CN107511957A - A kind of electronic racing car shell monomer Auto-body manufacturing method and its turn over former - Google Patents
A kind of electronic racing car shell monomer Auto-body manufacturing method and its turn over former Download PDFInfo
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- CN107511957A CN107511957A CN201710599238.4A CN201710599238A CN107511957A CN 107511957 A CN107511957 A CN 107511957A CN 201710599238 A CN201710599238 A CN 201710599238A CN 107511957 A CN107511957 A CN 107511957A
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- Prior art keywords
- layer
- former
- formpiston
- vacuum bag
- vacuum
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Classifications
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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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
- B29C33/3835—Designing moulds, e.g. using CAD-CAM
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
- B29C33/3842—Manufacturing moulds, e.g. shaping the mould surface by machining
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
- B29C33/40—Plastics, e.g. foam or rubber
-
- 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
-
- 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
Abstract
A kind of electronic racing car shell monomer Auto-body manufacturing method and its former is turned over, described method comprises the following steps：Designed using CAD software and ANSYS and optimize the profile and structure of shell monomer, smooth formpiston is produced by polishing, processing is carried out to formpiston and coats chemical releasing agent, coupling layer, laminated resin layer, and it is stripped to be made and turns over cavity block, releasing agent layer, first layer carbon fibre cloth layer, honeycomb aluminium lamination, second layer carbon fibre cloth layer, demoulding layer of cloth are coated on female mold surfaces are turned over and inhales rubber mat layer, the shaping of carbon fibre composite honeycomb is made；The product includes turning over former, vacuum bag, built-in fitting and vacuum valve, and the upper surface for turning over former is sequentially provided with releasing agent layer, first layer carbon fibre cloth layer, honeycomb aluminium lamination, second layer carbon fibre cloth layer, demoulding layer of cloth and inhales rubber mat layer from inside to outside.Present invention has the advantages that：So that carbon fibre composite racing body possesses preferable rigidity, intensity, safety coefficient and conformability, while reach light-weighted target.
Description
Technical field
The present invention relates to a kind of electronic racing car shell monomer Auto-body manufacturing method and its turn over former.
Background technology
Nowadays motor sport more and more turns into an important sports, and the weight of racing car becomes energy in motor sport
The no key factor to get good grades, wherein target of the loss of weight of racing body into numerous fleets.Racing car generally makes at present
With steel pipe truss formula vehicle frame and carbon fiber skin vehicle body, there is kerb weight it is excessive the defects of.
The content of the invention
The present invention for existing Non-carrying type racing body quality it is excessive the defects of provide it is a kind of compound using carbon fiber
Material honeycomb so that racing body light weight and a kind of electronic racing car shell monomer Auto-body manufacturing with preferable mechanical property
Method and its turn over former.
A kind of electronic racing car shell monomer Auto-body manufacturing method of the present invention, comprises the following steps：
1) formpiston is made
(1) using the profile and structure of CAD software design shell monomer, its structure space is made to meet the needs of later stage assembling,
And possesses good aerodynamic performance；
(2) CAE analysis torsion, bending, shear strength are carried out with ANSYS, realizes the optimization of structural thickness；
(3) CAD model is divided into two parts up and down by boundary of maximum vertical view face, extruded sheet material is milled out with machining center
Mould, and it is divided into formpiston and lower formpiston；
(4) one layer of epoxy resin is smeared after the good upper formpiston of milling, lower formpiston matched moulds, prevents atomized ash from corroding extruded sheet,
After resin solidification, one layer of relatively thin atomized ash sealing of hole is smeared, it is floating with scraper scraper plate；Wait atomized ash solidification (3-4 hours)
Polished afterwards with water-proof abrasive paper, mesh number is polished from low to high, obtains mould A；
(5) the mould A brush brushing first layer mould priming paint after polishing, mould B is obtained；
(6) after mould B solidifies (3-4 hours), polished using P80-P240 dry sand paper is from coarse to fine, obtain mould
C；
(7) have after mould C polishings and expose material part, repaired with a small amount of atomized ash, obtain mould D；
(8) mould D brushing bloom gel coats after atomized ash solidifies, mould E is obtained；
(9) mould E is polished again, first polished with P80-P500 dry sand paper is from coarse to fine, obtain mould F；
(10) water mill is carried out to mould F with water-proof abrasive paper, carries out water mill from P500-P1200, obtain the formpiston of light；
2) make and turn over former
1. die surface is handled：First have to be surface-treated formpiston before fiberglass former is made, use wipes of alcohol
Male mold surfaces are wiped, clean the spot of male mold surfaces, obtain formpiston A；
2. coat chemical releasing agent：Needed after cleaning between formpiston A surfaces coated with multiple layer chemistry releasing agent, each layer
Hardening time that will be at least 15 minutes；At least need to solidify a hour after last layer is painted with, obtain formpiston B；
3. the flange made is fixed on into formpiston B edges with PUR, and seal between formpiston B PP cored slabs
