CN105346103A - Forming method of cavity type composite material part with lateral edge and convergence hole - Google Patents
Forming method of cavity type composite material part with lateral edge and convergence hole Download PDFInfo
- Publication number
- CN105346103A CN105346103A CN201510841116.2A CN201510841116A CN105346103A CN 105346103 A CN105346103 A CN 105346103A CN 201510841116 A CN201510841116 A CN 201510841116A CN 105346103 A CN105346103 A CN 105346103A
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- CN
- China
- Prior art keywords
- bed
- forming method
- incline
- composite material
- mouth
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
- B29C33/40—Plastics, e.g. foam or rubber
- B29C33/405—Elastomers, e.g. rubber
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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
-
- 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
- B29C70/44—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
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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
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Manufacturing & Machinery (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a forming method of a cavity type composite material part with a lateral edge and a convergence hole. The forming method comprises the following steps: laying a prepreg piece on the outer surface of a male die (1) to form a material layer; taking the pre-compacted material layer off from the male die (1), putting the material layer into a combined female die (4) in a way with the opening of the material layer directed upwards, sequentially putting a soft die (2) and a core die (3) into the cavity of the material layer; packaging the combined female die (4) and the material layer into a vacuum bag and further performing compacting; sending the combined female die (4) and the material layer into an autoclave to enable the material to be solidified for formation; after solidifying for formation is completed, opening the combined female die (4) and taking out the solidified and formed finished product of the part. Since a laying method characterized by the combination of the male die (1) and the female die (4) is adopted and the problem of unloading of the core die is solved by adopting the soft die, parts of same kind can be smoothly formed.
Description
Technical field
The present invention relates to a kind of forming method with incline and convergence shape of the mouth as one speaks chamber class composite material parts, particularly relate to a kind of forming method with acute angle incline and convergence shape of the mouth as one speaks chamber class composite material parts.
Background technology
The die cavity class composite material parts with incline and convergence mouth is the convergence of a kind of one end open, namely cross section is greater than open cross-section and at least one place of die cavity has the hood-shaped part of composite that incline, especially incline wedge angle are acute angles in die cavity.This type of composite material parts generally adopts autoclave molding method, and forming step mainly comprises prepreg laying, envelope and compacting, autoclave molding, the demoulding four steps.Usual prepreg laying step adopts former layup method or formpiston layup method.According to former layup method, namely prepreg laying is at former Reentrant Cavity inner surface, because in this type of part, the incline of die cavity becomes wedge angle, cause the manual laying difficulty of sharp corner, be difficult to obtain qualified profile after solidification of hot-press tank is shaping, and cause after curing molding cannot the demoulding due to the convergence of this type of part opening; According to formpiston layup method, namely prepreg laying is at formpiston outer surface, although solve laying difficult problem, can obtain qualified profile, and due to the convergence of this type of part opening, can run into equally after curing molding cannot the problem of the demoulding.
Summary of the invention
Cannot the problem of the demoulding for solve after the manual laying difficulty of the die cavity incline sharp corner with the die cavity class composite material parts of incline and convergence mouth that prior art exists, curing molding, the invention provides a kind of forming method with incline and convergence shape of the mouth as one speaks chamber class composite material parts.A kind of forming method with incline and convergence shape of the mouth as one speaks chamber class composite material parts of the present invention, is characterized in that, comprise the steps:
Step one, forms the bed of material prepreg laying at formpiston outer surface;
Step 2, takes off the described bed of material after pre-compacted from formpiston, described bed of material opening upwards is placed in combination former, puts into soft mode and core successively in the die cavity of the described bed of material;
Step 3, is encapsulated in also compacting in vacuum bag by described combination former and the bed of material;
Step 4, sends the vacuum bag that described combination former and the bed of material are housed into autoclave and makes bed of material curing molding;
Step 5, after curing molding completes, opens described combination former, and the bed of material taking out curing molding obtains fabricated part.
Between step one and step 2, also comprise and formpiston and the bed of material to be encapsulated in vacuum bag and precompression step, described pre-compacted refers to and adopts vacuum bag forvacuum, make vacuum bag compress described in the bed of material.
Compacting described in step 3 adopts vacuum bag to vacuumize, and makes the combination former described in vacuum bag compression and the bed of material.
The Reentrant Cavity corresponding to described fabricated part profile made by described combination former, and is divided into left half module and right half module at die cavity longitudinal cross-section size maximum.
The shape corresponding to fabricated part die cavity made by described formpiston.
Described soft mode profile makes the shape corresponding to fabricated part die cavity, and described soft mode die cavity makes the shape corresponding to described core profile.
