CN109334164B - A kind of solidification/forming/heat treatment integral preparation method of carbon fiber metal laminate curved-surface piece - Google Patents
A kind of solidification/forming/heat treatment integral preparation method of carbon fiber metal laminate curved-surface piece Download PDFInfo
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- CN109334164B CN109334164B CN201811101687.2A CN201811101687A CN109334164B CN 109334164 B CN109334164 B CN 109334164B CN 201811101687 A CN201811101687 A CN 201811101687A CN 109334164 B CN109334164 B CN 109334164B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/38—Layered products comprising a layer of synthetic resin comprising epoxy resins
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/02—Coating on the layer surface on fibrous or filamentary layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Moulding By Coating Moulds (AREA)
- Laminated Bodies (AREA)
Abstract
The present invention provides a kind of solidification/forming/heat treatment integral preparation methods of carbon fiber metal laminate curved-surface piece, belong to multi-layer board preparation forming technical field.Carbon fiber resin composite material and the solid solution alternately laminated setting of state aluminium alloy plate are obtained uncured Fiber Reinforced Metal Laminates by the present invention；It by being heated to uncured Fiber Reinforced Metal Laminates, pressure dual-side and keeps the temperature, while realizing the solidification, forming and ageing treatment of carbon fiber metal laminate, obtain carbon fiber metal laminate curved-surface piece.Using technique of the present invention, solidification/forming of Fiber Reinforced Metal Laminates/heat treatment process integration can be significantly improved into processing efficiency；Under normal stress effect, shear strength between fibrous layer and aluminium alloy layer is higher, aluminium alloy plate plasticity is more preferable；It is shaped using two-sided gas pressure, avoids mould rigid from contacting, element surface quality is more preferable.
Description
Technical field
The present invention relates to multi-layer board technical field more particularly to a kind of solidification/forming of carbon fiber metal laminate curved-surface piece/
It is heat-treated integral preparation method.
Background technique
Aluminum alloy materials have many advantages, such as that density is low, intensity is high, shock resistance is good, machinability is good and at low cost, make
It can be widely used in the industries such as automobile, building, aerospace.However Fatigue Life for Aluminum Alloy is low and corrosion resistance
Difference limits its further application.Although carbon fiber has high specific strength, high ratio modulus, low-density, good fatigue durability
Energy and corrosion resistance, but transverse strength and shock resistance are poor outside carbon fiber face, and interlayer is easy to produce removing.In order to
In conjunction with the advantages of aluminum alloy materials and carbon fibre composite, while overcoming respective disadvantage, people have developed metal material with
The compound carbon fiber metal plies of material of carbon fiber, i.e. carbon fiber metal laminate.
The method for preparing carbon fiber metal laminate in the prior art includes autoclave method and die pressing, by autoclave processing
Element mechanics performances is stable, compacting uniformly, surface smoothness it is good, but since radius-thickness ratio is smaller when aluminium alloy plate is shaped, easily
Instability wrinkling and rupture are generated, while autoclave method fabrication cycle is longer.Die forming technique shortens system to a certain extent
Make the period, but due to the Fiber Reinforced Metal Laminates discontinuity in pressing process, resin material flowing is disorderly in Fiber Reinforced Metal Laminates
Disorderly, the shear strength between fibrous layer and aluminium alloy layer is lower, and component is easy failure in actual use；Mold process
In, Fiber Reinforced Metal Laminates contact rigid die in two sides up and down, and element surface quality is poor.
Summary of the invention
The present invention provides a kind of solidification/forming/heat treatment integral preparation method of carbon fiber metal laminate curved-surface piece,
The following steps are included:
(1) by carbon fiber resin composite material and the alternately laminated setting of aluminium alloy plate, laminated fabric plymetal is obtained；Institute
The bottom and top layer for stating laminated fabric plymetal are aluminium alloy plate；
(2) the laminated fabric plymetal that the step (1) obtains is warming up to 80~100 DEG C, while to laminated fabric
Plymetal carries out level-one pressure dual-side；The direction of the pressure dual-side is the normal of laminated fabric plymetal upper and lower surfaces
Direction；The pressure for being applied to upper and lower surfaces is equal, is 15~20MPa, obtains softening fibre plymetal；
(3) under 15~20MPa pressure, the softening fibre plymetal that the step (2) obtains is warming up to 120~
140 DEG C, obtain uncured Fiber Reinforced Metal Laminates；
(4) at 120~140 DEG C, the upper and lower surfaces for the uncured Fiber Reinforced Metal Laminates that first step (3) is obtained
Second level pressure dual-side is carried out, the pressure for being applied to upper and lower surfaces is unequal, and uncured Fiber Reinforced Metal Laminates start to deform
And gradually mold；The direction of exerting pressure of the second level pressure dual-side is the normal direction of uncured Fiber Reinforced Metal Laminates upper and lower surfaces；
Then after being depressurized to 0MPa under the conditions of 120~140 DEG C, continue isothermal holding, obtain carbon fiber metal laminate curved-surface piece.
