CN113843927A - Forming die of unmanned aerial vehicle combined material spare part - Google Patents
Forming die of unmanned aerial vehicle combined material spare part Download PDFInfo
- Publication number
- CN113843927A CN113843927A CN202111123151.2A CN202111123151A CN113843927A CN 113843927 A CN113843927 A CN 113843927A CN 202111123151 A CN202111123151 A CN 202111123151A CN 113843927 A CN113843927 A CN 113843927A
- Authority
- CN
- China
- Prior art keywords
- die
- core film
- connecting lug
- lug plate
- female die
- Prior art date
- 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.)
- Pending
Links
- 239000000463 material Substances 0.000 title claims abstract description 8
- 239000002131 composite material Substances 0.000 claims abstract description 33
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 7
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 15
- 239000004917 carbon fiber Substances 0.000 claims description 15
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 15
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000007493 shaping process Methods 0.000 abstract 1
- 238000009740 moulding (composite fabrication) Methods 0.000 description 23
- 238000000034 method Methods 0.000 description 15
- 230000004888 barrier function Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000000748 compression moulding Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009787 hand lay-up Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
- 239000000805 composite resin Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- 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
- B29C33/30—Mounting, exchanging or centering
- B29C33/303—Mounting, exchanging or centering centering mould parts or halves, e.g. during mounting
-
- 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
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
-
- 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
- B29L2031/3076—Aircrafts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model provides a forming die of unmanned aerial vehicle combined material spare part, belongs to the combined material shaping field. The invention aims to solve the problems that an existing unmanned aerial vehicle composite part forming die cannot align a silicon rubber die with an inner cavity of a female die, so that a workpiece is stressed unevenly, and the quality of the workpiece is influenced. The male die is provided with a raised section die, a male die connecting lug plate and a male die positioning hole; the expansion core film is provided with an expansion body, a core film connecting lug plate and a core film positioning hole; the female die is provided with a die cavity, a female die connecting lug plate and a female die positioning hole; the base is provided with an accommodating cavity, the upper end surface of the base is fixedly connected with a plurality of positioning columns, and the outer diameters of the positioning columns are the same as the inner diameters of the male die positioning hole, the core film positioning hole and the female die positioning hole; the female die, the expansion core film and the male die are sequentially connected and positioned with the positioning columns on the base through respective positioning holes and are fastened through fastening nuts. The invention is mainly used for manufacturing composite material parts of the unmanned aerial vehicle.
Description
Technical Field
The invention belongs to the field of composite material forming, and particularly relates to a forming die for composite material parts of an unmanned aerial vehicle.
Background
The existing composite material forming technology comprises extrusion forming, injection forming, compression molding, winding forming, hand lay-up forming, mixing, calendaring forming and the like, composite material parts of the unmanned aerial vehicle are produced domestically, common forming methods mainly comprise hand lay-up forming and compression molding, and compared with other forming methods, the two forming methods have the advantages of being fast in forming, low in cost, low in requirement on skill level of operators and the like, and are mainly suitable for composite material parts which are simple in appearance size, general in structural strength and free of special requirements for working environment.
The fiber reinforced thermosetting composite material is a commonly used material in the aerospace field, and along with the progress of light structure and low cost, designers are required to integrate or integrally form all parts at one time so as to reduce the using amount of fasteners and glue joint parts and shorten subsequent processing procedures and assembly procedures, so that the structure of a composite material member is more complex, the technical requirement is higher, and the manufacturing difficulty is higher.
