CN106738504B - A kind of preparation method for the composite material Z-pin enhancing equal pressing plate of reinforcement sheet metal forming - Google Patents
A kind of preparation method for the composite material Z-pin enhancing equal pressing plate of reinforcement sheet metal forming Download PDFInfo
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- CN106738504B CN106738504B CN201611080670.4A CN201611080670A CN106738504B CN 106738504 B CN106738504 B CN 106738504B CN 201611080670 A CN201611080670 A CN 201611080670A CN 106738504 B CN106738504 B CN 106738504B
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- Prior art keywords
- pressing plate
- equal pressing
- rib
- covering
- horizontal bar
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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)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Manufacturing & Machinery (AREA)
- Laminated Bodies (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The present invention relates to a kind of preparation methods for the composite material Z-pin enhancing equal pressing plate of reinforcement sheet metal forming, belong to composite material manufacturing field.Low pressure glass epoxy manufacturing process of the invention is simple, at low cost, easy processing, is suitable for different size stiffened panels, accurate positioning, and stiffened panel web thickness and surface quality can be controlled very well, it is able to solve the insertion of Z-pin needle point and equal pressing plate self-deformation problem, it can ensure product quality, 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 methods for the composite material Z-pin enhancing equal pressing plate of reinforcement sheet metal forming, belong to multiple
Condensation material manufacturing field.
Background technique
High-performance and low-cost composite technology has obtained gradually starting in Aeronautics and Astronautics composite structure in recent years
Application, and Z-pin technology is one of advanced manufacturing technology, it is the Z-direction fiber preform body that will be prepared in advance,
It is embedded into prepreg or uncured composite material by the way of certain, forms the composite wood of three-dimensional enhancing after solidifying
Expect structure.The binding ability between each sublayer of laminate can be improved in the structure, and then it is composite laminated to reach solution
Between plate toughness it is poor, it is easy layering, impact capacity difference problem, while can also play the role of raising connector intensity.
The most important purposes of Z-pin technology is enhancing composite material reinforcing rib and siding, and most of typical structure part is all
, muscle more with reinforcing rib be distributed as in length and breadth twocouese, the height of muscle and width are smaller, muscle is elongated, muscle should be perpendicular to siding face
Feature.The molding of Composite Material Stiffened Panel with the enhancing of Z-pin needle is generally adopted by co-curing forming technique, that is, reinforces
Muscle and siding are temperature-pressure molding together after prepreg state implantation Z-pin needle.
In order to guarantee the verticality and flatness of muscle, equal pressing plate is placed generally on muscle, pressure more conventional at present
Plate is the equal pressing plate of metal, since muscle height is small, causes equal pressing plate that must be made elongated, and elongated metal strip is easy to generate change
Shape is also difficult to fit with muscle, to cause after reinforcement sheet metal forming that there are rarefaction defects, muscle table for muscle in solidification under high pressure effect
The problem of face out-of-flatness, muscle out of plumb.In addition, because prepreg is uncured compression, owning after Z-pin needle implantation prepreg
Best condition after the implantation of Z-pin needle is also to flush with prepreg surface, and Z-pin needle can protrude panel surface after muscle solidification,
Z-pin needle is the carbon needle of hot setting, and hardness is very big, and needle can also withstand the equal pressing plate of metal, leads to the periphery quality for having Z-pin needle
It is defective.
Summary of the invention
The purpose of the present invention is to provide a kind of preparation sides for the composite material Z-pin enhancing equal pressing plate of reinforcement sheet metal forming
Method, to solve the problems, such as the Forming Quality of Material Stiffened Panel.
The present invention to achieve the goals above, adopts the following technical scheme that
1. a kind of preparation method for the composite material Z-pin enhancing equal pressing plate of reinforcement sheet metal forming, the work of the preparation method
Skill is as follows:
1) according to Z-pin Material Stiffened Panel lengthways of rod and covering size and shape, customized a set of metal mother；According still further to cross
To rib size, customized another set of master mold；Above-mentioned two sets of master molds are cleaned up with acetone when use；
2) configuration glue is required according to the proportion, prepares prepreg；
3) paving longitudinal rib and the equal pressing plate of covering disjunctor, the equal pressing plate of horizontal bar are distinguished on corresponding mold, according to reinforcement wall
Plate thickness calculates the paving number of plies；
4) room temperature curing is not less than obtains the equal pressing plate of Material Stiffened Panel afterwards for 24 hours, will according to the flange of T-type rib and height dimension
Product after longitudinal rib and the equal pressing plate of covering disjunctor and the equal pressing plate of horizontal bar solidify carries out numerical control processing, subsequent used equal to ensure
Then the equal pressing plate rectangular area of horizontal bar is carried out chamfering, so that rib is docked with covering by the straightness of pressing plate and required precision
The surfacing in area, reduces the appearance that surface folding and rib rise, and processing obtains Contiuum type glass epoxy and the equal pressing plate of horizontal bar, wraps
One layer of tetrafluoroethene cloth is covered, it is spare after paving is smooth.
Glue in step 2 is J-4 glue.
Prepreg in step 2 is EW210/J-4 prepreg.
Emphasis of the present invention is two aspect of structure type of equal laminate material and equal pressing plate.It is analyzed from material first, due to
All reinforcing rib section crimp sizes are smaller, and rib is longer, and the equal pressing plate deformation of the metal processed is serious.Although reinforcing rib is solid
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 the needle point of Z-pin needle is also to gold
Belonging to equal pressing plate cannot be embedded in.The present invention has selected low temperature moulding glass-reinforced plastic material on the material selection of equal pressing plate first
(EW210/J-4), which can occur rigidity and intensity decline under 180 ° of high temperature, be able to solve needle point insertion and equal pressing plate certainly
Body problem on deformation.