Preferably, carbon fiber resin composite material is dried to obtain after being impregnated in resin by carbon fiber in the step (1)；
The resin includes bisphenol A type epoxy resin or aminoepoxy resin；The aluminium alloy plate is solid solution state aluminium alloy plate.
Preferably, the number of plies of aluminium alloy plate is 2~5 in the step (1).
Preferably, the pressure that lower surface is applied in the step (4) is higher than the pressure for being applied to upper surface, and pressure difference is
(0,15MPa]。
Preferably, the pressure that upper surface is applied in the step (4) is 15~20MPa.
Preferably, be applied in the step (4) lower surface pressure be (20,25MPa].
Preferably, the temperature of isothermal holding is 120~170 DEG C in the step (4), time of isothermal holding is 6~
18h。
Preferably, step (2)~(4) carry out in shaping dies, pass through the ventilation to shaping dies upper and lower surface
Hole is passed through gas to control pressure size.
Preferably, uncured Fiber Reinforced Metal Laminates uncured fiber during second level pressure dual-side in the step (4)
Plymetal is cured, shapes, and with this condition, the aluminium alloy plate in uncured Fiber Reinforced Metal Laminates synchronizes at timeliness
Reason.
The present invention provides a kind of solidification/forming/heat treatment integral preparation method of carbon fiber metal laminate curved-surface piece,
Carbon fiber resin composite material and the alternately laminated setting of aluminium alloy plate are obtained uncured Fiber Reinforced Metal Laminates by the present invention；Pass through
Uncured Fiber Reinforced Metal Laminates are heated, pressure dual-side and heat preservation, while realizing the solidification of carbon fiber metal laminate, forming
With ageing treatment, carbon fiber metal laminate curved-surface piece has been obtained.It, can be by Fiber Reinforced Metal Laminates using technique of the present invention
Solidification/forming/heat treatment process integration, significantly improve processing efficiency；Under normal stress effect, fibrous layer and aluminium alloy plate
Between layer shear strength is higher, plasticity is more preferable；It is shaped using two-sided gas pressure, avoids mould rigid from contacting, component surface
Better quality.
Embodiment the result shows that, method provided by the invention, which can shape several passages of conventional method, to be reduced to one
Step forming, the shear strength for the carbon fiber metal laminate curved-surface piece being prepared is about 78~85MPa.
Detailed description of the invention
Fig. 1 is the preparation flow figure of carbon fiber metal laminate curved-surface piece of the present invention；
In Fig. 1,1- top layer aluminium alloy plate, 2- carbon fiber resin composite material, 3- bottom aluminium alloy plate, 5- shaping dies,
6- adding thermal resistance, the carbon fiber metal laminate in 7- deformation, the upper surface 8- gas passage, 9- pressure controller, the lower surface 10- gas
Body channel, 11- air accumulator；
Fig. 2 is the side view of laminated fabric plymetal of the present invention；
Fig. 3 is the preparation condition figure of carbon fiber metal laminate curved-surface piece of the present invention.
