CN105538745A - Forming method of aluminum alloy fiber laminate structural part and laminate structural part thereof - Google Patents
Forming method of aluminum alloy fiber laminate structural part and laminate structural part thereof Download PDFInfo
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- CN105538745A CN105538745A CN201510929275.8A CN201510929275A CN105538745A CN 105538745 A CN105538745 A CN 105538745A CN 201510929275 A CN201510929275 A CN 201510929275A CN 105538745 A CN105538745 A CN 105538745A
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- aluminum alloy
- fiber
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- paving
- alloy fiber
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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
- B29C70/443—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 and impregnating by vacuum or injection
-
- 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
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/38—Automated lay-up, e.g. using robots, laying filaments according to predetermined patterns
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- Composite Materials (AREA)
- Mechanical Engineering (AREA)
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Abstract
The invention relates to a forming method for an aluminum alloy fiber laminate structural part. The forming method comprises the following steps including pretreatment: aluminum alloy sheets are preformed; pretreatment: the phosphoric acid anodizing treatment is performed for the aluminum alloy sheets to be machined; mold insertion: the aluminum alloy sheets are put in a mold; aluminum alloy fibers are alternately laminated; the aluminum alloy sheets and the fibers are alternately laminated up and down in sequence to form an aluminum alloy fiber laminate structure; curing formation: sealing, vacuumizing, pressurization heating and thermal insulation are performed to form the aluminum alloy fiber laminate structure through curing; and demolding: the final aluminum alloy fiber laminate structural part is obtained. The forming method has the advantages of low cost, simple steps and easiness in industrial production. The invention further relates to the aluminum alloy fiber laminate structural part obtained by the forming method; and the aluminum alloy fiber laminate structural part has the advantages of high strength, high damage tolerance resistance, longer service life and lower specific gravity.
Description
Technical field
The manufacturing process that the present invention relates to a kind of aluminum alloy fiber veneer structure part and the veneer structure part adopting this manufacturing process to obtain, the aluminum alloy fiber veneer structure part manufacturing process being especially used as aircraft variable curvature leading edge and fuselage wallboard and the aluminum alloy fiber veneer structure adopting this manufacturing process to obtain.
Background technology
Aluminum alloy fiber veneer structure part (also referred to as fiber aramid aluminiumlaminates structural member), comprises the fiber after aluminium alloy sheet and preimpregnation, and aluminium alloy sheet and fiber alternatively up and down lamination solidifying under certain process conditions form.The advantages such as the specific strength that the existing aluminum alloy materials of aluminum alloy fiber veneer structure part is higher, specific stiffness and good plasticity, fracture property, shock resistance, remain again the fatigue performance that fibre reinforced materials is good, and density ratio aluminium alloy also wants little by more than 10%, therefore has important application potential in field of aerospace.In addition, aluminum alloy fiber veneer structure part also has good sound insulation and the ability of absorption of noise, and therefore this material also has important using value at automotive field.
The external preparation and fabrication technology for aluminum alloy fiber veneer structure part there has been to be studied widely, and realizes the application of aluminum alloy fiber veneer structure part in Aero-Space.Aluminum current alloy fiber veneer structure part mainly adopts first prepares aluminum alloy fiber laminate, then prepares aluminum alloy fiber veneer structure part by roll bending or pull-shaped method, is generally the aluminum alloy fiber structural member adopting roll bending method work sheet curvature, pull-shaped method is adopted to process hyperbolicity aluminum alloy fiber veneer structure part, but because the failure strain of the fiber of aluminum alloy fiber laminate is less than 4%, when adopting stretch forming technique, fiber very easily ruptures, simultaneously due to the deformation between resin and aluminium alloy, so very easily there is lamination defect when pull-shaped, therefore pull-shaped process variable curvature aluminum alloy fiber structural member time yield rate extremely low, and process the larger tension of aluminum alloy fiber veneer structure part inside existence, therefore the research emphasis that high-quality variable curvature shape aluminum alloy fiber veneer structure part is this field how is processed, as patent of invention CN103861932 proposes a kind of building mortion and method of thermoplastic glass's aluminum alloy fiber laminate.It is high that the method has production efficiency, be applicable to producing aluminum alloy fiber veneer structure part in enormous quantities, but the method also has the limitation of itself, be mainly manifested in: the method is only applicable to the aluminum alloy fiber veneer structure part adopting thermoplastic composite to prepare, and at present at Aeronautics and Astronautics and the widely used aluminum alloy fiber laminate adopting same with thermosetting compound material to prepare that all belongs to of automotive field, thus the applicability of the method is caused to be subject to significant limitation.
