CN116901487A - Forming tool and forming method for large-size h-shaped composite material beam thermal diaphragm - Google Patents

Forming tool and forming method for large-size h-shaped composite material beam thermal diaphragm Download PDF

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Publication number
CN116901487A
CN116901487A CN202310938838.4A CN202310938838A CN116901487A CN 116901487 A CN116901487 A CN 116901487A CN 202310938838 A CN202310938838 A CN 202310938838A CN 116901487 A CN116901487 A CN 116901487A
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Prior art keywords
shaped
die
paving
layer
laying
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CN202310938838.4A
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Chinese (zh)
Inventor
李文龙
梁禄忠
马秘辉
王昭军
齐芳
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Shenyang Aircraft Industry Group Co Ltd
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Shenyang Aircraft Industry Group Co Ltd
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Priority to CN202310938838.4A priority Critical patent/CN116901487A/en
Publication of CN116901487A publication Critical patent/CN116901487A/en
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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
    • B29C70/38—Automated lay-up, e.g. using robots, laying filaments according to predetermined patterns
    • 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
    • B29C33/301—Modular mould systems [MMS], i.e. moulds built up by stacking mould elements, e.g. plates, blocks, rods
    • 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
    • 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
    • B29L2031/3085—Wings

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Robotics (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

The invention discloses a large-size h-shaped composite material beam thermal diaphragm forming tool and a forming method, and belongs to the technical field of composite material design and manufacturing. The invention adopts a thermal diaphragm forming process to form and decompose an h-shaped composite material beam into 1L-shaped prefabricated body, 1C-shaped prefabricated body and 1 flat prefabricated body, firstly, paving layers according to the design, forming or manually paving the layers into a flat paving layer group through paving strips, then, forming 1L-shaped prefabricated body, 1C-shaped prefabricated body and 1 flat prefabricated body through the thermal diaphragm forming process, finally, combining 3 prefabricated bodies and 0-degree fiber filling paving layers together, and then, carrying out a thermal diaphragm forming process to obtain the h-shaped prefabricated body. The invention simplifies the laying operation, improves the production efficiency, avoids the laying bridging of the R angle area, and ensures the surface quality and the laying position precision of the h-shaped composite material beam.