Specific embodiment
The present invention provides a kind of solidification/forming/heat treatment integral preparation method of carbon fiber metal laminate curved-surface piece,
The following steps are included:
(1) by carbon fiber resin composite material and the alternately laminated setting of aluminium alloy plate, laminated fabric plymetal is obtained；Institute
The bottom and top layer for stating laminated fabric plymetal are aluminium alloy plate；
(2) the laminated fabric plymetal that the step (1) obtains is warming up to 80~100 DEG C, while to laminated fabric
Plymetal carries out level-one pressure dual-side；The direction of the pressure dual-side is the method for uncured Fiber Reinforced Metal Laminates upper and lower surfaces
Line direction；The pressure for being applied to upper and lower surfaces is equal, is 15~20MPa, obtains softening fibre plymetal；
(3) under 15~20MPa pressure, the softening fibre plymetal that the step (2) obtains is warming up to 120~
140 DEG C, obtain uncured Fiber Reinforced Metal Laminates；
(4) at 120~140 DEG C, the upper and lower surfaces for the uncured Fiber Reinforced Metal Laminates that first step (3) is obtained
Second level pressure dual-side is carried out, the pressure for being applied to upper and lower surfaces is unequal, and uncured Fiber Reinforced Metal Laminates start to deform
And gradually mold；The direction of exerting pressure of the second level pressure dual-side is the normal direction of uncured Fiber Reinforced Metal Laminates upper and lower surfaces；
Then after being depressurized to 0MPa under the conditions of 120~140 DEG C, continue isothermal holding, obtain Fiber Reinforced Metal Laminates curved-surface piece.
Carbon fiber resin composite material and the alternately laminated setting of aluminium alloy plate are obtained uncured fiber metal by the present invention
Plate.
In the present invention, the bottom of the uncured Fiber Reinforced Metal Laminates and top layer are aluminium alloy plate, the aluminium alloy
The number of plies of plate is preferably 2~5, and further preferably 3~4.In the present invention, the carbon fiber resin composite material and aluminium alloy
The setting of plate preferably includes: aluminium alloy plate-carbon fiber resin composite material-aluminium alloy plate or aluminium alloy plate-carbon fibre resin
Composite material-aluminium alloy plate-carbon fiber resin composite material-aluminium alloy plate or aluminium alloy plate-carbon fibre resin composite wood
Material-aluminium alloy plate-carbon fiber resin composite material-aluminium alloy plate-carbon fiber resin composite material-aluminium alloy plate.In the present invention
In, when the number of plies of the aluminium alloy plate is preferably 2 layers, structural schematic diagram such as Fig. 1 of the uncured Fiber Reinforced Metal Laminates is left
Shown in upper angle, wherein 1 represents top layer aluminium alloy plate, 2 represent carbon fiber resin composite material, and 3 represent bottom aluminium alloy plate, non-solid
Change the side view of Fiber Reinforced Metal Laminates as shown in Figure 2.
In the present invention, the carbon fiber resin composite material is preferably flaky material, the carbon fibre resin composite wood
The thickness of material is preferably 0.2~0.5mm；The carbon fiber resin composite material is preferably disc-shaped, and the present invention is to the disk
Diameter be not particularly limited, in a specific embodiment of the present invention, the diameter is preferably 50~300mm.In the present invention,
The carbon fiber resin composite material is dried to obtain after preferably being impregnated in resin by carbon fiber；The carbon fiber is preferably T700
Type orthogonal direction woven cloth, T500 type orthogonal direction woven cloth or T300 type orthogonal direction woven cloth；The resin preferably includes
Bisphenol A type epoxy resin or aminoepoxy resin.In a specific embodiment of the invention, the carbon fibre composite room temperature
Under be soft state, be similar to cloth.
In the present invention, the aluminium alloy plate is preferably dissolved state aluminium alloy plate.Present invention preferably employs solid solution state aluminium to close
Golden plate, the solid solution state aluminium alloy plate while intensity with higher and preferable plasticity, and can directly carry out ageing treatment reality
Now strengthen.In the present invention, the thickness of the aluminium alloy plate is preferably 0.8~1.5mm, further preferably 1.0~1.2mm；
The aluminium alloy plate is preferably disc-shaped, and diameter is preferably 100~200mm.
The present invention is to specific embodiment alternately stacked between carbon fiber resin composite material and aluminium alloy plate without spy
It does not limit, using alternately laminated mode commonly used by those skilled in the art.
When by carbon fiber resin composite material and the alternately laminated setting of aluminium alloy plate, the present invention is preferably in carbon fiber composite
One layer of gluing film is laid between material and aluminium alloy plate.The present invention does not limit the type of the gluing film and source especially
System, using any commercial goods.The present invention preferably pass through be laid with gluing film further increase carbon fibre composite and
Cementation between aluminium alloy plate.
In the present invention, the thickness of the uncured Fiber Reinforced Metal Laminates is preferably 1~4mm, further preferably 2~
3mm, diameter are preferably 100~200mm, and further preferably 120~180mm, radius-thickness ratio is preferably 0.005~0.04, into one
Step preferably 0.01~0.03.In the present invention, the calculation method of the radius-thickness ratio is thickness divided by diameter.The present invention preferably will
Radius-thickness ratio controls within the above range, is conducive to improve test specimen forming accuracy, reduces forming pressure.
