CN111267367A - Processing method for forming double-side zero-degree fiber T-shaped stringer - Google Patents
Processing method for forming double-side zero-degree fiber T-shaped stringer Download PDFInfo
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- CN111267367A CN111267367A CN202010179586.8A CN202010179586A CN111267367A CN 111267367 A CN111267367 A CN 111267367A CN 202010179586 A CN202010179586 A CN 202010179586A CN 111267367 A CN111267367 A CN 111267367A
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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
-
- 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
-
- 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
- B29C70/541—Positioning reinforcements in a mould, e.g. using clamping means for the reinforcement
-
- 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
- B29C70/543—Fixing the position or configuration of fibrous reinforcements before or during moulding
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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
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3097—Cosmonautical vehicles; Rockets
Abstract
The invention belongs to the technical field of composite material member manufacturing technology, and particularly relates to a processing method for forming a bilateral zero-degree fiber T-shaped stringer. The method provided by the invention adopts the die and the cover plate as the laying positioning reference and adopts a new combined curing mode, thereby simplifying the laying process, limiting the filling position of zero-degree fibers and ensuring that the pressure inside the stringer is uniformly distributed during curing.
Description
Technical Field
The invention belongs to the technical field of composite material member manufacturing technology, and particularly relates to a processing method for forming a bilateral zero-degree fiber T-shaped stringer.
Background
With the development of aerospace manufacturing technology, the use amount of composite materials of large passenger planes is increasing day by day, and the composite materials are also developed from non-bearing structures to secondary bearing structures, even main bearing structures. The stringer is one of the important components of the wallboard as the main bearing component of the wallboard. Domestic stringer cross-sections typically adopt an "I" -shaped, "T" -shaped or "omega" -shaped structure. In order to meet the requirement of higher strength of a large passenger plane, the intermediate ply structure of the stringer and the filling form of the zero-degree fibers on two sides are added aiming at the T-shaped stringer.
The T-shaped stringer (see figure 1) with the new structure is difficult to lay due to the lack of zero-degree fiber filling reference in the laying process, the zero-degree fiber filling position is inaccurate, the overall dimension of the stringer can not be guaranteed, and the zero-degree fiber in the cured stringer has the defects of filling interference, ply distortion and the like. The T-shaped stringer paving with the new structure is complex, and the traditional combined curing mode cannot enable the internal pressure to be uniform.
Disclosure of Invention
Based on the novel T-shaped stringer structure form, the invention provides a processing method for forming a bilateral zero-degree fiber T-shaped stringer, so that each step of laying has a corresponding rigidity standard, pressure distribution at each position is uniform during curing, and the processing method is used for solving the problem of stringer defects caused by laying deviation and uneven pressure distribution.
The technical scheme of the invention is as follows:
a processing method for forming double-side zero-degree fiber T-shaped stringers comprises the following steps:
step 1, tool preparation
Wiping the surface of the tool with acetone, coating a release agent, and pushing the tool to a purification room; the tooling comprises a stringer tooling, a stringer horizontal side composite material carbon fiber paving cover plate 102 and a zero-degree fiber forming die, wherein the stringer tooling comprises two symmetrical stringer forming dies 101;
Cutting and blanking the stringer cut pieces by using an automatic blanking machine;
3.1) calculating a blank, wherein the area of the zero-degree fiber is equal to the thickness of a single prepreg layer multiplied by the width of the prepreg, and calculating the required width of the prepreg;
3.2) rolling the single-layer prepreg with the required width calculated in the step 3.1) into a circular blank, transferring the circular blank onto a zero-degree fiber forming die, and covering a metal cover plate;
3.3) carrying out zero-degree fiber hot compaction, and carrying out hot compaction on the zero-degree fibers on a heating platform according to the hot compaction temperature of the required prepreg;
4.1) laying up stringer blanks 103 on one side on a stringer forming die 101 on that side and compacting;
4.2) paving the stringer horizontal side blank 104 on the stringer horizontal side composite material carbon fiber paving cover plate 102 according to edge lines, and compacting;
4.3) combining the stringer horizontal side blank 104 and the stringer horizontal side composite material carbon fiber paving cover plate 102 which are paved in the step 4.2) onto the stringer forming die 101 obtained in the step 4.1) according to a moulding line, and fixing the stringer horizontal side composite material carbon fiber paving cover plate 102 by using an adhesive tape;
4.4) laying zero-degree fibers 105, and transferring the zero-degree fibers 105 preformed in the step 3) to the vacant positions of the stringer blank 103 and the stringer horizontal side blank 104 on the side obtained in the step 4.3);
4.5) the lay-up and transfer of stringer ply stock 106, lay-up stringer ply stock 106 on a lay-up table, and compact during lay-up;
4.6) transferring the zero-degree fiber 105 on the other side, and transferring the preformed zero-degree fiber 105 in the step 3) to the corner of the stringer middle layer blank 106 and the stringer horizontal side blank 104;
4.7) laying the blanks on the other side of the stringer, laying the stringer blanks 103 on the other side of the stringer on symmetrical stringer forming dies 101 on the other side of the stringer, and compacting;
4.8) stringer combining, transferring the laid stringer blank 103 on the other side to a corresponding position together with the forming die to complete the stringer assembling
Form combination;
and 5, packaging and curing the stringer. Application to the curing plate 7 obtained in step 4)
The formally combined stringer is packaged and vacuum leak testing is completed and the stringer is cured.
In a particular embodiment, the curing step 4) is carried out on a curing plate 7
Long combined with formThe trusses are packaged, and are fixed on the ends of the long trusses by single-layer AIRPAD rubber 2; occupying space in the corner area of the tool by using the putty strips 6 to prevent leakage bags caused by bridging during curing; laying a non-porous isolating membrane 3, an air-permeable felt 4 and a vacuum bag 5 in sequence; and carrying out vacuum leakage detection on the packaged stringer, and curing to finally obtain the composite material bilateral zero-degree fiber T-shaped stringer.
The invention has the advantages that:
the invention provides a novel stringer forming method aiming at bilateral zero-degree fiber filling. The method adopts the die and the cover plate as the laying positioning reference and adopts a new combined curing mode, thereby simplifying the laying process, limiting the filling position of zero-degree fibers and ensuring that the pressure inside the stringer is uniformly distributed during curing. Specifically, the method provided by the invention has the following advantages:
1. the laying method in the novel stringer forming method filled with zero-degree fibers at two sides solves the problem that stringer blanks are unshaped preforms and do not have certain rigidity in the stringer laying process.
2. In the process of laying, each step is provided with a rigid cover plate and a die as references, so that the laying process is simple and convenient, and the efficiency is high.
3、
The method for the form combination curing can effectively ensure the uniform distribution of the pressure of the stringer in the curing process, and reduce the probability of dense defects of gaps caused by uneven pressure in the curing process.
Drawings
FIG. 1 is a schematic perspective view of a composite bilateral zero degree fiber T-stringer.
Fig. 2A to 2H are schematic diagrams of the composite material double-sided zero-degree fiber T-shaped stringer assembly.
FIG. 3 is a schematic view of a composite double-sided zero degree fiber T-stringer package.
In the figure: 101 stringer molding dies; 102, paving a long purlin horizontal side composite material carbon fiber paving cover plate; 103 stringer blank; 104 stringer lying side stock; 105 zero degree fibers; 106 stringer ply stock; 2AIRPAD rubber; 3 a nonporous barrier film; 4, air-permeable felt; 5, vacuum bag; 6, putty strips; the flat plate 7 is cured.
Detailed Description
The following further describes a specific embodiment of the present invention with reference to the drawings and technical solutions.
It is to be understood that the appended drawings are not to scale, but are merely drawn with appropriate simplifications to illustrate various features of the basic principles of the invention. Specific design features of the invention disclosed herein, including, for example, specific dimensions, orientations, locations, and configurations, will be determined in part by the particular intended application and use environment.
In the several figures of the drawings, identical or equivalent components (elements) are referenced with the same reference numerals.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In this embodiment, the processing method for forming the double-sided zero-degree fiber T-shaped stringer includes the following steps:
step 1, tool preparation.
And wiping the surface of the tool with acetone, brushing a release agent, and pushing the tool to a purification room. The tooling comprises a stringer tooling, a stringer horizontal side composite carbon fiber paving cover plate 102 and a zero-degree fiber forming die, wherein the stringer tooling comprises two symmetrical stringer forming dies 101.
And 2, cutting and blanking.
And cutting and blanking the stringer cut pieces by using an automatic blanking machine. Note that the panels need to be placed in order and by category to avoid stacking errors.
And 3, preforming the stringer zero-degree fibers.
3.1) calculating the blank, and calculating the required prepreg width by the area of the zero-degree fiber being the prepreg single layer thickness x the prepreg width.
3.2) rolling the single-layer prepreg with the required width calculated in the step 3.1) into a circular blank, transferring the circular blank onto a zero-degree fiber forming die, and covering a metal cover plate.
3.3) carrying out zero-degree fiber hot compaction, and carrying out hot compaction on the zero-degree fibers on a heating platform according to the hot compaction temperature of the required prepreg. The hot compaction time should meet the corresponding specifications. And protecting the zero-degree fiber after hot compaction by using a non-porous isolating film.
And 4, combining the stringers.
4.1) lay up stringer blanks 103 on one side of stringer molding dies 101. In order to meet the bonding effect of the cutting piece and the tool and no bubble generation between layers, every 3 layers are compacted in one step, and the vacuum degree is not less than 0.08MPa in the compaction process, which is shown in figure 2A.
4.2) laying up stringer side blanks 104 on the stringer side composite carbon fiber lay-up sheathing 102 according to the edge lines. Compaction is the same as step 4.1), see fig. 2B.
4.3) combining the stringer horizontal side blank 104 and the stringer horizontal side composite material carbon fiber paving cover plate 102 which are well paved in the step 4.2) onto the stringer forming die 101 obtained in the step 4.1) according to a moulding line, and fixing the stringer horizontal side composite material carbon fiber paving cover plate 102 by using an adhesive tape, which is shown in a figure 2C.
4.4) laying zero degree fibres 105. The preformed zero degree fiber 105 of step 3) is transferred to the void between stringer blank 103 and stringer blank 104 on that side obtained in step 4.3), see fig. 2D.
4.5) layup and transfer of stringer ply stock 106. The stringer ply stock 106 is laid up at the lay-up table and transferred to the appropriate location. Compaction at lay-up is as in step 4.1), see fig. 2E.
4.6) transfer of zero degree fibers 105 from the other side, transfer of the preformed zero degree fibers 105 from step 3) to the corners of stringer medial ply stock 106 and stringer side stock 104, see FIG. 2F.
4.7) the stringer blank 103 on the other side is laid on the stringer forming die 101 symmetrical on the other side, compaction step 4.1) is performed, see fig. 2G.
4.8) stringer combining, transferring the laid stringer blank 103 on the other side to a corresponding position together with the forming die to complete the stringer assembling
Form combinations, see fig. 2H.
And 5, packaging and curing the stringer. Application to the curing plate 7 obtained in step 4)
Packaging the long purlins in a form combination and completing vacuum leakage detection; and curing the stringer by adopting the corresponding standard parameters of the prepreg.
In particular, with reference to FIG. 3, it is applied to step 4) on a curing plate 7
The assembled stringer was potted using a single layer of AIRPAD rubber 2 secured to the stringer ends. And the putty strips 6 are used for occupying the corner area of the tool, so that leakage bags caused by bridging during curing are prevented. Laying a non-porous isolating membrane 3, an air-permeable felt 4 and a vacuum bag 5 in sequence. And (4) carrying out vacuum leakage detection on the packaged stringer, and curing according to corresponding curing parameters to finally obtain the composite material bilateral zero-degree fiber T-shaped stringer.
The above description of exemplary embodiments has been presented only to illustrate the technical solution of the invention and is not intended to be exhaustive or to limit the invention to the precise form described. Obviously, many modifications and variations are possible in light of the above teaching to those skilled in the art. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to thereby enable others skilled in the art to understand, implement and utilize the invention in various exemplary embodiments and with various alternatives and modifications. It is intended that the scope of the invention be defined by the following claims and their equivalents.
Claims (2)
1. A processing method for forming bilateral zero-degree fiber T-shaped stringers is characterized by comprising the following steps:
step 1, tool preparation
Wiping the surface of the tool with acetone, coating a release agent, and pushing the tool to a purification room; the tooling comprises a stringer tooling, a stringer horizontal side composite material carbon fiber paving cover plate (102) and a zero-degree fiber forming die, wherein the stringer tooling comprises two symmetrical stringer forming dies (101);
step 2, cutting and blanking
Cutting and blanking the stringer cut pieces by using an automatic blanking machine;
step 3, preforming of stringer zero-degree fibers
3.1) calculating a blank, wherein the area of the zero-degree fiber is equal to the thickness of a single prepreg layer multiplied by the width of the prepreg, and calculating the required width of the prepreg;
3.2) rolling the single-layer prepreg with the required width calculated in the step 3.1) into a circular blank, transferring the circular blank onto a zero-degree fiber forming die, and covering a metal cover plate;
3.3) carrying out zero-degree fiber hot compaction, and carrying out hot compaction on the zero-degree fiber on a heating platform;
step 4, stringer combining
4.1) laying up stringer blanks (103) on one side on a stringer forming die (101) of that side and compacting;
4.2) paving the stringer horizontal side blank (104) on the stringer horizontal side composite material carbon fiber paving cover plate (102) according to edge lines, and compacting;
4.3) combining the stringer horizontal side blank (104) paved in the step 4.2) and the stringer horizontal side composite material carbon fiber paving cover plate (102) to the stringer forming die (101) obtained in the step 4.1) according to a moulding line, and fixing the stringer horizontal side composite material carbon fiber paving cover plate (102) by using an adhesive tape;
4.4) laying zero-degree fibers (105), and transferring the zero-degree fibers (105) preformed in the step 3) into the vacant positions of the stringer blank (103) and the stringer horizontal side blank (104) on the side obtained in the step 4.3);
4.5) the stacking and transferring of the stringer middle layer blank (106), the stringer middle layer blank (106) is stacked on a laying working platform and compacted during stacking;
4.6) transferring the zero-degree fiber (105) on the other side, and transferring the preformed zero-degree fiber (105) in the step 3) to the corner of the stringer middle layer blank (106) and the stringer horizontal side blank (104);
4.7) laying the blanks on the other side of the stringer, laying the stringer blanks (103) on the other side of the stringer on symmetrical stringer forming dies (101) on the other side of the stringer, and compacting;
4.8) stringer combination, transferring the laid stringer blank (103) on the other side to a corresponding position together with a forming die to finish
Form combination;
step 5, stringer encapsulation and curing, on a curing plate (7) for the application obtained in step 4)
The formally combined stringer is packaged and vacuum leak testing is completed and the stringer is cured.
2. The method of claim 1, wherein step 5) comprises applying the curing plate (7) to step 4)
Packaging the formly combined stringer, and fixing the formly combined stringer on the stringer end by using single-layer AIRPAD rubber (2); occupying space in the corner area of the tool by using a putty strip (6) to prevent leakage bags caused by bridging during curing; laying a non-porous isolating membrane (3), an air-permeable felt (4) and a vacuum bag (5) in sequence; carrying out vacuum leakage detection on the packaged stringer, and curing to finally obtain the composite material bilateral zero-degree fiberAnd (5) maintaining the T-shaped stringer.
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| CN202010179586.8A CN111267367A (en) | 2020-03-16 | 2020-03-16 | Processing method for forming double-side zero-degree fiber T-shaped stringer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111806472A (en) * | 2020-07-16 | 2020-10-23 | 常州市新创智能科技有限公司 | Composite material storage battery trolley and manufacturing method thereof |
| CN111958884A (en) * | 2020-08-17 | 2020-11-20 | 沈阳飞机工业（集团）有限公司 | Composite material large-scale wing I-shaped stringer wallboard forming tool |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100181016A1 (en) * | 2007-06-14 | 2010-07-22 | Alenia Aeronautica S.P.A. | Curing method and apparatus for manufacturing beams of composite material with a j-shaped cross-section |
| CN103802332A (en) * | 2014-03-03 | 2014-05-21 | 沈阳飞机工业（集团）有限公司 | Filled 0-degree carbon fiber prepreg preforming tooling and preforming process |
| US9638230B2 (en) * | 2013-05-16 | 2017-05-02 | The Boeing Company | Composite structure and method |
| CN108973159A (en) * | 2017-05-31 | 2018-12-11 | 中国商用飞机有限责任公司 | A kind of I-shaped stringer moulding process of composite material |
| CN110385862A (en) * | 2019-07-20 | 2019-10-29 | 成都飞机工业（集团）有限责任公司 | A kind of forming method of T shape composite material stringer |
| CN110450937A (en) * | 2019-08-23 | 2019-11-15 | 中国商用飞机有限责任公司北京民用飞机技术研究中心 | Composite material " work " type stringer wall panel structure, molding die and forming method |
-
2020
- 2020-03-16 CN CN202010179586.8A patent/CN111267367A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100181016A1 (en) * | 2007-06-14 | 2010-07-22 | Alenia Aeronautica S.P.A. | Curing method and apparatus for manufacturing beams of composite material with a j-shaped cross-section |
| US9638230B2 (en) * | 2013-05-16 | 2017-05-02 | The Boeing Company | Composite structure and method |
| CN103802332A (en) * | 2014-03-03 | 2014-05-21 | 沈阳飞机工业（集团）有限公司 | Filled 0-degree carbon fiber prepreg preforming tooling and preforming process |
| CN108973159A (en) * | 2017-05-31 | 2018-12-11 | 中国商用飞机有限责任公司 | A kind of I-shaped stringer moulding process of composite material |
| CN110385862A (en) * | 2019-07-20 | 2019-10-29 | 成都飞机工业（集团）有限责任公司 | A kind of forming method of T shape composite material stringer |
| CN110450937A (en) * | 2019-08-23 | 2019-11-15 | 中国商用飞机有限责任公司北京民用飞机技术研究中心 | Composite material " work " type stringer wall panel structure, molding die and forming method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111806472A (en) * | 2020-07-16 | 2020-10-23 | 常州市新创智能科技有限公司 | Composite material storage battery trolley and manufacturing method thereof |
| CN111958884A (en) * | 2020-08-17 | 2020-11-20 | 沈阳飞机工业（集团）有限公司 | Composite material large-scale wing I-shaped stringer wallboard forming tool |
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