CN106313586A - Molding tool for composite of closed angle structure - Google Patents
Molding tool for composite of closed angle structure Download PDFInfo
- Publication number
- CN106313586A CN106313586A CN201610887324.0A CN201610887324A CN106313586A CN 106313586 A CN106313586 A CN 106313586A CN 201610887324 A CN201610887324 A CN 201610887324A CN 106313586 A CN106313586 A CN 106313586A
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- China
- Prior art keywords
- edge strip
- semi
- laying
- material parts
- composite material
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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
- 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
- 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
- B29C70/345—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 matched moulds
Abstract
The invention belongs to the technical field of composite manufacturing, and relates to a molding tool for a composite of a closed angle structure. By means of locating combination of a lower hard mold, a left edge strip profile cover plate, a right edge strip profile cover plate and a semi-rigid pressurization pad, the relative position and profile precision of a mold can be guaranteed, and therefore the boundary dimensional precision of a part is guaranteed; and meanwhile, in the demolding process after the part is molded, the semi-rigid pressurization pad can be firstly demounted from a closed angle web area, then the left edge strip profile cover plate and the right edge strip profile cover plate are demounted, the part is finally taken down from the lower hard mold, and part demolding is completed. Compared with a traditional rigid split mold of a closed angle structure, according to the molding tool for the composite, the parting surface jump of the split mold and part deviation caused by mold deformation after long-time use are eliminated, traces, caused by mold jointing, on the surface of the part are eliminated, and the surface quality of the part is improved; and meanwhile, the mold manufacturing difficulty is greatly reduced, the cost is greatly reduced, and the problem of complex demolding generated after the part is molded is solved.
Description
Technical field
The invention belongs to manufacture technology of composite material field, relate to a kind of for closing corner structure composite forming frock.
Background technology
Composite is due to its high specific strength, and high specific stiffness, designability are strong, fatigue crack-resistant performance is good, corrosion-resistant, chi
Very little good stability and be easy to the advantages such as large area monolithic molding, it has also become one of contemporary topmost Aircraft Structure Materials.Its
In " work " type, " J " type composite girder construction as a kind of common structure part, by extensively in the parts such as aircraft wing, vertical fin
Use.Due to the complex appearance of aircraft, in the design process of the parts such as wing, vertical fin, " work " type, " J " type composite material beam
Structure closes angle often with certain.How to ensure closing angular zone dimensional accuracy and Forming Quality is composite material beam shaping structures
Major issue in technique.Traditional " work " type, " J " type close corner structure composite girder construction when manufacturing, and are generally closing corner
Point using metal Split mold, first will close angle mold and assemble on the support structure, laying closes angle part, then with angle of release part group
Close, assembling is carried out hot-forming after edge strip district laying.Assembling die is used owing to closing angle part, in mould preparation, if
Meter combination, positioning more complicated, and metal die is heavier, and with angle of release part integrated positioning after laying, upset difficulty, part becomes
The difficult demoulding after type, needs accurate detailed design and manufacture, the part of final molding is likely to because Split mold fit clearance,
There is defect in the problems such as die deformation.
Summary of the invention
It is an object of the invention to provide a kind of reasonable in design, be simple to manufacture for closing corner structure composite molding work
Dress.
The technical scheme is that, composite forming frock includes lower die, upper die, composite forming frock
Also include left and right edge strip profile cover plate, semi-rigid pressure pad；The outer mold surface of lower die and the abdomen of composite material parts angle of release part
Template face is consistent, and lower die uses glass as the laying mould in composite material parts angle of release part web district, semi-rigid pressure pad
Cloth prepreg laying curing molding, the outer mold surface of semi-rigid pressure pad and composite material parts close the web profile one of angle part
Causing, semi-rigid pressure pad is placed on upper die, and semi-rigid pressure pad closes angle as composite material parts after being combined with upper die
The laying mould in part web district, respectively laying composite material parts angle of release part web district on lower die and semi-rigid pressure pad
After closing the laying group in web district, angle part, upper and lower die carries out matched moulds, then the composite material parts completed by laying is left,
Right border bar district laying group and trigonum filler are respectively placed in the arranged on left and right sides of upper and lower die, remove upper die, the most again by a left side,
Right border stripe shape surface cover be individually positioned in outside composite material parts edge strip district laying group and position with lower die after as part
Edge strip district pressure transmission medium and profile control device；After composite forming frock has encapsulated, enter autoclave and carry out solid
Chemical conversion type, then goes out the tank demoulding, in knockout course, first carries out the dismounting of semi-rigid pressure pad, then carries out left and right edge strip profile
The dismounting of cover plate, finally takes off part on lower die.