After obtaining laminated fabric plymetal, laminated fabric plymetal is warming up to 80~100 DEG C by the present invention, while right
Laminated fabric plymetal carries out level-one pressure dual-side, obtains softening fibre plymetal.
The present invention carries out heating and level-one pressure dual-side preferably in shaping dies.The present invention is preferably in laminated fabric metal
Before laminate is placed in shaping dies, release agent is coated in shaping dies inner surface.Type and coating method of the present invention to release agent
It is not particularly limited, using type well-known to those skilled in the art and mode.
After coating release agent, laminated fabric plymetal is preferably placed in shaping dies by the present invention, is molded and to forming
Mold applies pressure-pad-force, and the pressure-pad-force is preferably 20~70 tons, and further preferably 40~70 tons.
Laminated fabric plymetal is warming up to 80~100 DEG C by the present invention.In the present invention, the laminated fabric metal layer
Target temperature after plate heating is 80~100 DEG C, preferably 85~95 DEG C.The present invention preferably controls target temperature in above-mentioned model
In enclosing, makes the resin melting flowing in carbon fiber resin composite material, be conducive to sufficiently infiltrate carbon fiber and aluminium alloy plate, In
The adhesion strength of carbon fiber and aluminium alloy plate is improved during subsequent experimental, and then improves the shearing of carbon fiber metal composite material
Performance.
The present invention carries out level-one pressure dual-side to laminated fabric plymetal.It is double that the present invention preferably carries out level-one by gas
Face pressurization, the gas is preferably nitrogen.Laminated fabric plymetal is preferably placed in shaping dies by the present invention, by
The gas passage of the upper and lower surfaces of shape mold is passed through gas, and pressure is made smoothly to reach goal pressure, avoid in conventional method at
Shape mold is directly contacted with laminated fabric plymetal, to shaping dies under pressure caused by fiber metal plate surface matter
It is poor to measure, and there are problems that scratch.Present invention preferably employs gases to carry out pressurized treatments to laminated fabric plymetal, effectively improves
The surface quality for the carbon fiber metal laminate being finally prepared.
In the present invention, the direction of the level-one pressure dual-side is the normal side of laminated fabric plymetal upper and lower surfaces
To.In the present invention, the pressure for being applied to upper and lower surfaces is equal, is 15~20MPa, preferably 16~19MPa, into one
Step is preferably 17~18MPa.The present invention sets the direction of level-one pressure dual-side to the normal direction of laminated fabric plymetal,
Be conducive to improve the active force between fibrous layer and aluminium alloy plate layer, and then be conducive to improve cutting for fibrous layer and aluminium alloy plate layer
Shearing stress.
In the present invention, the level-one pressure dual-side process is that pressure gradually rises from 0 to the process of goal pressure.
In the present invention, the time of the level-one pressure dual-side and the time of the heating are equal, preferably 15~
40min, further preferably 20~35min, more preferably 25~30min.
After obtaining softening fibre plymetal, the present invention heats up softening fibre plymetal under 15~20MPa pressure
To 120~140 DEG C, uncured Fiber Reinforced Metal Laminates are obtained.
Under 15~20MPa pressure, the present invention continues heating treatment on the basis of 80~100 DEG C, after heating
Target temperature is 120~140 DEG C, preferably 125~135 DEG C.In the present invention, the time of the heating treatment be preferably 15~
30min, further preferably 20~25min.
After obtaining uncured Fiber Reinforced Metal Laminates, the present invention is at 120~140 DEG C, to uncured Fiber Reinforced Metal Laminates
Upper and lower surfaces carry out second level pressure dual-side, and the pressure for being applied to upper and lower surfaces is unequal, the second level pressure dual-side
Direction of exerting pressure is the normal direction of uncured Fiber Reinforced Metal Laminates upper and lower surfaces, obtains solidified forming Fiber Reinforced Metal Laminates.
In the present invention, the pressure for being applied to lower surface is preferably higher than the pressure for being applied to upper surface, and pressure difference is excellent
Be selected as (0,15MPa], further preferably 2~13MPa, more preferably 5~10MPa.The present invention, which preferably applies lower surface, to press
Power control is conducive to make uncured Fiber Reinforced Metal Laminates to bend molding to apply pressure higher than upper surface.In the present invention,
The time of the second level pressure dual-side is preferably 30~50min, further preferably 35~45min.
