CN114986936A - Automatic manufacturing tool and process for composite stringer and beam structural part - Google Patents
Automatic manufacturing tool and process for composite stringer and beam structural part Download PDFInfo
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- CN114986936A CN114986936A CN202210616708.4A CN202210616708A CN114986936A CN 114986936 A CN114986936 A CN 114986936A CN 202210616708 A CN202210616708 A CN 202210616708A CN 114986936 A CN114986936 A CN 114986936A
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- prepreg
- blank
- adsorption
- prepreg blank
- tool
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- 239000002131 composite material Substances 0.000 title claims abstract description 43
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title abstract description 17
- 238000001179 sorption measurement Methods 0.000 claims abstract description 80
- 239000002184 metal Substances 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000004806 packaging method and process Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 239000012945 sealing adhesive Substances 0.000 claims 1
- 238000002955 isolation Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
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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
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
- B29C70/342—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation using isostatic pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/40—Weight reduction
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The invention belongs to the field of automatic manufacturing, and particularly relates to an automatic manufacturing tool and a process for a composite stringer and beam structure workpiece. The equipment transfer can be realized quickly, the operation is simple and convenient, the repeatability is high, the operation is simple and easy, the manufacturing efficiency is improved, and the labor cost is saved; the prepreg adsorption transfer tool can be adjusted, so that the prepreg blanks in more shapes can be quickly and stably transferred, and the blank transfer efficiency and the workpiece manufacturing efficiency are improved.
Description
Technical Field
The invention belongs to the field of automatic manufacturing, and particularly relates to an automatic manufacturing tool and process for composite stringer and beam structural parts, which are suitable for the automatic manufacturing process for composite C-type, I-type, L-type and other forms of stringer and beam structural parts. The prepreg adsorption transfer tool ensures that prepreg blanks are flat in the transfer process, avoids the situations of deformation, wrinkles and the like in the blank transfer process, ensures the blank quality of a middle link of the manufacture of a workpiece, enables the automatic prepreg paving process and the thermal diaphragm process of the workpiece to be combined smoothly, realizes the full-process automatic manufacture of composite stringer and beam structural workpieces, and ensures the qualification rate and the repeatability of the workpieces.
Background
Along with the continuous improvement of the automatic manufacturing degree of aviation composite material parts, the manufacturing links of composite materials also change, the manufacturing processes of composite material stringers and beams in the past mainly include prepreg cutting, sheet transferring, stacking on a tool, packaging and curing and the like, and along with the application of an automatic tape laying machine and a thermal diaphragm forming machine, the manufacturing of the composite material stringers and beams becomes automatic prepreg stacking, prepreg blank transferring, prepreg thermal diaphragm forming, blank transferring, packaging and curing. The automatic laying of the prepreg is completed through an automatic tape laying machine and a plane laying tool; the thermal diaphragm forming is realized through a thermal diaphragm forming machine and a thermal diaphragm tool; however, there is no proper method for automatically laying and transferring prepreg to a thermal diaphragm tool, and smooth automatic manufacturing process flow of composite stringer and beam parts cannot be realized. In the manufacturing process of long purlin and beam type products made of composite materials, the prepreg blank transfer is an important link in the manufacturing process, and the transfer quality and efficiency directly influence the quality and efficiency of the product manufacturing. If the size of the prepreg blank is small, the prepreg blank can be transferred manually; however, for a workpiece blank with a larger size, the risk of deformation and even wrinkling in the prepreg blank transfer process is increased through manual transfer, and great uncertainty is caused to the manufacturing quality of the workpiece; and the large-size prepreg blank is inconvenient to operate manually and low in efficiency, so that the manufacturing period of a finished piece is prolonged. Therefore, for larger size prepreg blanks, more rational automated transfer methods need to be explored.
Disclosure of Invention
The invention aims to provide a process method designed aiming at the problem of prepreg blank transfer in the automatic manufacturing process of the composite stringer and beam structural part. The prepreg blank adsorption transfer tool can ensure the blank to be fixed by using vacuum adsorption, and can avoid the damage to the local part of the blank caused by using a clamping device; the prepreg blank adsorption transfer tool adopts an integral tool frame structure, so that the shape of the prepreg blank in the transfer process can be ensured, the blank is prevented from deforming and wrinkling, and the quality of the blank is ensured; the prepreg blank adsorption transfer tool can realize smooth connection of automatic manufacturing of composite stringer and beam structural parts, is simple and convenient to operate and high in repeatability, and improves manufacturing efficiency; the adsorption transfer tool can be adjusted, and rapid and stable transfer of prepreg blanks in more shapes can be realized.