Description

Forming tool and forming method for large-size h-shaped composite material beam thermal diaphragm
Technical Field
The invention belongs to the technical field of composite material design and manufacture, relates to a large-size h-shaped composite material beam thermal diaphragm forming tool and a forming process, and particularly relates to a h-shaped composite material beam thermal diaphragm forming tool, and the appearance and the forming quality of parts are guaranteed.
Background
The integrated forming technology of the large-size composite material part becomes a key technology in the design and manufacture integration of the composite material, the number of parts and fasteners can be reduced, the purpose of reducing the weight of the structure is achieved, and meanwhile, the production cost is reduced. The material design and the structural design of the composite material, the material molding and the component molding are completed at the same time and cannot be separated, and the design and manufacturing integration characteristics of the integral molding structure of the composite material are fully embodied.
The large-size h-shaped composite material beam is mainly applied to a large-size wing wallboard and is used for improving the rigidity and strength of the wing wallboard, and the integral requirement of an aircraft structure is guaranteed, so that higher requirements are provided for the h-shaped composite material beam. The h-shaped composite material beam has small cross section size, large slenderness ratio and high requirements on molded surface and dimensional accuracy, and is manufactured by adopting a manual laying/autoclave molding method, and a solid male die is generally adopted to be matched with a soft die. For the h-shaped composite material beam with high requirements on the molded surface and the dimensional accuracy, as the R angle of the h-shaped composite material beam is smaller, bridging is easy to occur in the laying process, so that the problem that the core mold of the h-shaped composite material Liang Shixin is not matched with the soft mold in place is more outstanding, the internal quality of a part is influenced, meanwhile, the problem of over-thickness is also caused, and the preformed quality of the h-shaped composite material beam is a key for influencing the forming quality of the h-shaped composite material beam.
Disclosure of Invention
The invention aims to provide a large-size h-shaped composite material beam hot diaphragm forming tool and a forming process, which solve the problems of difficult forming of the h-shaped composite material beam, height control of the beam, R angle defect and appearance quality, improve the overall strength and rigidity of the h-shaped composite material beam, fully embody the superiority of the composite material and improve the production efficiency of part manufacture. The manufacturing method has been applied to large composite material parts of a certain type, and has achieved good design and use effects.
The h-shaped beam of the composite material consists of a C-shaped layer 1, a Z-shaped layer 2, a flat plate-shaped layer 3 and a 0-degree fiber filling layer 4.
The invention is realized by the following technical scheme:
the method comprises the steps of adopting a thermal diaphragm forming process to form and decompose an h-type composite material beam into 1L-type prefabricated body, 1C-type prefabricated body and 1 flat plate prefabricated body, firstly paving layers according to the design, forming or manually paving the layers into a flat plate paving layer group through paving strips, then forming the 1L-type prefabricated body, the 1C-type prefabricated body and the 1 flat plate prefabricated body through the thermal diaphragm forming process, finally combining the 3 prefabricated bodies with the 0-degree fiber filling paving layers, and then carrying out the thermal diaphragm forming process once to obtain the h-type prefabricated body. The h-shaped composite beam can be manufactured by adopting an autoclave forming process.