Described soft mode is made up of silicon rubber or elastomeric material.
The present invention has following good effect compared to prior art, a kind of forming method with incline and convergence shape of the mouth as one speaks chamber class composite material parts of the present invention, owing to first using formpiston laying, solve the irregular problem of die cavity in this type of part die cavity sharp corner manual laying difficulty and the rear part of solidification, method that core fixes solves uncured parts transfer to the problem combining former rear profile facial disfigurement to adopt soft mode to add, then adopting the shaping method of combination former matched moulds to solve to restrain due to opening the part that causes cannot the problem of the demoulding, the method adopting soft mode to add core solves the problem of unloading core, adopt combination former curing molding to improve the surfaces externally and internally quality of part simultaneously.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, specific embodiments of the invention are described in further detail.
Fig. 1 is the schematic diagram with incline and convergence shape of the mouth as one speaks chamber class composite material parts of specific embodiments of the invention.
Fig. 2 is a kind of formpiston schematic diagram with the forming method of incline and convergence shape of the mouth as one speaks chamber class composite material parts of the present invention.
Fig. 3 is a kind of soft mode schematic diagram with the forming method of incline and convergence shape of the mouth as one speaks chamber class composite material parts of the present invention.
Fig. 4 is a kind of core schematic diagram with the forming method of incline and convergence shape of the mouth as one speaks chamber class composite material parts of the present invention.
Fig. 5 is a kind of perspective diagram with the combination former of the forming method of incline and convergence shape of the mouth as one speaks chamber class composite material parts of the present invention.
In figure, 1. formpiston, 2. soft mode, 3. core, 4. combine former.
Detailed description of the invention
Fig. 1 is the schematic diagram with incline and convergence shape of the mouth as one speaks chamber class composite material parts of specific embodiment, this part is that in the convergence of a kind of one end open, i.e. die cavity, cross section is greater than open cross-section, die cavity cross section is streamlined, and one end incline wedge angle is the hood-shaped part of composite of acute angle.
A kind of forming method with incline and convergence shape of the mouth as one speaks chamber class composite material parts of the present invention, is characterized in that, comprise the steps:
Step one, forms the bed of material prepreg laying at formpiston 1 outer surface;
Step 2, takes off the described bed of material after pre-compacted from formpiston 1, described bed of material opening upwards is placed in combination former 4, puts into soft mode 2 and core 3 successively in the die cavity of the described bed of material;
Step 3, is encapsulated in also compacting in vacuum bag by described combination former 4 and the bed of material;
Step 4, sends the vacuum bag that described combination former 4 and the bed of material are housed into autoclave and makes bed of material curing molding;
Step 5, after curing molding completes, opens described combination former 4, and the bed of material taking out curing molding obtains fabricated part.
Between step one and step 2, also comprise and formpiston 1 and the bed of material to be encapsulated in vacuum bag and precompression step, described pre-compacted refers to and adopts vacuum bag forvacuum, make vacuum bag compress described in the bed of material.
Compacting described in step 3 adopts vacuum bag to vacuumize, and makes the combination former 4 described in vacuum bag compression and the bed of material.
Fig. 2 to Fig. 5 shows the mould that a kind of forming method with incline and convergence shape of the mouth as one speaks chamber class composite material parts of the present invention uses.
The Reentrant Cavity corresponding to described fabricated part profile made by described combination former 4, and is divided into left half module and right half module at die cavity longitudinal cross-section size maximum.
The shape corresponding to fabricated part die cavity made by described formpiston 1.
Described soft mode 2 profile makes the shape corresponding to fabricated part die cavity, and described soft mode 2 die cavity makes the shape corresponding to described core 3 profile.
Described soft mode 2 is made up of the soft material such as silicon rubber or rubber.
Claims (7)
1. there is a forming method for incline and convergence shape of the mouth as one speaks chamber class composite material parts, it is characterized in that, comprise the steps:
Step one, forms the bed of material prepreg laying at formpiston (1) outer surface;
Step 2, takes off the described bed of material after pre-compacted from formpiston (1), described bed of material opening upwards is placed in combination former (4), puts into soft mode (2) and core (3) successively in the die cavity of the described bed of material;
Step 3, is encapsulated in also compacting in vacuum bag by described combination former (4) and the bed of material;
Step 4, sends the vacuum bag that described combination former (4) and the bed of material are housed into autoclave and makes bed of material curing molding;
Step 5, after curing molding completes, opens described combination former (4), and the bed of material taking out curing molding obtains fabricated part.