Gap, obtain formpiston C；
4. with the gap of filling wax sealing flange and formpiston C, formpiston D is obtained, pays attention to drafting angle；
5. in the uniform mould gel coat layer of formpiston D external coatings, formpiston E is obtained after solidifying at room temperature；
6. ensuring turning all on the docile and obedient mould of glass fibre in formpiston E external coating coupling layers, painting process, obtain
Formpiston F is obtained, wherein described coupling layer is glass fibre；
7. in the glass fibre of formpiston F external coating laminated resins, at least 4 layers of paving, one layer of resin is brushed then on formpiston F
Layer of glass is spread, one layer of resin corresponds to layer of glass, and the dosage of each layer of resin is to be coated with glass fibre thereon
4 times of quality, glass fibre is all coated with formpiston E；When solidification is started, color will be changed into dark brown from brown
Color, ensure resin curing time more than 24 hours；Wherein the part by weight of resin and glass fibre is 4:1, then solidify 24
Hour, obtain formpiston G；
8. being stripped, two pieces of formers are completed, respectively upper former and lower former；
3) carbon fibre composite honeycomb is molded：
A is sealed by above-mentioned upper former and lower former matched moulds, and in upper former and lower former seam crossing with sealant tape, then is used
The gap between wax filling mould is filled, is allowed to smoothly transit, former A is turned in acquisition；
B coats the chemical releasing agent of multi-layer thin in female mold surfaces, is at least spaced 15 minutes between every layer, last layer applies
Next layer can be just coated after at least being wanted after complete 1 hour, former B is turned in acquisition；
C adds the first carbon fibre initial rinse layer of cloth, is cut on former inner surface using the stickiness covering of prepreg cloth in itself
Multilayer carbon fibre initial rinse fabric, acquisition turn over former C；
D is coated with aluminium honeycomb turning over former C Surface, uses structure glue sticking between every piece of aluminium honeycomb, while pre- needing to install
The fixed built-in fitting in place of embedded part, built-in fitting structure glue is Nian Jie with carbon fiber layer and aluminium honeycomb, and former D is turned in acquisition；
E adds the second carbon fibre initial rinse layer of cloth, and the stickiness of prepreg cloth in itself is utilized on the aluminium honeycomb inner surface for turn over former D
The multilayer carbon fibre initial rinse fabric cut is covered, former E is turned in acquisition；
F is turning over former E surfaces addition release layer, ensures that release cloth can cover carbon fibre initial rinse fabric, former F is turned in acquisition；
G inhales rubber mat turning over the addition of former F surfaces, and resin unnecessary on prepreg cloth can be absorbed by inhaling rubber mat, and can be to prevent
Only the metal structure such as aluminium honeycomb and built-in fitting pierces through vacuum bag film, and former G is turned in acquisition；
H positioning vacuum valves, extract the air in sealed environment out, and keep vacuum, former H is turned in acquisition；
I adhesive seal adhesive tapes：Sealant tape is pasted onto the flange for turning over former H, cuts one piece bigger than former area at least
50% vacuum bag film, vacuum bag film is covered in and turns over former H outer surfaces, establish a sealed environment, while ensure vacuum bag
There are not some fold or folding line, vacuum bag film from front to back covers whole carbon fiber honeycomb, and the moon is turned in acquisition
Mould I；
G connection and sealing vacuum valves：Vacuum bag film heap to be folded, carbon fibre initial rinse fabric is sealed in vacuum bag film,
The breach of vacuum valve interface lane one in vacuum bag film, interface is stretched out vacuum bag film, and sealed breach with sealant tape, even
The interface of vavuum pump in vacuum valve interface and autoclave is connect, former J is turned in acquisition；
K opens vavuum pump, evacuates air, adjusts vacuum bag film, when air is taken away out of vacuum bag, surrounding is moved simultaneously
Fixed vacuum bag film, vacuum bag film make carbon fibre initial rinse fabric tightly be attached to all sites on aluminium honeycomb surface, it is ensured that aluminium honeycomb with
It is very close to each other between vacuum bag film；
L tests vacuum, opens the air in vavuum pump and suction ring border and examines the sealing of vacuum bag film, ensures
Vacuum bag film sealing；
After m finishes vacuum test, it is put into autoclave, technological parameter is set, starts autoclave and carry out hot pressing；
N is stripped：After the completion of hot pressing, former is taken out from autoclave, pulls out vacuum pump interface, by vacuum bag film from former
On tear, obtain honeycomb.
The demoulding of step 3) is carried out in accordance with the following steps：
(1) surrounding edge and the removal of vacuum bag film are cut；
(2) sealant tape at former edge is removed, maximally effective method is quickly to wrench；
(3) vacuum valve is removed, the sealant tape being bonded on vacuum valve is removed totally, vacuum valve is to may be reused
's；
(4) careful tear inhales rubber mat and release cloth, not damage carbon fiber layer；
(5) bolt and nut on former is turned on, upper former and lower former are separately removed；
(6) sealant tape remained on shell monomer finished product outer surface and filling wax are removed clean.
Step 2) 5. in：Be two layers layer by layer in formpiston D surfaces and mould gel coat, two layers of gross thickness control 0.8mm with
It is interior, first layer brush 0.3-0.4mm uniform thickness, after 20 DEG C of solidification 2-3 hours of room temperature, then brush second layer 0.3-0.4mm thickness, room
At least solidify under temperature 4 hours.