The prepreg is finished by an automatic tape laying machine or manual laying to form a prepreg blank with a certain thickness; if the prepreg blank has positioning requirements, the positioning hole can be cut by an ultrasonic cutting machine; transferring the prepreg blank to a thermal diaphragm tool by using a prepreg blank adsorption transfer tool, and assisting the prepreg blank and the thermal diaphragm tool to be positioned; and after the prepreg blank is formed by the thermal diaphragm, transferring the preformed blank to a curing and forming tool by using the prepreg blank adsorption and transfer tool again, packaging a vacuum bag, and curing and forming the workpiece.
The prepreg blank adsorption transfer tool is used for the automatic manufacturing process of a workpiece, such as the transfer process of an automatic laying and thermal diaphragm workpiece, and can be used for the transfer of a manual laying prepreg blank; the prepreg may be in the form of one to several tens of layers, and may be in the form of various flat sheets capable of providing a flat surface, and may be used to produce, but is not limited to, various C-type, i-type, L-type stringer and beam structural members.
The technical scheme of the invention is as follows:
an automatic manufacturing tool for composite stringer and beam structural parts is a prepreg blank adsorption transfer tool and comprises a metal frame 1, an adsorption device 2, a vacuum meter 3, a vacuum system 4 and a hoisting device 5;
the metal frame 1 is an integral metal frame beam structure or a deformable frame structure; the adsorption device 2 comprises a fixed frame 6, an adjusting screw 7, an adsorption soft disk 8 and a vacuum connecting pipe 9;
the adjusting screw 7 is of a hollow screw structure, two ends of the adjusting screw are respectively communicated with the adsorption soft disc 8 and the vacuum connecting pipe 9, and the outer surface of the adjusting screw 7 is provided with threads and a nut matched with the threads; the fixing frame 6 is of an L-shaped plate-shaped structure, the bottom of the fixing frame is provided with a long circular hole, the adjusting screw 7 penetrates through the long circular hole and is fixed on the fixing frame 6 through a nut, and the top end of the fixing frame 6 is connected with the bottom end of the metal frame 1; the vacuum connecting pipe 9 is connected with the vacuum system 4, and the vacuum meter 3 is arranged on the vacuum connecting pipe 9 and used for reading a vacuum value;
the installation number of the adsorption devices 2 is designed according to the condition of the prepreg blank; the adsorption soft disk 8 is made of soft plastic, and the shape and the size of the adsorption soft disk are designed according to the state of a prepreg blank; the hoisting device 5 is arranged at the top of the metal frame 1 and used for hoisting.
The automatic manufacturing process of the composite material stringer and beam structural part according to the tool is characterized by comprising the following steps of:
1) lay-up of composite prepreg blanks
The prepreg blank 10 to be transferred of the composite material is laid on a flat tool 12, a layer of nonporous isolation film 11 is laid on the flat tool 12, the nonporous isolation film 11 is larger than the prepreg blank 10 in size, and the prepreg blank 10 is laid on the nonporous isolation film 11 manually or by an automatic tape laying machine 13;
2) composite prepreg blank adsorption
Moving a prepreg adsorption transfer tool to the position above a prepreg blank 10 by using a crane 14 or other devices through a hoisting device 5, arranging the prepreg adsorption transfer tool according to the shape of the blank 10, lowering the prepreg adsorption transfer tool to enable an adsorption floppy disk 8 to contact the prepreg blank 10, starting a vacuum system 4, observing the numerical value change of a vacuum meter 3 on each adsorption floppy disk 8, judging whether the prepreg blank 10 is stably fixed or not according to the numerical value change, and further transferring the prepreg blank 10;
the adjusting screw 7 on the adsorption device 2 can adjust the position and height through the long round hole on the fixing frame 6 according to actual conditions, so that the adsorption effect of the adsorption floppy disk 8 and the prepreg blank 10 is ensured;
3) tooling for adsorbing and transferring prepreg blank of composite material to thermal diaphragm
Moving a prepreg blank adsorption transfer tool to a thermal diaphragm tool 15 by using a crane 14 or other power devices, positioning the prepreg blank adsorption transfer tool with the thermal diaphragm tool 15 by an operator according to the positioning characteristics of the prepreg blank 10, and adjusting the position of the prepreg blank adsorption transfer tool by adjusting the crane 14 to accurately position the prepreg blank 10 adsorbed by the prepreg blank adsorption transfer tool; closing the vacuum system 4, and removing the prepreg blank adsorption transfer tool when the reading of the vacuum meter is changed to be 0 to finish the transfer work of the prepreg blank 10;
the thermal diaphragm tool 15 and the prepreg blank 10 are subjected to thermal diaphragm forming on a thermal diaphragm bottom platform 19, the thermal diaphragm frame 18 is moved to enable the rubber diaphragm 16 to cover the prepreg blank 10 and the thermal diaphragm tool 15, the rubber diaphragm 16 applies pressure to the prepreg blank 10 by vacuumizing, and the prepreg blank 10 is preformed by heating through an infrared heating lamp 17;
4) composite prepreg blank transferring and forming tool
Transferring the prepreg blank 10 to a workpiece forming tool 20 by using a prepreg blank adsorption transfer tool; and after the transfer is finished, removing the nonporous isolating film 11 on the back of the blank, simultaneously paving the nonporous isolating film 11, the air felt 21 and the vacuum bag 22 on the prepreg blank 10, bonding the packaging part vacuum bag 22 through a sealing rubber strip 23, transferring the composite material prepreg blank to an autoclave for part forming and curing, and finishing the automatic manufacture of the composite material stringer and beam structure part.