The utility model provides a hot diaphragm shaping frock of jumbo size h type combined material roof beam, includes that the layer is overlapped mould 5, locating pin 6, "dull and stereotyped" layer is overlapped mould 7, "0 degree fibre is filled" layer is overlapped mould apron 8, "0 degree fibre is filled" layer is overlapped mould 9, C type hot diaphragm moulded die 10, L type hot diaphragm moulded die 11, L type apron 12 and L type apron moulded die 13.
The C-shaped paving layer 1 and the Z-shaped paving layer 2 are unfolded by taking the web surface as a reference, and are designed into a paving mold 5 similar to a flat plate structure, 100mm allowance is reserved in the length direction and the width direction respectively for packaging, and a positioning pin 6 is designed outside the allowance in the length direction.
The "flat" layup former 7 is designed with the die face of the "flat" layup 3.
The 0-degree fiber filling type laying mold cover plate 8 and the 0-degree fiber filling type laying mold 9 form a double-sided hard mold structure, and are used for obtaining the 0-degree fiber filling type laying, so that the surface size can be effectively ensured.
The C-shaped thermal diaphragm forming die 10 is designed according to the die attaching surface of the C-shaped layering layer 1, and the positioning pin 6 is designed outside the allowance in the length direction.
The L-shaped thermal diaphragm forming die 11 is designed according to the die attaching surface of the Z-shaped layer 2, a locating pin 6 is designed outside the allowance in the length direction, and the die attaching surface of the Z-shaped layer 2 is unfolded to be a plane away from one side of the 0-degree fiber filling layer 4, so that the allowance of 20mm-30mm is reserved.
The L-shaped cover plate forming die 13 is designed according to the die attaching surface of the Z-shaped layering layer 2 and is used for manufacturing the L-shaped cover plate 12, and the positioning pin 6 is designed outside the length direction allowance.
The positioning pins 6 and the positions of the laying mold 5, the 'flat plate' laying mold 7, the C-shaped thermal diaphragm forming mold 10, the L-shaped thermal diaphragm forming mold 11, the L-shaped cover plate 12 and the L-shaped cover plate forming mold 13 are the same.
A method for forming by adopting the h-shaped composite material beam hot diaphragm forming tool comprises the following steps:
1) Unfolding the H-shaped composite material beam 'C' paving layer 1 and the 'Z' paving layer 2, and manufacturing holes with the same size and the same position as the positioning pins 6 on the paving layer cutting pieces; unfolding the 'flat' paving layer 3, wherein the contour of the 'flat' paving layer is consistent with that of the 'flat' paving layer paving mould 7;
2) Spreading the unfolded C-shaped paving layer 1 and Z-shaped paving layer 2 onto a spreading die 5, positioning the paving layers through a positioning pin 6, spreading the flat plate-shaped paving layer 3 onto a flat plate-shaped paving layer 7, and vacuumizing and compacting at normal temperature;
3) The 0-degree fiber filling layer 4 is paved on the 0-degree fiber filling layer paving mould 9, the 0-degree fiber filling layer paving mould cover plate 8 is covered, and vacuum pumping compaction is carried out at normal temperature;
4) Positioning the compacted C-shaped paving layer 1 onto a C-shaped thermal diaphragm forming die 10 by taking a die attaching surface and a positioning pin 6 as references, positioning the compacted Z-shaped paving layer 2 onto an L-shaped thermal diaphragm forming die 11, and bending into a prefabricated body with a corresponding shape through a thermal diaphragm forming process;
5) Manufacturing an L-shaped cover plate 12 made of composite materials on an L-shaped cover plate forming die 13, trimming the web surface of the cured L-shaped cover plate 12 according to the Z-shaped layering 2, and chamfering the edges;
6) The method comprises the steps of combining a preformed C-shaped 'C' -shaped paving 1 preform, an L-shaped 'Z' -shaped paving 2 preform, a 'flat-plate' -shaped paving 3 preform and a '0-degree fiber filling' -shaped paving 4 preform into a whole through positioning pins, fixing the integrated prefabricated parts on a C-shaped thermal diaphragm forming die 10, attaching the 'flat-plate' -shaped paving 3 preform to a 'flat-plate' -shaped paving 7, and attaching an L-shaped cover plate 12 to the L-shaped 'Z' -shaped paving 2 preform;
