Wallboard.
Moulding manufacture method of the invention is applied to splicing co-curing and the shaping of co-curing two ways, wherein solid altogether
Chemical conversion type has more cost advantage, without unnecessary mould.The hat Material Stiffened Panel of co-curing shaping, reduces rib or covering elder generation
The cost of row solidification, so as to have no obvious interface between covering and rib after significantly reducing manufacturing cost, and shaping, carries
The integrated carrying ability of component high, and do not increase extra weight.
More than have revealed that the technology contents and technical characterstic of specific embodiment of the invention, 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 it is exemplary and
It is not restricted, protection scope of the present invention is determined by claim.
Claims (10)
1. the moulding manufacture method of the composite hat Material Stiffened Panel of piddler technology is based on, it is characterised in that the shaping system
The method of making is comprised the following steps：
In the hat reinforcement groove inner surface release agent application or paving release cloth of wallboard male mould forming mould (1), then repave
The hat stiffener (2) that patch hat stiffener (2) or placement are cured；
The rubber tube (3) of release agent application or winding release cloth, wherein institute are placed in the groove of the hat stiffener (2)
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) tubular vacuum bag (5) of both ends open is placed between, and the rubber tube (3) with internal support (4) is fixed to described
On wallboard male mould forming mould (1)；
The filling filler in the dummy section (6) of the hat stiffener (2)；
Covering (8) is spread out using automatic fiber placement equipment in the outer surface of the wallboard male mould forming mould (1)；
A layer process cover plate (9) is covered in the outer surface of the covering (8)；
Beat vacuum bag (10) and vacuumize, then temperature-pressure, curing molding；
After cooling, the wallboard male mould forming mould (1) is sloughed, and extract the rubber tube (3) out, obtained composite hat and add
Muscle wallboard.
2. the moulding manufacture method of the composite hat Material Stiffened Panel based on piddler technology according to claim 1, its
It is characterised by, the material of the hat stiffener (2) is fibre reinforced fabric or glass fabric.
3. the moulding manufacture method of the composite hat Material Stiffened Panel based on piddler technology according to claim 1, its
It is characterised by, 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 hat Material Stiffened Panel based on piddler technology according to claim 1, its
It is characterised by, the material of the internal support (4) is rubber, metal, resin, foam or timber.
5. the moulding manufacture method of the composite hat Material Stiffened Panel based on piddler technology according to claim 1, its
It is characterised by, circular hole, built-in rope or rod member is opened in the middle of the internal support (4), will be with internal by binding or magnetic force
The rubber tube (3) of support member (4) is fixed on wallboard male mould forming mould (1).
6. the moulding manufacture method of the composite hat Material Stiffened Panel based on piddler technology according to claim 1, its
It is characterised by, described filler is one-way tape, unidirectional fibre, 3 D weaving preforming material, epoxy resin or adhesive.
7. the moulding manufacture method of the composite hat Material Stiffened Panel based on piddler technology according to claim 1, its
It is characterised by, piddler material is carbon fibre reinforced composite.
8. the moulding manufacture method of the composite hat Material Stiffened Panel based on piddler technology according to claim 1, its
It is characterised by, the material of the technique cover plate (9) is the combination or hard rubber of aluminium, copper, fabric and rubber.
9. the moulding manufacture method of the composite hat Material Stiffened Panel based on piddler technology according to claim 1, its
It is characterised by, temperature-pressure equipment is autoclave, or using baking oven, electric blanket.
10. the moulding manufacture method of the composite hat Material Stiffened Panel based on piddler technology according to claim 1, its
It is characterised by, before beating vacuum bag and vacuumizing, extracts the internal support (4) out from the rubber tube (3)；Or,
May be selected not taking out internal support (4), after taking-up after product curing molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611225077.4A CN106799851B (en) | 2016-12-27 | 2016-12-27 | Method for forming and manufacturing composite material hat-shaped reinforced wall plate based on filament laying technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611225077.4A CN106799851B (en) | 2016-12-27 | 2016-12-27 | Method for forming and manufacturing composite material hat-shaped reinforced wall plate based on filament laying technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106799851A true CN106799851A (en) | 2017-06-06 |
| CN106799851B CN106799851B (en) | 2019-07-30 |
Family
ID=58985574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611225077.4A Active CN106799851B (en) | 2016-12-27 | 2016-12-27 | Method for forming and manufacturing composite material hat-shaped reinforced wall plate based on filament laying technology |
Country Status (1)
| Country | Link |
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| CN (1) | CN106799851B (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108407335A (en) * | 2018-03-28 | 2018-08-17 | 中国航空工业集团公司基础技术研究院 | A kind of composite material shape for hat Material Stiffened Panel integral forming 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 |
| 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 |
| 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 |
| CN110757830A (en) * | 2018-07-26 | 2020-02-07 | 中国商用飞机有限责任公司 | Thermal diaphragm forming method and preparation system of hat-shaped stringer |
| CN110891752A (en) * | 2017-07-25 | 2020-03-17 | 株式会社斯巴鲁 | Composite material forming jig and composite material forming method |
| 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 |
| CN112141315A (en) * | 2020-09-29 | 2020-12-29 | 中国商用飞机有限责任公司北京民用飞机技术研究中心 | Aircraft control surface composite material wallboard structure and forming system and method thereof |
| CN112265288A (en) * | 2020-09-02 | 2021-01-26 | 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 |
| CN112659418A (en) * | 2020-11-23 | 2021-04-16 | 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 reinforced wall plate |
| CN113021938A (en) * | 2019-12-09 | 2021-06-25 | 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 |
| 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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