CN103950205B - A kind of T-shaped cross section ring-type rotary structure composite product forming method - Google Patents
A kind of T-shaped cross section ring-type rotary structure composite product forming method Download PDFInfo
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- CN103950205B CN103950205B CN201410097719.1A CN201410097719A CN103950205B CN 103950205 B CN103950205 B CN 103950205B CN 201410097719 A CN201410097719 A CN 201410097719A CN 103950205 B CN103950205 B CN 103950205B
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- frock
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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
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- Engineering & Computer Science (AREA)
- Robotics (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Moulding By Coating Moulds (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The present invention relates to a kind of T-shaped cross section ring-type rotary structure composite product forming method.Comprise the steps: in entity frock location silicone rubber auxiliary mould, then along the outer of silicone rubber auxiliary mould in entity frock laying base plate；Hollow frock is overturn, stile Surface coating politef release cloth and non-porous release film in hollow frock, the bottom of silicone rubber auxiliary mould with hollow frock is positioned, then goes out L-type annular inner edge bar along silicone rubber auxiliary mould outer to the stile of hollow frock laying in hollow frock；Again hollow frock is overturn, by hollow frock and entity tooling combination, fill 0 ° of fiber rod at R Angle Position, then along the outer surface of hollow frock stile and entity frock laying L-type annular outer edge bar；After laying completes, top cover, rubber process cover plate is sleeved on top cover and L-type annular outer edge bar, carries out curing molding.The present invention ensure that internal soundness and inside and outside R cutin amount, and can the demoulding smoothly.
Description
Technical field
The present invention relates to composite processing manufacturing technology field, specifically the forming method of a kind of T-shaped cross section ring-type rotary structure composite product.
Background technology
Being illustrated in figure 1 a kind of typical T-shaped cross section ring-type rotary structure product, because its curvature is big, structure is complicated, molding difficulty high, many employing metal materials or high performance resin material manufacture at present.Along with the requirement meeting lightweight and high intensity, airplane design have selected advanced composite material to manufacture its side of a ship window frame being T-shaped cross section ring-type rotary structure.In the prior art, composite the T-shaped section parts manufactured mostly is linear structure, usually used as the reinforcement of large-scale wallboard or beam rib product.For linear T-shaped cross section composite product, be generally adopted two linear rigid die molding, molding it is crucial that ensure two R Angle Position quality.And the composite product of T-shaped cross section ring-type rotary structure is integrally formed structure by L-type annular inner edge bar (11) and L-type annular outer edge bar (12) and base plate (13) three part as shown in Figure 1, molding difficulty will far above linear structure, assembling die must be used, after die assembly, inner side edge strip is the surface that a Guan Bi ring is close to interior side mold, because the resin in composite material solidification process overflows and radial contraction phenomenon, after solidification, the inner side of part will fit tightly with mould, make part removal difficulty, if forced stripper mechanism, it is easy to part or mould are caused damage；During die assembly, due to the existence of part base plate, producing the Guan Bi cavity that height is base plate thickness between two moulds, the existence of this cavity will have a strong impact on the pressure effect of part；The quality at the inside and outside R angle of rotary structure part is compared the part of linear structure and is more difficult to control to.
Summary of the invention
It is an object of the invention to for T-shaped cross section ring-type rotary structure composite product molding difficulty big, internal soundness, inside and outside R cutin amount are difficult to control to and the problem of the difficult demoulding, one is provided to ensure that internal soundness and inside and outside R cutin amount and the forming method of the energy T-shaped cross section ring-type rotary structure composite product of the demoulding smoothly.