Summary of the invention
For the problems referred to above, technical problem to be solved by this invention is to provide a kind of drip molding method of aluminum alloy fiber veneer structure, and this manufacturing process has that cost is lower, step is simple, the advantage that is easy to suitability for industrialized production.The present invention also provides a kind of aluminum alloy fiber veneer structure part adopting this manufacturing process to obtain, this aluminum alloy fiber veneer structure part has high strength and high anti-damage tolerance limit, service life is longer, its proportion is lighter simultaneously, significantly construction weight be can reduce, space flight, aviation and automotive field are specially adapted to.
In order to solve the problems of the technologies described above, the invention provides a kind of manufacturing process for aluminum alloy fiber veneer structure part, this manufacturing process comprises the steps:
Preform, carries out preform to aluminium alloy sheet;
Pre-treatment, carries out phosphoric acid process for described aluminium alloy sheet to be processed;
Enter mould, described aluminium alloy sheet is put into mould, described mould is former or formpiston, and described mould can form confined space with vacuum bag;
Aluminum alloy fiber replaces paving, according to order aluminium alloy sheet described in paving and the described fiber successively of aluminium alloy sheet described in paving and fiber alternatively up and down, forms aluminum alloy fiber layer structure;
Solidified forming, vacuumizes described aluminum alloy fiber veneer structure good seal good for paving with described vacuum bag, and then pressurization heats up and insulation, makes described aluminum alloy fiber veneer structure solidified forming;
The demoulding, after solidified forming completes and cool to room temperature, removes described vacuum bag, and obtains final aluminum alloy fiber veneer structure part.
Preferably, the affiliated aluminium alloy sheet after described preform makes preform and the gap between mould are less than 4mm.
Preferably, replace in paving step at described aluminum alloy fiber, every layer of fiber comprises the one-way tape of the paving up and down of 1 to 4 layer, and the machine direction angle of described adjacent one-way band is 0 °, 45 ° or 90 °.
Preferably, the complete one deck aluminium alloy sheet of every paving and fiber, take out a vacuum, and aluminium alloy sheet and fiber cumulative thickness are less than 10mm.
Preferably, described one-way tape is the one in carbon fiber, glass fibre or aramid fiber one-way tape.
Preferably, the content of the carbon fiber in described one-way tape, glass fibre or aramid fiber is 40-70%, also comprise resin in described one-way tape, described resin is the one in phenolic resins, epoxy resin or polyimides, and the thickness of described one-way tape is between 0.1-0.5mm.
Preferably, in described pre-treatment step, to the side surface uniform brushing of the described aluminium alloy sheet after phosphoric acid process, spraying or paving one deck primer.
Preferably, the composition of wherein said primer is identical with the composition of described fiber, and the use amount of described primer is 100-300g/m
2, bake out temperature is 80-100 DEG C, and drying time is 4-8 hour.
Preferably, the composition of wherein said primer is resin, and the use amount of described primer is 100-300g/m
2, bake out temperature is 80-100 DEG C, and drying time is 4-8 hour.。
Preferably, in described solidified forming step, described solidified forming is vacuumized by described aluminum alloy fiber veneer structure good seal good for paving with described vacuum bag, and vacuum pressure reduction is 0.095-0.100MPa; Make temperature at the uniform velocity be elevated between 110-150 DEG C subsequently, and be incubated 10-30 minute, insulation simultaneously, is forced into 0.6-1MPa; Then be warmed up to 170-230 DEG C, and be incubated 1-3 hour and carry out, make described aluminum alloy fiber veneer structure solidified forming.
Meanwhile, present invention also offers a kind of aluminum alloy fiber veneer structure part, it adopts the above-mentioned manufacturing process for aluminum alloy fiber veneer structure part to make.
The following Advantageous Effects that the present invention has:
A () aluminum alloy fiber veneer structure provided by the invention part manufacturing process is not only applicable to the Fiber Reinforced Metal Laminates adopting thermoplastic composite to prepare, also be applicable to Fiber Reinforced Metal Laminates prepared by now widely used same with thermosetting compound material simultaneously, applied widely.
B () aluminum alloy fiber veneer structure provided by the invention part manufacturing process realizes Fiber Reinforced Metal Laminates preparation and is shaped carrying out simultaneously, decrease forming process, reduce the cost of Fiber Reinforced Metal Laminates structural member.
C () aluminum alloy fiber provided by the invention veneer structure part manufacturing process eliminates the moulding shaping after laminate preparation, can reduce the inherent tension of veneer structure part after being shaped, effectively can improve the fatigue life of Fiber Reinforced Metal Laminates structural member.
