CN108583485A - A kind of more born of the same parents' metal-based carbon fiber composite thin wall endergonic structures and its preparation process - Google Patents
A kind of more born of the same parents' metal-based carbon fiber composite thin wall endergonic structures and its preparation process Download PDFInfo
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- CN108583485A CN108583485A CN201810515236.7A CN201810515236A CN108583485A CN 108583485 A CN108583485 A CN 108583485A CN 201810515236 A CN201810515236 A CN 201810515236A CN 108583485 A CN108583485 A CN 108583485A
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- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 221
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 221
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 217
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 175
- 239000002184 metal Substances 0.000 title claims abstract description 175
- 239000002131 composite material Substances 0.000 title claims abstract description 52
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims description 21
- 239000000835 fiber Substances 0.000 claims description 14
- 229910052799 carbon Inorganic materials 0.000 claims description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000010521 absorption reaction Methods 0.000 claims description 7
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 6
- 238000007711 solidification Methods 0.000 claims description 6
- 230000008023 solidification Effects 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 239000003822 epoxy resin Substances 0.000 claims description 5
- 229920000647 polyepoxide Polymers 0.000 claims description 5
- 238000004321 preservation Methods 0.000 claims description 4
- 238000007493 shaping process Methods 0.000 claims description 4
- 239000000758 substrate Substances 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 230000002159 abnormal effect Effects 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims description 2
- 229920001169 thermoplastic Polymers 0.000 claims description 2
- 239000004416 thermosoftening plastic Substances 0.000 claims description 2
- 238000006664 bond formation reaction Methods 0.000 claims 1
- 239000011208 reinforced composite material Substances 0.000 claims 1
- 238000013461 design Methods 0.000 abstract description 13
- 230000008901 benefit Effects 0.000 abstract description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 210000000988 bone and bone Anatomy 0.000 abstract description 5
- 238000012545 processing Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 3
- 150000001875 compounds Chemical class 0.000 description 27
- 239000010410 layer Substances 0.000 description 23
- 229910000838 Al alloy Inorganic materials 0.000 description 17
- 230000000694 effects Effects 0.000 description 14
- WSNMPAVSZJSIMT-UHFFFAOYSA-N COc1c(C)c2COC(=O)c2c(O)c1CC(O)C1(C)CCC(=O)O1 Chemical compound COc1c(C)c2COC(=O)c2c(O)c1CC(O)C1(C)CCC(=O)O1 WSNMPAVSZJSIMT-UHFFFAOYSA-N 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 7
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000013475 authorization Methods 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 229910001094 6061 aluminium alloy Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000011162 core material Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 229910001051 Magnalium Inorganic materials 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- -1 almag etc.) Substances 0.000 description 1
- 238000000418 atomic force spectrum Methods 0.000 description 1
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- 238000001723 curing Methods 0.000 description 1
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- 238000005457 optimization Methods 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/03—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by material, e.g. composite
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/24—Arrangements for mounting bumpers on vehicles
- B60R19/26—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means
- B60R19/34—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means destroyed upon impact, e.g. one-shot type
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
Abstract
A kind of more born of the same parents' metal-based carbon fiber composite thin wall endergonic structures of present invention offer and its preparation process, the outer tube that the endergonic structure is mainly made of metal tube or metal-based carbon fiber multiple tube and inner tube matched combined that more carbon fiber pipes or metal-based carbon fiber multiple tube are constituted at the nested package inner tube of outer tube structure type, it is interconnected to Multi cell structure by way of bonding or metallic support support between the outer wall of more said inner tubes, the Multi cell structure is connected by being bonded with the inner wall of the outer tube again.Structure of the present invention has many advantages, such as, compatibility of deformation bigger than energy-absorbing and guided bone is strong, design scheme is flexible, can not only reduce the weight of endergonic structure, but also can improve the crashworthiness of endergonic structure, effectively realizes the safety of automobile and light-weighted target.Preparation process of the present invention, procedure of processing is few, process time is short, suitable for mass production.
Description
Technical field
The present invention relates to the related fields such as automobile making and automotive crash safety more particularly to a kind of more born of the same parents' Metal Substrate carbon fibers
Tie up composite thin wall car anti-collision endergonic structure and its preparation process.