The integrated tooling that described lower die, left and right edge strip profile cover plate, semi-rigid pressure pad are combined into is applicable to web
There is " work " type or " J " type cross section composite material parts closing angle in face and edge strip face, and web surface and 20 ° of ＜ α ＜ of edge strip face angle
90°。
Described lower hard mould material uses Q235A.
Described upper die material uses wood materials, plastics or aluminum.
Described left and right edge strip profile cover plate uses or the material of thermal coefficient of expansion same levels consistent with composite material parts
Material manufactures.
The present invention has the advantage that and beneficial effect:
In the present invention closing corner structure composite forming frock use assembling die and location control technology, by lower firmly
Mould, left and right edge strip profile cover plate, semi-rigid pressure pad bit combination can ensure that mould, relative to position and profile precision, thus is protected
The overall dimensions precision of card part；Simultaneously the knockout course after forming parts can first by semi-rigid pressure pad from Bi Jiao web district
Remove, then carry out the dismounting of left and right edge strip profile cover plate, finally part is taken off on lower die, complete part removal.Half just
Property pressure pad use there is the material manufacture of certain rigidity, its median ventral plate district has certain flexibility, deformable in demolishing process,
Own profile can be maintained after dismounting.Composite forming frock in the present invention and tradition close corner structure rigidity Split mold phase
Ratio, the part deviation that the deformation of the parting surface jump and life-time service rear mold that solve Split mold causes, eliminate zero
The vestige that part surface is caused due to mould piece, improves the surface quality of part, has been greatly reduced Making mold difficult simultaneously
Degree, significantly reduces cost, and release problems complicated after solving forming parts.
Accompanying drawing explanation
Fig. 1 is that the present invention closes corner structure composite forming frock schematic diagram for hot-pressing technique molding, and wherein, 1 is
Composite material parts, 2 is semi-rigid pressure pad, and 3 is left border stripe shape surface cover, and 4 is right border stripe shape surface cover, and 5 is lower die, α
For web surface and edge strip face angle.
Fig. 2 be the present invention close corner structure composite material parts structural representation, 1 is composite material parts, 8 composites
Part closes the web profile of angle part, and 9 is the web profile of composite material parts angle of release part.
Fig. 3 be the present invention close corner structure composite material parts STRUCTURE DECOMPOSITION schematic diagram, 1-1 is on the left of composite material parts
Edge strip district laying group, 1-2 is edge strip district laying group on the right side of composite material parts, and 1-3 is composite material parts angle of release web district paving
Layer group, 1-4 is composite material parts Bi Jiao web district laying group, and 1-5 is trigonum filler on the left of composite material parts, and 1-6 is
Trigonum filler on the right side of composite material parts.
Fig. 4 is left and right edge strip district laying group laying schematic diagram, and 1-1 is edge strip district laying group, 1-on the left of composite material parts
2 is edge strip district laying group on the right side of composite material parts, and 6 is edge strip profile cover plate lay-up molding mould, for left and right edge strip district laying
The laying of group and left and right edge strip profile cover plate molding.
Fig. 5 is part angle of release web district laying group laying schematic diagram, and 1-3 is composite material parts angle of release web district laying
Group, 5 is lower die.
Fig. 6 is part Bi Jiao web district laying laying schematic diagram, and 1-4 is composite material parts Bi Jiao web district laying group, 2
Being semi-rigid pressure pad, 7 is upper die.