D () aluminum alloy fiber provided by the invention veneer structure part substitutes existing aluminium alloy structure, significantly can improve the antibody Monoclonal capacitive energy of structure.
E () aluminum alloy fiber provided by the invention veneer structure part substitutes existing aluminium alloy structure, significantly can reduce the construction weight of aircraft, increases the thrust-weight ratio of aircraft, is conducive to flight.
In sum, aluminum alloy fiber veneer structure part prepared by the method for the invention provides has high strength high anti-damage tolerance limit, proportion is little, cost is low, the advantages such as method is simple, adopt the method to prepare Fiber Reinforced Metal Laminates structural member and substitute the construction weight that existing aluminum alloy junction component can realize significantly reducing aircraft, increase the thrust-weight ratio of aircraft.Preparation method of the present invention is simple, is suitable for suitability for industrialized production, has larger using value.
Accompanying drawing explanation
Figure 1A is the schematic top plan view of a kind of mould (former) in the present invention.
Figure 1B is the schematic perspective view of the mould in Figure 1A.
Fig. 2 is the schematic diagram that aluminum alloy fiber in the present invention replaces paving step.
Detailed description of the invention
Below in conjunction with Figure of description, describe the present invention further, following being described as is exemplary, not limitation of the present invention, and other any similar situations also all fall among protection scope of the present invention.
In order to illustrate the feature of the manufacturing process for aluminum alloy fiber veneer structure part of the present invention better, as shown in Figure 2, teach emphatically how for the forming process of the aluminum alloy fiber veneer structure of flat shape in detailed description of the invention, one of ordinary skill in the art will readily recognize that the aluminum alloy fiber veneer structure for the variable curvature for aircraft also can adopt this kind of manufacturing process.
Below by way of specific embodiment, technical scheme of the present invention is described in detail.Choose 2024 aluminium alloy sheets that Alcoa is commercially available, thickness 0.3mm.Choose the glass fibre of Zhuhai glass companies market.Choose the epoxy resin of Shanghai Zhong Kang companies market.One-way tape is through pre-preg, and wherein, glass fibre volume content is 50%, and all the other are epoxy resin, and the thickness of one-way tape is 0.3mm.
Preform: according to the pull-shaped method of employing, by 2024 aluminium alloy sheet preforms to required shape (shown in accompanying drawing 2 is flat shape), as required, can be variable curvature shape.
Pre-treatment: (three acid are nitric acid, chromic acid and hydroflouric acid with three sour deoxidations, recommending according to mass ratio is join three acid solutions at 3: 1: 2), 2024 aluminium alloy sheets are placed on (science popularization reaches board) in anodization groove and carry out phosphoric acid process: H3PO4 mass percent is 130g/L, anodization temperature is 25 DEG C, anodization DC voltage is 15V, and anodising time is 20 minutes.Rinse aluminium alloy sheet 8 minutes with water purification after anodization, then toast 15 minutes in the baking oven of 60 DEG C.Side surface uniform brushing one deck epoxy resin primer of 2024 aluminium alloy layer thin plates after anodization, the use amount of primer is 200g/m
2, the bake out temperature scribbling the aluminium alloy plate of primer is 90 DEG C, and baking time is 6 hours.
Enter mould: painting is brushed with the aluminium alloy sheet paving of primer on mould, as the bottom.As shown in accompanying drawing 1A and accompanying drawing 1B, be a kind of former be schematic top plan view and schematic perspective view.Wherein, former intermediate groove position is used for paving aluminium alloy sheet, after completing aluminium alloy sheet paving, can form airtight vacuum along the commercially available vacuum bag of aluminum alloy thin panel edges paving.Former in accompanying drawing 1A and accompanying drawing 1B is schematic, also can be the mould of other shapes or kind, such as various former or formpiston, can be applicable in the present invention.
