CN111002603A - Manufacturing method of integrally formed automobile rear wing - Google Patents
Manufacturing method of integrally formed automobile rear wing Download PDFInfo
- Publication number
- CN111002603A CN111002603A CN201911274041.9A CN201911274041A CN111002603A CN 111002603 A CN111002603 A CN 111002603A CN 201911274041 A CN201911274041 A CN 201911274041A CN 111002603 A CN111002603 A CN 111002603A
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- insert
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- rear wing
- integrally formed
- die
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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
- B29C70/30—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
- B29C70/34—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 and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
- B29C70/342—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 and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation using isostatic pressure
-
- 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
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- 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
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3005—Body finishings
Abstract
The invention discloses a method for manufacturing an integrally formed automobile rear wing, which comprises the following steps: (1) preheating a mold: preheating the mold at a predetermined temperature; (2) and paving and pasting prepreg: paving a first layer of material sheet in the preheated upper die, the preheated lower die, the preheated first insert and the preheated second insert, trimming along the edge of the die, closing the lower die and the preheated first insert, and paving a second layer of material sheet; (3) and closing the mold: placing a random nylon air bag, and closing the lower die, the second insert and the upper die; (4) molding; (5) and carrying out molding and post-treatment to obtain the final product. The manufacturing method of the integrally formed automobile rear wing can realize the integral forming of products, reduce the gluing process and improve the production efficiency; the product has more beautiful appearance fiber texture and no obvious adhesive joint gap.
Description
Technical Field
The invention relates to the field of manufacturing of carbon fiber automobile exterior trimming parts, in particular to a manufacturing method of an integrally formed automobile rear wing.
Background
The carbon fiber composite material has high specific strength and specific rigidity, good impact resistance and unique fiber texture appearance, and can be used as a substitute of a metal material for automobile exterior trimming parts. Meanwhile, the carbon fiber composite material has a good vibration absorption effect, has a large buffering effect on impact, reduces the generation of impact fragments and improves the safety. In addition, the use of the carbon fiber external decorative material not only achieves the effect of light weight of the automobile, but also simplifies the manufacturing process of parts, reduces the processing, assembly and maintenance costs of the parts and reduces the production cost.
The rear wing is used as a motion external member and an external decoration piece of the tail part of the automobile, the edge angle of the product is clear, and the rear wing and the bottom double exhaust supplement each other. The carbon fiber rear wing has excellent rigidity and durability, light weight, attractive appearance and no function loss, and is increasingly adopted by sports cars at present. The structure of the rear wing of the automobile shown in fig. 1 includes a base connecting structure 11 and a rear wing main body structure 12. The structure of the traditional carbon fiber decorating part manufacturing process needs to be manufactured by block forming and then combined into an integral shape through a secondary gluing process. The manufacturing method has the defects of low processing efficiency and easy warping deformation of products, and the adhesive joint gap seriously influences the attractive appearance.
Disclosure of Invention
The invention mainly solves the technical problem of providing the manufacturing method of the integrally formed automobile rear wing, which can realize the integral forming of products, reduce the adhesive bonding process and improve the production efficiency.
In order to solve the technical problems, the invention adopts a technical scheme that: the manufacturing method of the integrally formed automobile rear wing comprises the following steps:
(1) preheating a mold: preheating the die at a preset temperature, wherein the die comprises an upper die, a lower die, a first insert and a second insert, and the first insert and the second insert are respectively positioned on two different side surfaces of the lower die;
(2) and paving and pasting prepreg: paving a first layer of material sheet in the preheated upper die, the preheated lower die, the preheated first insert and the preheated second insert, trimming along the edge of the die, closing the lower die and the preheated first insert, and paving a second layer of material sheet;
(3) and closing the mold: placing a random nylon air bag, and closing the lower die, the second insert and the upper die;
(4) and forming: adopting mould pressing pulse forming or autoclave forming;
(5) and carrying out molding and post-treatment to obtain the final product.
In a preferred embodiment of the present invention, in the step (2), after the first layer of material is laid in the first insert and the second insert, vacuum pre-pumping is performed for 30min, and then trimming is performed along the edges of the inserts.
In a preferred embodiment of the invention, the molding pulse molding is specifically carried out at a temperature of 130 ℃ and 145 ℃, for 60min, under a pressure of 20-25T, under an internal pressure of 0.2-0.7MPa, and for 30 min.
In a preferred embodiment of the present invention, in the step (2), a transparent resin film is first attached to the preheated upper mold, the preheated lower mold, the preheated first insert and the preheated second insert, and then a first material sheet is attached to the transparent resin film.