The technical solution used in the present invention is:
A kind of T-shaped cross section ring-type rotary structure composite product forming method, comprises the steps:
1) make the model of T-shaped cross section ring-type rotary structure composite product, utilize modelling rubber process cover plate；
2) requirement is coordinated to make silicone rubber positioning assisting tooling according to the base plate of T-shaped cross section ring-type rotary structure composite product and L-type annular inner edge bar；Silicone rubber positioning assisting tooling is cylindrical；
3) in entity frock position silicone rubber auxiliary mould, then along the outer of silicone rubber auxiliary mould in entity frock laying base plate；
4) hollow frock is overturn, stile Surface coating one strata tetrafluoroethene release cloth in hollow frock, then one layer of non-porous release film of Surface coating is contacted during on hollow frock stile surface with entity tooling combination, the bottom surface of silicone rubber auxiliary mould with hollow frock is positioned, then goes out L-type annular inner edge bar along silicone rubber auxiliary mould outer to the stile of hollow frock laying in hollow frock；
5) more hollow frock is overturn, by hollow frock and entity tooling combination, during combination, between two set frocks, Guan Bi cavity utilizes silicone rubber positioning assisting tooling to fill up, 0 ° of fiber rod is filled, then along the outer surface of hollow frock stile and entity frock laying L-type annular outer edge bar at R Angle Position；
6) after laying completes, top cover, rubber process cover plate is sleeved on top cover and L-type annular outer edge bar, carries out curing molding, make L-type annular inner edge bar and L-type annular outer edge bar and base plate three part be integrally formed structure.
The invention has the beneficial effects as follows: first, the present invention has been coated with a strata tetrafluoroethene release cloth and one layer of non-porous release film successively on hollow frock surface, the resin overflowed in solidification process is effectively prevented to be bonded at the surface of hollow frock, even if part has certain contraction after solidification, it is also possible to realize the smooth demoulding by first extracting the politef release cloth being clipped between part and hollow frock out；Secondly, the present invention utilizes silicone rubber positioning assisting tooling, not only achieve base plate and the precise positioning of L-type annular inner edge bar laying, utilize the favorable elasticity that rubber has simultaneously, achieve the accurate combination of two set frocks, effectively fill up the cavity owing to base plate thickness is formed, it is ensured that the pressurization quality of the inner side of part, and then ensure that the internal soundness of part；Finally utilize steel frock and rubber process cover plate to control the quality at inside and outside R angle respectively, adopt the mode of rigid flexible system to be effectively guaranteed the quality at inside and outside R angle.
Accompanying drawing explanation
Fig. 1 is the structural representation of typical T-shaped cross section ring-type rotary structure composite product.
Fig. 2 is the structural representation of forming frock in the present invention.
Detailed description of the invention
A kind of T-shaped cross section of embodiment ring-type rotary structure composite product forming method
(1) forming frock
It is illustrated in figure 2 a kind of forming frock: be made up of entity frock (1), hollow frock (2), top cover (3) and alignment pin (4).
(2) forming method
1) make the model of T-shaped cross section ring-type rotary structure composite product, utilize modelling rubber process cover plate；Rubber process cover plate flexibility is high, it is possible to meet the requirement of rotary structure higher curvature outer mold surface R angle pressurization；
2) requirement is coordinated to make silicone rubber positioning assisting tooling according to the base plate of T-shaped cross section ring-type rotary structure composite product and L-type annular inner edge bar；Silicone rubber positioning assisting tooling is cylindrical；
3) in entity frock position silicone rubber auxiliary mould, then along the outer of silicone rubber auxiliary mould in entity frock laying base plate；
4) hollow frock is overturn, stile Surface coating one strata tetrafluoroethene release cloth in hollow frock, then one layer of non-porous release film of Surface coating is contacted during on hollow frock stile surface with entity tooling combination, the bottom of silicone rubber auxiliary mould with hollow frock is positioned, then goes out L-type annular inner edge bar along silicone rubber auxiliary mould outer to the stile of hollow frock laying in hollow frock；
5) more hollow frock is overturn, by hollow frock and entity tooling combination, during combination, between two set frocks, Guan Bi cavity utilizes the silicone rubber positioning assisting tooling made to fill up, this silicone rubber permeability is good, and profile is mated with part height, it is possible to play good auxiliary pressurized effect；0 ° of fiber rod is filled, then along the outer surface of hollow frock stile and entity frock laying L-type annular outer edge bar at R Angle Position；
6) after laying completes, top cover, rubber process cover plate is sleeved on top cover and L-type annular outer edge bar, carries out curing molding, make L-type annular inner edge bar (11) and L-type annular outer edge bar (12) and base plate (13) be structure as a whole.