Sealant tape is pasted onto the flange for turning over former H, cuts one piece of vacuum bag film bigger by least 50% than former area,
Since in corner, the paper at peel seal adhesive tape back, vacuum bag film is pressed, is adhered on exposed sealant tape, on former side
Along moving, remove the paper at adhesive tape back and then cling vacuum bag film, glued in movement, will be as far as possible when film is adhered on adhesive tape
Carefully, vacuum bag not have some fold or folding line, firmly be pressed down with finger, while by while rub, make vacuum bag film and close
Sealed adhesive tape sticks together, and establishes a sealed environment.
Hot pressing in step m is：Temperature parameter is that 2 minutes constant-speed heatings are warming up to 15 DEG C, 30 minutes constant-speed heatings
85 DEG C are warming up to, is kept for 85 DEG C, constant temperature time is 60 minutes, and 13 minutes constant-speed heatings are warming up to 120 DEG C, is kept for 120 DEG C, constant temperature
Time is 120 minutes, at the uniform velocity cools to 60 DEG C within 12 minutes；Pressure parameter is that 0KPa is run 3 minutes, is at the uniform velocity pressurized within 2 minutes
200KPa, 200KPa is kept, constant voltage time is 230 minutes, is at the uniform velocity depressured to 0KPa within 2 minutes.
The outer surface processing comprises the following steps：
I. surface there may be the small defect of depression after the demoulding of shell monomer vehicle body, first with atomized ash filling-in；
Ii. polished with silicon carbide paper P80-P500 is from coarse to fine；
Iii. with filling out, eye is grey to mend dit；
Iv. with the P240-P1200 whole shell monomer bodywork surface of silicon carbide paper polishing；
V. painted application after the completion of polishing.
Former is turned over according to what a kind of electronic racing car shell monomer Auto-body manufacturing method of the present invention was built, its feature exists
In：Including turning over former body, vacuum bag, built-in fitting and vacuum valve, the upper surface for turning over former body is from inside to outside successively
Provided with releasing agent layer, first layer carbon fibre cloth layer, honeycomb aluminium lamination, second layer carbon fibre cloth layer, demoulding layer of cloth and rubber mat layer is inhaled,
The honeycomb aluminium lamination is mutually bonded by some honeycomb aluminums to be formed；The built-in fitting is bonded in the first carbon fibre initial rinse by structure glue
Between layer of cloth and honeycomb aluminium lamination；The relative both sides of the vacuum bag are respectively provided with a vacuum for being used to connect exocoel in vacuum bag
Valve, the vacuum bag is coated on the outer surface for turning over former, and the edge of the vacuum bag is sealed by sealant tape,
Whole vacuum bag corrugationless or folding line turn over whole former and are coated on interior formation sealed environment from front to back.
The aluminium of core material 5052 of the honeycomb aluminum, honeybee lattice length of side 4mm, thickness 0.05mm, height 25mm.
The beneficial effects of the invention are as follows：The manufacture method causes carbon fibre composite racing body to possess preferably just
Degree, intensity, safety coefficient and conformability, while reach light-weighted target.
Brief description of the drawings
Fig. 1 is shell monomer vehicle body moulding process schematic diagram.
Fig. 2 is honeycomb schematic diagram.
Embodiment
The present invention is further illustrated below in conjunction with the accompanying drawings
Referring to the drawings：
A kind of electronic racing car shell monomer Auto-body manufacturing method of the present invention of embodiment 1, comprises the following steps：
1) formpiston is made
(1) using the profile and structure of CAD software design shell monomer, its structure space is made to meet the needs of later stage assembling,
And possesses good aerodynamic performance；
(2) CAE analysis torsion, bending, shear strength are carried out with ANSYS, realizes the optimization of structural thickness；
(3) CAD model is divided into two parts up and down by boundary of maximum vertical view face, extruded sheet material is milled out with machining center
Mould, and it is divided into formpiston and lower formpiston；
(4) one layer of epoxy resin is smeared after the good upper formpiston of milling, lower formpiston matched moulds, prevents atomized ash from corroding extruded sheet,
After resin solidification, one layer of relatively thin atomized ash sealing of hole is smeared, it is floating with scraper scraper plate；Wait atomized ash solidification (3-4 hours)
Polished afterwards with water-proof abrasive paper, mesh number is polished from low to high, obtains mould A；
(5) the mould A brush brushing first layer mould priming paint after polishing, mould B is obtained；
(6) after mould B solidifies (3-4 hours), polished using P80-P240 dry sand paper is from coarse to fine, obtain mould
C；
(7) have after mould C polishings and expose material part, repaired with a small amount of atomized ash, obtain mould D；
(8) mould D brushing bloom gel coats after atomized ash solidifies, mould E is obtained；
(9) mould E is polished again, first polished with P80-P500 dry sand paper is from coarse to fine, obtain mould F；
(10) water mill is carried out to mould F with water-proof abrasive paper, carries out water mill from P500-P1200, obtain the formpiston of light；