2. a kind of forming method with incline and convergence shape of the mouth as one speaks chamber class composite material parts according to claim 1, it is characterized in that: between step one and step 2, also comprise and formpiston (1) and the bed of material being encapsulated in vacuum bag and precompression step, described pre-compacted refers to and adopts vacuum bag forvacuum, makes the bed of material described in vacuum bag compression.
3. a kind of forming method with incline and convergence shape of the mouth as one speaks chamber class composite material parts according to claim 1 and 2, it is characterized in that: the compacting described in step 3 adopts vacuum bag to vacuumize, and makes the combination former (4) described in vacuum bag compression and the bed of material.
4. a kind of forming method with incline and convergence shape of the mouth as one speaks chamber class composite material parts according to claim 3, it is characterized in that: the Reentrant Cavity corresponding to described fabricated part profile made by described combination former (4), and is divided into left half module and right half module at die cavity longitudinal cross-section size maximum.
5. a kind of forming method with incline and convergence shape of the mouth as one speaks chamber class composite material parts according to claim 4, is characterized in that: the shape corresponding to fabricated part die cavity made by described formpiston (1).
6. a kind of forming method with incline and convergence shape of the mouth as one speaks chamber class composite material parts according to claim 5, it is characterized in that: described soft mode (2) profile makes the shape corresponding to fabricated part die cavity, described soft mode (2) die cavity is made and the corresponding shape of described core (3) profile.
7. a kind of forming method with incline and convergence shape of the mouth as one speaks chamber class composite material parts according to claim 6, is characterized in that: described soft mode (2) is made up of silastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510841116.2A CN105346103A (en) | 2015-11-28 | 2015-11-28 | Forming method of cavity type composite material part with lateral edge and convergence hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510841116.2A CN105346103A (en) | 2015-11-28 | 2015-11-28 | Forming method of cavity type composite material part with lateral edge and convergence hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105346103A true CN105346103A (en) | 2016-02-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510841116.2A Pending CN105346103A (en) | 2015-11-28 | 2015-11-28 | Forming method of cavity type composite material part with lateral edge and convergence hole |
Country Status (1)
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|---|---|
| CN (1) | CN105346103A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105984154A (en) * | 2016-06-14 | 2016-10-05 | 沈阳飞机工业（集团）有限公司 | Forming method of U-shaped beam type composite part |
| CN106217907A (en) * | 2016-09-08 | 2016-12-14 | 中国商用飞机有限责任公司 | Method for closing in type composite material parts global formation |
| CN109631773A (en) * | 2018-11-22 | 2019-04-16 | 成都飞机工业（集团）有限责任公司 | A kind of pneumatic face Surface inspection method of composite material parts based on shaping mould |
| CN110588020A (en) * | 2019-08-22 | 2019-12-20 | 成都飞机工业（集团）有限责任公司 | Automatic tape laying method for hexagonal hole of composite material |
| CN110877463A (en) * | 2018-09-05 | 2020-03-13 | 中航贵州飞机有限责任公司 | Low-cost forming method of V-shaped composite material 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 |
| CN114734655A (en) * | 2021-01-07 | 2022-07-12 | 上海飞机制造有限公司 | Manufacturing method for manufacturing C-shaped part by using composite material |
-
2015
- 2015-11-28 CN CN201510841116.2A patent/CN105346103A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105984154A (en) * | 2016-06-14 | 2016-10-05 | 沈阳飞机工业（集团）有限公司 | Forming method of U-shaped beam type composite part |
| CN106217907A (en) * | 2016-09-08 | 2016-12-14 | 中国商用飞机有限责任公司 | Method for closing in type composite material parts global formation |
| CN110877463A (en) * | 2018-09-05 | 2020-03-13 | 中航贵州飞机有限责任公司 | Low-cost forming method of V-shaped composite material part |
| CN109631773A (en) * | 2018-11-22 | 2019-04-16 | 成都飞机工业（集团）有限责任公司 | A kind of pneumatic face Surface inspection method of composite material parts based on shaping mould |
| CN110588020A (en) * | 2019-08-22 | 2019-12-20 | 成都飞机工业（集团）有限责任公司 | Automatic tape laying method for hexagonal hole of composite material |
| 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 |
| CN114734655A (en) * | 2021-01-07 | 2022-07-12 | 上海飞机制造有限公司 | Manufacturing method for manufacturing C-shaped part by using composite material |
| CN114734655B (en) * | 2021-01-07 | 2024-01-30 | 上海飞机制造有限公司 | Method for manufacturing C-shaped part by using composite material |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160224 |
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| WD01 | Invention patent application deemed withdrawn after publication |