Claims (2)
1. a T-shaped cross section ring-type rotary structure composite product forming method, it is characterised in that comprise the steps:
1) make the model of T-shaped cross section ring-type rotary structure composite product, utilize modelling rubber process cover plate；
2) requirement is coordinated to make silicone rubber positioning assisting tooling according to the base plate of T-shaped cross section ring-type rotary structure composite product and L-type annular inner edge bar；
3) in entity frock position silicone rubber auxiliary mould, then along the outer of silicone rubber auxiliary mould in entity frock laying base plate；
4) hollow frock is overturn, stile Surface coating one strata tetrafluoroethene release cloth in hollow frock, then one layer of non-porous release film of Surface coating is contacted during on hollow frock stile surface with entity tooling combination, the bottom surface of silicone rubber auxiliary mould with hollow frock is positioned, then goes out L-type annular inner edge bar along silicone rubber auxiliary mould outer to the stile of hollow frock laying in hollow frock；
5) more hollow frock is overturn, by hollow frock and entity tooling combination, during combination, between two set frocks, Guan Bi cavity utilizes silicone rubber positioning assisting tooling to fill up, 0 ° of fiber rod is filled, then along the outer surface of hollow frock stile and entity frock laying L-type annular outer edge bar at R Angle Position；
6) after laying completes, top cover, rubber process cover plate is sleeved on top cover and L-type annular outer edge bar, carries out curing molding.
2. the forming frock for the forming method described in claim 1, it is characterised in that: described forming frock is made up of entity frock (1), hollow frock (2), top cover (3) and alignment pin (4).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410097719.1A CN103950205B (en) | 2014-03-18 | 2014-03-18 | A kind of T-shaped cross section ring-type rotary structure composite product forming method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410097719.1A CN103950205B (en) | 2014-03-18 | 2014-03-18 | A kind of T-shaped cross section ring-type rotary structure composite product forming method |
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| CN103950205A CN103950205A (en) | 2014-07-30 |
| CN103950205B true CN103950205B (en) | 2016-07-06 |
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| CN104441677A (en) * | 2014-09-16 | 2015-03-25 | 沈阳飞机工业（集团）有限公司 | R angle folding and molding method of large-thickness composite material workpiece |
| CN104494161B (en) * | 2014-11-26 | 2017-02-01 | 沈阳飞机工业（集团）有限公司 | Manufacture method for Z-shaped structure composite material product |
| CN114229044B (en) * | 2021-11-18 | 2023-07-25 | 北京卫星制造厂有限公司 | Preparation method of revolving body heat-proof suit |
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| JP2593772B2 (en) * | 1992-09-01 | 1997-03-26 | 川崎重工業株式会社 | Manufacturing method for composite products |
| JP4648019B2 (en) * | 2005-02-02 | 2011-03-09 | 本田技研工業株式会社 | PRESSURE BAG MANUFACTURING METHOD AND COMPOSITE MOLDED ARTICLE MOLDING METHOD USING THE PRESSURE BAG |
| CN101391488B (en) * | 2008-08-22 | 2010-06-09 | 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 |
| CN202088471U (en) * | 2011-01-12 | 2011-12-28 | 深圳市艾飞盛风能科技有限公司 | RTM (resin transfer molding) die for blade of wind driven generator and corresponding blade |
| CN102886903A (en) * | 2012-09-13 | 2013-01-23 | 沈阳飞机工业（集团）有限公司 | Forming tool of long-beam composite material part and forming method of long-beam composite material part |
| CN103496179B (en) * | 2013-10-10 | 2015-11-18 | 航天海鹰(镇江)特种材料有限公司 | The forming method of i shaped cross section composite material structural member |
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