Background technology
Light-weight design and the two big eternal targets that crashworthiness is that auto industry is pursued, the endergonic structure of automobile
It should meet with enough ratio energy absorption abilities, meet light-weight feature again, to reach the target of energy-saving and emission-reduction, so its
Structure design is particularly important in the automotive industry.The crashworthiness endergonic structure of automobile is predominantly connected to above front anticollision beam of automobile
Energy-absorption box now currently, the materials most of crashworthiness endergonic structure forms for single metal toughness material manufacture, and is based on same material
Carry out structural dimension optimization；Authorization Notice No. is that the patent of invention of CN103878554B discloses a kind of thin-walled of gradient distribution distribution
The processing method of endergonic structure realizes thickness gradientization processing using TRB plates, and by optimizing endergonic structure axially
Thickness change to reach best than energy-absorbing value；Authorization Notice No. is that the patent of invention of CN105398099B discloses one kind entirely
Metal gradient honeycomb complex structure, by optimizing the wall thickness of each hexagon unit cell along the z-axis direction, to reach best
Energy-absorbing effect and most light weight.Although above-mentioned had many advantages, such as by the endergonic structure that Ductile Metals are manufactured into,
Such as compatibility of deformation and guided bone are strong, manufacture is easy, is at low cost, but Ductile Metals are since its density is larger, than inhaling
The defects of energy effect is limited has certain limitation to make the promotion of the further light-weight design of automobile and crashworthiness
With.
Now currently, emerging composite material has the advantage that ductile metal does not have.As thermosetting property fibre reinforced is compound
Material is widely used in aerospace and automotive field due to the advantages that its density is small, intensity is big.Carbon fiber endergonic structure
Due to laying and the manufacturing method of bonding, during structure is crushed be easier generating material inside phase mutual friction and
It mutually squeezes, so comparing energy-absorbing with higher.Authorization Notice No. is that the patent of invention of CN104842593B discloses a kind of tool
The carbon fiber honeycomb preparation method for having multiple continuous semi-hexagon shape shape honeycomb components, using the laminated side for stacking simultaneously hot pressing
Formula prepares full carbon fiber core material, overcomes the complicated technology that pultrusion single-piece is bonded again, provides the carbon fiber of simple possible
Honeycomb core material preparation method.However, due to the compatibility of deformation of endergonic structure made of full carbon fibre material and guided bone phase
It is lower than the endergonic structure made of ductile metal.When designing automobile-used crashworthiness thin-shell absorption structure, if by ductile metal
Advantage combines with the advantage of carbon fiber, prepares a kind of metal-based carbon fiber Multi cell structure, can obtain with bigger than inhaling
Can crashworthiness structure, and improve its toughness, can further take into account and be promoted automotive light weight technology and crashworthiness
Advantage.
Invention content
According to technical problem set forth above, and provide a kind of more born of the same parents' metal-based carbon fiber composite thin wall endergonic structures and its
Preparation process.The present invention mainly utilizes metal or the compound outer tube of metal-based carbon fiber and more carbon fibers or metal-based carbon fiber
The structure type of compound inner tube matched combined, between inner tube bond or metallic support support by way of be interconnected to more born of the same parents
Structure, then be connected with outer tube wall, different parameters is configured according to the energy-absorbing demand of car crass, to realize different parameters
Proportioning has different energy-absorbing effects, portable construction, compatibility of deformation and the advantages that guided bone is strong, design scheme is flexible.
The technological means that the present invention uses is as follows：
A kind of more born of the same parents' metal-based carbon fiber composite thin wall endergonic structures, which is characterized in that the endergonic structure is mainly by gold
The outer tube that category pipe or metal-based carbon fiber multiple tube are constituted constitutes interior with more carbon fiber pipes or metal-based carbon fiber multiple tube
Pipe matched combined wraps up the structure type of inner tube at outer tube nesting, passes through bonding or metal branch between the outer wall of more said inner tubes
The mode of frame support is interconnected to Multi cell structure, and the Multi cell structure is connected by being bonded with the inner wall of the outer tube again.
Further, the material of the inner and outer tubes of the endergonic structure, number, cross sectional shape, size and the row of inner tube
The structural parameters such as row mode, carbon fiber laying number and direction, the nested mode of carbon fibre composite pipes, the nested number of plies, thickness, with
And the number of plies and the structural parameters such as thickness of metal-based carbon fiber multiple tube, it is arranged according to the different energy-absorbing demands of car crass, no
Same parameters adjusting has different energy-absorbing effects；And values of the structural parameters and matching feature are optimized by energy-absorbing demand
It arrives.Carbon fiber metal base composite pipe is prepared by hot moulding method.
Further, the material of said inner tube and outer tube can be selected metal (high-strength steel, almag etc.), carbon fiber pipe or
The carbon fiber of one or more kinds of combinations in metal-based carbon fiber multiple tube, carbon fiber pipe or metal-based carbon fiber multiple tube
Fiber lay down number of layers, laying direction and the thickness parameter for tieing up part are arranged according to the energy-absorbing demand of car crass.
Further, the cross sectional shape of said inner tube and outer tube, geometric dimension are arranged according to the energy-absorbing demand of car crass,
The cross sectional shape of said inner tube and outer tube includes but not limited to circle, triangle, quadrangle, hexagon, octagon or decagon
Etc., and the combining form of homotype or abnormal shape may be used.