In a preferred embodiment of the present invention, in the step (3), a random nylon air bag is placed, wherein an air blowing opening of the random nylon air bag is wrapped with a plastic air nozzle by using an adhesive tape, the protruding portion of the edge of the second layer of material sheet is folded in half to wrap the random nylon air bag, and the lower die, the second insert block and the upper die are closed.
In a preferred embodiment of the invention, the first layer material sheet is 3K carbon fiber prepreg, specifically Dongli T300, the gram weight is 200-.
In a preferred embodiment of the invention, the second material sheet is a 12K carbon fiber prepreg, specifically Dongli T700 with a grammage of 600-640g, and the resin is an epoxy resin with a content of 35% -40%.
In a preferred embodiment of the invention, the post-forming treatment comprises drilling, riveting or spraying of a varnish.
In a preferred embodiment of the invention, the rivet connection adopts M5 rivet studs to mechanically connect the rear wing of the automobile and the rear bumper of the whole automobile.
In a preferred embodiment of the invention, the gloss paint is polyurethane system paint, the baking temperature is 60-80 ℃, and the paint thickness is 200-350 μm.
The invention has the beneficial effects that: the manufacturing method of the integrally formed automobile rear wing can realize the integral forming of products, reduce the gluing process and improve the production efficiency; the fiber texture of the product appearance is more beautiful, and the surface A of the product appearance has no obvious adhesive joint gap; the product can be integrally formed and manufactured by various forming processes, and different performance requirements are met. The products are mechanically connected by the rivet studs, so that the installation, the subsequent disassembly and the maintenance of the products are convenient.
Drawings
FIG. 1 is a schematic perspective view of a rear wing of an integrally formed automobile according to a preferred embodiment of the present invention;
FIG. 2 is an exploded view of a preferred embodiment of the mold for integrally forming the rear wing of the vehicle according to the present invention;
the parts in the drawings are numbered as follows: 21-upper die, 22-lower die, 23-first insert and 24-second insert.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the invention.
Referring to fig. 1 and 2, an embodiment of the present invention includes:
a die used in a manufacturing method of an integrally formed automobile rear wing comprises an upper die 21, a lower die 22, a first insert 23 and a second insert 24, wherein the first insert 23 and the second insert 24 are respectively located on two different side surfaces of the lower die 22.
The first embodiment is as follows:
a layer of 3K carbon fiber prepreg is pasted in an upper die, a lower die and a first insert and a second insert of the die (shown in figure 2) which are preheated at the temperature of 30 ℃, the two inserts are subjected to vacuum pre-pumping for 30min, and then the first layer of material sheet is trimmed along the edge of the die. And then, after the first insert is closed to the die, a layer of 12K carbon fiber prepreg is attached without trimming.
Placing a random nylon air bag, folding and wrapping the random nylon air bag by protruding 10mm of the edge of the second layer of material sheet, and closing the lower die, the second insert and the upper die; the bolt holes are sealed by 4 layers of high-temperature adhesive tapes, and the air-permeable felt, the vacuum valve base and the vacuum bag are sequentially placed, wherein the vacuum bag is sealed along the edge of the lower die of the die, rings at two sides of the die are reserved, a shear edge is formed at the air blowing opening of the vacuum bag, the vacuum bag is adhered to a random air bag opening by high-temperature sealant, vacuum negative pressure of-0.092 MPa in the whole vacuum bag and the random air bag is guaranteed, and the vacuum negative pressure is reduced within 30mbar within 5min after stabilization.
And (3) molding by adopting an autoclave process, wherein the mold temperature is 115-125 ℃, the heat preservation time is 120min, and the pressure in the autoclave is 6 bar. And (4) drilling holes after the blank is formed, and riveting by using M5 rivet studs.
And finally, performing sand blasting treatment on the surface of the blank, and spraying polyurethane system gloss paint to obtain a final product, wherein the baking temperature of the paint is 60-80 ℃, and the thickness of the paint is controlled to be 200-350 mu m.
Example two:
a layer of 3K carbon fiber prepreg is adhered to an upper die, a lower die and a die insert (shown in figure 2) preheated at 30 ℃, the two inserts are subjected to vacuum pre-pumping for 30min, and then the first layer of material sheet is trimmed along the edge of the die. And then, after the first insert is closed to the die, a layer of 12K carbon fiber prepreg is attached without trimming.
Placing a random nylon air bag, wherein a plastic air nozzle is wound at the air blowing opening of the random nylon air bag by using an adhesive tape. And (5) folding and wrapping the second layer of material sheet with the edge protruding by 10mm in a following manner, and closing the lower die, the second insert and the upper die.
And (3) adopting mould pressing pulse forming to place the mould in the pallet of the press. Wherein the temperature of the mold temperature controller is set to 145 ℃, the heat preservation time is 60min, the pressure of the press is 20T, and the internal pressure of the air pipe is 0.6 MPa; before the product is subjected to heat preservation, a pulse air pressure process is adopted, the lower limit of the pulse air pressure is 0.2MPa, the upper limit is 0.6 MPa, and the pulse time is 20 min. And (4) drilling holes after the blank is formed, and riveting by using M5 rivet studs.
And finally, performing sand blasting treatment on the surface of the blank, and spraying polyurethane system gloss paint to obtain a final product, wherein the baking temperature of the paint is 60-80 ℃, and the thickness of the paint is controlled to be 200-350 mu m.
Example three:
in the upper die, the lower die and the die inserts (as shown in figure 2) preheated at 30 ℃, a layer of transparent resin film is firstly pasted, then a layer of 3K carbon fiber prepreg is pasted on the resin film, the two inserts are vacuumized and pre-pumped for 30min, and then the first layer of material sheet is trimmed along the edge of the die. And then, after the small insert is closed to a die, a layer of 12K carbon fiber prepreg is attached without trimming.
Placing a random nylon air bag, wherein a plastic air nozzle is wound at the air blowing opening of the random nylon air bag by using an adhesive tape. And (5) folding and wrapping the second layer of material sheet with the edge protruding by 10mm in a following manner, and closing the second insert of the lower die and the upper die.
And (3) adopting mould pressing pulse forming to place the mould in the pallet of the press. Wherein the temperature of the mold temperature controller is set to 145 ℃, the heat preservation time is 60min, the pressure of the press is 20T, and the internal pressure of the air pipe is 0.6 MPa; before the product is subjected to heat preservation, a pulse air pressure process is adopted, the lower limit of the pulse air pressure is 0.2MPa, the upper limit is 0.6 MPa, and the pulse time is 20 min. And (4) drilling holes after the blank is formed, and riveting by using M5 rivet studs. And the final product realizes spray-free molding.
In the three embodiments, the carbon fiber prepreg of the appearance layer is Dongli T300 or a material with equivalent strength, 3K twill texture, the gram weight is 200-240g, the resin is epoxy resin, and the content is 37-42%;
the 12K carbon fiber prepreg is Dongli T700 or a material with equivalent strength, the gram weight is 600-640g, the resin is epoxy resin, and the content is 35-40%.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The manufacturing method of the integrally formed automobile rear wing is characterized by comprising the following steps of:
(1) preheating a mold: preheating the die at a preset temperature, wherein the die comprises an upper die, a lower die, a first insert and a second insert, and the first insert and the second insert are respectively positioned on two different side surfaces of the lower die;
(2) and paving and pasting prepreg: paving a first layer of material sheet in the preheated upper die, the preheated lower die, the preheated first insert and the preheated second insert, trimming along the edge of the die, closing the lower die and the preheated first insert, and paving a second layer of material sheet;
(3) and closing the mold: placing a random nylon air bag, and closing the lower die, the second insert and the upper die;
(4) and forming: adopting mould pressing pulse forming or autoclave forming;
(5) and carrying out molding and post-treatment to obtain the final product.
2. The method for manufacturing the integrally formed automobile rear wing according to claim 1, wherein in the step (2), after the first layer of material sheet is laid in the first insert and the second insert, vacuum pre-pumping is performed for 30min, and then trimming and removing are performed along the edges of the inserts.
3. The method for manufacturing the integrally formed automobile rear wing as claimed in claim 1, wherein the molding pulse forming is specifically performed at a temperature of 130-.
4. The method as set forth in claim 3, wherein in the step (2), a transparent resin film is first attached to the preheated upper mold, lower mold, first insert and second insert, and then a first sheet is applied to the resin film.
5. The method for manufacturing integrally formed rear wing of automobile as claimed in claim 3, wherein in said step (3), a random nylon air bag is placed, wherein an air blowing port of said random nylon air bag is wrapped with a plastic air nozzle by an adhesive tape, and a protruding portion of the edge of said second layer of material is folded in half to wrap said random nylon air bag, and said lower mold, said second insert and said upper mold are closed.
6. The method for manufacturing the integrally formed automobile rear wing as claimed in claim 1, wherein the first layer material sheet is 3K carbon fiber prepreg, specifically Dongli T300 with a gram weight of 200-240g, and the resin is epoxy resin with a content of 37% -42%.
7. The method for manufacturing the integrally formed automobile rear wing as claimed in claim 1, wherein the second layer of material sheet is 12K carbon fiber prepreg, specifically Dongli T700 with a grammage of 600-640g, and the resin is epoxy resin with a content of 35% -40%.
8. The method for manufacturing the integrally formed automobile rear wing according to claim 1, wherein the post-forming treatment comprises drilling, rivet connection or spraying of a varnish.
9. The method for manufacturing the integrally formed automobile rear wing according to claim 7, wherein M5 rivet studs are adopted for the rivet connection, and the automobile rear wing and the whole automobile rear bumper are mechanically connected.
10. The method for manufacturing the integrally formed automobile rear wing as claimed in claim 7, wherein the gloss paint is polyurethane paint, the baking temperature is 60-80 ℃, and the paint thickness is 200-350 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911274041.9A CN111002603A (en) | 2019-12-12 | 2019-12-12 | Manufacturing method of integrally formed automobile rear wing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911274041.9A CN111002603A (en) | 2019-12-12 | 2019-12-12 | Manufacturing method of integrally formed automobile rear wing |
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| CN111002603A true CN111002603A (en) | 2020-04-14 |
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| CN201911274041.9A Pending CN111002603A (en) | 2019-12-12 | 2019-12-12 | Manufacturing method of integrally formed automobile rear wing |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114083812A (en) * | 2021-11-12 | 2022-02-25 | 江苏亨睿航空工业有限公司 | Composite material multi-rotor unmanned aerial vehicle integrated forming die and method |
| CN114261106A (en) * | 2021-11-12 | 2022-04-01 | 江苏亨睿航空工业有限公司 | Forming die and method for battery shell of carbon fiber unmanned aerial vehicle |
| CN114407384A (en) * | 2021-12-14 | 2022-04-29 | 中电科芜湖钻石飞机制造有限公司 | Display and control console support arm and forming method thereof |
| CN114619681A (en) * | 2022-01-24 | 2022-06-14 | 荆门劲驰汽车配件股份有限公司 | Method for preparing cavity type carbon fiber parts through integral forming |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105563851A (en) * | 2016-02-04 | 2016-05-11 | 上海晋飞新材料科技有限公司 | Moulding process for fuselage of UAV (Unmanned Aerial Vehicle) |
| CN109228406A (en) * | 2018-08-24 | 2019-01-18 | 江苏亨睿碳纤维科技有限公司 | A kind of integral formation method for carbon fiber automobile tail fin |
| CN109703056A (en) * | 2018-12-04 | 2019-05-03 | 深圳市科卫泰实业发展有限公司 | A kind of production method of the sandwich sandwich structure device hatchcover of multi-rotor aerocraft |
-
2019
- 2019-12-12 CN CN201911274041.9A patent/CN111002603A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105563851A (en) * | 2016-02-04 | 2016-05-11 | 上海晋飞新材料科技有限公司 | Moulding process for fuselage of UAV (Unmanned Aerial Vehicle) |
| CN109228406A (en) * | 2018-08-24 | 2019-01-18 | 江苏亨睿碳纤维科技有限公司 | A kind of integral formation method for carbon fiber automobile tail fin |
| CN109703056A (en) * | 2018-12-04 | 2019-05-03 | 深圳市科卫泰实业发展有限公司 | A kind of production method of the sandwich sandwich structure device hatchcover of multi-rotor aerocraft |
Non-Patent Citations (1)
| Title |
|---|
| 张东兴等: "《聚合物基复合材料科学与工程》", 31 July 2017, 哈尔滨工业大学出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114083812A (en) * | 2021-11-12 | 2022-02-25 | 江苏亨睿航空工业有限公司 | Composite material multi-rotor unmanned aerial vehicle integrated forming die and method |
| CN114261106A (en) * | 2021-11-12 | 2022-04-01 | 江苏亨睿航空工业有限公司 | Forming die and method for battery shell of carbon fiber unmanned aerial vehicle |
| CN114407384A (en) * | 2021-12-14 | 2022-04-29 | 中电科芜湖钻石飞机制造有限公司 | Display and control console support arm and forming method thereof |
| CN114619681A (en) * | 2022-01-24 | 2022-06-14 | 荆门劲驰汽车配件股份有限公司 | Method for preparing cavity type carbon fiber parts through integral forming |
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Application publication date: 20200414 |