In the present invention, the pressure for being applied to upper surface is preferably 15~20MPa, further preferably 16~19MPa, more
Preferably 17~18MPa.The present invention is that steady state value or changing value do not require to the application pressure of upper surface, only need to guarantee to apply
The pressure for being added on lower surface is higher than the pressure of upper surface.
In the present invention, be applied to lower surface pressure be preferably (20,25] MPa, further preferably 21~24MPa,
More preferably 22~23MPa.
The present invention preferably passes through gas and carries out second level pressure dual-side to uncured Fiber Reinforced Metal Laminates, effectively increases final
The surface quality for the carbon fiber metal laminate being prepared.In the present invention, the gas is preferably nitrogen.
In the present invention, the second level pressure dual-side treatment process is as shown in the upper right corner Fig. 1.Wherein, 5 be shaping dies, 6
It is carbon fiber metal laminate in deformation for adding thermal resistance, 7,8 be upper surface gas passage, 9 be pressure controller, 10 is following table
Face gas passage, 11 are air accumulator.
In the present invention, the uncured Fiber Reinforced Metal Laminates gradually become bended during second level pressure dual-side, such as
Shown in the lower right corner Fig. 1.
Tree during the present invention carries out second level pressure dual-side at the temperature disclosed above, in the uncured Fiber Reinforced Metal Laminates
Rouge is gradually cured, shapes, simultaneously because the pressure size that die cavity applies up and down is different, makes the fibers gold for being cured forming
Belong to laminate gradually to become bended, until forming ideal shape.In addition, the aluminium alloy plate in the Fiber Reinforced Metal Laminates is warm herein
At degree i.e. 120~140 DEG C, it is heat-treated (ageing treatment), the mechanical property of Fiber Reinforced Metal Laminates can be improved.To sum up, this hair
It is bright during carry out second level pressure dual-side at 120~140 DEG C, the uncured Fiber Reinforced Metal Laminates are solidified simultaneously, at
Shape and heat treatment realize solidification/forming/heat treatment process integration of Fiber Reinforced Metal Laminates, procedure of processing are greatly reduced,
Significantly improve production efficiency.
After obtaining solidified forming Fiber Reinforced Metal Laminates, the present invention carries out decompression processing under the conditions of 120~140 DEG C, until
The pressure of solidified forming Fiber Reinforced Metal Laminates upper and lower surfaces is down to 0MPa.
In the present invention, the time of the decompression processing is preferably 8~12min, further preferably 10min.
After the completion of decompression, the present invention continues to carry out isothermal holding to solidified forming Fiber Reinforced Metal Laminates, obtains carbon fiber Vygen
Belong to laminate curved-surface piece.
In the present invention, the temperature of the isothermal holding is preferably 120~170 DEG C, and further preferably 120~160 DEG C,
More preferably 120~140 DEG C；The time of the isothermal holding is preferably 6~18h, further preferably 8~16h, more preferably
10~15h.The present invention carries out isothermal holding under the above conditions, and the aluminium alloy plate in Fiber Reinforced Metal Laminates is made to be able to carry out timeliness
Processing is conducive to the mechanical property for improving the carbon fiber metal laminate curved-surface piece being finally prepared.
In the present invention, the side view of the carbon fiber metal laminate curved-surface piece is as shown in Figure 2.
The both ends of the uncured Fiber Reinforced Metal Laminates are preferably placed on the outside of the gas chamber of shaping dies by the present invention, are made
The carbon fiber metal laminate curved-surface piece for using the above method to be prepared is revolving body curved-surface piece.
In the present invention, the process for preparing carbon fiber metal laminate curved-surface piece by laminated fabric plymetal is as shown in Figure 3.
The curve of part represents temperature, the curve representative pressure of lower part on Fig. 3.T1 is 80~100 DEG C in Fig. 3, and T2 is 120~140
℃；P1 be 15~20MPa, P2 be (20MPa, 25MPa], PU be rolled-up stock upper surface to be added pressure；PL is under rolled-up stock to be added
Surface pressing；T1 be 15~40min, (t2-t1) be 15~30min, (t3-t2) be 30~50min, (t4-t3) be 8~
12min, (t5-t4) are 6~18h.