Further, the endergonic structure is more born of the same parents that an independent outer tube nesting wraps up that more inner tubes constitute enclosed cross
Type of attachment, wherein the number N of said inner tube is selected according to energy absorption size, N >=3.
The invention also discloses a kind of preparation process of above-mentioned more born of the same parents' metal-based carbon fiber composite thin wall endergonic structures,
It is characterized in that：The endergonic structure includes multiple cell space units with identical or different cross sectional shape, continuous, multiple described
Cell space unit is corresponding in turn to arrangement and fixed bonding forms the cell structure that cross section is polygon at the bonding plane of coincidence,
In：The metal-based carbon fiber multiple tube is made of hot press method, using epoxy resin adhesive, specifically includes following step
Suddenly：
Step S1：Mold is preheated, releasing agent is coated, the carbon fiber prepreg for setting the number of plies, laying direction is laid
Or it is wrapped in given cross-sectional shape (including but not limited to circle, triangle, quadrangle, hexagon, octagon and decagon etc.)
Heating mould outer wall on, auxiliary material is then covered with according to technological requirement, completes the preparation before mold；
Step S2：It is nested in carbon fiber in carbon fiber prepreg external coating epoxy resin, then by the metal tube of pre-set dimension
It ties up in laying, wherein metal pipe outer wall contact surface needs to spray remover；
Step S3：Outer layer pressurize fixture is installed again to fix, technological parameter is set, and starts former and carries out heated mould
Pressure；
Step S4：It is demoulded after cooling and metal-based carbon fiber composite pipe is made, mold is purged；
Step S5：Step S1-S4 is repeated, until preparing required amount of cell space unit；
Step S6：Metal-based carbon fiber cell space unit bonding plane obtained is polished, after being used in combination acetone to clean, in phase
It answers and is bonded successively under fixture and environment temperature, or Multi cell structure is interconnected to by the method that metallic support supports, and lead to
The method for crossing bonding is connected with outer tube wall；
Step S7：Shaping is processed to more born of the same parents' metal-based carbon fiber composite thin wall endergonic structures obtained, it is final to obtain
Required part product.
Further, the former technological parameter is：Preheating temperature is 80 DEG C, and the heat preservation solidification time is：20-40 points
Clock, then cure under pressure is to 120-150 DEG C, 60-120 minutes heat preservation solidification time, pressure intensity parameter 0.5-0.7MPa；Realize carbon
Fiber laying integrally cures with metal tube, after demoulding and then obtains the compound pipe unit of metal-based carbon fiber.
Further, carbon fiber prepreg uses thermoplastic shape carbon fibre reinforced composite.
More existing technology is compared, and the present invention uses two kinds of materials simultaneously, that is, uses ductile metal as the material of outer tube,
And use material of the carbon fiber as inner tube, by metal outer pipe wrap up more carbon fibers or metal-based carbon fiber inner tube formed it is more
Born of the same parents' crashworthiness endergonic structure interconnects into Multi cell structure between carbon fiber pipe by the method for bonding or metallic support support, and
It is connected with metal outer pipe inner wall by being bonded.The design parameter of anti-collision energy absorption structure, as metal tube material and cross sectional shape,
Size, the number of carbon fiber pipe, cross sectional shape, size and arrangement mode, the laying number of carbon fiber and direction etc. are touched with automobile
The energy-absorbing demand hit is related, and different parameters adjustings has different energy-absorbing effects, and parameter value is optimized by energy-absorbing demand
It obtains, so that structure compares energy-absorbing with maximum.This structure is annexed simultaneously made of Ductile Metals and carbon fibre material
The advantages of crashworthiness endergonic structure.
The present invention has many advantages, such as, portable construction bigger than energy-absorbing, and compatibility of deformation and guided bone are strong, design scheme is flexible,
The safety of automobile and light-weighted target are realized while can be effectively.
The present invention can be widely popularized in the related fields such as automobile making and automotive crash safety based on the above reasons.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to do simply to introduce, it should be apparent that, the accompanying drawings in the following description is this hair
Some bright embodiments for those of ordinary skill in the art without having to pay creative labor, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 a are the schematic diagram one of Multi cell structure in the more born of the same parents' metal-based carbon fiber composite thin wall endergonic structures of the present invention, are used
Metal outer pipe wrap carbon fiber inner tube group.
Fig. 1 b are the schematic diagram two of Multi cell structure in the more born of the same parents' metal-based carbon fiber composite thin wall endergonic structures of the present invention, are used
The compound outer tube wrap carbon fiber inner tube group of metal-based carbon fiber.
