CN103802329A - Integrated forming method for large-length-diameter-ratio composite tubular member - Google Patents
Integrated forming method for large-length-diameter-ratio composite tubular member Download PDFInfo
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- CN103802329A CN103802329A CN201210457507.0A CN201210457507A CN103802329A CN 103802329 A CN103802329 A CN 103802329A CN 201210457507 A CN201210457507 A CN 201210457507A CN 103802329 A CN103802329 A CN 103802329A
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- core
- mould
- forming method
- integrated
- forming
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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
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- 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
Abstract
The invention belongs to composite forming technology, and relates to an integrated forming method for a large-length-diameter-ratio composite tubular member. By combining a core mould with an integrated female mould for forming, the integrated forming method comprises the following steps: I. manufacturing the core mould; II. manufacturing the female mould; III. integrally laying up on the core mould; IV. installing the integrated female mould outside the layup; V. sealing a vacuum bag, and curing forming; VI. respectively stripping the female mould and the core mould. The manufacturing of the female mould in the step II refers to the completion of forming and manufacturing of the female mould on the core mould, and the female mould is made of tubular soft rubber materials. Compared with the simple female mould forming, the integrated forming method is more convenient and simple, and meets the requirement of integrated layup; compared with the traditional core mould forming method, the problem that the quality of the outer surface is bad can be avoided, the quality requirement on the outer surface of the tubular parts can be ensured, the surface of an inner cavity is smooth in quality and accurate in size, and can meet the research demand on the horizontal plane of certain model of helicopters.
Description
Technical field
The invention belongs to Composites Molding Techniques, relate to the integral forming method of the tubular member of a kind of big L/D ratio composite.
Background technology
The manufacture of the tubular composite element of big L/D ratio composite, is conventionally used separately core frock or uses separately female mould forming.Use separately the method for core, inner surface quality can guarantee, but can not guarantee the Forming Quality of outer surface; And use separately female mould forming, and can not meet on the one hand the needs of overall laying, cannot guarantee on the other hand its inwall quality and dimensional accuracy.The overall laying tubular articles that all has better quality to require for surfaces externally and internally, above two kinds of methods all cannot meet its moulding needs.
Summary of the invention
The object of the invention is:
A kind of forming method of the quality and the dimensional stability that guarantee pipe-shaped parts surfaces externally and internally is provided.
Technical scheme of the present invention is:
The tubular member integrated forming method of big L/D ratio composite, adopts core to carry out moulding in conjunction with overall former, comprises the following steps:
The first step, core manufacture;
Second step, former manufacture;
The 3rd step, overall laying on core;
The 4th step, lays overall former outward in laying;
The 5th step, seals vacuum bag processed, curing molding;
The 6th step, takes off respectively former and core;
Former described in second step is fabricated to: on core, complete the moulding manufacture of former, described former is tubulose soft rubber material.
Described core is metal core.
Advantage of the present invention is:
The present invention is more convenient succinct than simple female mould forming, and has met the requirement of overall laying; Than traditional mandrel molding method, avoid the poor problem of outer surface quality, guaranteed the quality requirement of pipe-shaped parts outer surface, and surface of internal cavity quality is smooth, size is accurate, has met the development needs of certain type helicopter horizontal plane.
Accompanying drawing explanation
Fig. 1 is certain type machine horizontal plane strut profile schematic diagram.
Fig. 2 is the horizontal plane strut parts locally cross section laying schematic diagram in embodiment, and wherein P003, P004, P005, P006, P015, P016, P017, P018 represent laying sequence number and laying order.
The specific embodiment
With a specific embodiment, the present invention is described in further details below:
Certain type machine horizontal plane strut, is long 1.1m, following Fig. 1 of composite material parts sketch of internal diameter 63.5mm, external diameter 66.5mm, and overall laying schematic diagram is as Fig. 2.The moulding process step of this part is as follows:
1. metal-cored molded making: manufacture metal core according to part internal diameter size etc.;
2. overall rubber former is manufactured: on metal core, complete the moulding manufacture of overall rubber former, the internal diameter of soft rubber former is 63.5mm, can guarantee that laying outer surface can evenly compress, moulding rear surface quality and good stability of the dimension;
3. the paving of part layering: in core frock, paving prepreg overlay on request,
4. lay overall former: be inserted in overall rubber mantle in the laying outside of completing, between former and laying, separate with barrier film, to guarantee the smooth demoulding of former;
5. envelope vacuum bag processed: at part former outer surface envelope vacuum bag processed, and carry out pre-compacted;
6. curing molding: part is put into autoclave and carry out forming and hardening;
7. demoulding finishing: take off respectively soft former and core, and carry out part polishing finishing.
Claims (2)
1. the tubular member integrated forming method of big L/D ratio composite, comprises the following steps:
The first step, core manufacture;
Second step, former manufacture;
The 3rd step, overall laying on core;
The 4th step, lays overall former outward in laying;
The 5th step, seals vacuum bag processed, curing molding;
The 6th step, takes off respectively former and core;
It is characterized in that, the former described in second step is fabricated to: on core, complete the moulding manufacture of former, described former is tubulose soft rubber material.
2. the tubular member integrated forming method of big L/D ratio composite as claimed in claim 1, is characterized in that, described core is metal core.
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 true CN103802329A (en) | 2014-05-21 |
| CN103802329B CN103802329B (en) | 2017-04-05 |
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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)
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| CN (1) | CN103802329B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106182805A (en) * | 2016-09-09 | 2016-12-07 | 西安爱生技术集团公司 | A kind of manufacturing process of the isometrical tubular structure of carbon fibre composite |
| CN106891545A (en) * | 2015-12-17 | 2017-06-27 | 航天海鹰(镇江)特种材料有限公司 | A kind of forming method containing hollow tubular blade based on composite |
| CN109795130A (en) * | 2019-03-10 | 2019-05-24 | 西安爱生技术集团公司 | A kind of isometrical tubular molding component tooling of big L/D ratio carbon fibre composite |
| CN114147996A (en) * | 2021-11-24 | 2022-03-08 | 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 (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0408161A2 (en) * | 1989-07-12 | 1991-01-16 | Mecron Medizinische Produkte Gmbh | Method of manufacturing a hollow body |
| 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 |
| 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 |
| CN102490372A (en) * | 2011-12-12 | 2012-06-13 | 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 (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0408161A2 (en) * | 1989-07-12 | 1991-01-16 | Mecron Medizinische Produkte Gmbh | Method of manufacturing a hollow body |
| 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 |
| 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 |
| CN102490372A (en) * | 2011-12-12 | 2012-06-13 | 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 |
Cited By (5)
| 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 | A kind of forming method containing hollow tubular blade based on composite |
| CN106182805A (en) * | 2016-09-09 | 2016-12-07 | 西安爱生技术集团公司 | A kind of manufacturing process of the isometrical tubular structure of carbon fibre composite |
| CN109795130A (en) * | 2019-03-10 | 2019-05-24 | 西安爱生技术集团公司 | A kind of isometrical tubular molding component tooling of big L/D ratio carbon fibre composite |
| CN114147996A (en) * | 2021-11-24 | 2022-03-08 | 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 |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN103802329B (en) | 2017-04-05 |
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