2) make and turn over former
1. die surface is handled：First have to be surface-treated formpiston before fiberglass former is made, use wipes of alcohol
Male mold surfaces are wiped, clean the spot of male mold surfaces, obtain formpiston A；
2. coat chemical releasing agent：In formpiston A surfaces coated with multiple layer chemistry releasing agent after cleaning：It is lint-free with a fritter
Chemical releasing agent is coated thin layer by cloth in male mold surfaces.When releasing agent starts to volatilize (5-30 seconds), another piece of nothing is used
Flannelette lightly removes unnecessary part with the mode looped；6 layers of releasing agent need to be covered altogether on each formpiston, between each layer
Need the hardening time of at least 15 minutes；At least need to solidify a hour after last layer is painted with, obtain formpiston B；
3. the flange made is fixed on into formpiston B edges with PUR, and seal between formpiston B PP cored slabs
Gap, obtain formpiston C；
4. with the gap of filling wax sealing flange and formpiston C, formpiston D is obtained, pays attention to drafting angle；
5. in the uniform mould gel coat layer of formpiston D external coatings, formpiston E is obtained after solidifying at room temperature；
6. in formpiston E external coating coupling layers, coupling layer effect is to eliminate the impression as caused by mould reinforcer, passes through one
Layer resin and glass reduce alveolate risk below gel coating resin to strengthen gel coat to reach, and one is provided preferably for reinforcer
Basic unit；Turning all on the docile and obedient mould of glass fibre is ensured in painting process, formpiston F is obtained, wherein described coupling layer is
Glass fibre；
7. in formpiston F external coating laminated resins, 4 layers of glass fibre, 450g/m are at least spread2, one layer of tree is brushed on formpiston F
Fat then spreads layer of glass, and one layer of resin corresponds to layer of glass, and the dosage of each layer of resin is to be coated with glass thereon
4 times of glass fiber quality, glass fibre is all coated with formpiston E；When solidification is started, color will be changed into from brown
Dark-brown, ensure resin curing time more than 24 hours；Wherein the part by weight of resin and glass fibre is 4:1, Ran Hougu
Change 24 hours, obtain formpiston G；
8. being stripped, two pieces of formers are completed, respectively upper former and lower former；
3) carbon fibre composite honeycomb is molded：
A is by above-mentioned upper former and lower former matched moulds：By above-mentioned two pieces of former matched moulds, some a diameter of 7 are beaten on flange
The through hole of millimeter, is fixed with M6 screw bolt and nut, and is sealed in upper former and lower former seam crossing with sealant tape, then is used
The gap between wax filling mould is filled, is allowed to smoothly transit, former A is turned in acquisition；
B coats 6 layers thin of chemical releasing agent in female mold surfaces, is at least spaced 15 minutes between every layer, last layer applies
Next layer can be just coated after at least being wanted after complete 1 hour, former B is turned in acquisition；
C adds first layer carbon fibre initial rinse fabric, is cut on former inner surface using the stickiness covering of prepreg cloth in itself
Multilayer carbon fibre initial rinse fabric, it is preferred that covering 8 layers of carbon fibre initial rinse fabric, acquisition turn over former C；
D is coated with aluminium honeycomb turning over former C Surface, uses structure glue sticking between every piece of aluminium honeycomb, while pre- needing to install
The fixed built-in fitting in place of embedded part, built-in fitting structure glue is Nian Jie with carbon fiber layer and aluminium honeycomb, and former D is turned in acquisition；
E adds second layer carbon fibre initial rinse fabric, and the stickiness of prepreg cloth in itself is utilized on the aluminium honeycomb inner surface for turn over former D
Cover the multilayer carbon fibre initial rinse fabric cut, it is preferred that former E is turned in 7 layers of carbon fibre initial rinse fabric of covering, acquisition；
F is turning over former E surfaces addition release layer, ensures that release cloth can cover two layers of carbon fibre initial rinse fabric, the moon is turned in acquisition
Mould F, generally it is cut into more bigger than the area of carbon fibre initial rinse fabric；
G inhales rubber mat turning over the addition of former F surfaces, and resin unnecessary on prepreg cloth can be absorbed by inhaling rubber mat, and can be to prevent
Only the metal structure such as aluminium honeycomb and built-in fitting pierces through vacuum bag film, and former G is turned in acquisition；Since in corner, peel seal adhesive tape
The paper at back, presses vacuum bag film, adheres on exposed sealant tape.Moved at former edge, the paper for removing adhesive tape back is right
After cling vacuum bag film, while movement while glue.As careful as possible when film is adhered on adhesive tape, vacuum bag not have some folds
Or folding line.Firmly pressed down with finger, while by while rub, vacuum bag film and sealant tape is sticked together, establish one it is close
Seal ring border.Vacuum bag film from front to back covers whole carbon fiber honeycomb；
H positioning vacuum valves, extract the air in sealed environment out, and keep vacuum, former H is turned in acquisition；When air by from
When being taken away in vacuum bag, surrounding is moved and fixes vacuum bag film, it can be seen that vacuum bag film makes carbon fibre initial rinse fabric tightly be attached to
The all sites on aluminium honeycomb surface.Because vacuum bag film can progressively become tight after vavuum pump unlatching, vavuum pump is temporarily turned off, at this moment
Can move need the vacuum bag film repositioned, it is necessary to place do a little folds, it is ensured that do not have between aluminium honeycomb and vacuum bag film
There is gap.If vacuum bag film area is not big enough, there is gap in it between aluminium honeycomb, just without the vacuum that can be retightened
Bag film is repaired and have adjusted.In the event of this situation, it should stop, removing vacuum bag film and sealant tape, do again again
Once；
I adhesive seal adhesive tapes：Sealant tape is pasted onto the flange for turning over former H, cuts one piece bigger than former area at least
50% vacuum bag film, vacuum bag film is covered in and turns over former H outer surfaces, establish a sealed environment, while ensure vacuum bag
There are not some fold or folding line, vacuum bag film from front to back covers whole carbon fiber honeycomb, and the moon is turned in acquisition
Mould I；
G connection and sealing vacuum valves：Vacuum bag film heap to be folded, carbon fibre initial rinse fabric is sealed in vacuum bag film,
The breach of vacuum valve interface lane one in vacuum bag film, interface is stretched out vacuum bag film, and sealed breach with sealant tape, even
The interface of vavuum pump in vacuum valve interface and autoclave is connect, former J is turned in acquisition；
K opens vavuum pump, evacuates air, adjusts vacuum bag film, when air is taken away out of vacuum bag, surrounding is moved simultaneously
Fixed vacuum bag film, vacuum bag film make carbon fibre initial rinse fabric tightly be attached to all sites on aluminium honeycomb surface, it is ensured that aluminium honeycomb with
It is very close to each other between vacuum bag film；
L tests vacuum, opens the air in vavuum pump and suction ring border and examines the sealing of vacuum bag film, ensures
Vacuum bag film sealing；The air in vavuum pump and suction ring border is opened, just can be appreciated that the vacuum display instrument of vavuum pump
Vacuum values on table are begun to ramp up.Without turning off vavuum pump, do not rising when close to perfect vacuum, vacuum values.
At this moment, it should carry out turning off vavuum pump, continue at least 20 minutes, then meticulous inspection vacuum values；If index decreased, then
It can determine that vacuum bag film has leakage, it is necessary to be adjusted., can firmly pressing vacuum bag film and close if endless hermetically sealed
Sealed adhesive tape, then vacuum test is carried out, until being fully sealed；
After m finishes vacuum test, it is put into autoclave, technological parameter is set, starts autoclave and carry out hot pressing；
N is stripped：After the completion of hot pressing, former is taken out from autoclave, pulls out vacuum pump interface, by vacuum bag film from former
On tear, obtain honeycomb.
The demoulding of step 3) is carried out in accordance with the following steps：
(1) surrounding edge and the removal of vacuum bag film are cut；
(2) sealant tape at former edge is removed, maximally effective method is quickly to wrench；
(3) vacuum valve is removed, the sealant tape being bonded on vacuum valve is removed totally, vacuum valve is to may be reused
's；
(4) careful tear inhales rubber mat and release cloth, not damage carbon fiber layer；
(5) bolt and nut on former is turned on, upper former and lower former are separately removed；
(6) sealant tape remained on shell monomer finished product outer surface and filling wax are removed clean.
Step 2) 5. in：Be two layers layer by layer in formpiston D surfaces and mould gel coat, two layers of gross thickness control 0.8mm with
It is interior, first layer brush 0.3-0.4mm uniform thickness, after 20 DEG C of solidification 2-3 hours of room temperature, then brush second layer 0.3-0.4mm thickness, room
At least solidify under temperature 4 hours.
Sealant tape is pasted onto the flange for turning over former H, cuts one piece of vacuum bag film bigger by least 50% than former area,
Since in corner, the paper at peel seal adhesive tape back, vacuum bag film is pressed, is adhered on exposed sealant tape, on former side
Along moving, remove the paper at adhesive tape back and then cling vacuum bag film, glued in movement, will be as far as possible when film is adhered on adhesive tape
Carefully, vacuum bag not have some fold or folding line, firmly be pressed down with finger, while by while rub, make vacuum bag film and close
Sealed adhesive tape sticks together, and establishes a sealed environment.
Hot pressing in step m is：Temperature parameter is that 2 minutes constant-speed heatings are warming up to 15 DEG C, 30 minutes constant-speed heatings
85 DEG C are warming up to, is kept for 85 DEG C, constant temperature time is 60 minutes, and 13 minutes constant-speed heatings are warming up to 120 DEG C, is kept for 120 DEG C, constant temperature
Time is 120 minutes, at the uniform velocity cools to 60 DEG C within 12 minutes；Pressure parameter is that 0KPa is run 3 minutes, is at the uniform velocity pressurized within 2 minutes
200KPa, 200KPa is kept, constant voltage time is 230 minutes, is at the uniform velocity depressured to 0KPa within 2 minutes.