Fig. 1 c are the schematic diagram two of Multi cell structure in the more born of the same parents' metal-based carbon fiber composite thin wall endergonic structures of the present invention, are used
The compound outer tube coated metal base carbon fibre inner tube group of metal-based carbon fiber.
Fig. 2 is more born of the same parents' metal-based carbon fiber composite thin wall endergonic structures of different cross section shape, wherein the section (a) is circle
Shape, (b) section be square, (c) section be hexagon, (d) section be octagon, (e) section be square, inner tube group section
For rectangular and circular hybrid combining.
Fig. 3 is the structure of the different designs project plan comparison of more born of the same parents' metal-based carbon fiber composite thin wall endergonic structures in embodiment
Schematic diagram, wherein (a) is A conceptual designs, and inner tube number is 3, is (b) B conceptual designs, and inner tube number is 5, is (c) C conceptual designs,
Inner tube number is 7.
Fig. 4 is carbon fiber inner tube I " 40, carbon fiber inner tube II " 47, carbon fiber in more born of the same parents' metal-based carbon fiber pipes in embodiment
Tie up the carbon fiber laying feature of inner tube III " 54.
Fig. 5 is the processing flow of the metal-based carbon fiber pipe of the more born of the same parents' metal-based carbon fiber composite thin wall endergonic structures of the present invention
Figure.
Fig. 6 is the temperature profile of metal-based carbon fiber pipe hot moulding.
Fig. 7 is the manufacturing flow chart of the more born of the same parents' metal-based carbon fiber composite thin wall endergonic structures of the present invention.
Fig. 8 is more born of the same parents' metal-based carbon fiber composite thin wall endergonic structure energy-absorbing effect figures of different schemes in embodiment.
In figure：1, metal outer pipe I；2, carbon fiber inner tube I；3, the compound outer tube of metal-based carbon fiber I；4, metal-based carbon fiber
The metal outer I of compound outer tube I 3；5, the carbon fiber internal layer I of the compound outer tube of metal-based carbon fiber I 3；6, carbon fiber inner tube II；7、
The compound outer tube of metal-based carbon fiber II；8, the metal outer II of the compound outer tube of metal-based carbon fiber II 7；9, metal-based carbon fiber is multiple
Close the carbon fiber internal layer II of outer tube II 7；10, metal-based carbon fiber inner tube III；11, outside the metal of metal-based carbon fiber inner tube III 10
Layer III；12, the carbon fiber internal layer III of metal-based carbon fiber inner tube III 10；13, the outer diameter I of metal outer pipe；14, the thickness of metal outer pipe
Degree I；15, the outer diameter II of carbon fiber inner tube；16, the thickness II of carbon fiber inner tube；17, metal outer pipe I '；18, carbon fiber inner tube
Ⅰ’；19, metal outer pipe II '；20, carbon fiber inner tube II '；21, metal outer pipe III '；22, carbon fiber inner tube III '；23, outside metal
Pipe IV '；24, carbon fiber inner tube IV '；25, metal outer pipe V '；26, form of tubes I in carbon fiber；27, form of tubes II in carbon fiber；
28, the metal outer pipe length of side；29, the carbon fiber inner tube length of side；30, heating mould；31, outer layer pressurize fixture (external mold)；32, metal
Pipe；33, releasing agent；34, carbon fiber prepreg；35, the carbon fiber internal layer after curing；36, metal-based carbon fiber composite pipe；
37, Multi cell structure I；38, the height I of Multi cell structure I 37；39, metal (aluminium alloy) outer tube I " of Multi cell structure I 37；40, more born of the same parents
The carbon fiber inner tube I " of structure I 37；41, the outer diameter I ' of metal (aluminium alloy) outer tube I " 39；42, the outer diameter of carbon fiber inner tube I " 40
Ⅰ”；43, the internal diameter I ' of carbon fiber inner tube I " 40；44, Multi cell structure II；45, the height II of Multi cell structure II 44；46, more born of the same parents' knots
Metal (aluminium alloy) outer tube II " of structure II 44；47, the carbon fiber inner tube II " of Multi cell structure II 44；48, metal (aluminium alloy) is outside
The outer diameter II ' of pipe II " 46；49, the outer diameter II " of carbon fiber inner tube II " 47；50, the internal diameter II ' of carbon fiber inner tube II " 47；51、
Multi cell structure III；52, the height III of Multi cell structure III 51；53, metal (aluminium alloy) outer tube III " of Multi cell structure III 51；54, more
The carbon fiber inner tube III " of born of the same parents' structure III 51；55, the outer diameter III ' of metal (aluminium alloy) outer tube III " 53；56, carbon fiber inner tube III "
54 outer diameter III "；57, the internal diameter III ' of carbon fiber inner tube III " 54；58, carbon fiber inner tube I " 40, carbon fiber inner tube II " 47 and carbon
The inner wall of fiber inner tube III " 54.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
The every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
A kind of more born of the same parents' metal-based carbon fiber composite thin wall endergonic structures of present invention offer and its preparation process.