By Fig. 3 it can be clearly seen that solidifying in preparation method provided by the invention, shaping and be heat-treated while carrying out,
It is greatly reduced procedure of processing, significant raising processing efficiency.
Below in conjunction with the embodiment in the present invention, the technical solution in the present invention is clearly and completely described.
Embodiment 1
Will solid solution 2219 aluminium alloy plate of state (thickness 0.8mm, diameter 180mm) and carbon fibre composite (thickness 0.2mm,
Diameter 175mm) alternately superposition placement, from lower to upper successively are as follows: aluminium alloy plate, carbon fibre composite, aluminium alloy plate, aluminium alloy
Laying gluing film between plate and carbon fibre composite obtains uncured Fiber Reinforced Metal Laminates (overall thickness 1.8mm, diameter
For 180mm, radius-thickness ratio 0.01).Carbon fibre composite is the carbon fiber of impregnating resin, and wherein carbon fiber is that T300 type is orthogonal
Direction woven cloth, resin material are bisphenol A type epoxy resin.
Release agent is sprayed on mold, and uncured Fiber Reinforced Metal Laminates are placed in mold, is molded and is applied flanging
Power, pressure-pad-force numerical value are 20t；
By adding thermal resistance heating mould to 85 DEG C, while upper air pipeline and lower inlet duct road are made by pressure controller
It is passed through the equal high pressure nitrogen of pressure, when the time is to 20min, upper mold cavity pressure and lower die cavity pressure increase to 20MPa simultaneously,
Bisphenol A type epoxy resin softens at this time；
At 20MPa, continue to heat up, when total time is 40min, temperature is improved to 120 DEG C, and temperature is bisphenol-A at this time
Type ring oxygen resin cure temperature, epoxy resin start to solidify；
At 120 DEG C, keep upper mold cavity pressure constant, lower die continues slowly logical high pressure gas, lower die cavity pressure and gradually increases
Greatly, pressure difference is generated, pressure difference 5MPa, when total time is 70min, lower die cavity pressure increases to 25MPa.Fiber metal
Plate deforms under the action of pressure difference, mold；Under high temperature and pressure effect, resin material is gradually solidified into carbon fibre composite
Type obtains shaping fiber plymetal；Then it keeps mold temperature constant, closes air pump gradually pressure release, supreme lower die cavity pressure
It is 0.
At 120 DEG C, under upper and lower cavity pressure is 0, isothermal holding, isothermal holding time are carried out to shaping fiber plymetal
For 12h, isothermal holding process terminates, and closes heating device, and die sinking pickup obtains carbon fiber metal laminate curved-surface piece.
The surface quality of carbon fiber metal laminate curved-surface piece is high；Traditional three passages forming is reduced to one step forming, at
Shape is high-efficient；Shear strength between carbon fiber and aluminium alloy plate is 78MPa, improves about 16% compared to conventional method.In this hair
In bright, the test method of shear strength is GBT30969-2014.
Embodiment 2
Will solid solution 2219 aluminium alloy plate of state (thickness 0.8mm, diameter 180mm) and carbon fibre composite (thickness 0.4mm,
Diameter 175mm) alternately superposition placement, from lower to upper successively are as follows: aluminium alloy plate, carbon fibre composite, aluminium alloy plate, carbon fiber
Composite material, aluminium alloy plate, laying gluing film between aluminium alloy plate and carbon fibre composite, obtain uncured fibers gold
Belong to laminate (overall thickness 3.8mm, diameter 180mm, radius-thickness ratio 0.02).Carbon fibre composite is the carbon fiber of impregnating resin
Dimension, wherein carbon fiber is T500 type orthogonal direction woven cloth, and resin material is aminoepoxy resin.
Release agent is sprayed on mold, and uncured Fiber Reinforced Metal Laminates are placed in mold, is molded and is applied flanging
Power, pressure-pad-force numerical value are 40t；
By adding thermal resistance heating mould to 90 DEG C, while upper air pipeline and lower inlet duct road are made by pressure controller
It is passed through the equal high pressure nitrogen of pressure, when the time is to 30min, upper mold cavity pressure and lower die cavity pressure increase to 20MPa simultaneously,
Aminoepoxy resin softens at this time；
At 20MPa, continue to heat up, when total time is 50min, temperature is improved to 140 DEG C, and temperature is amino ring at this time
Oxygen resin cure temperature, epoxy resin start to solidify；
At 140 DEG C, keep upper mold cavity pressure constant, lower die continues slowly logical high pressure gas, lower die cavity pressure and gradually increases
Greatly, pressure difference is generated, when total time is 90min, lower die cavity pressure increases to 30MPa.Fiber Reinforced Metal Laminates are in pressure difference
Effect lower deformation, mold；Under high temperature and pressure effect, resin material gradually curing molding, is formed in carbon fibre composite
Fiber Reinforced Metal Laminates；Then it keeps mold temperature constant, closes air pump gradually pressure release, supreme lower die cavity pressure is 0.