The covering of Z-pin stiffened panel structure is non-equal thickness, and there are collapsed positions for rib.Secondly in equal pressure plate structure side
The equal pressing plate of glass reinforced plastic is made Contiuum type and with sinking, reduces the deformation of equal pressing plate, equal pressing plate is bonded wheat flour with stiffened panel by face
At smooth surface, the surface quality of reinforcing rib is improved.According to the designability characteristic of glass reinforced plastic, Contiuum type is made in the equal pressing plate of glass reinforced plastic
It sink with band, equal pressing plate can be used extremely to be bonded with actual parts.The equal pressing plate of longitudinal rib and the equal pressing plate in covering area are disjunctor, formerly
Shape face metal mother upper berth, solidification and processing in milling is good.Lateral rib is fabricated separately, and the metal mother of the good interior shape of formerly milling
Upper paving, solidification and processing.
Beneficial effects of the present invention
Low pressure glass epoxy manufacturing process of the invention is simple, at low cost, easy processing, is suitable for different size reinforcements
Plate, accurate positioning, and can control stiffened panel web thickness and surface quality very well are able to solve Z-pin needle point insertion and
Pressing plate self-deformation problem, can ensure product quality, have larger market application value, be worth in industry promoting the use of.
Detailed description of the invention
Fig. 1 is Z-pin stiffened panel rib assistant formation structural schematic diagram；
In Fig. 1: 1-T type rib；The equal pressing plate of 2- metal；3-Z-pin implanted region；4- covering；The equal pressing plate of 5- covering；
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 two rib of A-；B- rib width；C- rib height；
Fig. 3 is the equal pressing plate schematic diagram of horizontal bar of the present invention；
In Fig. 3: A1- reinforcing rib flange width；B1- reinforcement height.
Specific embodiment
Present invention will now be described in detail with reference to the accompanying drawings.:
1. a kind of preparation method for the composite material Z-pin enhancing equal pressing plate of reinforcement sheet metal forming, the work of the preparation method
Skill is as follows:
1) according to Z-pin Material Stiffened Panel lengthways of rod and covering size and shape, customized a set of metal mother；According still further to cross
To rib size, customized another set of master mold；Above-mentioned two sets of master molds are cleaned up with acetone when use；
2) configuration glue is required according to the proportion, prepares prepreg；
3) paving longitudinal rib and the equal pressing plate of covering disjunctor, the equal pressing plate of horizontal bar are distinguished on corresponding mold, according to reinforcement wall
Plate thickness calculates the paving number of plies；
4) room temperature curing is not less than obtains the equal pressing plate of Material Stiffened Panel afterwards for 24 hours, will according to the flange of T-type rib and height dimension
Product after longitudinal rib and the equal pressing plate of covering disjunctor and the equal pressing plate of horizontal bar solidify carries out numerical control processing, subsequent used equal to ensure
Then the equal pressing plate rectangular area of horizontal bar is carried out chamfering, so that rib is docked with covering by the straightness of pressing plate and required precision
The surfacing in area, reduces the appearance that surface folding and rib rise, and processing obtains Contiuum type glass epoxy and the equal pressing plate of horizontal bar, wraps
One layer of tetrafluoroethene cloth is covered, it is spare after paving is smooth.
Glue in step 2 is J-4 glue.
Prepreg in step 2 is EW210/J-4 prepreg.
Claims (1)
1. a kind of preparation method for the composite material Z-pin enhancing equal pressing plate of reinforcement sheet metal forming, which is characterized in that the preparation side
The technique of method is as follows:
1) according to Z-pin Material Stiffened Panel lengthways of rod and covering size and shape, customized a set of metal mother；According still further to horizontal bar
Size, customized another set of master mold；Above-mentioned two sets of master molds are cleaned up with acetone when use；
2) configuration glue is required according to the proportion, prepares prepreg；
3) paving longitudinal rib and the equal pressing plate of covering disjunctor, the equal pressing plate of horizontal bar are distinguished on corresponding mold, according to Material Stiffened Panel thickness
Degree calculates the paving number of plies；
4) room temperature curing, will be longitudinal according to the flange of T-type rib and height dimension not less than the equal pressing plate of Material Stiffened Panel is obtained afterwards for 24 hours
Product after muscle and the equal pressing plate of covering disjunctor and the equal pressing plate of horizontal bar solidify carries out numerical control processing, to ensure subsequent equal pressing plate used
Straightness and required precision, the equal pressing plate rectangular area of horizontal bar is then subjected to chamfering, so that rib and covering docking area
Surfacing, reduces the appearance that surface folding and rib rise, and processing obtains longitudinal rib and presses with the equal pressing plate of covering disjunctor and horizontal bar
Plate coats one layer of tetrafluoroethene cloth, spare after paving is smooth.
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 CN106738504A (en) | 2017-05-31 |
| CN106738504B true CN106738504B (en) | 2019-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| 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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Families Citing this family (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 |
Family Cites Families (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 |
| DE102007015517A1 (en) * | 2007-03-30 | 2008-10-02 | Airbus Deutschland Gmbh | Process for producing a structural component |
| EP2440395B1 (en) * | 2009-06-12 | 2014-11-19 | Alenia Aermacchi 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 |
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