The invention has the beneficial effects that:
after the prepreg blank is automatically laid, the prepreg blank is transferred to a thermal diaphragm forming die by using a composite material prepreg blank adsorption transfer tool, so that the full-flow automatic operation of automatic laying and thermal diaphragm forming of the composite material is realized, and the development of automatic manufacturing of the composite material is promoted. And the prepreg blank adsorption transfer tool can ensure the blank quality, so that the product quality of the finished product is ensured. The vacuum adsorption can ensure the fixing of the prepreg blank, and can avoid the damage to the local part of the blank caused by the clamping device; the whole tool frame transfers the prepreg blank, so that the shape of the blank can be ensured, the blank is prevented from deforming and wrinkling, and the quality of the blank is ensured; the equipment transfer can be realized quickly, the operation is simple and convenient, the repeatability is high, the operation is simple and easy, the manufacturing efficiency is improved, and the labor cost is saved; the prepreg adsorption transfer tool can be adjusted, so that the prepreg blanks in more shapes can be quickly and stably transferred, and the blank transfer efficiency and the workpiece manufacturing efficiency are improved.
Drawings
FIG. 1 is a schematic view of a prepreg adsorption transfer tool
FIG. 2(a) is a schematic view of an adsorption apparatus
FIG. 2(b) is a side view of the adsorption apparatus
FIG. 3 is a schematic view of automatic laying of impregnated blanks
FIG. 4 is a schematic diagram of the adsorption of prepreg blank adsorption transfer tooling
FIG. 5 is a schematic diagram of a prepreg adsorption transfer tool blank transfer
FIG. 6 is a schematic view of prepreg thermal membrane formation
FIG. 7 is a schematic view of the encapsulation and curing of a composite part
In the figure: 1-a metal frame; 2-an adsorption device; 3-vacuum meter; 4-a vacuum system; 5-hoisting the device; 6, fixing a frame; 7-adjusting the screw; 8-adsorption floppy disk; 9-vacuum connecting pipe; 10-prepreg stock; 11-a non-porous barrier film; 12-flat plate tooling; 13-automatic tape laying machine; 14-a crane; 15-thermal diaphragm tooling; 16-a rubber diaphragm; 17-infrared heating lamps; 18-a thermal diaphragm frame; 19-thermal diaphragm bottom stage; 20-workpiece forming tooling; 21-airfelt; 22-vacuum bag; 23-sealing rubber strip
Detailed Description
The automatic manufacturing process of the composite material C-shaped beam structural part shown in the figures 1 to 7 is a technical scheme of the invention. The process scheme comprises the following steps:
1) lay-up of composite prepreg blanks
The prepreg blank 10 to be transferred of the composite material is laid on a flat tool 12, a layer of non-porous isolating film 11 is laid on the flat tool 12, the size of the non-porous isolating film 11 is larger than that of the prepreg blank 10, and the prepreg blank 10 is laid on the non-porous isolating film 11 through an automatic laying machine 13.