As shown in Figure 1a, more born of the same parents' metal-based carbon fiber composite thin wall endergonic structures can be by metal outer pipe I 1 and carbon fiber
Pipe I 2 forms, and is embodied as metal outer pipe I 1 and wraps up the carbon fiber inner tube group that the more bondings of carbon fiber inner tube I 2 are formed, carbon fiber
It is Nian Jie with the inner wall of metal outer pipe I 1 to tie up inner tube group.
As shown in Figure 1 b, more born of the same parents' metal-based carbon fiber composite thin wall endergonic structures can be by the compound outer tube of metal-based carbon fiber
I 3 form with carbon fiber inner tube I 6, and the compound outer tube I 3 of metal-based carbon fiber is made of metal outer I 4 and carbon fiber internal layer I 5, have
Body is presented as that the compound outer tube I 3 of metal-based carbon fiber wraps up the carbon fiber inner tube group that the more bondings of carbon fiber inner tube I 6 are formed, carbon fiber
Inner wall (inner wall of carbon fiber internal layer I 5) for tieing up the compound outer tube of inner tube group and metal-based carbon fiber I 3 is Nian Jie.
As illustrated in figure 1 c, more born of the same parents' metal-based carbon fiber composite thin wall endergonic structures can be by the compound outer tube of metal-based carbon fiber
II 7 form with the compound inner tube III 10 of metal-based carbon fiber, and the compound outer tube II 7 of metal-based carbon fiber is by metal outer II 8 and carbon fiber
It ties up internal layer II 9 to form, the compound inner tube III 10 of metal-based carbon fiber is made of metal outer III 11 and carbon fiber internal layer III 12.More born of the same parents
The number N of the inner tube of metal-based carbon fiber composite thin wall endergonic structure is selected according to energy absorption size, and N >=3.
In addition, the inner and outer pipe of more born of the same parents' metal-based carbon fiber composite thin wall endergonic structures can be metal, carbon fiber pipe or gold
Any form and the combination for belonging to base carbon fibre multiple tube, such as the combination of metal outer pipe and carbon fiber pipe, metal outer pipe and Metal Substrate
The combination of the compound inner tube of carbon fiber, the combination etc. of the compound outer tube of metal-based carbon fiber and the compound inner tube of metal-based carbon fiber；It is right
In the compound outer tube and inner tube of more born of the same parents' metal-based carbon fiber composite thin wall endergonic structures, the nested number of plies of metal layer and carbon fiber layer
It can arbitrarily select, and the nesting order of metal layer and carbon fiber layer can arbitrarily combining form exist, it is more to realize
The energy-absorbing effect of type, such as package are the sandwich interlayer form of tubes of metal-carbon fiber-metal.
The metal outer pipe I 1 and the compound outer tube of metal-based carbon fiber of more born of the same parents' metal-based carbon fiber composite thin wall endergonic structures
I 3, the metal outer I 4 in the compound outer tube of metal-based carbon fiber II 7, metal outer II 8 material can be that high-strength steel, magnalium close
Gold etc., the metal outer III in the compound inner tube of the metal-based carbon fibers of more born of the same parents' metal-based carbon fiber composite thin wall endergonic structures III 10
11 material can be high-strength steel, almag etc.；The outer tube dimensioning of more born of the same parents' metal-based carbon fiber composite thin wall endergonic structures
The thickness I 14 of very little such as outer tube height, the outer diameter I 13 of metal outer pipe, metal outer pipe is related to the requirement of the collision energy-absorbing of automobile.
Carbon fiber inner tube I 2, carbon fiber inner tube II 6 and the metal-based carbon fiber of more born of the same parents' metal-based carbon fiber composite thin wall endergonic structures
Compound outer tube II 7 and the carbon fiber internal layer II 9 of metal-based carbon fiber inner tube III 10, the laying quantity of carbon fiber internal layer III 12 and paving
The height of the geometric dimension such as inner tube of layer direction (such as orthogonal laying, 0 ° of laying, 45 ° of intersection layings and combinations thereof) and inner tube
The thickness II 16 etc. of degree, the outer diameter II 15 of carbon fiber inner tube, carbon fiber inner tube is related to the requirement of the collision energy-absorbing of automobile.In addition,
Different inner and outer pipes geometric dimensions and carbon fiber laying feature can be combined with each other, to realize a greater variety of energy-absorbing effects.