7) Heating and pressurizing on a thermal diaphragm device to obtain an h-shaped preform;
8) After the whole package, curing in an autoclave according to prepreg curing parameters;
9) And (5) discharging the steel plate from the tank, and trimming the shape to manufacture the h-shaped composite material beam.
The invention has the beneficial effects that: the invention adopts a thermal diaphragm forming process to form and decompose an h-shaped composite material beam into 1L-shaped prefabricated body, 1C-shaped prefabricated body and 1 flat prefabricated body, firstly, paving layers according to the design, forming or manually paving the layers into a flat paving layer group through paving strips, then, forming 1L-shaped prefabricated body, 1C-shaped prefabricated body and 1 flat prefabricated body through the thermal diaphragm forming process, finally, combining 3 prefabricated bodies and 0-degree fiber filling paving layers together, and then, carrying out a thermal diaphragm forming process to obtain the h-shaped prefabricated body. The invention simplifies the laying operation, improves the production efficiency, avoids the laying bridging of the R angle area, and ensures the surface quality and the laying position precision of the h-shaped composite material beam.
Drawings
FIG. 1 is a diagram of an h-type composite beam structure.
FIG. 2 is a schematic diagram of a "C" lay-up and "Z" lay-up die.
FIG. 3 is a schematic view of a "flat" lay-up die.
Fig. 4 is a schematic illustration of a "0 ° fiber filled" lay-up die.
FIG. 5 is a schematic view of a C-type thermal diaphragm forming die.
FIG. 6 is a schematic view of an L-shaped thermal diaphragm forming die.
Fig. 7 is a schematic view of an L-shaped cover plate forming die.
Fig. 8 is a schematic diagram of thermal membrane molding.
FIG. 9 is a schematic illustration of h-type composite beam preform formation.
In the figure: 1"C" lay-up; 2"Z" lay-up; 3 "flat" layering; 4"0 deg. fiber-filled" lay-up; 5, paving a die; 6, positioning pins; 7, paving a flat plate and paving a mould; 8"0 deg. fiber-filled" lay-up mold cover plate; 9"0 deg. fiber-filled" lay-up die; 10C type thermal diaphragm forming die; 11L-shaped thermal diaphragm forming die; a 12L-shaped cover plate; 13L-shaped cover plate forming die.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, a detailed description of specific embodiments of the present invention will be given below by taking a radial annular groove grain structure as an example with reference to the accompanying drawings.
The size of a certain h-shaped composite material beam is 5200mm multiplied by 300mm multiplied by 6mm (maximum thickness), and the h-shaped composite material beam is assembled with a composite material wallboard, so that high requirements are set for the profile and the thickness of the h-shaped composite material beam. Thus, the method is adopted for manufacturing.
The method comprises the steps of adopting a thermal diaphragm forming process to form and decompose an h-type composite material beam into 1L-type prefabricated body, 1C-type prefabricated body and 1 flat plate prefabricated body, firstly paving layers according to the design, forming or manually paving the layers into a flat plate paving layer group through paving strips, then forming the 1L-type prefabricated body, the 1C-type prefabricated body and the 1 flat plate prefabricated body through the thermal diaphragm forming process, finally combining the 3 prefabricated bodies with the 0-degree fiber filling paving layers, and then carrying out the thermal diaphragm forming process once to obtain the h-type prefabricated body. The h-shaped composite beam can be manufactured by adopting an autoclave forming process.
The utility model provides a hot diaphragm shaping frock of jumbo size h type combined material roof beam, includes that the layer is overlapped mould 5, locating pin 6, "dull and stereotyped" layer is overlapped mould 7, "0 degree fibre is filled" layer is overlapped mould apron 8, "0 degree fibre is filled" layer is overlapped mould 9, C type hot diaphragm moulded die 10, L type hot diaphragm moulded die 11, L type apron 12 and L type apron moulded die 13.