2) Composite prepreg blank adsorption
The prepreg adsorption transfer tool is moved to the position above a prepreg blank 10 by a crane 14 through a hoisting device 5, the prepreg adsorption transfer tool is arranged according to the shape of the blank 10, an adsorption floppy disk 8 is slowly placed to contact the prepreg blank 10, a vacuum system 4 is started, the numerical value change of a vacuum table 3 on each adsorption floppy disk 8 is observed, and when all vacuum numerical values are lower than-0.06 Mpa, the prepreg blank 10 is proved to be stably fixed, and the prepreg blank 10 can be transferred.
The position and the height of the adjusting screw 7 are adjusted through the long circular groove on the fixing frame 6 of the adsorption device 2, and the adsorption effect of the adsorption floppy disk 8 and the prepreg blank 10 is ensured.
3) Tooling for adsorbing and transferring prepreg blank of composite material to thermal diaphragm
The prepreg blank adsorption transfer tool is moved to a thermal diaphragm tool 15 by a crane 14, positioning is carried out according to the positioning characteristics of the prepreg blank 10 and the thermal diaphragm tool 15, and the prepreg blank adsorption transfer tool position is continuously adjusted by adjusting the crane 14, so that accurate positioning of the prepreg blank 10 adsorbed by the prepreg blank adsorption transfer tool is realized. And (4) closing the vacuum system 4, and removing the prepreg blank adsorption transfer tool when the reading of the vacuum meter is changed to be 0, so as to finish the transfer work of the prepreg blank 10.
The thermal diaphragm tool 15 and the prepreg blank 10 are subjected to thermal diaphragm forming on a thermal diaphragm bottom platform 19, the thermal diaphragm frame 18 is moved to enable the rubber diaphragm 16 to cover the prepreg blank 10 and the thermal diaphragm tool 15, the rubber diaphragm 16 applies pressure to the prepreg blank 10 through vacuumizing, and the prepreg blank 10 is heated through the infrared heating lamp 17 to be preformed.
4) Composite prepreg blank transferring and forming tool
Referring to the operation steps of step 2) and step 3), transferring the prepreg blank 10 to a workpiece forming tool 20; after the transfer is finished, the nonporous isolating film 11 on the back of the blank is carefully removed, the nonporous isolating film 11, the air-permeable felt 21 and the vacuum bag 22 are paved on the prepreg blank 10, the sealing rubber strip 23 is used for bonding and packaging the vacuum bag of the part, the part is transferred to an autoclave for forming and curing, and the automatic manufacture of the C-shaped beam structural part made of the composite material is finished.
Claims (2)
1. The automatic manufacturing tool for the composite stringer and beam structural parts is characterized by being a prepreg blank adsorption transfer tool and comprising a metal frame (1), an adsorption device (2), a vacuum gauge (3), a vacuum system (4) and a hoisting device (5);
the metal frame (1) is an integral metal frame beam structure or a deformable frame structure; the adsorption device (2) comprises a fixed frame (6), an adjusting screw rod (7), an adsorption soft disk (8) and a vacuum connecting pipe (9);
the adjusting screw (7) is of a hollow screw structure, two ends of the adjusting screw are respectively communicated with the adsorption soft disc (8) and the vacuum connecting pipe (9), and the outer surface of the adjusting screw (7) is provided with threads and a nut matched with the threads; the fixing frame (6) is of an L-shaped plate structure, the bottom of the fixing frame is provided with a long circular hole, the adjusting screw (7) penetrates through the long circular hole and is fixed on the fixing frame (6) through a nut, and the top end of the fixing frame (6) is connected with the bottom end of the metal frame (1); the vacuum connecting pipe (9) is connected with the vacuum system (4), and a vacuum meter (3) is arranged on the vacuum connecting pipe (9) and used for reading a vacuum value;
the installation number of the adsorption devices (2) is designed according to the condition of the prepreg blank; the adsorption floppy disk (8) is made of soft plastic, and the shape and the size of the adsorption floppy disk are designed according to the state of the prepreg blank; the hoisting device (5) is arranged at the top of the metal frame (1) and used for hoisting.