At 140 DEG C, under upper and lower cavity pressure is 0, isothermal holding, isothermal holding time are carried out to shaping fiber plymetal
For 12h, isothermal holding process terminates, and closes heating device, and die sinking pickup obtains carbon fiber metal laminate curved-surface piece, carbon fiber Vygen
The surface quality for belonging to laminate curved-surface piece is good；Traditional three passages forming is reduced to one step forming, forming efficiency is high；Carbon fiber with
Shear strength between aluminium alloy plate is 83MPa, improves 18% compared to conventional method.
Embodiment 3
Will solid solution state 2A12 aluminium alloy plate (thickness 1.0mm, diameter 180mm) and carbon fibre composite (thickness 0.4mm,
Diameter 175mm) alternately superposition placement, from lower to upper successively are as follows: aluminium alloy plate, carbon fibre composite, aluminium alloy plate, carbon fiber
Composite material, aluminium alloy plate, carbon fibre composite, aluminium alloy plate, laying glue between aluminium alloy plate and carbon fibre composite
Glutinous film, obtains uncured Fiber Reinforced Metal Laminates (overall thickness 5.2mm, diameter 180mm, radius-thickness ratio 0.03).Carbon fiber
Composite material is the carbon fiber of impregnating resin, and wherein carbon fiber is T300 type orthogonal direction woven cloth, and resin material is amino ring
Oxygen resin.
Release agent is sprayed on mold, and uncured Fiber Reinforced Metal Laminates are placed in mold, is molded and is applied flanging
Power, pressure-pad-force numerical value are 70t；
By adding thermal resistance heating mould to 90 DEG C, while upper air pipeline and lower inlet duct road are made by pressure controller
It is passed through the equal high pressure nitrogen of pressure, when the time is to 40min, upper mold cavity pressure and lower die cavity pressure increase to 20MPa simultaneously,
Bisphenol A type epoxy resin softens at this time；
At 20MPa, continue to heat up, when total time is 70min, temperature is improved to 140 DEG C, and temperature is amino ring at this time
Oxygen resin cure temperature, epoxy resin start to solidify；
At 140 DEG C, keep upper mold cavity pressure constant, lower die continues slowly logical high pressure gas, lower die cavity pressure and gradually increases
Greatly, pressure difference is generated, when total time is 120min, lower die cavity pressure increases to 35MPa.Fiber Reinforced Metal Laminates are in pressure difference
Effect lower deformation, mold；Under high temperature and pressure effect, resin material gradually curing molding, is formed in carbon fibre composite
Fiber Reinforced Metal Laminates；Then it keeps mold temperature constant, closes air pump gradually pressure release, supreme lower die cavity pressure is 0.
At 140 DEG C, under upper and lower cavity pressure is 0, isothermal holding, isothermal holding time are carried out to shaping fiber plymetal
For 12h, isothermal holding process terminates, and closes heating device, and die sinking pickup obtains carbon fiber metal laminate curved-surface piece, carbon fiber Vygen
The surface quality for belonging to laminate curved-surface piece is good；Traditional three passages forming is reduced to one step forming, forming efficiency is high；Carbon fiber with
Shear strength between aluminium alloy plate is 85MPa, improves 20% compared to conventional method.
As can be seen from the above embodiments, the carbon fiber metal laminate that method provided by the invention is prepared, using high pressure gas
Body pressurization, avoids product from producing relative sliding with mold, product surface is not damaged in forming process, and surface quality significantly improves；
Solve the problems, such as that conventional method directlys adopt mould pressurizing and destroys product surface；And method provided by the invention will be traditional
The forming of three passages is reduced to one step forming, and the carbon fiber metal laminate curved-surface piece forming efficiency being prepared is higher, and this hair
Shear strength in the carbon fiber metal laminate of bright offer between carbon fiber and aluminium alloy plate is higher, up to 78~85MPa, compared to biography
Technique of uniting improves 16~20%.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (4)
1. a kind of solidification/forming/heat treatment integral preparation method of carbon fiber metal laminate curved-surface piece, comprising the following steps:
(1) by carbon fiber resin composite material and the alternately laminated setting of aluminium alloy plate, laminated fabric plymetal is obtained；The layer
The bottom and top layer of folded Fiber Reinforced Metal Laminates are aluminium alloy plate；
(2) the laminated fabric plymetal that the step (1) obtains is warming up to 80~100 DEG C, while to laminated fabric metal
Laminate carries out level-one pressure dual-side, obtains softening fibre plymetal；The direction of the pressure dual-side is laminated fabric metal layer
The normal direction of plate upper and lower surfaces；The pressure for being applied to upper and lower surfaces is equal, is 15~20MPa；
(3) under 15~20MPa pressure, the softening fibre plymetal that the step (2) obtains is warming up to 120~140 DEG C,
Obtain uncured Fiber Reinforced Metal Laminates；
(4) at 120~140 DEG C, the upper and lower surfaces of the uncured Fiber Reinforced Metal Laminates first obtained to the step (3) are carried out
Second level pressure dual-side, the pressure for being applied to upper and lower surfaces is unequal, uncured Fiber Reinforced Metal Laminates start deformation and by
Gradually mold；The direction of exerting pressure of the second level pressure dual-side is the normal direction of uncured Fiber Reinforced Metal Laminates upper and lower surfaces；Then
After being depressurized to 0MPa under the conditions of 120~140 DEG C, continue isothermal holding, obtains carbon fiber metal laminate curved-surface piece；
The pressure that upper surface is applied in the step (4) is 15~20MPa；
The pressure that lower surface is applied in the step (4) is 20~25MPa, does not include 20MPa；
The temperature of isothermal holding is 120~170 DEG C in the step (4), and the time of isothermal holding is 6~18h；
Step (2)~(4) carry out in shaping dies, by the venthole of shaping dies upper and lower surface be passed through gas come
Control pressure size.
2. preparation method according to claim 1, which is characterized in that carbon fiber resin composite material in the step (1)
It is dried to obtain after being impregnated in resin by carbon fiber；The resin includes bisphenol A type epoxy resin or aminoepoxy resin；It is described
Aluminium alloy plate is solid solution state aluminium alloy plate.
3. preparation method according to claim 1 or 2, which is characterized in that the number of plies of aluminium alloy plate is in the step (1)
2~5.
4. preparation method according to claim 1, which is characterized in that uncured Fiber Reinforced Metal Laminates in the step (4)
Uncured Fiber Reinforced Metal Laminates are cured, shape during second level pressure dual-side, with this condition, uncured fibre metal
Aluminium alloy plate in laminate synchronizes ageing treatment.
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| CN110843285B (en) * | 2019-10-24 | 2022-06-17 | 苏州普热斯勒先进成型技术有限公司 | Carbon fiber composite structural member with multilayer structure and preparation method thereof |
| CN110788190A (en) * | 2019-10-25 | 2020-02-14 | 华中科技大学 | Method for hot stamping part by adopting aluminum alloy plate and carbon fiber composite material |
| CN110934395A (en) * | 2019-11-20 | 2020-03-31 | 嘉丰工业科技（惠州）有限公司 | Fiber-reinforced aluminum alloy draw-bar box and manufacturing method thereof |
| CN110871578A (en) * | 2019-11-22 | 2020-03-10 | 北京航空航天大学 | Integrated process for preparing and forming fiber metal laminate based on liquid filling forming |
| CN111231366B (en) * | 2020-01-14 | 2021-06-01 | 上海交通大学 | CFRP/aluminum alloy hot forming quenching aging co-curing integrated forming method |
| CN112339306B (en) * | 2020-10-13 | 2022-06-07 | 武汉理工大学 | Necking processing preparation method of fiber-metal tube |
| CN114434834B (en) * | 2020-10-20 | 2023-06-02 | 河北工业大学 | Variable-energy-rate surface force loading forming method for fiber metal laminate heat medium |
| CN113580691B (en) * | 2021-07-27 | 2022-09-30 | 燕山大学 | Aluminum-based carbon fiber metal laminate member and forming preparation method thereof |
| CN115122720B (en) * | 2022-06-28 | 2023-03-10 | 北京航空航天大学 | Fiber reinforced metal laminate and method of forming the same |
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