For the preparation of a semi-closed cavity structure of a resin-based composite material, a thermal expansion forming process is generally used, two sets of dies, namely a female die and an expansion core die, must be designed according to the structural characteristics of a workpiece, wherein the female die is a steel die, the size of the inner cavity of the die is the designed overall size of a carbon fiber composite material workpiece, the shape of the expansion core die is the shape of the inner cavity of the composite material workpiece, the size of the inner cavity is smaller than the designed value of the workpiece by a certain amount, the reduced size becomes a process gap, and the key role of the process gap in the whole process is to control the size of a pressurizing point and pressure; as in publication No. CN213056086U, patent name: a forming die for an unmanned aerial vehicle composite material part is a forming die for an unmanned aerial vehicle composite material; the unmanned aerial vehicle parts are complex in structure and different in shape, so that the manufactured rigid female die and the manufactured expansion core die are different in shape and not necessarily have symmetrical structures, before the thermal expansion forming process is carried out, a composite material needs to be laid in an inner cavity of the female die, then the expansion core die is aligned to the inner cavity of the female die, is pressed by a pressing piece and finally placed in an oven for heating and curing, and the expansion core die is a silicon rubber core film, belongs to a soft die and is not easy to align to the special shape in the inner cavity of the female die, so that the stress of a workpiece is not uniform easily in the thermal expansion pressing process, and the quality of the workpiece is finally influenced.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: the existing unmanned aerial vehicle composite material part forming die cannot align a silicon rubber die with an inner cavity of a female die, so that the stress of a workpiece is uneven, and the quality of the workpiece is influenced; and then provide a forming die of unmanned aerial vehicle combined material spare part.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the forming die for the unmanned aerial vehicle composite material part comprises a male die, an expansion core film, a female die, a base and a fastening nut;
the male die is provided with a raised section die, a male die connecting lug plate and a male die positioning hole, the outer edge of the raised section die is integrally connected with the male die connecting lug plate, and the male die connecting lug plate is provided with a plurality of male die positioning holes; the expansion core film is provided with an expansion body, a core film connecting lug plate and a core film positioning hole, the outer edge of the expansion body is integrally connected with the core film connecting lug plate, and the core film connecting lug plate is provided with a plurality of core film positioning holes; the female die is provided with a die cavity, a female die connecting lug plate and a female die positioning hole, the outer edge of the die cavity is integrally connected with the female die connecting lug plate, and the female die connecting lug plate is provided with a plurality of female die positioning holes;
the shape of the expansion body of the expansion core film, the shape of the prefabricated part, the shape of the convex section mould of the male mould and the shape of the cavity of the female mould are the same;
the base is provided with an accommodating cavity, the upper end surface of the base is fixedly connected with a plurality of positioning columns, the outer diameters of the positioning columns are the same as the inner diameters of the male die positioning hole, the core film positioning hole and the female die positioning hole, and the positioning columns are arranged in one-to-one correspondence; the female die, the expansion core film and the male die are sequentially connected and positioned with the positioning columns on the base through respective positioning holes and are fastened through fastening nuts.
Furthermore, the outer edge of the upper end face of the base is also integrally connected with an enclosing barrier, and the inner diameter of the enclosing barrier is the same as the outer diameters of the male die connecting lug plate of the male die, the core film connecting lug plate of the expansion core film and the female die connecting lug plate of the female die.
Furthermore, the upper end of the positioning column is a threaded section, and the lower end of the positioning column is a smooth section; the upper end of the inner wall of the fastening nut is screwed with internal threads, and the lower end of the inner wall is a smooth surface; the thickness of the male die connecting lug plate, the core film connecting lug plate of the expansion core film and the female die connecting lug plate of the female die is less than or equal to the length of the lower end smooth section of the positioning column.
Further, the male die and the female die are rigid dies; the expansion core film is a silicon rubber mold.
Furthermore, demolding wax is arranged between the female die and the carbon fiber composite prepreg, and a porous isolating film is arranged between the carbon fiber composite prepreg and the expansion core film.
Compared with the prior art, the invention has the following beneficial effects:
the peripheries of the male die, the female die and the expansion core film are all provided with connecting lug plates, the connecting lug plates are provided with positioning holes, the matching of the shapes of each part of the dies of the male die, the female die and the expansion core film is realized through the positioning holes and positioning columns on the base, the accurate butt joint is realized, the butt joint process is simple and convenient, the stress of each part of the carbon fiber composite prepreg is more uniform, and the quality of the prefabricated member is ensured.