Detailed description of the invention
Below in conjunction with the accompanying drawings the present invention is elaborated.Composite forming frock includes lower die 5, upper die 7, multiple
Condensation material forming frock also includes left and right edge strip profile cover plate 3 and 4, semi-rigid pressure pad 2；The outer mold surface of lower die 5 is with compound
The web profile 9 of material parts angle of release part is consistent, and lower die 5 is as composite material parts angle of release part web district laying group 1-
The laying mould of 3, semi-rigid pressure pad 2 uses glass cloth prepreg laying curing molding, and the outer mold surface of semi-rigid pressure pad 2 is with multiple
The web profile 8 that condensation material part closes angle part is consistent, and semi-rigid pressure pad 2 is placed on upper die 7, semi-rigid pressure pad 2
The laying mould of web district, angle part laying group 1-4 is closed with upper die 7 as composite material parts, respectively at lower die 5 after being combined
With laying composite material parts angle of release part web district laying group 1-3 in semi-rigid pressure pad 2 and close web district, angle part laying
After 1-4 group, upper die 7, lower die 5 carry out matched moulds, then the composite material parts left and right edge strip district laying group completed by laying
1-1,1-2 and trigonum filler 1-5,1-6 are respectively placed in the arranged on left and right sides of upper and lower die, remove upper die 7, will the most again
Left and right edge strip profile cover plate 3 and 4 be individually positioned in outside composite material parts edge strip district laying group 1-1 and 1-2 and with lower die
Device is controlled as part edge strip district's pressure transmission medium and profile behind 5 location；After composite forming frock has encapsulated, enter
Enter autoclave and carry out curing molding, then go out the tank demoulding, in knockout course, first carry out the dismounting of semi-rigid pressure pad 2, then enter
The dismounting of the left and right edge strip profile cover plate 3 and 4 of row, finally takes off part 1 on lower die 5.
This assembled tool includes semi-rigid pressure pad 2, left border stripe shape surface cover 3, right border stripe shape surface cover 4, lower die 5.
Semi-rigid pressure pad 2, left border stripe shape surface cover 3, right border stripe shape surface cover 4, lower die 5 bit combination are used for forming composite
Part 1.Composite material parts 1 is made up of 4 laying groups and two subtriangular fillers, and respectively composite material parts is left
Edge strip district laying group 1-1, composite material parts right border bar district laying group 1-2, composite material parts angle of release web district laying group 1-
3, composite material parts Bi Jiao web district laying group 1-4, trigonum filler 1-5, composite material parts on the left of composite material parts
Right side trigonum filler 1-6.
Composite material parts left border bar district's laying group 1-1 and composite material parts right border bar district laying group 1-2 are in edge strip type
Laying is carried out on surface cover lay-up molding mould 6.Composite material parts angle of release web district laying group 1-3 spreads on lower die 5
Folded.Composite material parts Bi Jiao web district laying group 1-4 carries out laying on the upper die 7 with semi-rigid pressure pad 2.Compound
Before material parts Bi Jiao web district laying group 1-4 laying, need on upper die 7 the semi-rigid pressure pad of lay-up molding 2, semi-rigid
Pressure pad 2 uses glass cloth prepreg lay-up molding to solidify, and it closes angle outer mold surface, and close web zone type face, angle with part consistent.
After laying completes, by belt composite part Bi Jiao web district laying group 1-4, upper with semi-rigid pressure pad 2
Die 7 assembles with lower die 5, by composite material parts left border bar district laying group 1-1, composite material parts right border bar district paving
Floor group 1-2, composite material parts angle of release web district laying group 1-3, composite material parts Bi Jiao web district laying group 1-4, compound
On the left of material parts, on the right side of trigonum filler 1-5, composite material parts, trigonum filler 1-6 is assembled into " work " type composite zero
Part 1, then removes upper die 7, then left border stripe shape surface cover 3, right border stripe shape surface cover 4 is assembled on lower die 5, the most laggard
Row encapsulation, enters autoclave and carries out curing molding.In the curing process, semi-rigid pressure pad 2 and left border stripe shape surface cover 3, the right side
Edge strip profile cover plate 4 can play good pressure transmission effect, it is ensured that part quality.