The outer surface processing comprises the following steps：
I. surface there may be the small defect of depression after the demoulding of shell monomer vehicle body, first with atomized ash filling-in；
Ii. polished with silicon carbide paper P80-P500 is from coarse to fine；
Iii. with filling out, eye is grey to mend dit；
Iv. with the P240-P1200 whole shell monomer bodywork surface of silicon carbide paper polishing；
V. painted application after the completion of polishing.
Former is turned over according to what a kind of electronic racing car shell monomer Auto-body manufacturing method of the present invention was built, including turns over former
Body 1, vacuum bag 2, built-in fitting 3 and vacuum valve 4, the upper surface for turning over former body 1 are sequentially provided with the demoulding from inside to outside
Oxidant layer 11, first layer carbon fibre cloth layer 12, honeycomb aluminium lamination 13, second layer carbon fibre cloth layer 14, demoulding layer of cloth 15 and suction rubber mat
Layer 16, the honeycomb aluminium lamination 13 is mutually bonded by some honeycomb aluminums to be formed；The built-in fitting 3 is bonded in the first carbon by structure glue
Between fiber prepreg layer of cloth 12 and honeycomb aluminium lamination 13；The relative both sides of the vacuum bag 2 are respectively provided with one and are used to connect vacuum bag
The vacuum valve 4 of interior exocoel, the vacuum bag 2 is coated on the outer surface for turning over former body 1, and the edge of the vacuum bag 2 leads to
Cross sealant tape 21 to be sealed, the whole corrugationless of vacuum bag 2 or folding line whole will turn over former 1 from front to back and be coated on
Interior formation sealed environment.
The aluminium of core material 5052 of the honeycomb aluminium lamination 13, honeybee lattice length of side 4mm, thickness 0.05mm, height 25mm.
Content described in this specification embodiment is only enumerating to the way of realization of inventive concept, protection of the invention
Scope is not construed as being only limitted to the concrete form that embodiment is stated, protection scope of the present invention also includes art technology
Personnel according to present inventive concept it is conceivable that equivalent technologies mean.
Claims (8)
1. a kind of electronic racing car shell monomer Auto-body manufacturing method, comprises the following steps：
1) formpiston is made
(1) using the profile and structure of CAD software design shell monomer, its structure space is made to meet the needs of later stage assembling, and have
Standby good aerodynamic performance；
(2) CAE analysis torsion, bending, shear strength are carried out with ANSYS, realizes the optimization of structural thickness；
(3) CAD model is divided into two parts up and down by boundary of maximum vertical view face, the mould of extruded sheet material is milled out with machining center
Tool, and it is divided into formpiston and lower formpiston；
(4) one layer of epoxy resin is smeared after the good upper formpiston of milling, lower formpiston matched moulds, prevents atomized ash from corroding extruded sheet, waits to set
After fat solidification, one layer of relatively thin atomized ash sealing of hole is smeared, it is floating with scraper scraper plate；Entered after waiting atomized ash solidification with water-proof abrasive paper
Row polishing, mesh number are polished from low to high, obtain mould A；
(5) the mould A brush brushing first layer mould priming paint after polishing, mould B is obtained；
(6) after mould B solidifications, polished using P80-P240 dry sand paper is from coarse to fine, obtain mould C；
(7) have after mould C polishings and expose material part, repaired with a small amount of atomized ash, obtain mould D；
(8) mould D brushing bloom gel coats after atomized ash solidifies, mould E is obtained；
(9) mould E is polished again, first polished with P80-P500 dry sand paper is from coarse to fine, obtain mould F；
(10) water mill is carried out to mould F with water-proof abrasive paper, carries out water mill from P500-P1200, obtain the formpiston of light；
2) make and turn over former
1. die surface is handled：First have to be surface-treated formpiston before fiberglass former is made, with alcohol wipe sun
Mould surface, the spot of male mold surfaces is cleaned, obtain formpiston A；
2. coat chemical releasing agent：Needed after cleaning between formpiston A surfaces coated with multiple layer chemistry releasing agent, each layer to
Few 15 minutes hardening time；At least need to solidify a hour after last layer is painted with, obtain formpiston B；
3. the flange made is fixed on into formpiston B edges with PUR, and seal the seam between formpiston B PP cored slabs
Gap, obtain formpiston C；
4. with the gap of filling wax sealing flange and formpiston C, formpiston D is obtained, pays attention to drafting angle；
5. in the uniform mould gel coat layer of formpiston D external coatings, formpiston E is obtained after solidifying at room temperature；
6. ensuring turning all on the docile and obedient mould of glass fibre in formpiston E external coating coupling layers, painting process, sun is obtained
Mould F, wherein described coupling layer is glass fibre；
7. in the glass fibre of formpiston F external coating laminated resins, at least 4 layers of paving, one layer of resin of brush then spreads one on formpiston F
Layer glass fibre, one layer of resin correspond to layer of glass, and the dosage of each layer of resin is to be coated with glass fiber quality thereon
4 times, glass fibre is all coated with formpiston E；When solidification is started, color will be changed into dark-brown from brown, protect
Resin curing time is demonstrate,proved more than 24 hours；Wherein the part by weight of resin and glass fibre is 4:1, then solidify 24 hours,
Obtain formpiston G；
8. being stripped, two pieces of formers are completed, respectively upper former and lower former；
3) carbon fibre composite honeycomb is molded：
A is sealed by above-mentioned upper former and lower former matched moulds, and in upper former and lower former seam crossing with sealant tape, then with filling
Gap between wax filling mould, is allowed to smoothly transit, former A is turned in acquisition；
B coats the chemical releasing agent of multi-layer thin in female mold surfaces, is at least spaced 15 minutes between every layer, last layer is painted with it
Next layer can be just coated after at least wanting afterwards 1 hour, former B is turned in acquisition；
C add the first carbon fibre initial rinse layer of cloth, on former inner surface using prepreg cloth in itself stickiness covering cut it is more
Former C is turned in layer carbon fibre initial rinse fabric, acquisition；
D is coated with aluminium honeycomb turning over former C Surface, structure glue sticking is used between every piece of aluminium honeycomb, while needing to install built-in fitting
The fixed built-in fitting in place, built-in fitting structure glue is Nian Jie with carbon fiber layer and aluminium honeycomb, obtain and turn over former D；
E adds the second carbon fibre initial rinse layer of cloth, the stickiness covering on the aluminium honeycomb inner surface for turn over former D using prepreg cloth in itself
Former E is turned in the multilayer carbon fibre initial rinse fabric cut, acquisition；
F is turning over former E surfaces addition release layer, ensures that release cloth can cover carbon fibre initial rinse fabric, former F is turned in acquisition；
G is turning over former F surfaces addition suction rubber mat, and resin unnecessary on prepreg cloth can be absorbed by inhaling rubber mat, and can prevent aluminium
The metal structure such as honeycomb and built-in fitting pierces through vacuum bag film, and former G is turned in acquisition；
H positioning vacuum valves, extract the air in sealed environment out, and keep vacuum, former H is turned in acquisition；
I adhesive seal adhesive tapes：Sealant tape is pasted onto the flange for turning over former H, cuts one piece bigger by least 50% than former area
Vacuum bag film, vacuum bag film is covered in and turns over former H outer surfaces, establishes a sealed environment, while ensure that vacuum bag should not
There are some fold or folding line, vacuum bag film from front to back covers whole carbon fiber honeycomb, and former I is turned in acquisition；
G connection and sealing vacuum valves：Vacuum bag film heap is folded, carbon fibre initial rinse fabric is sealed in vacuum bag film, in vacuum
The breach of vacuum valve interface lane one on bag film, makes interface stretch out vacuum bag film, and is sealed breach with sealant tape, and connection is true
Former J is turned in the interface of vavuum pump in empty valve interface and autoclave, acquisition；
K opens vavuum pump, evacuates air, adjusts vacuum bag film, when air is taken away out of vacuum bag, surrounding is moved and fixed
Vacuum bag film, vacuum bag film make carbon fibre initial rinse fabric tightly be attached to all sites on aluminium honeycomb surface, it is ensured that aluminium honeycomb and vacuum
It is very close to each other between bag film；
L tests vacuum, opens the air in vavuum pump and suction ring border and examines the sealing of vacuum bag film, ensures vacuum
Bag film sealing；
After m finishes vacuum test, it is put into autoclave, technological parameter is set, starts autoclave and carry out hot pressing；
N is stripped：After the completion of hot pressing, former is taken out from autoclave, pulls out vacuum pump interface, vacuum bag film is torn from former
Fall, obtain honeycomb.
A kind of 2. electronic racing car shell monomer Auto-body manufacturing method as claimed in claim 1, it is characterised in that：The demoulding of step 3)
Carry out in accordance with the following steps：
(1) surrounding edge and the removal of vacuum bag film are cut；
(2) sealant tape at former edge is removed, maximally effective method is quickly to wrench；
(3) vacuum valve is removed, the sealant tape being bonded on vacuum valve is removed totally, vacuum valve may be reused；
(4) careful tear inhales rubber mat and release cloth, not damage carbon fiber layer；
(5) bolt and nut on former is turned on, upper former and lower former are separately removed；
(6) sealant tape remained on shell monomer finished product outer surface and filling wax are removed clean.
A kind of 3. electronic racing car shell monomer Auto-body manufacturing method as claimed in claim 1, it is characterised in that：Step 2) is 5.
In：It is two layers layer by layer on formpiston D surfaces and mould gel coat, two layers of gross thickness control is within 0.8mm, first layer brush 0.3-
0.4mm uniform thickness, after 20 DEG C of solidification 2-3 hours of room temperature, then brush second layer 0.3-0.4mm thickness, at least solidification 4 is small at room temperature
When.
A kind of 4. electronic racing car shell monomer Auto-body manufacturing method as claimed in claim 1, it is characterised in that：Sealant tape is pasted
Former H flange is being turned over, is cutting one piece of vacuum bag film bigger by least 50% than former area, since in corner, is being peeled off close
The paper at sealed adhesive tape back, presses vacuum bag film, adheres on exposed sealant tape, is moved at former edge, removes adhesive tape back
Paper then cling vacuum bag film, glued in movement, as careful as possible when film is adhered on adhesive tape, vacuum bag not have one
Point fold or folding line, is firmly pressed down with finger, while by while rub, vacuum bag film and sealant tape is sticked together, establish
One sealed environment.
A kind of 5. electronic racing car shell monomer Auto-body manufacturing method as claimed in claim 1, it is characterised in that：Heat in step m
Pressing through journey is：Temperature parameter is that 2 minutes constant-speed heatings are warming up to 15 DEG C, and 30 minutes constant-speed heatings are warming up to 85 DEG C, are kept for 85 DEG C,
Constant temperature time is 60 minutes, and 13 minutes constant-speed heatings are warming up to 120 DEG C, is kept for 120 DEG C, constant temperature time is 120 minutes, 12 minutes
At the uniform velocity cool to 60 DEG C；Pressure parameter is that 0KPa is run 3 minutes, is at the uniform velocity pressurized within 2 minutes 200KPa, keeps 200KPa, constant pressure
Time is 230 minutes, is at the uniform velocity depressured to 0KPa within 2 minutes.
A kind of 6. electronic racing car shell monomer Auto-body manufacturing method as claimed in claim 1, it is characterised in that：The outer surface
Reason comprises the following steps：
I. surface there may be the small defect of depression after the demoulding of shell monomer vehicle body, first with atomized ash filling-in；
Ii. polished with silicon carbide paper P80-P500 is from coarse to fine；
Iii. with filling out, eye is grey to mend dit；
Iv. with the P240-P1200 whole shell monomer bodywork surface of silicon carbide paper polishing；
V. painted application after the completion of polishing.
7. a kind of electronic racing car shell monomer Auto-body manufacturing method structure according to claim 1 turns over former, its feature exists
In：Including turning over former body, vacuum bag, built-in fitting and vacuum valve, the upper surface for turning over former body is from inside to outside successively
Provided with releasing agent layer, first layer carbon fibre cloth layer, honeycomb aluminium lamination, second layer carbon fibre cloth layer, demoulding layer of cloth and rubber mat layer is inhaled,
The honeycomb aluminium lamination is mutually bonded by some honeycomb aluminums to be formed；The built-in fitting is bonded in the first carbon fibre initial rinse by structure glue
Between layer of cloth and honeycomb aluminium lamination；The relative both sides of the vacuum bag are respectively provided with a vacuum for being used to connect exocoel in vacuum bag
Valve, the vacuum bag is coated on the outer surface for turning over former body, and the edge of the vacuum bag is sealed in by sealant tape
Together, whole vacuum bag corrugationless or folding line from front to back turn over whole former and are coated on interior formation sealed environment.
8. a kind of electronic racing car shell monomer Auto-body manufacturing method structure according to claim 7 turns over former, its feature exists
In：The aluminium of core material 5052 of the honeycomb aluminum, honeybee lattice length of side 4mm, thickness 0.05mm, height 25mm.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0586000A1 (en) * | 1992-08-10 | 1994-03-09 | The Boeing Company | Non-metallic thermally conductive honeycomb thrust reverser inner wall |
| CN103042697A (en) * | 2012-12-31 | 2013-04-17 | 北京玻钢院复合材料有限公司 | Integral forming process of carbon fiber antenna reflecting surface |
| US20130284003A1 (en) * | 2012-04-30 | 2013-10-31 | Future Force Innovation, Inc. | Material for providing blast and projectile impact protection |
| CN105015047A (en) * | 2014-04-24 | 2015-11-04 | 沈阳航空航天大学 | Preparation method for resin honeycomb sandwich structure and composite material structure thereof |
| CN204894563U (en) * | 2015-08-06 | 2015-12-23 | 浙江工业大学 | Special manufacture equipment of FSAE cycle racing carbon -fibre composite automobile body covering |
-
2017
- 2017-07-21 CN CN201710599238.4A patent/CN107511957B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0586000A1 (en) * | 1992-08-10 | 1994-03-09 | The Boeing Company | Non-metallic thermally conductive honeycomb thrust reverser inner wall |
| US20130284003A1 (en) * | 2012-04-30 | 2013-10-31 | Future Force Innovation, Inc. | Material for providing blast and projectile impact protection |
| CN103042697A (en) * | 2012-12-31 | 2013-04-17 | 北京玻钢院复合材料有限公司 | Integral forming process of carbon fiber antenna reflecting surface |
| CN105015047A (en) * | 2014-04-24 | 2015-11-04 | 沈阳航空航天大学 | Preparation method for resin honeycomb sandwich structure and composite material structure thereof |
| CN204894563U (en) * | 2015-08-06 | 2015-12-23 | 浙江工业大学 | Special manufacture equipment of FSAE cycle racing carbon -fibre composite automobile body covering |
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| CN108527732A (en) * | 2018-03-14 | 2018-09-14 | 天津爱思达航天科技有限公司 | A kind of composite material mould and its manufacturing method |
| CN108527732B (en) * | 2018-03-14 | 2019-10-11 | 天津爱思达航天科技有限公司 | A kind of composite material mould and its manufacturing method |
| CN108407333B (en) * | 2018-03-14 | 2020-05-01 | 天津爱思达航天科技有限公司 | Composite material mold female die and manufacturing method and application thereof |
| CN109115073A (en) * | 2018-08-08 | 2019-01-01 | 江苏瀚皋机械有限公司 | The manufacture craft of simple inpecting tool |
| CN110525011A (en) * | 2019-09-10 | 2019-12-03 | 上海华迎汽车零部件有限公司 | A kind of processing technology of luggage case spare tire cover plate |
| CN110525011B (en) * | 2019-09-10 | 2021-08-03 | 上海华迎汽车零部件有限公司 | Processing technology of trunk spare tire cover plate |
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| CN111890601A (en) * | 2020-07-07 | 2020-11-06 | 东南大学 | Fsae racing car-based steel monomer shell die forming process and forming die |
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