As shown in Fig. 2, the outer tube of more born of the same parents' metal-based carbon fiber composite thin wall endergonic structures and the cross sectional shape of inner tube can be with
For circle, (shown in such as Fig. 2 (a), the metal outer pipe I ' 17 of Multi cell structure and the cross sectional shape of carbon fiber inner tube I ' 18 are circle
Shape), (shown in such as Fig. 2 (b), the metal outer pipe II ' 19 and the cross sectional shape of carbon fiber inner tube II ' 20 of Multi cell structure are equal for quadrangle
For quadrangle), hexagon (shown in such as Fig. 2 (c), the section of the metal outer pipe III ' 21 and carbon fiber inner tube III ' 22 of Multi cell structure
Shape is hexagon) and octagon (shown in such as Fig. 2 (d), metal outer pipe IV ' 23 and the carbon fiber inner tube IV ' of Multi cell structure
24 cross sectional shape is octagon) etc.；The cross sectional shape of more born of the same parents' metal-based carbon fiber composite thin wall endergonic structures can also be set
It is calculated as the mixing shape more than a kind of shape, as shown in Fig. 2 (e), the metal outer pipe V ' 25 of wherein Multi cell structure is designed as four sides
Shape, inner tube are divided into two kinds of cross sectional shapes, i.e., the carbon fiber inner tube of form of tubes I26 and circular cross-section in the carbon fiber of quadrangular section
Form II27.The cross section geometric parameter of each Multi cell structure, in the hexagonal metallic outer tube length of side 28 and hexagonal carbon fiber
Tube edge length 29 etc. is related to the collision energy-absorbing demand of automobile.In addition, the inner and outer pipes in different Multi cell structures can have it is a variety of
The combination of different cross sectional shapes and its geometric parameter, to realize a greater variety of energy-absorbing effects.
Metal-based carbon fiber multiple tube (including outer tube and inner tube) can be fabricated by hot moulding manufacturing method, such as be schemed
Shown in 5, it can specifically be divided into following steps：
Step S1：Heating mould 30 is preheated, preheating temperature is about 80 DEG C, then by the outer surface of heating mould 30
The carbon fiber prepreg 34 for setting the number of plies, laying direction is laid or is wrapped in preset cross sectional shape by smearing release agent 33
On 30 outer wall of heating mould of (including but not limited to circle, triangle, quadrangle, hexagon, octagon and decagon etc.), such as
Shown in Fig. 5 (a), auxiliary material is then covered with according to technological requirement, completes the preparation before mold；
Step S2：It is nested in 34 external coating epoxy resin of carbon fiber prepreg, then by the metal tube 32 of pre-set dimension
In carbon fiber laying, as shown in Fig. 5 (b), wherein 32 outer wall contact surface of metal tube needs to spray remover 33；
Step S3：The fixation of outer layer pressurize fixture 31 is installed, as shown in Fig. 5 (c), technological parameter is set, starts molding and sets
It is standby and carry out heating and mould pressing, as shown in Fig. 5 (d), wherein label 35 is the carbon fiber internal layer after solidification, the ginseng of hot embossing process
Number setting is as shown in Figure 6；
Step S4：It is demoulded after cooling and metal-based carbon fiber composite pipe 36 is made, shaping is processed to it, and to mold
It is purged；
Step S5：Step S1-S4 is repeated, until preparing required amount of metal-based carbon fiber composite pipe 36.
Above-mentioned more born of the same parents' metal-based carbon fiber composite thin wall endergonic structures are further explained with reference to specific example
Design and its manufacture case and energy-absorbing effect compare.
Embodiment
The present embodiment relates generally to the carbon fiber inner tube number pair in more born of the same parents' metal-based carbon fiber composite thin wall endergonic structures
The influence of energy-absorbing effect.
More born of the same parents' metal-based carbon fiber structures are made of 6061-T4 aluminium alloys outer tube and carbon fiber inner tube, can specifically be divided
For tri- kinds of option A, option b, scheme C different design schemes.
Wherein, the height I 38 of Multi cell structure I 37 is 80mm, the carbon fiber inner tube I " 40 in Multi cell structure I 37 in option A
The thickness of number N=3, the aluminium alloy outer tube I " 39 in Multi cell structure I 37 is 2mm, and the outer diameter I ' 41 of aluminium alloy outer tube I " 39 is
58mm, as shown in Fig. 3 (a).
The height II 45 of Multi cell structure II 44 is 100mm, the carbon fiber inner tube II " 47 in Multi cell structure II 44 in option b
The thickness of number N=5, the aluminium alloy outer tube II " 46 in Multi cell structure II 44 is 2mm, the outer diameter II ' of aluminium alloy outer tube II " 46
48 be 73mm, as shown in Fig. 3 (b).