Aluminum alloy fiber replaces paving: as shown in Figure 2, according to aluminium alloy sheet-fiber-aluminium alloy sheet order, alternately paving fiber and aluminium alloy sheet, wherein every layer of fiber is made up of 1-4 layer one-way tape, and the fiber angle between adjacent one-way band is can be 0 °, 45 ° or 90 °.Preferably, as shown in Figure 2, one deck fiber wherein comprises two layers of unidirectional band, and this two layers of unidirectional band is respectively 0 ° of one-way tape and 90 ° of one-way tapes, and that is, the machine direction of this two layers of unidirectional band is mutually vertical.Therefore, on the thickness direction of described aluminum alloy fiber veneer structure, alternately paving fiber and aluminium alloy sheet, the concrete alternately laying number of plies can be determined as required.For every layer of fiber wherein, comprising some layers of one-way tape, the concrete one-way tape number of plies can be determined as required.For the machine direction of every layer of one-way tape wherein, can multiple choices be had, such as can comprise 45 ° of one-way tape (not shown)s, itself and 0 ° of one-way tape angle at 45 °, its simultaneously also with 90 ° of one-way tapes also angle at 45 °.In order to ensure to paste mould, the complete one deck aluminium alloy sheet of every paving and fiber, take out a vacuum, and aluminium alloy sheet and fiber cumulative thickness are less than 10mm.
Solidified forming: utilize vacuum bag to make aluminum alloy fiber veneer structure inside form a vacuum system, such as vacuum pressure reduction is 0.095MPa, the vacuum bag that aluminum alloy fiber veneer structure is housed at the uniform velocity is warmed up to 140 DEG C, and is incubated 15 minutes, insulation simultaneously, is forced into 0.8MPa; Then be warmed up to 180 DEG C, and be incubated 2 hours, make described aluminum alloy fiber veneer structure solidified forming.
The demoulding: be cooled to 25 DEG C of room temperatures after solidified forming completes, remove described vacuum bag, and obtain final aluminum alloy fiber veneer structure part.
In sum, be only the most preferred embodiment of invention, be not used for limiting practical range of the present invention.Namely all equivalences done according to the content of the present patent application the scope of the claims change and modify, and all should be technology category of the present invention.
Claims (11)
1., for a manufacturing process for aluminum alloy fiber veneer structure part, this manufacturing process comprises the steps:
Preform, carries out preform to aluminium alloy sheet;
Pre-treatment, carries out phosphoric acid process for described aluminium alloy sheet to be processed;
Enter mould, described aluminium alloy sheet is put into mould, described mould is former or formpiston, and described mould can form confined space with vacuum bag;
Aluminum alloy fiber replaces paving, according to order aluminium alloy sheet described in paving and the described fiber successively of aluminium alloy sheet described in paving and fiber alternatively up and down, forms aluminum alloy fiber layer structure;
Solidified forming, vacuumizes described aluminum alloy fiber veneer structure good seal good for paving with described vacuum bag, and then pressurization heats up and insulation, makes described aluminum alloy fiber veneer structure solidified forming;
The demoulding, after solidified forming completes and cool to room temperature, removes described vacuum bag, and obtains final aluminum alloy fiber veneer structure part.
2. manufacturing process according to claim 1, is characterized in that, the affiliated aluminium alloy sheet after described preform makes preform and the gap between mould are less than 4mm.
3. manufacturing process according to claim 1 and 2, is characterized in that, replaces in paving step at described aluminum alloy fiber, and every layer of fiber comprises the one-way tape of the paving up and down of 1 to 4 layer, and the machine direction angle of described adjacent one-way band is 0 °, 45 ° or 90 °.
4. manufacturing process according to claim 3, is characterized in that, the complete one deck aluminium alloy sheet of every paving and fiber, take out a vacuum, and aluminium alloy sheet and fiber cumulative thickness are less than 10mm.
5. the manufacturing process according to claim 3 or 4, is characterized in that, described one-way tape is the one in carbon fiber, glass fibre or aramid fiber one-way tape.
6. manufacturing process according to claim 5, it is characterized in that, the content of the carbon fiber in described one-way tape, glass fibre or aramid fiber is 40-70%, also resin is comprised in described one-way tape, described resin is the one in phenolic resins, epoxy resin or polyimides, and the thickness of described one-way tape is between 0.1-0.5mm.
7. manufacturing process according to claim 1 and 2, is characterized in that, in described pre-treatment step, to the side surface uniform brushing of the described aluminium alloy sheet after phosphoric acid process, spraying or paving one deck primer.
8. manufacturing process according to claim 7, is characterized in that, the composition of wherein said primer is identical with the composition of described fiber, and the use amount of described primer is 100-300g/m
2, bake out temperature is 80-100 DEG C, and drying time is 4-8 hour.
9. manufacturing process according to claim 7, is characterized in that, the composition of wherein said primer is resin, and the use amount of described primer is 100-300g/m
2, bake out temperature is 80-100 DEG C, and drying time is 4-8 hour.
