CN106738504A - A kind of preparation method for strengthening the equal pressing plate of reinforcement sheet metal forming for composite Z pin - Google Patents
A kind of preparation method for strengthening the equal pressing plate of reinforcement sheet metal forming for composite Z pin Download PDFInfo
- Publication number
- CN106738504A CN106738504A CN201611080670.4A CN201611080670A CN106738504A CN 106738504 A CN106738504 A CN 106738504A CN 201611080670 A CN201611080670 A CN 201611080670A CN 106738504 A CN106738504 A CN 106738504A
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- Prior art keywords
- pressing plate
- equal pressing
- pin
- composite
- preparation
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- B29C33/3842—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
- B29C33/42—Moulds or cores; Details thereof or accessories therefor characterised by the shape of the moulding surface, e.g. ribs or grooves
-
- 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
- B29C70/543—Fixing the position or configuration of fibrous reinforcements before or during moulding
-
- 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
- B29L2031/757—Moulds, cores, dies
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Laminated Bodies (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The present invention relates to a kind of preparation method for strengthening the equal pressing plate of reinforcement sheet metal forming for composite Z pin, belong to composite manufacture field.Low pressure glass epoxy manufacturing process of the invention is simple, low cost, easy processing, suitable for different size stiffened panel, accurate positioning, and can very well control stiffened panel web thickness and surface quality, can solve the problem that the insertion of Z pins point and equal pressing plate self-deformation problem, product quality can be ensured, with larger market application value, it is worth in industry promoting the use of.
Description
Technical field
The present invention relates to a kind of preparation method for strengthening the equal pressing plate of reinforcement sheet metal forming for composite Z-pin, belong to multiple
Condensation material manufactures field.
Background technology
High-performance and low-cost composite technology has obtained progressively starting in Aeronautics and Astronautics composite structure in recent years
Application, and Z-pin technologies are one of which advanced manufacturing technology, it is the Z-direction fiber preform body that will be prepared in advance,
In being embedded into prepreg or uncured composite by the way of certain, three-dimensional enhanced composite wood is formed after solidification
Material structure.The structure can improve the binding ability between each sublayer of laminate, and then it is composite laminated to reach solution
Toughness is poor between plate, easy layering, the problem of impact capacity difference, while may also function as improving the effect of connector intensity.
The most important purposes of Z-pin technologies is enhancing composite reinforcement and wallboard, and most typical structure part is all
With reinforcement is more, muscle be distributed as in length and breadth twocouese, the height of muscle and width are smaller, muscle is elongated, muscle should be perpendicular to wallboard face
Feature.Shaping with the enhanced Composite Material Stiffened Panel of Z-pin pins is generally adopted by co-curing forming technique, that is, strengthen
Muscle and wallboard are temperature-pressure shaping in the lump after prepreg state implantation Z-pin pins.
In order to ensure the perpendicularity and flatness of muscle, equal pressing plate is placed typically on muscle, at present more conventional pressure
Plate is the equal pressing plate of metal, because muscle is highly small, causes equal pressing plate to be made elongated, and elongated bonding jumper is easy to produce change
Shape, also is difficult to be fitted with muscle, so as to muscle has rarefaction defect, muscle table after causing reinforcement sheet metal forming in solidification under high pressure effect
Face out-of-flatness, the problem of muscle out of plumb.Additionally, after Z-pin pins implantation prepreg, because prepreg is uncured compression, owning
Best condition after the implantation of Z-pin pins is also to be flushed with prepreg surface, and Z-pin pins can protrude panel surface after muscle solidification,
Z-pin pins are the carbon pins of hot setting, and hardness is very big, and pin can also withstand the equal pressing plate of metal, cause the periphery quality for having Z-pin pins
It is defective.
The content of the invention
It is an object of the invention to provide a kind of preparation side for strengthening the equal pressing plate of reinforcement sheet metal forming for composite Z-pin
Method, so as to solve the problems, such as the Forming Quality of Material Stiffened Panel.
The present invention to achieve these goals, is adopted the following technical scheme that：
A kind of preparation method for strengthening the equal pressing plate of reinforcement sheet metal forming for composite Z-pin, the technique of the preparation method is as follows：
1）According to Z-pin Material Stiffened Panels lengthways of rod and covering size and profile, customized a set of metal mother；According still further to horizontal bar
Bar size, customized another set of master mold；Above-mentioned two sets of master molds are cleaned up with acetone when using；
2）Configuration glue, prepares prepreg；
3）Distinguish paving longitudinal rib and the equal pressing plate of covering disjunctor, the equal pressing plate of horizontal bar on correspondence mould, it is thick according to Material Stiffened Panel
Degree calculates the paving number of plies；
4）Not less than the equal pressing plate of Material Stiffened Panel is obtained after 24h, the flange and height dimension according to T-shaped rib are by two kinds for cold curing
Glass epoxy carries out digital control processing, to ensure the follow-up linearity of pressing plate and required precision used, then by glass epoxy R angles
Region carries out chamfering so that rib and the surfacing of covering docking area, reduces the appearance that surface folding and rib rise, and processing is obtained
Contiuum type glass epoxy and the independent equal pressing plate of rib assistant formation, coat one layer of tetrafluoroethene cloth, and paving is smooth rear standby.
Step 2）In glue be J-4 glues.
Step 2）In prepreg be EW210/J-4 prepregs.
The present invention is it is important that in terms of the structure type two of laminate material and equal pressing plate.Analyzed first from material, due to
All reinforcement section crimp sizes are smaller, and rib is more long, and the equal pressing plate deformation of the metal for processing is serious.Although reinforcement is consolidated
Change has 180 ° of temperature and 8 kilograms of pressure, but this pressure is difficult to make the equal pressing plate of metal directly, and Z-pin pins needle point also to gold
Belonging to equal pressing plate can not be embedded in.The present invention have selected low temperature moulding glass-reinforced plastic material on the material selection of equal pressing plate first
（EW210/J-4）, the material can occur rigidity under 180 ° of high temperature and intensity declines, and can solve the problem that needle point insertion and equal pressing plate certainly
Body problem on deformation.
The covering of Z-pin stiffened panel structures is non-equal thickness, and rib has collapsed position.Secondly in equal pressure plate structure side
Face, is made the equal pressing plate of fiberglass Contiuum type and band sink, reduces the binding face system of the deformation of equal pressing plate, equal pressing plate and stiffened panel
Into smooth surface, the surface quality of reinforcement is improved.Designability characteristic according to fiberglass, Contiuum type is made by the equal pressing plate of fiberglass
It is sunk with band, can be used equal pressing plate extremely to be fitted with actual parts.The equal pressing plate of longitudinal rib is disjunctor with the equal pressing plate in covering area, formerly
Shape face metal mother upper berth, solidification and processing in milling is good.Horizontal rib is fabricated separately, and is also the metal mother of the good interior shape of first milling
Upper paving, solidification and processing.
Beneficial effects of the present invention
Low pressure glass epoxy manufacturing process of the invention is simple, low cost, easy processing, suitable for different size stiffened panel,
Accurate positioning, and stiffened panel web thickness and surface quality can be very well controlled, can solve the problem that the insertion of Z-pin needle points and equal pressing plate
Self-deformation problem, can ensure product quality, with larger market application value, be worth in industry promoting the use of.
Brief description of the drawings
Fig. 1 is Z-pin stiffened panel rib assistant formation structural representations；
In Fig. 1：1-T type ribs；The equal pressing plate of 2- metals；3-Z-pin implanted region；4- coverings；The equal pressing plate of 5- coverings；
Fig. 2 is lengthways of rod of the present invention and the equal pressing plate schematic diagram of covering disjunctor；
In Fig. 2：Covering width between the ribs of A- two；B- rib width；C- ribs are highly；
Fig. 3 is the equal pressing plate schematic diagram of horizontal bar of the present invention；
In Fig. 3：A1- reinforcement flange widths；B1- reinforcements are highly.
Specific embodiment
The present invention will be described in detail below in conjunction with the accompanying drawings：
A kind of preparation method for strengthening the equal pressing plate of reinforcement sheet metal forming for composite Z-pin, the technique of the preparation method is as follows：
1）According to Z-pin Material Stiffened Panels lengthways of rod and covering size and profile, customized a set of metal mother；According still further to horizontal bar
Bar size, customized another set of master mold；Above-mentioned two sets of master molds are cleaned up with acetone when using；
2）Glue is configured according to ratio requirement, prepreg is prepared；
3）Distinguish paving longitudinal rib and the equal pressing plate of covering disjunctor, the equal pressing plate of horizontal bar on correspondence mould, it is thick according to Material Stiffened Panel
Degree calculates the paving number of plies；
4）Not less than the equal pressing plate of Material Stiffened Panel is obtained after 24h, the flange and height dimension according to T-shaped rib are by two kinds for cold curing
Glass epoxy carries out digital control processing, to ensure the follow-up linearity of pressing plate and required precision used, then by glass epoxy R angles
Region carries out chamfering so that rib and the surfacing of covering docking area, reduces the appearance that surface folding and rib rise, and processing is obtained
Contiuum type glass epoxy and the independent equal pressing plate of rib assistant formation, coat one layer of tetrafluoroethene cloth, and paving is smooth rear standby.
Step 2）In glue be J-4 glues.
Step 2）In prepreg be EW210/J-4 prepregs.