The height III 52 of Multi cell structure III 51 is 110mm, the carbon fiber inner tube III " 54 in Multi cell structure III 51 in scheme C
The thickness of number N=7, the aluminium alloy outer tube III " 53 in Multi cell structure III 51 is 2mm, the outer diameter III ' of aluminium alloy outer tube III " 53
55 be 80mm, as shown in Fig. 3 (c).
In all schemes, the outer diameter I " 42 of carbon fiber inner tube I " 40, the outer diameter II " 49 and carbon of carbon fiber inner tube II " 47
The outer diameter III " 56 of fiber inner tube III " 54 is 25mm, the internal diameter I ' 43 of carbon fiber inner tube I " 40, carbon fiber inner tube II " 47 it is interior
Diameter II ' 50 and the internal diameter III ' 57 of carbon fiber inner tube III " 54 are 24mm；Within each scheme, the size of carbon fiber inner tube is equal
Unanimously.Carbon fiber inner tube I " 40, carbon fiber inner tube II " 47 and carbon fiber inner tube III " 54 use T300 thermosetting property carbon fibre initial rinses
Material is formed by heat cure, and 4 layers are spread in a manner of orthogonal laying, as shown in figure 4, in all schemes, the paving of carbon fiber inner tube
Layer feature is consistent, wherein label 58 refers to carbon fiber inner tube I " 40, carbon fiber inner tube II " 47 or carbon fiber inner tube III " 54
Inner wall.
As shown in fig. 7, for involved by said program A, option b, scheme C Multi cell structure I 37, Multi cell structure II 44,
The preparation process of Multi cell structure III 51 includes the following steps：
Specifically by taking the Multi cell structure I 37 in option A as an example：
Step S1, mechanical processing is carried out to 6061 aluminum pipes (metal (aluminium alloy) outer tube I " 39) and makes up to each scheme
Size requirement；
Step S2,6061 aluminum pipes (metal (aluminium alloy) outer tube I " 39) progress heat treatment process is reached to be more in line with and is originally ground
Study carefully the 6061-T4 states of experiment；
Step S3, carbon fiber inner tube I " 40 (single tube) is polished and is used according to number specified by option A (N=3)
Acetone clean, be then attached on fixture and be mutually bonded, formed three categories of overseas Chinese's carbon fiber inner tube group, then with after Overheating Treatment
6061-T4 aluminum pipes (metal (aluminium alloy) outer tube I " 39) carry out with merge bonding, solidification thermostat temperature be 60 DEG C, hardening time
About 1h；
Step S4, it is cooled to after room temperature and shaping is processed to three categories of overseas Chinese's structure, quality examination obtains final required knot
Structure.
In order to compare the energy-absorbing effect of three kinds of schemes, the Multi cell structure involved by three kinds of schemes is crushed respectively,
The load of the structural member in Collapse of Concrete in each scheme and the axial conquassation curve of mechanism member are acquired as evaluation energy-absorbing effect
Index, while identical with III " 53 size of aluminium alloy outer tube in scheme C 6061-T4 aluminum pipes are crushed as a contrast, in scheme C
Multi cell structure III 51 and the conquassation curve of aluminum pipe are indicated that the conquassation curve of each scheme is indicated by Fig. 8 (b) by Fig. 8 (a).
From Fig. 8 (a) as can be seen that compared with the identical aluminum pipe conquassation of scheme C sizes, more born of the same parents' Metal Substrates in scheme C
Carbon fiber composite thin wall endergonic structure has higher conquassation force curve, Collapse of Concrete relatively stable；It can from Fig. 8 (b)
Go out, the peak force of Multi cell structure has obvious increase with the increase of caliber in all schemes.Wherein, the maximum side of peak force
The peak force of Multi cell structure III 51 involved by case C is respectively involved by Multi cell structure I 37 and option b involved by option A
1.4 times of Multi cell structure II 44 and 1.8 times；Conquassation enters the stable conquassation stage when reaching 15mm can for stablizing the conquassation stage
To find out that the crushing force of the Multi cell structure III 51 involved by scheme C is more than the Multi cell structure II 44 involved by option b, and scheme
The crushing force of Multi cell structure II 44 involved by B is more than the Multi cell structure I 37 involved by option A.
Above experimental phenomena can prove：When overall dimensions (entire outer diameter and whole height of structure) phase of structure
Meanwhile include carbon fiber inner tube group more born of the same parents' metal-based carbon fiber composite thin wall endergonic structure part ratios do not include carbon fiber inner tube
The metal outer pipe disruption properties higher of group；The energy-absorbing effect of more born of the same parents' metal-based carbon fiber composite thin wall endergonic structures and its internal institute
Including carbon fiber inner tube number it is proportional.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that：Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement；And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (8)
1. a kind of more born of the same parents' metal-based carbon fiber composite thin wall endergonic structures, which is characterized in that the endergonic structure is mainly by metal
The inner tube that the outer tube that pipe or metal-based carbon fiber multiple tube are constituted is constituted with more carbon fiber pipes or metal-based carbon fiber multiple tube
Matched combined wraps up the structure type of inner tube at outer tube nesting, passes through bonding or metallic support between the outer wall of more said inner tubes
The mode of support is interconnected to Multi cell structure, and the Multi cell structure is connected by being bonded with the inner wall of the outer tube again.