The C-shaped paving layer 1 and the Z-shaped paving layer 2 are unfolded by taking the web surface as a reference, and are designed into a paving mold 5 similar to a flat plate structure, 100mm allowance is reserved in the length direction and the width direction respectively for packaging, and a positioning pin 6 is designed outside the allowance in the length direction.
The "flat" layup former 7 is designed with the die face of the "flat" layup 3.
The 0-degree fiber filling type laying mold cover plate 8 and the 0-degree fiber filling type laying mold 9 form a double-sided hard mold structure, and are used for obtaining the 0-degree fiber filling type laying, so that the surface size can be effectively ensured.
The C-shaped thermal diaphragm forming die 10 is designed according to the die attaching surface of the C-shaped layering layer 1, and the positioning pin 6 is designed outside the allowance in the length direction.
The L-shaped thermal diaphragm forming die 11 is designed according to the die attaching surface of the Z-shaped layer 2, a locating pin 6 is designed outside the allowance in the length direction, and the die attaching surface of the Z-shaped layer 2 is unfolded to be a plane away from one side of the 0-degree fiber filling layer 4, so that the allowance of 20mm-30mm is reserved.
The L-shaped cover plate forming die 13 is designed according to the die attaching surface of the Z-shaped layering layer 2 and is used for manufacturing the L-shaped cover plate 12, and the positioning pin 6 is designed outside the length direction allowance.
The positioning pins 6 designed by the laying mould 5, the 'flat plate' laying mould 7, the C-shaped thermal diaphragm forming mould 10, the L-shaped thermal diaphragm forming mould 11, the L-shaped cover plate 12 and the L-shaped cover plate forming mould 13 are identical in position.
A method for forming by adopting the h-shaped composite material beam hot diaphragm forming tool comprises the following steps:
1) Spreading the C-shaped layer 1 and the Z-shaped layer 2 into corresponding layers by taking the web surface as a reference, adding a margin of 30mm on the periphery of the layers, spreading the plate-shaped layer 3 with the same size and position as the positioning pin 6 on the layer cutting piece, and keeping the outline consistent with the plate-shaped layer spreading die 7;
2) Spreading the unfolded C-shaped paving layer 1 and Z-shaped paving layer 2 onto a spreading die 5, positioning the paving layers through a positioning pin 6, spreading the flat plate-shaped paving layer 3 onto a flat plate-shaped paving layer 7, and vacuumizing and compacting at normal temperature;
3) The 0-degree fiber filling layer 4 is paved on the 0-degree fiber filling layer paving mould 9, the 0-degree fiber filling layer paving mould cover plate 8 is covered, and vacuum pumping compaction is carried out at normal temperature;
4) Positioning the compacted C-shaped paving layer 1 onto a C-shaped thermal diaphragm forming die 10 by taking a die attaching surface and a positioning pin 6 as references, positioning the compacted Z-shaped paving layer 2 onto an L-shaped thermal diaphragm forming die 11, and bending into a prefabricated body with a corresponding shape through a thermal diaphragm forming process;
5) Manufacturing an L-shaped cover plate 12 made of composite materials on an L-shaped cover plate forming die 13, trimming the web surface of the cured L-shaped cover plate 12 according to the Z-shaped layering 2, and chamfering the edges;
6) The method comprises the steps of combining a preformed C-shaped 'C' -shaped paving 1 prefabricated body, an L-shaped 'Z' -shaped paving 2 prefabricated body, a 'flat plate' -shaped paving 3 prefabricated body and a '0-degree fiber filling' paving 4 prefabricated body into a whole through a locating pin 6, fixing the integrated body on a C-shaped thermal diaphragm forming die 10, enabling a 'flat plate' -shaped paving 7 to be attached to the 'flat plate' -shaped paving 3 prefabricated body, and enabling an L-shaped cover plate 12 to be attached to the L-shaped 'Z' -shaped paving 2 prefabricated body;
7) Heating and pressurizing on a thermal diaphragm device to obtain an h-shaped preform;
8) After the whole package, curing in an autoclave according to prepreg curing parameters;
9) And (5) carrying out appearance trimming after curing to manufacture the h-shaped composite material beam.

Claims (6)

1. The large-size h-shaped composite material beam thermal diaphragm forming tool is characterized by comprising a laying die (5), a locating pin (6), a flat plate laying die (7), a 0-degree fiber filling laying die cover plate (8), a 0-degree fiber filling laying die (9), a C-shaped thermal diaphragm forming die (10), an L-shaped thermal diaphragm forming die (11), an L-shaped cover plate (12) and an L-shaped cover plate forming die (13);
the composite h-shaped beam consists of a C-shaped layer, a Z-shaped layer, a flat plate layer and a 0-degree fiber filling layer;
the C-shaped layering and the Z-shaped layering are unfolded by taking the web surface as a reference, and are designed into a layering die (5) with a flat plate structure, and the length and the width directions of the layering die respectively leave 100mm allowance for packaging;
the 'flat' laying and laying mold (7) is designed by the surface of the 'flat' laying and laying mold;
the cover plate (8) of the 0-degree fiber filling type paving mould and the 0-degree fiber filling type paving mould (9) form a double-sided hard mould structure, and the double-sided hard mould structure is used for obtaining the 0-degree fiber filling type paving and ensuring the profile size;
the C-shaped thermal diaphragm forming die (10) is designed according to a C-shaped layering die surface;
the L-shaped thermal diaphragm forming die (11) is designed according to a Z-shaped layering die surface, the die surface of the Z-shaped layering is unfolded to form a plane far away from one side of the 0-degree fiber filling layering, and the allowance of 20mm-30mm is reserved;
the L-shaped cover plate forming die (13) is designed according to a Z-shaped layering die surface and is used for manufacturing the L-shaped cover plate (12).
2. The large-size h-shaped composite beam hot diaphragm forming tool according to claim 1, wherein the positioning pin (6) is designed outside the allowance of the length direction of the laying die (5).
3. The large-size h-shaped composite beam thermal diaphragm forming tool according to claim 1 or 2, wherein the positioning pin (6) is designed outside the length direction allowance of the C-shaped thermal diaphragm forming die (10).
4. The large-size h-shaped composite material beam hot diaphragm forming tool according to claim 1 or 2, wherein a locating pin (6) is designed outside the length direction allowance of the L-shaped hot diaphragm forming die (11); and a locating pin (6) is arranged outside the allowance of the length direction of the L-shaped cover plate forming die (13).
5. The large-size h-shaped composite material beam thermal diaphragm forming tool according to claim 4 is characterized in that positioning pins (6) designed by a laying die (5), a flat plate laying die (7), a C-shaped thermal diaphragm forming die (10), an L-shaped thermal diaphragm forming die (11), an L-shaped cover plate (12) and an L-shaped cover plate forming die (13) are identical in position.
6. A method for forming a thermal diaphragm using the h-shaped composite beam forming tool according to any one of claims 1 to 5, comprising the steps of:
1) Spreading the C-shaped and Z-shaped layers of the h-shaped composite material beam, and manufacturing holes with the same size and position as the positioning pins (6) on the layer cutting pieces; spreading the 'flat' layer, wherein the contour of the 'flat' layer is consistent with that of a 'flat' layer spreading mould (7);
2) Spreading the unfolded C-shaped layer and Z-shaped layer onto a spreading mold (5), positioning the spreading by a positioning pin (6), spreading the flat-plate-shaped layer onto a flat-plate-shaped spreading mold (7), and vacuumizing and compacting at normal temperature;
3) The 0-degree fiber filling-up laying is laid on a 0-degree fiber filling-up laying mould (9), a 0-degree fiber filling-up laying mould cover plate (8) is covered, and vacuum pumping compaction is carried out at normal temperature;
4) Positioning the compacted C-shaped layer on a C-shaped thermal diaphragm forming die (10) by taking a die attaching surface and a positioning pin (6) as references, positioning the compacted Z-shaped layer on an L-shaped thermal diaphragm forming die (11), and bending the Z-shaped layer into a prefabricated body with a corresponding shape through a thermal diaphragm forming process;
5) Manufacturing an L-shaped cover plate (12) made of composite materials on an L-shaped cover plate forming die (13), trimming the cured L-shaped cover plate (12) according to a Z-shaped layering web surface, and chamfering the edge;
6) The method comprises the steps of combining a preformed C-shaped 'C' -shaped paving prefabricated body, an L-shaped 'Z' -shaped paving prefabricated body, a 'flat plate' -shaped paving prefabricated body and a '0-degree fiber filling' -shaped paving prefabricated body into a whole through positioning pins, fixing the integrated C-shaped paving prefabricated body on a C-shaped thermal diaphragm forming die (10), enabling a 'flat plate' -shaped paving and paving die (7) to be attached to the 'flat plate' -shaped paving prefabricated body, and enabling an L-shaped cover plate (12) to be attached to the L-shaped 'Z' -shaped paving prefabricated body;
7) Heating and pressurizing on a thermal diaphragm device to obtain an h-shaped preform;
8) After the whole package, curing in an autoclave according to prepreg curing parameters;
9) And (5) discharging the steel plate from the tank, and trimming the shape to manufacture the h-shaped composite material beam.
CN202310938838.4A 2023-07-28 2023-07-28 Forming tool and forming method for large-size h-shaped composite material beam thermal diaphragm Pending CN116901487A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310938838.4A CN116901487A (en) 2023-07-28 2023-07-28 Forming tool and forming method for large-size h-shaped composite material beam thermal diaphragm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310938838.4A CN116901487A (en) 2023-07-28 2023-07-28 Forming tool and forming method for large-size h-shaped composite material beam thermal diaphragm

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Publication Number Publication Date
CN116901487A true CN116901487A (en) 2023-10-20

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CN202310938838.4A Pending CN116901487A (en) 2023-07-28 2023-07-28 Forming tool and forming method for large-size h-shaped composite material beam thermal diaphragm

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