10. manufacturing process according to claim 1 and 2, it is characterized in that, in described solidified forming step, described solidified forming is vacuumized by described aluminum alloy fiber veneer structure good seal good for paving with described vacuum bag, and vacuum pressure reduction is 0.095-0.100MPa; Make temperature at the uniform velocity be elevated between 110-150 DEG C subsequently, and be incubated 10-30 minute, insulation simultaneously, is forced into 0.6-1MPa; Then be warmed up to 170-230 DEG C, and be incubated 1-3 hour and carry out, make described aluminum alloy fiber veneer structure solidified forming.
The aluminum alloy fiber veneer structure part that 11. any one manufacturing process according to claim 1-10 obtain.
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106042524A (en) * | 2016-06-14 | 2016-10-26 | 中车青岛四方车辆研究所有限公司 | Plate material, multilayer composite plate material with plate material, and preparation method of plate material |
| CN106515188A (en) * | 2016-12-03 | 2017-03-22 | 上海海洋大学 | Stress releasing forming method of super-hybrid fiber magnesium alloy laminated plate |
| CN106739364A (en) * | 2016-11-28 | 2017-05-31 | 株洲时代新材料科技股份有限公司 | A kind of aramid fiber/Al alloy composite and its preparation method and application |
| CN106938509A (en) * | 2017-05-18 | 2017-07-11 | 大连日瑞铸模有限公司 | A kind of compound resin metal die and preparation method thereof |
| CN107499495A (en) * | 2017-07-11 | 2017-12-22 | 中北大学 | A kind of composite wing skins front edges of interior pad sandwich core material and preparation method thereof |
| CN109334164A (en) * | 2018-09-20 | 2019-02-15 | 武汉理工大学 | A kind of solidification/forming/heat treatment integral preparation method of carbon fiber metal laminate curved-surface piece |
| CN106183328B (en) * | 2016-07-06 | 2019-02-22 | 中南大学 | A kind of manufacturing method of fiber metal board member and its device of use |
| CN112092479A (en) * | 2019-06-18 | 2020-12-18 | 成都飞机工业（集团）有限责任公司 | Thermosetting fiber metal laminate semi-curing forming process |
| US20200404783A1 (en) * | 2017-12-08 | 2020-12-24 | Hitachi Chemical Company, Ltd. | Prepreg, laminate, and production methods therefor, as well as printed circuit board and semiconductor package |
| CN113580691A (en) * | 2021-07-27 | 2021-11-02 | 燕山大学 | Aluminum-based carbon fiber metal laminate member and forming preparation method thereof |
| CN113787734A (en) * | 2021-09-15 | 2021-12-14 | 燕山大学 | Carbon fiber reinforced aluminum alloy laminate member forming process and forming die |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106042524A (en) * | 2016-06-14 | 2016-10-26 | 中车青岛四方车辆研究所有限公司 | Plate material, multilayer composite plate material with plate material, and preparation method of plate material |
| CN106183328B (en) * | 2016-07-06 | 2019-02-22 | 中南大学 | A kind of manufacturing method of fiber metal board member and its device of use |
| CN106739364A (en) * | 2016-11-28 | 2017-05-31 | 株洲时代新材料科技股份有限公司 | A kind of aramid fiber/Al alloy composite and its preparation method and application |
| CN106515188A (en) * | 2016-12-03 | 2017-03-22 | 上海海洋大学 | Stress releasing forming method of super-hybrid fiber magnesium alloy laminated plate |
| CN106938509A (en) * | 2017-05-18 | 2017-07-11 | 大连日瑞铸模有限公司 | A kind of compound resin metal die and preparation method thereof |
| CN107499495A (en) * | 2017-07-11 | 2017-12-22 | 中北大学 | A kind of composite wing skins front edges of interior pad sandwich core material and preparation method thereof |
| US20200404783A1 (en) * | 2017-12-08 | 2020-12-24 | Hitachi Chemical Company, Ltd. | Prepreg, laminate, and production methods therefor, as well as printed circuit board and semiconductor package |
| CN109334164A (en) * | 2018-09-20 | 2019-02-15 | 武汉理工大学 | A kind of solidification/forming/heat treatment integral preparation method of carbon fiber metal laminate curved-surface piece |
| CN112092479A (en) * | 2019-06-18 | 2020-12-18 | 成都飞机工业（集团）有限责任公司 | Thermosetting fiber metal laminate semi-curing forming process |
| CN113580691A (en) * | 2021-07-27 | 2021-11-02 | 燕山大学 | Aluminum-based carbon fiber metal laminate member and forming preparation method thereof |
| CN113787734A (en) * | 2021-09-15 | 2021-12-14 | 燕山大学 | Carbon fiber reinforced aluminum alloy laminate member forming process and forming die |
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