In knockout course, first carry out the dismounting 2 of semi-rigid pressure pad, owing to semi-rigid pressure pad 2 has deformability,
Easily semi-rigid pressure pad 2 directly can be taken off from closing side, angle.Carry out left border stripe shape surface cover 3, right border stripe shape surface cover again
Dismounting 4, finally part is taken off on lower die 5.
In technique scheme, described lower die 5 uses metal material Q235A steel digital control processing to manufacture to ensure height
Temperature, the rigidity of high-pressure molding process mould structure and precision, it can be ensured that the Forming Quality of part and precision.Upper die 7 uses aluminum
Manufacture.Semi-rigid pressure pad 2 can use EW100A/BA9913 glass cloth prepreg to spread with [+45/-45/-45/+45] laying
Folded curing molding, web district has deformability, deformable in demolishing process, can maintain own profile after dismounting, and can be from
Closing of 20 ° of ＜ α ＜ 90 ° is taken off in the rigid die of angle.Left border stripe shape surface cover 3, right border stripe shape surface cover 4 use T300/
BA9913 carbon fiber prepreg is with [+45/0/-45/90]3SLaying laying on edge strip profile cover plate lay-up molding mould 6 is solidified into
Type, its profile is consistent with profile outside part edge strip.
Claims (5)
1. being used for closing a corner structure composite forming frock, composite forming frock includes lower die, upper die, and it is special
Levying and be, composite forming frock also includes left and right edge strip profile cover plate, semi-rigid pressure pad；The outer mold surface of lower die with
The web profile of composite material parts angle of release part is consistent, and lower die is as the laying in composite material parts angle of release part web district
Mould, semi-rigid pressure pad uses glass cloth prepreg laying curing molding, the outer mold surface of semi-rigid pressure pad and composite zero
The web profile that part closes angle part is consistent, and semi-rigid pressure pad is placed on upper die, and semi-rigid pressure pad is combined with upper die
Close the laying mould in web district, angle part afterwards as composite material parts, on lower die and semi-rigid pressure pad, laying is combined respectively
Material parts angle of release part web district and after closing the laying group in web district, angle part, upper and lower die carries out matched moulds, then by laying
The composite material parts left and right edge strip district's laying group completed and trigonum filler are respectively placed in the arranged on left and right sides of upper and lower die,
Remove upper die, more left and right edge strip profile cover plate is individually positioned in outside composite material parts edge strip district laying group also
Device is controlled as part edge strip district's pressure transmission medium and profile after positioning with lower die；Composite forming frock has encapsulated
Cheng Hou, enters autoclave and carries out curing molding, then go out the tank demoulding, in knockout course, first carry out tearing open of semi-rigid pressure pad
Remove, then carry out the dismounting of left and right edge strip profile cover plate, finally part is taken off on lower die.
2. one as claimed in claim 1 is used for closing corner structure composite forming frock, it is characterised in that described lower firmly
The integrated tooling that mould, left and right edge strip profile cover plate, semi-rigid pressure pad are combined into is applicable to web surface and edge strip face to be had and closes angle
" work " type or " J " type cross section composite material parts, and web surface and 20 ° of ＜ α ＜ of edge strip face angle 90 °.
3. one as claimed in claim 1 is used for closing corner structure composite forming frock, it is characterised in that described lower firmly
Mold materials uses Q235A.
4. one as claimed in claim 1 is used for closing corner structure composite forming frock, it is characterised in that described upper firmly
Mold materials uses wood materials, plastics or aluminum.