2. more born of the same parents' metal-based carbon fiber composite thin wall endergonic structures according to claim 1, which is characterized in that the energy-absorbing
The material of the inner and outer tubes of structure, number, cross sectional shape, size and the arrangement mode of inner tube, carbon fiber laying number and side
To the nested mode of, carbon fibre composite pipes, the nested number of plies, the number of plies and thickness of thickness parameter and metal-based carbon fiber multiple tube
Parameter is spent, is arranged according to the different energy-absorbing demands of car crass.
3. more born of the same parents' metal-based carbon fiber composite thin wall endergonic structures according to claim 2, which is characterized in that said inner tube
With one or more kinds of combinations in the material selection metal, carbon fiber pipe or metal-based carbon fiber multiple tube of outer tube, carbon
Fiber lay down number of layers, laying direction and the thickness parameter of the carbon fiber portion of fibre pipe or metal-based carbon fiber multiple tube according to
The energy-absorbing demand of car crass is arranged.
4. more born of the same parents' metal-based carbon fiber composite thin wall endergonic structures according to claim 2, which is characterized in that said inner tube
It is arranged according to the energy-absorbing demand of car crass with the cross sectional shape of outer tube, geometric dimension, the cross sectional shape of said inner tube and outer tube
Including but not limited to circle, triangle, quadrangle, hexagon, octagon or decagon, and may be used homotype or abnormal shape
Combining form.
5. more born of the same parents' metal-based carbon fiber composite thin wall endergonic structures according to claim 2, which is characterized in that the energy-absorbing
Structure is more born of the same parents' types of attachment that an independent outer tube nesting wraps up that more inner tubes constitute enclosed cross, wherein said inner tube
Number N is selected according to energy absorption size, N >=3.
6. a kind of more born of the same parents' metal-based carbon fiber composite thin wall energy-absorbing knots as described in claim 1 to 5 any one claim
The preparation process of structure, it is characterised in that：The endergonic structure includes multiple born of the same parents with identical or different cross sectional shape, continuous
Body unit, multiple cell space units are corresponding in turn to arrangement and fixed bonding formation cross section is polygon at the bonding plane of coincidence
The cell structure of shape, wherein：The metal-based carbon fiber multiple tube is made of hot press method, using adhering with epoxy resin
Agent specifically includes following steps：
Step S1：Mold is preheated, releasing agent is coated, the carbon fiber prepreg for setting the number of plies, laying direction is laid or twined
It is wound on the heating mould outer wall of given cross-sectional shape, auxiliary material is then covered with according to technological requirement, completes the preparation before mold；
Step S2：It is nested in carbon fiber paving in carbon fiber prepreg external coating epoxy resin, then by the metal tube of pre-set dimension
On layer, wherein metal pipe outer wall contact surface needs to spray remover；
Step S3：Outer layer pressurize fixture is installed again to fix, technological parameter is set, and starts former and carries out heating and mould pressing；
Step S4：It is demoulded after cooling and metal-based carbon fiber composite pipe is made, mold is purged；
Step S5：Step S1-S4 is repeated, until preparing required amount of cell space unit；
Step S6：Metal-based carbon fiber cell space unit bonding plane obtained is polished, after being used in combination acetone to clean, is accordingly being pressed from both sides
It is bonded successively under tool and environment temperature, or Multi cell structure is interconnected to by the method that metallic support supports, and by viscous
The method connect is connected with outer tube wall；
Step S7：Shaping is processed to more born of the same parents' metal-based carbon fiber composite thin wall endergonic structures obtained, needed for final acquisition
Part product.
7. preparation process according to claim 6, it is characterised in that：The former technological parameter is：Preheating temperature
It it is 80 DEG C, the heat preservation solidification time is：20-40 minutes, then cure under pressure to 120-150 DEG C, divided by heat preservation solidification time 60-120
Clock, pressure intensity parameter 0.5-0.7MPa；It realizes that carbon fiber laying integrally cures with metal tube, after demoulding and then obtains Metal Substrate carbon
Fiber composite pipe unit.
8. preparation process according to claim 6, it is characterised in that：Carbon fiber prepreg uses thermoplastic shape fibre reinforced
Composite material.
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| CN111114480A (en) * | 2019-12-31 | 2020-05-08 | 广西民族大学 | Novel automobile energy absorption box and preparation method thereof |
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