Drawings
FIG. 1 is an exploded view of the present invention;
FIG. 2 is a vertical cross-sectional view of the present invention;
FIG. 3 is a schematic view of the overall structure of the present invention;
fig. 4 is a schematic view illustrating the positioning column and the fastening nut screwed together.
Detailed Description
The technical solution of the present invention is further described by the specific embodiments with reference to fig. 1 to 4 below:
as shown in fig. 1 to 3, the forming mold for the composite material part of the unmanned aerial vehicle comprises a male mold 1, an expansion core film 2, a female mold 3, a base 4 and a fastening nut 6;
the male die 1 is provided with a convex section die 1-1, a male die connecting lug plate 1-2 and a male die positioning hole 1-3, the outer edge of the convex section die 1-1 is integrally connected with the male die connecting lug plate 1-2, and the male die connecting lug plate 1-2 is provided with a plurality of male die positioning holes 1-3; the expansion core film 2 is provided with an expansion body 2-1, a core film connecting lug plate 2-2 and a core film positioning hole 2-3, the outer edge of the expansion body 2-1 is integrally connected with the core film connecting lug plate 2-2, and the core film connecting lug plate 2-2 is provided with a plurality of core film positioning holes 2-3; the female die 3 is provided with a die cavity 3-1, a female die connecting lug plate 3-2 and a female die positioning hole 3-3, the outer edge of the die cavity 3-1 is integrally connected with the female die connecting lug plate 3-2, and the female die connecting lug plate 3-2 is provided with a plurality of female die positioning holes 3-3;
the shape of the expansion body 2-1 of the expansion core film 2, the shape of the prefabricated part 5, the shape of the convex section mould 1-1 of the male mould 1 and the shape of the cavity 3-1 of the female mould 3 are the same and matched; that is, the inner cavity size of the female die 3 is the same as the design outer dimension of the prefabricated member, the outer shape of the expansion core film 2 is the inner cavity shape of the prefabricated member, the dimension is smaller than the designed value of the prefabricated member by a certain amount,
the base 4 is provided with an accommodating cavity 4-1, the upper end surface of the base 4 is fixedly connected with a plurality of positioning columns 4-2, the outer diameters of the positioning columns 4-2 are the same as the inner diameters of the male die positioning hole 1-3, the core film positioning hole 2-3 and the female die positioning hole 3-3, and the setting positions are in one-to-one correspondence; the female die 3, the expansion core film 2 and the male die 1 are sequentially connected and positioned with a positioning column 4-2 on the base 4 through respective positioning holes and then fastened through a fastening nut 6;
the method comprises the following steps of installing a female die 3 in an accommodating cavity 4-1 of a base 4, positioning by using a positioning hole and a positioning column, laying a carbon fiber composite prepreg in a cavity 3-1 of the female die 3, then sequentially installing an expansion core film 2 and a male die 1 through the positioning hole, and fastening by using a fastening nut 6;
the female die 3 is small in linear expansion coefficient and not easy to expand and deform, the expansion coefficient of the expansion core die 2 is large, the expansion effect is obvious, after the female die 3 is combined with the expansion core die 2, under the condition of heating, pressure is formed in a cavity 3-1 of the female die 3 due to the fact that the expansion core die 2 is limited by the female die 3, pressurization of the carbon fiber composite prepreg curing process is achieved through the pressure, when the composite prepreg curing device is used, external pressure does not need to be provided by means of pressure generated by expansion of the expansion core die 2, and therefore the composite prepreg curing device is suitable for integral curing of complex structural parts and overcomes the defect that pressure is difficult to transfer uniformly in some multi-cavity structures; meanwhile, the positioning holes are formed in the male die 1, the expansion core film 2 and the female die 3, and the positioning columns are arranged on the base 4 to ensure that the model of the silicon rubber die is accurately butted with the model of the inner cavity of the female die, so that the stress of each part of the carbon fiber composite prepreg is more uniform, and the quality of the prefabricated part is ensured.