5. one as claimed in claim 1 is used for closing corner structure composite forming frock, it is characterised in that a described left side,
Right border stripe shape surface cover uses or the material manufacture of thermal coefficient of expansion same levels consistent with composite material parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610887324.0A CN106313586B (en) | 2016-10-11 | 2016-10-11 | One kind is for closing corner structure composite molding tooling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610887324.0A CN106313586B (en) | 2016-10-11 | 2016-10-11 | One kind is for closing corner structure composite molding tooling |
Publications (2)
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| CN106313586A true CN106313586A (en) | 2017-01-11 |
| CN106313586B CN106313586B (en) | 2018-07-24 |
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| CN201610887324.0A Active CN106313586B (en) | 2016-10-11 | 2016-10-11 | One kind is for closing corner structure composite molding tooling |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107618195A (en) * | 2017-09-30 | 2018-01-23 | 江西洪都航空工业集团有限责任公司 | A kind of fiberglass air intake duct closes the localization method of corner structure spoiler |
| CN108284620A (en) * | 2017-11-30 | 2018-07-17 | 江西洪都航空工业集团有限责任公司 | A kind of composite material multi-wall type co-curing integral panel shaping dies |
| CN108688192A (en) * | 2017-04-12 | 2018-10-23 | 深圳市泰格尔航天航空科技有限公司 | A kind of C-type beam composite molding tooling and composite material C-type beam forming method |
| CN109094049A (en) * | 2018-09-04 | 2018-12-28 | 沈阳飞机工业（集团）有限公司 | H-type composite material honeycomb rib is manufactured method |
| CN109304876A (en) * | 2018-11-16 | 2019-02-05 | 中航复合材料有限责任公司 | A kind of RTM forming method of composite material blade |
| CN110385861A (en) * | 2019-07-20 | 2019-10-29 | 成都飞机工业（集团）有限责任公司 | A kind of molding mold of composite material I-shaped beam and method |
| CN110815874A (en) * | 2019-11-21 | 2020-02-21 | 航天特种材料及工艺技术研究所 | Forming die and method for I-shaped composite material component with closing-up structure |
| CN113246493A (en) * | 2021-04-28 | 2021-08-13 | 常州启赋安泰复合材料科技有限公司 | Forming die of closed-angle part and manufacturing and using method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108688192A (en) * | 2017-04-12 | 2018-10-23 | 深圳市泰格尔航天航空科技有限公司 | A kind of C-type beam composite molding tooling and composite material C-type beam forming method |
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| CN107618195A (en) * | 2017-09-30 | 2018-01-23 | 江西洪都航空工业集团有限责任公司 | A kind of fiberglass air intake duct closes the localization method of corner structure spoiler |
| CN108284620A (en) * | 2017-11-30 | 2018-07-17 | 江西洪都航空工业集团有限责任公司 | A kind of composite material multi-wall type co-curing integral panel shaping dies |
| CN109094049A (en) * | 2018-09-04 | 2018-12-28 | 沈阳飞机工业（集团）有限公司 | H-type composite material honeycomb rib is manufactured method |
| CN109304876B (en) * | 2018-11-16 | 2020-10-20 | 中航复合材料有限责任公司 | RTM (resin transfer molding) method for composite material blade |
| CN109304876A (en) * | 2018-11-16 | 2019-02-05 | 中航复合材料有限责任公司 | A kind of RTM forming method of composite material blade |
| CN110385861A (en) * | 2019-07-20 | 2019-10-29 | 成都飞机工业（集团）有限责任公司 | A kind of molding mold of composite material I-shaped beam and method |
| CN110385861B (en) * | 2019-07-20 | 2021-09-07 | 成都飞机工业（集团）有限责任公司 | Method for forming composite material I-beam |
| CN110815874A (en) * | 2019-11-21 | 2020-02-21 | 航天特种材料及工艺技术研究所 | Forming die and method for I-shaped composite material component with closing-up structure |
| CN110815874B (en) * | 2019-11-21 | 2021-06-25 | 航天特种材料及工艺技术研究所 | Forming die and method for I-shaped composite material component with closing-up structure |
| CN113246493A (en) * | 2021-04-28 | 2021-08-13 | 常州启赋安泰复合材料科技有限公司 | Forming die of closed-angle part and manufacturing and using method thereof |
| CN113246493B (en) * | 2021-04-28 | 2022-12-06 | 常州启赋安泰复合材料科技有限公司 | Forming die of closed-angle part and manufacturing and using method thereof |
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|---|---|
| CN106313586B (en) | 2018-07-24 |
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