2. The automated manufacturing process of composite stringer, beam structural members of claim 1, comprising the steps of:
1) lay-up of prepreg blanks of composite material
The prepreg blank (10) to be transferred of the composite material is laid on a flat tool (12), a layer of nonporous isolating film (11) is laid on the flat tool (12), the nonporous isolating film (11) is larger than the prepreg blank (10), and the prepreg blank (10) is laid on the nonporous isolating film (11) through a manual or automatic tape laying machine (13);
2) composite prepreg blank adsorption
Moving a prepreg adsorption transfer tool to the position above a prepreg blank (10) by using a crane (14) or other devices through a hoisting device (5), placing the prepreg adsorption transfer tool according to the shape of the blank (10), lowering the prepreg adsorption transfer tool to enable an adsorption flexible disk (8) to contact the prepreg blank (10), starting a vacuum system (4), observing the numerical value change of a vacuum meter (3) on each adsorption flexible disk (8), judging whether the prepreg blank (10) is stably fixed or not according to the numerical value change, and further transferring the prepreg blank (10);
the adjusting screw (7) on the adsorption device (2) can adjust the position and the height through the long round hole on the fixing frame (6) according to actual conditions, so that the adsorption effect of the adsorption soft disc (8) and the prepreg blank (10) is ensured;
3) tooling for adsorbing and transferring prepreg blank of composite material to thermal diaphragm
Moving a prepreg blank adsorption transfer tool to a thermal diaphragm tool (15) by using a crane (14) or other power devices, positioning the prepreg blank adsorption transfer tool with the thermal diaphragm tool (15) by an operator according to the positioning characteristics of the prepreg blank (10), and adjusting the position of the prepreg blank adsorption transfer tool by adjusting the crane (14) to accurately position the prepreg blank adsorption transfer tool (10); closing the vacuum system (4), and removing the prepreg blank adsorption transfer tool when the reading of the vacuum meter is changed to be 0, so as to finish the transfer work of the prepreg blank (10);
carrying out thermal diaphragm forming on a thermal diaphragm bottom platform (19) by a thermal diaphragm tool (15) and the prepreg blank (10), enabling a rubber diaphragm (16) to cover the prepreg blank (10) and the thermal diaphragm tool (15) by moving a thermal diaphragm frame (18), vacuumizing to enable the rubber diaphragm (16) to apply pressure to the prepreg blank (10), and heating by an infrared heating lamp (17) to enable the prepreg blank (10) to be preformed;
4) composite prepreg blank transferring and forming tool
Transferring the prepreg blank (10) to a workpiece forming tool (20) by using a prepreg blank adsorption transfer tool; and after the transfer is finished, removing the nonporous isolating film (11) on the back of the blank, simultaneously paving the nonporous isolating film (11), the air-permeable felt (21) and the vacuum bag (22) on the prepreg blank (10), bonding the packaging part vacuum bag (22) through a sealing adhesive tape (23), transferring the composite material prepreg blank to an autoclave for part forming and curing, and finishing the automatic manufacture of the composite material stringer and beam structural part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210616708.4A CN114986936A (en) | 2022-06-01 | 2022-06-01 | Automatic manufacturing tool and process for composite stringer and beam structural part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210616708.4A CN114986936A (en) | 2022-06-01 | 2022-06-01 | Automatic manufacturing tool and process for composite stringer and beam structural part |
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| Publication Number | Publication Date |
|---|---|
| CN114986936A true CN114986936A (en) | 2022-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210616708.4A Pending CN114986936A (en) | 2022-06-01 | 2022-06-01 | Automatic manufacturing tool and process for composite stringer and beam structural part |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080277049A1 (en) * | 2005-09-26 | 2008-11-13 | Roebroeks Geerardus Hubertus J | Method and Device for Adhering Components to a Composite Molding |
| CN110757830A (en) * | 2018-07-26 | 2020-02-07 | 中国商用飞机有限责任公司 | Thermal diaphragm forming method and preparation system of hat-shaped stringer |
| CN112590241A (en) * | 2020-11-17 | 2021-04-02 | 海鹰空天材料研究院(苏州)有限责任公司 | Thermal diaphragm preforming method suitable for Z-shaped structure composite material |
| CN216329438U (en) * | 2021-11-30 | 2022-04-19 | 上海飞机制造有限公司 | Prepreg plate transports and forming device |
-
2022
- 2022-06-01 CN CN202210616708.4A patent/CN114986936A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080277049A1 (en) * | 2005-09-26 | 2008-11-13 | Roebroeks Geerardus Hubertus J | Method and Device for Adhering Components to a Composite Molding |
| CN110757830A (en) * | 2018-07-26 | 2020-02-07 | 中国商用飞机有限责任公司 | Thermal diaphragm forming method and preparation system of hat-shaped stringer |
| CN112590241A (en) * | 2020-11-17 | 2021-04-02 | 海鹰空天材料研究院(苏州)有限责任公司 | Thermal diaphragm preforming method suitable for Z-shaped structure composite material |
| CN216329438U (en) * | 2021-11-30 | 2022-04-19 | 上海飞机制造有限公司 | Prepreg plate transports and forming device |
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