The base 4 can be applied to the preparation of different prefabricated parts, and the application range is wide as long as the peripheral size of the lug plates on the male die 1, the expansion core film 2 and the female die 3 is ensured to be the same as the inner diameter size of the surrounding baffles 4-3 around the base 4 when respective dies are designed, and the positions of the positioning holes on the lug plates of the male die 1, the expansion core film 2 and the female die 3 are ensured to correspond one to one.
As an optional implementation mode, in order to ensure that the stress of the carbon fiber composite prepreg is more uniform and prevent the expansion pressure generated by the expansion core film 2 from flowing away from the core film connecting lug plate due to the outward expansion of the core film connecting lug plate in the thermal expansion process of the expansion core film 2, the outer edge of the upper end surface of the base 4 is also integrally connected with an enclosure 4-3, and the inner diameter of the enclosure 4-3 is the same as the outer diameters of the male mold connecting lug plate 1-2 of the male mold 1, the core film connecting lug plate 2-2 of the expansion core film 2 and the female mold connecting lug plate 3-2 of the female mold 3.
As an optional implementation manner, in order to ensure accurate positioning among the male die 1, the expansion core film 2 and the female die 3 and prevent a gap from being generated between the positioning hole and the positioning column, the positioning column 4-2 is a threaded section at the upper end and a smooth section at the lower end; the upper end of the inner wall of the fastening nut 6 is screwed with an internal thread, and the lower end of the inner wall is a smooth surface; the thickness of the male die connecting lug plate 1-2, the core film connecting lug plate 2-2 of the expansion core film 2 and the length of the female die connecting lug plate 3-2 of the female die 3 are less than or equal to the length of the smooth section at the lower end of the positioning column, and when the male die connecting lug plate is fastened through the fastening nut, the lower end face of the fastening nut abuts against the upper end face of the male die connecting lug plate 1-2, so that the fastening effect is achieved.
As an alternative embodiment, the male die 1 and the female die 3 are rigid dies; the expansion core membrane 2 is a silicon rubber mould.
As an optional embodiment, a release wax is further disposed between the female die 3 and the carbon fiber composite prepreg, and a porous isolation film is disposed between the carbon fiber composite prepreg and the expansion core film 2, wherein:
uniformly coating the demolding wax along the cavity 3-1 of the female die 3, specifically, preheating the forming die before use, and uniformly coating the demolding wax in the cavity 3-1 of the female die 3 after preheating is finished;
the porous isolating film is placed on the carbon fiber composite prepreg, the porous isolating film is laid on the top layer of the carbon fiber composite prepreg after the laying operation of the carbon fiber composite prepreg is completed, the expansion core mold 2 is pressed into the female mold 3 immediately, the male mold 1 is covered, and the porous isolating film is fixed through the fastening nut 6.
When the male die 1, the expansion core film 2 and the female die 3 are designed into respective dies, besides ensuring that the shapes of the male die 1, the expansion core film 2 and the female die 3 are the same, ear plates are required to be designed on the respective peripheries, the shapes and the sizes of the ear plates of the male die 1, the expansion core film 2 and the female die 3 are the same, holes are formed at corresponding positions of the ear plates, and the corresponding shapes and the positions when the male die 1, the expansion core film 2 and the female die 3 are installed together are ensured.