Claims (3)
1. it is a kind of for composite Z-pin strengthen the equal pressing plate of reinforcement sheet metal forming preparation method, it is characterised in that the preparation side
The technique of method is as follows：
1）According to Z-pin Material Stiffened Panels lengthways of rod and covering size and profile, customized a set of metal mother；According still further to horizontal bar
Bar size, customized another set of master mold；Above-mentioned two sets of master molds are cleaned up with acetone when using；
2）Glue is configured according to ratio requirement, prepreg is prepared；
3）Distinguish paving longitudinal rib and the equal pressing plate of covering disjunctor, the equal pressing plate of horizontal bar on correspondence mould, it is thick according to Material Stiffened Panel
Degree calculates the paving number of plies；
4）Not less than the equal pressing plate of Material Stiffened Panel is obtained after 24h, the flange and height dimension according to T-shaped rib are by two kinds for cold curing
Glass epoxy carries out digital control processing, to ensure the follow-up linearity of pressing plate and required precision used, then by glass epoxy R angles
Region carries out chamfering so that rib and the surfacing of covering docking area, reduces the appearance that surface folding and rib rise, and processing is obtained
Contiuum type glass epoxy and the independent equal pressing plate of rib assistant formation, coat one layer of tetrafluoroethene cloth, and paving is smooth rear standby.
2. the preparation method for strengthening the equal pressing plate of reinforcement sheet metal forming for composite Z-pin according to claim 1, it is special
Levy and be：Step 2）In glue be J-4 glues.
3. the preparation method for strengthening the equal pressing plate of reinforcement sheet metal forming for composite Z-pin according to claim 1, it is special
Levy and be：Step 2）In prepreg be EW210/J-4 prepregs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611080670.4A CN106738504B (en) | 2016-11-30 | 2016-11-30 | A kind of preparation method for the composite material Z-pin enhancing equal pressing plate of reinforcement sheet metal forming |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611080670.4A CN106738504B (en) | 2016-11-30 | 2016-11-30 | A kind of preparation method for the composite material Z-pin enhancing equal pressing plate of reinforcement sheet metal forming |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106738504A true CN106738504A (en) | 2017-05-31 |
| CN106738504B CN106738504B (en) | 2019-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611080670.4A Active CN106738504B (en) | 2016-11-30 | 2016-11-30 | A kind of preparation method for the composite material Z-pin enhancing equal pressing plate of reinforcement sheet metal forming |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108688196A (en) * | 2018-06-22 | 2018-10-23 | 西安飞机工业（集团）有限责任公司 | A kind of forming method and molding die of technique for aircraft composite siding |
| CN109016266A (en) * | 2018-07-09 | 2018-12-18 | 江西洪都航空工业集团有限责任公司 | A kind of general composite material T-type section rib positioning device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5876546A (en) * | 1997-09-25 | 1999-03-02 | The Boeing Company | Method for forming inner mold line tooling without a part model |
| US6431850B1 (en) * | 2000-08-11 | 2002-08-13 | General Electric Company | Composite caul sheet with integral seal used in the fabrication of lightweight airfoils and method of making |
| WO2010143212A1 (en) * | 2009-06-12 | 2010-12-16 | Alenia Aeronautica S.P.A. | A method of manufacturing stiffened panels made from composite material |
| CN104690988A (en) * | 2007-03-30 | 2015-06-10 | 空中客车运营有限公司 | Method for producing a structural component |
| CN105196620A (en) * | 2015-10-20 | 2015-12-30 | 南京航空航天大学 | Partially-enhanced X-cor foam core sandwich T-joint structure and molding method |
-
2016
- 2016-11-30 CN CN201611080670.4A patent/CN106738504B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5876546A (en) * | 1997-09-25 | 1999-03-02 | The Boeing Company | Method for forming inner mold line tooling without a part model |
| US6431850B1 (en) * | 2000-08-11 | 2002-08-13 | General Electric Company | Composite caul sheet with integral seal used in the fabrication of lightweight airfoils and method of making |
| CN104690988A (en) * | 2007-03-30 | 2015-06-10 | 空中客车运营有限公司 | Method for producing a structural component |
| WO2010143212A1 (en) * | 2009-06-12 | 2010-12-16 | Alenia Aeronautica S.P.A. | A method of manufacturing stiffened panels made from composite material |
| CN105196620A (en) * | 2015-10-20 | 2015-12-30 | 南京航空航天大学 | Partially-enhanced X-cor foam core sandwich T-joint structure and molding method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108688196A (en) * | 2018-06-22 | 2018-10-23 | 西安飞机工业（集团）有限责任公司 | A kind of forming method and molding die of technique for aircraft composite siding |
| CN109016266A (en) * | 2018-07-09 | 2018-12-18 | 江西洪都航空工业集团有限责任公司 | A kind of general composite material T-type section rib positioning device |
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| Publication number | Publication date |
|---|---|
| CN106738504B (en) | 2019-05-28 |
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