CN103802329B - The tubular component integral forming method of big L/D ratio composite - Google Patents
The tubular component integral forming method of big L/D ratio composite Download PDFInfo
- Publication number
- CN103802329B CN103802329B CN201210457507.0A CN201210457507A CN103802329B CN 103802329 B CN103802329 B CN 103802329B CN 201210457507 A CN201210457507 A CN 201210457507A CN 103802329 B CN103802329 B CN 103802329B
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- China
- Prior art keywords
- former
- core
- overall
- molding
- manufacture
- 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
-
- 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
- B29L2023/00—Tubular articles
- B29L2023/22—Tubes or pipes, i.e. rigid
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The invention belongs to Composites Molding Techniques, are related to a kind of integral forming method of the tubular component of big L/D ratio composite.This method combines overall former using core and carries out molding, comprises the following steps：The first step, core manufacture；Second step, former manufacture；3rd step, the overall laying on core；4th step, lays overall former outside laying；5th step, seals vacuum bag processed, curing molding；6th step, takes off former and core respectively.Former described in second step is fabricated to：The molding manufacture of former is completed on core, former is tubulose soft rubber material.The present invention is more convenient succinct compared to simple female mould forming, and meets the requirement of overall laying；Compared to traditional mandrel molding method, it is to avoid the problem of outer surface quality difference, it is ensured that the prescription of pipe-shaped parts outer surface, and surface of internal cavity quality is smooth, and size accurately, meets the development needs of certain type helicopter horizontal plane.
Description
Technical field
The invention belongs to Composites Molding Techniques, are related to a kind of global formation of the tubular component of big L/D ratio composite
Method.
Background technology
The manufacture of the tubular composite element of big L/D ratio composite, is generally used alone core frock or exclusive use
Female mould forming.The method of core is used alone, inner surface quality ensure that, but it cannot be guaranteed that the Forming Quality of outer surface；And
Female mould forming is used alone, the needs of overall laying on the one hand can not be met, on the other hand cannot be ensured its inwall quality and chi
Very little precision.For surfaces externally and internally has the overall laying tubular articles of better quality requirement, both the above method cannot all meet
Its molding needs.
The content of the invention
The purpose of the present invention is：
A kind of forming method of the quality and dimensional stability for ensureing pipe-shaped parts surfaces externally and internally is provided.
The technical scheme is that：
The tubular component integral forming method of big L/D ratio composite, combining overall former using core carries out molding, wraps
Include following steps：
The first step, core manufacture；
Second step, former manufacture；
3rd step, the overall laying on core；
4th step, lays overall former outside laying；
5th step, seals vacuum bag processed, curing molding；
6th step, takes off former and core respectively；
Former described in second step is fabricated to：The molding manufacture of former is completed on core, described former is that tubulose is soft
Matter elastomeric material.
Described core is metal core die.
It is an advantage of the invention that：
The present invention is more convenient succinct compared to simple female mould forming, and meets the requirement of overall laying；Compared to
Traditional mandrel molding method, it is to avoid the problem of outer surface quality difference, it is ensured that the prescription of pipe-shaped parts outer surface, and
Surface of internal cavity quality is smooth, and size accurately, meets the development needs of certain type helicopter horizontal plane.
Description of the drawings
Fig. 1 is certain type machine horizontal plane strut appearance schematic diagram.
Fig. 2 be embodiment in horizontal plane strut parts locally section laying schematic diagram, wherein P003, P004, P005,
P006, P015, P016, P017, P018 represent laying sequence number and ply stacking-sequence.
Specific embodiment
The present invention is described in further details with a specific embodiment below：
Certain type machine horizontal plane strut, is long 1.1m, internal diameter 63.5mm, external diameter 66.5mm composite material parts sketch it is as follows
Fig. 1, overall laying schematic diagram such as Fig. 2.The moulding process step of the part is as follows：
1. metal core die manufacture：Metal core die is manufactured according to part internal diameter size etc.；
2. overall rubber former manufacture：The molding manufacture of overall rubber former is completed on metal core die, soft rubber is cloudy
The internal diameter of mould is 63.5mm, ensure that laying outer surface uniformly can be compressed, surface quality and good stability of the dimension after molding；
3. the paving of part layering：In core frock, paving prepreg overlay on request,
4. overall former is laid：Overall rubber mantle is inserted on the outside of the laying completed, with isolating between former and laying
Film separates, to ensure the smooth demoulding of former；
5. envelope vacuum bag：Vacuum bag processed is sealed in part former external surface, and carries out pre-compacted；
6. curing molding：Part is put in autoclave carries out forming and hardening；
7. demoulding finishing：Soft former and core are taken off respectively, and carry out part polishing finishing.
Claims (1)
1. the tubular component integral forming method of big L/D ratio composite, comprises the following steps：
The first step, core manufacture；
Second step, former manufacture；
3rd step, the overall laying on core；
4th step, lays overall former outside laying；
5th step, seals vacuum bag processed, curing molding；
6th step, takes off former and core respectively；
It is characterized in that, the former described in second step is fabricated to：The molding manufacture of former is completed on core, described former is pipe
Shape soft rubber material；
Described core is metal core die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210457507.0A CN103802329B (en) | 2012-11-14 | 2012-11-14 | The tubular component integral forming method of big L/D ratio composite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210457507.0A CN103802329B (en) | 2012-11-14 | 2012-11-14 | The tubular component integral forming method of big L/D ratio composite |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103802329A CN103802329A (en) | 2014-05-21 |
| CN103802329B true CN103802329B (en) | 2017-04-05 |
Family
ID=50699938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210457507.0A Active CN103802329B (en) | 2012-11-14 | 2012-11-14 | The tubular component integral forming method of big L/D ratio composite |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103802329B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106891545A (en) * | 2015-12-17 | 2017-06-27 | 航天海鹰(镇江)特种材料有限公司 | Forming method of hollow tubular blade based on composite material |
| CN106182805B (en) * | 2016-09-09 | 2018-03-23 | 西安爱生技术集团公司 | A kind of manufacturing process of the isometrical tubular structure of carbon fibre composite |
| CN109795130B (en) * | 2019-03-10 | 2024-06-04 | 西安爱生技术集团公司 | Forming tool for equal-diameter tubular member made of carbon fiber composite material with large length-diameter ratio |
| CN114147996B (en) * | 2021-11-24 | 2024-01-09 | 航天特种材料及工艺技术研究所 | Composite material structure containing internal channel with large slenderness ratio and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101391488A (en) * | 2008-08-22 | 2009-03-25 | 成都飞机工业（集团）有限责任公司 | Curing formation method for non-flat plate composite product and shaping mould |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3923416A1 (en) * | 1989-07-12 | 1991-01-24 | Mecron Med Prod Gmbh | METHOD FOR PRODUCING A BODY HAVING A HOLLOW PROFILE |
| CN202137957U (en) * | 2011-07-25 | 2012-02-08 | 浙江联洋复合材料有限公司 | RTM (resin transfer molding) soft mould |
| CN102490372B (en) * | 2011-12-12 | 2014-08-13 | 中国科学院宁波材料技术与工程研究所 | Method for forming carbon fiber pipe and die thereof |
-
2012
- 2012-11-14 CN CN201210457507.0A patent/CN103802329B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101391488A (en) * | 2008-08-22 | 2009-03-25 | 成都飞机工业（集团）有限责任公司 | Curing formation method for non-flat plate composite product and shaping mould |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103802329A (en) | 2014-05-21 |
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