Claims (5)
1. The utility model provides a forming die of unmanned aerial vehicle combined material spare part which characterized in that: the device comprises a male die (1), an expansion core film (2), a female die (3), a base (4) and a fastening nut (6);
the male die (1) is provided with a convex section die (1-1), a male die connecting lug plate (1-2) and a male die positioning hole (1-3), the outer edge of the convex section die (1-1) is integrally connected with the male die connecting lug plate (1-2), and the male die connecting lug plate (1-2) is provided with a plurality of male die positioning holes (1-3); the expansion core film (2) is provided with an expansion body (2-1), a core film connecting lug plate (2-2) and a core film positioning hole (2-3), the outer edge of the expansion body (2-1) is integrally connected with the core film connecting lug plate (2-2), and the core film connecting lug plate (2-2) is provided with a plurality of core film positioning holes (2-3); the female die (3) is provided with a die cavity (3-1), a female die connecting lug plate (3-2) and a female die positioning hole (3-3), the outer edge of the die cavity (3-1) is integrally connected with the female die connecting lug plate (3-2), and the female die connecting lug plate (3-2) is provided with a plurality of female die positioning holes (3-3);
the shape of the expansion body (2-1) of the expansion core film (2), the shape of the prefabricated part (5), the shape of the convex section mould (1-1) of the male mould (1) and the shape of the cavity (3-1) of the female mould (3) are the same;
the base (4) is provided with an accommodating cavity (4-1), the upper end surface of the base (4) is fixedly connected with a plurality of positioning columns (4-2), the outer diameters of the positioning columns (4-2) are the same as the inner diameters of the male die positioning holes (1-3), the core film positioning holes (2-3) and the female die positioning holes (3-3), and the setting positions are in one-to-one correspondence; the female die (3), the expansion core film (2) and the male die (1) are sequentially connected and positioned with positioning columns (4-2) on the base (4) through respective positioning holes and are fastened through fastening nuts (6).
2. The forming die of claim 1, wherein the forming die comprises: the outer edge of the upper end face of the base (4) is further integrally connected with an enclosing baffle (4-3), and the inner diameter of the enclosing baffle (4-3) is the same as the outer diameters of a male die connecting lug plate (1-2) of the male die (1), a core film connecting lug plate (2-2) of the expansion core film (2) and a female die connecting lug plate (3-2) of the female die (3).
3. The forming die of claim 2, wherein the forming die comprises: the upper end of the positioning column (4-2) is a threaded section, and the lower end of the positioning column is a smooth section; the upper end of the inner wall of the fastening nut (6) is screwed with an internal thread, and the lower end of the inner wall is a smooth surface; the thickness of the core film connecting lug plate (2-2) of the male die connecting lug plate (1-2), the core film connecting lug plate (2-2) of the expansion core film (2) and the thickness of the female die connecting lug plate (3-2) of the female die (3) are less than or equal to the length of the lower end smooth section of the positioning column (4-2).
4. The forming die of claim 3, wherein the forming die comprises: the male die (1) and the female die (3) are rigid dies; the expansion core film (2) is a silicon rubber mold.
5. The forming die of claim 4, wherein the forming die comprises: and a release wax is also arranged between the female die (3) and the carbon fiber composite prepreg, and a porous isolating film is arranged between the carbon fiber composite prepreg and the expansion core film (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111123151.2A CN113843927A (en) | 2021-09-24 | 2021-09-24 | Forming die of unmanned aerial vehicle combined material spare part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111123151.2A CN113843927A (en) | 2021-09-24 | 2021-09-24 | Forming die of unmanned aerial vehicle combined material spare part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113843927A true CN113843927A (en) | 2021-12-28 |
Family
ID=78979310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111123151.2A Pending CN113843927A (en) | 2021-09-24 | 2021-09-24 | Forming die of unmanned aerial vehicle combined material spare part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113843927A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117656538A (en) * | 2024-02-02 | 2024-03-08 | 哈尔滨远驰航空装备有限公司 | Forming die and forming method for special-shaped hollow pipe fitting |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101890807A (en) * | 2010-07-19 | 2010-11-24 | 哈尔滨飞机工业集团有限责任公司 | Method for pressurizing and molding composite part by using thermal expansion of silicone rubber |
| CN204183761U (en) * | 2014-07-31 | 2015-03-04 | 上海复合材料科技有限公司 | Be applicable to the mould that thin-walled composite element is continuously shaped |
| CN213056086U (en) * | 2020-06-05 | 2021-04-27 | 北京金朋达航空科技有限公司 | Forming die of unmanned aerial vehicle combined material spare part |
| CN112936909A (en) * | 2019-12-10 | 2021-06-11 | 中航贵州飞机有限责任公司 | Forming process of thickened V-shaped composite material part at bottom of trainer |
-
2021
- 2021-09-24 CN CN202111123151.2A patent/CN113843927A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101890807A (en) * | 2010-07-19 | 2010-11-24 | 哈尔滨飞机工业集团有限责任公司 | Method for pressurizing and molding composite part by using thermal expansion of silicone rubber |
| CN204183761U (en) * | 2014-07-31 | 2015-03-04 | 上海复合材料科技有限公司 | Be applicable to the mould that thin-walled composite element is continuously shaped |
| CN112936909A (en) * | 2019-12-10 | 2021-06-11 | 中航贵州飞机有限责任公司 | Forming process of thickened V-shaped composite material part at bottom of trainer |
| CN213056086U (en) * | 2020-06-05 | 2021-04-27 | 北京金朋达航空科技有限公司 | Forming die of unmanned aerial vehicle combined material spare part |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117656538A (en) * | 2024-02-02 | 2024-03-08 | 哈尔滨远驰航空装备有限公司 | Forming die and forming method for special-shaped hollow pipe fitting |
| CN117656538B (en) * | 2024-02-02 | 2024-04-26 | 哈尔滨远驰航空装备有限公司 | Forming die and forming method for special-shaped hollow pipe fitting |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108407332B (en) | Compression molding method for composite material grid skin structural part | |
| CN209191346U (en) | Manufacture the molding die of large-scale unmanned plane rib | |
| CN108749030B (en) | Method for preparing composite material pipe by using internal expansion method forming die | |
| CN108819287A (en) | A kind of molding machine and forming method of Material Stiffened Panel component | |
| CN109466088B (en) | Mould and compression molding method for fabric prepreg composite material cylinder | |
| CN111391362A (en) | Thermal expansion and pressure forming method for flat tail silicone rubber of unmanned aerial vehicle composite material | |
| CN113843927A (en) | Forming die of unmanned aerial vehicle combined material spare part | |
| CN112644039A (en) | Large-opening composite material shell, forming method and forming tool | |
| CN113183486A (en) | Composite product preparation tool and preparation method thereof | |
| CN111716761A (en) | Special-shaped curved surface aramid fiber paper honeycomb simple pre-setting die and manufacturing method thereof | |
| CN110815857A (en) | Forming method and application of flexible tool for reinforcing rib and web plate co-bonding | |
| CN109866436B (en) | Manufacturing method for carbon fiber prepreg tape winding bicycle rim | |
| CN110254128B (en) | Forming die of three formula combination rims of carbon fiber | |
| CN107901448B (en) | Large-diameter composite skirt compression curing method | |
| CN116001312A (en) | Manufacturing method of slender carbon fiber composite square tube structural member | |
| CN113232205B (en) | Carbon fiber transfer frame die and integral forming method thereof | |
| CN114311730A (en) | Composite material light shield, forming die and preparation method thereof | |
| CN109822933B (en) | Magnetic field auxiliary pressurizing method for composite material structure forming | |
| CN111497276A (en) | Preparation mold and preparation method of ultrathin and ultralight carbon fiber machine arm | |
| CN215039430U (en) | Resin composite material forming die who easily aligns | |
| CN220741849U (en) | Composite material rod piece forming tool | |
| CN216832345U (en) | Embedded stud protection forming device of LRTM process die | |
| CN110014674A (en) | A kind of fiberglass elbow molding die and its forming method | |
| CN216139446U (en) | Resin transfer molding flat plate sample preparation mold | |
| CN213227649U (en) | Composite cabin forming die |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |