CN107081918A - A kind of prepreg tape laying track planing method of the free form surface class part based on flexible compression roller - Google Patents
A kind of prepreg tape laying track planing method of the free form surface class part based on flexible compression roller Download PDFInfo
- Publication number
- CN107081918A CN107081918A CN201710354092.7A CN201710354092A CN107081918A CN 107081918 A CN107081918 A CN 107081918A CN 201710354092 A CN201710354092 A CN 201710354092A CN 107081918 A CN107081918 A CN 107081918A
- Authority
- CN
- China
- Prior art keywords
- free form
- form surface
- compression roller
- prepreg tape
- flexible compression
- 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
- B29C70/38—Automated lay-up, e.g. using robots, laying filaments according to predetermined patterns
- B29C70/386—Automated tape laying [ATL]
-
- 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
- B29C70/386—Automated tape laying [ATL]
- B29C70/388—Tape placement heads, e.g. component parts, details or accessories
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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)
Abstract
A kind of prepreg tape laying track planing method for free form surface class part based on flexible compression roller that the present invention is provided, made rational planning for by laying path to free form surface class part prepreg tape placement process process China, the paving of prepreg tape is carried out using flexible compression roller simultaneously, the lay of the prepreg tape of free form surface class part can be well adapted for, free form surface class part prepreg tape is solved and lays rare problem.Pass through the adjustment to flexible compression roller contact value simultaneously, so that according to the free form surface class part of different curvature, preimpregnation belt composite can produce the contact width value between different flexible compression roller and free form surface core, to adapt to the lay of different in width prepreg tape, moreover it is possible to play the prepreg tape lay precision for improving free form surface class part and lay efficiency.
Description
Technical field
It is particularly a kind of based on flexible pressure the present invention relates to a kind of composite material prepreg laying forming method for planning track
The prepreg tape laying track planing method of the free form surface class part of roller.
Background technology
As people progressively deepen the understanding to composite element superiority, particularly in high-end technologies such as Aero-Space
The more application composite of industrial field, the requirement to complicated shape laying forming part becomes increasingly strong.Advanced composite
The sustained and rapid development of material, its application value is also increasingly notable.In terms of space product technical performance is improved, composite
Application advantage is not only embodied in the structural material as lighting, and loss of weight, section can be reached on the premise of part strength is ensured
The effect of energy, is more embodied in as the advanced function material for meeting various application demands, represents composite technology high-level
The new and high technology such as structure/function integration of development and multiple function integration.At present, China currently greatly develops manned
The high and new technology engineerings, wherein motor body, jet pipe, big aircraft such as space flight, lunar exploration plan, big aircraft, four generation machines, wind-power electricity generation
Wing, fuselage, the large-scale irregular structural member such as blade of wind-driven generator need composite material process planning to realize, this is also to compound
Material forming process proposes the demand of more challenge with equipment.Therefore the composite material laying of free form surface component is molded
The research of technology equipment just seems extremely urgent and important, to promoting modern Aerospace manufacturing technological progress to have important show
Sincere justice and application value.
Prepreg tape laying forming technical process can be described as first completing prepreg tape in preparation mechanism of prepreg tape
Tightly it is allowed to form parallel prepreg tape with the cutting of predetermined shape；Again by prepreg tape by heating devices heat to required process warm
After degree by pressure roller by prepreg tape according to predetermined track or path at the appropriate speed paving to mandrel surface.And it is existing freely bent
Noodles part is when laying, because the rigid contact of pressure roller and core prevents prepreg tape from being fully fitted in mandrel surface, together
When to lay when pressure roller laying track do not plan reasonably, cause free form surface prepreg tape spreading difference in addition can not spread
The problem of putting.
The content of the invention
It is an object of the invention to provide a kind of prepreg tape laying track of the free form surface class part based on flexible compression roller
Planing method, solves existing free form surface class part in lay, because the rigid contact of pressure roller and core makes prepreg tape
Mandrel surface can not be fully fitted in, at the same to lay when pressure roller laying track do not plan reasonably, cause free song
The problem of face prepreg tape spreading difference can not even be laid.
In order to achieve the above object, the technical solution adopted by the present invention is specific as follows：
A kind of prepreg tape laying track planing method for free form surface class part based on flexible compression roller that the present invention is provided,
Comprise the following steps：
The first step, the preimpregnation in setting prepreg tape laying device is required according to the lay of the prepreg tape of free form surface class part
With the contact value between the flexible compression roller in laying device and free form surface core；
Second step, the contact value set according to the first step, connecing between measurement flexible compression roller and free form surface core
Touch width value；
3rd step, sets the initial path of the prepreg tape laying track of free form surface class part；
At the beginning of 4th step, the prepreg tape laying track of contact width value and free form surface class part according to obtained by second step
Beginning path, it is determined that next time lay path offset or dish and biased direction；
5th step, the contact width value according to obtained by second step, it is determined that laying the width of prepreg tape used；
6th step, prepreg tape is wound on flexible compression roller, and by prepreg tape laying device according to the above-mentioned first step~the
Five steps are laid, until the complete paving of prepreg tape is untill free form surface mandrel surface；
7th step, repeats the step of the first step~the 6th, until the lay number of plies required by meeting.
In second step, the measuring method of contact width value is specially：Flexible compression roller is close to free form surface core direction,
The actual contact value between flexible compression roller and free form surface core is measured, when the actual contact value and first measured
When setting contact value is equal in step, stops flexible compression roller to the movement in free form surface core direction and keep this state not
Become, the two-end-point position of mark flexible compression roller and free form surface core contact arc length, then measure straight between contact arc length two-end-point
Contact width value between the length of line segment, as flexible compression roller and free form surface core.
Preferably, in the 3rd step, the initial path of the prepreg tape laying track of free form surface class part is specifically to want
The free form surface core of lay two it is long it is any in one it is long while boundary line be used as initial path.
Preferably, in the 4th step, the determination of biased direction：Biased direction should perpendicular to initial path, and towards with it is initial
The direction that path mutually deviates from；The determination of offset or dish：The offset or dish of lay should be less than flexible compression roller and free form surface core it
Between contact width value, and every time lay when offset or dish should be equal.
Preferably, in the 5th step, the width of prepreg tape used is laid equal to the offset or dish obtained by the 4th step.
Preferably, in the 6th step, the path weight of the side edge line of flexible compression roller all the time with planning is ensured when laying
Close, and when laying each time, the offset or dish of lay should keep constant.
Preferably, the flexible compression roller is the solid or hollow inflatable formula structure of flexible deformation.
Preferably, the prepreg tape laying device also include the first pressing roller holder, pressure roller lining, the second pressing roller holder and in
Heart axle, wherein, pressure roller lining is set with center shaft, and flexible compression roller is sleeved on pressure roller lining, and the second pressing roller holder is provided with
Two, and its one end is fixed on the two ends of central shaft, the other end is with the first pressing roller holder by being fixedly connected.
Preferably, pressure roller lining is to be installed with the hollow cylinder structure that two ends are provided with clamping disk, clamping disk
Bearing (ball) cover, bearing (ball) cover is connected with the deep groove ball bearing being sleeved on the central shaft shaft shoulder.
Compared with prior art, the beneficial effects of the invention are as follows：
A kind of prepreg tape laying track planing method for free form surface class part based on flexible compression roller that the present invention is provided,
By being made rational planning for laying path during free form surface prepreg tape placement process, while being presoaked using flexible compression roller
The paving of band, the prepreg tape that can be well adapted for free form surface class part is laid, and solves free form surface class part prepreg tape
Lay rare problem.Pass through the adjustment to flexible compression roller contact value simultaneously so that according to the free form surface class of different curvature
Part, can produce the contact width value between different flexible compression roller and free form surface core, to adapt to different in width preimpregnation
The lay of band, moreover it is possible to play the prepreg tape lay precision for improving free form surface class part and lay efficiency.
Further, the flexible compression roller of flexible deformation, it is ensured that certain endurance, while also assures that the work in power
There is good deformability with lower, the laying forming of the free form surface class part of different curvature is applicable.
Further, flexible compression roller is supported and clamping by pressure roller lining, it is ensured that flexible compression roller is operationally
Do not occur relative linear displacement and angular displacement.
Brief description of the drawings
Fig. 1 is laying device structural representation；
Fig. 2 is laying device Structure explosion diagram；
Fig. 3 is center spindle structure schematic diagram；
Fig. 4 is the second pressing roller holder structural representation；
Fig. 5 is pressure roller lining structural representation；
Fig. 6 is flexible compression roller structural representation；
Fig. 7 is contact width value schematic diagram；
Wherein, the 1, first pressing roller holder 2, pressure roller lining 3, the second pressing roller holder 4, central shaft 5, flexible compression roller 6,
Deep groove ball bearing 8, bearing (ball) cover.
Embodiment
Below in conjunction with the accompanying drawings, the present invention is described in more detail.
As shown in Figure 1 and Figure 2, the prepreg tape paving for a kind of free form surface class part based on flexible compression roller that the present invention is provided
Put device, including the first pressing roller holder 1, pressure roller lining 2, the second pressing roller holder 3, central shaft 4, flexible compression roller 5, deep groove ball bearing
6 and bearing (ball) cover 7, wherein, pressure roller lining 2 is sleeved on central shaft 4, and flexible compression roller 5 is sleeved on pressure roller lining 2, is being installed
When, it is ensured that the radial direction middle section of flexible compression roller 5, pressure roller lining 2 and central shaft 4 coincides.
Meanwhile, one end and the shaft shoulder on central shaft 4 of deep groove ball bearing 6 are connected, and its other end passes through bearing (ball) cover 7
Compress, it is ensured that operationally, deep groove ball bearing 6 is not moved axially.
Shaft-cup end cap 7 is sleeved on central shaft 4, and is fixedly mounted on by hexagon socket head cap screw the end of pressure roller lining 2.
One end of second pressing roller holder 3 is fixed on the two ends of central shaft 4, and the other end and the first pressing roller holder 1 pass through interior six
Angle nut is fixedly connected.
As shown in figure 3, the two ends of central shaft 4 are tack circular shaft.
As shown in figure 4, offering the screw thread being fixedly connected with the first pressing roller holder 1 on the end face of the second pressing roller holder 3
The mating holes with the tack circular shaft fixation of central shaft 4 is offered on hole, the side of the other end.
As shown in figure 5, pressure roller lining 2 is the hollow cylinder structure that two ends are provided with clamping disk, bearing (ball) cover 7 is fixedly mounted
On the clamping disk at the two ends of pressure roller lining 2；Meanwhile, the effect of pressure roller lining 2 is support and clamping flexible compression roller 5, it is ensured that its
Relative linear displacement and angular displacement do not occur during work.
As shown in fig. 6, flexible compression roller 5 can be solid construction can also it is internal be hollow inflatable structure, filled when for inside
During depressed structure, the one side of flexible compression roller 5 has air-filled pore, and being shaped as whole flexible compression roller is cylindric.Flexible compression roller 5 is by rubber
The nonmetallic materials that there is favorable elasticity to deform for glue material, resin material or plastics etc. are prepared from, it is ensured that can be born certain
Pressure, while having good deformability under force；Operationally, central shaft 4 is kept for whole flexible compression roller mechanism
Transfixion, pressure roller lining 2, flexible compression roller 5, deep groove ball bearing 6 and bearing (ball) cover 7 are common to do revolution fortune relative to central shaft 4
It is dynamic, meanwhile, flexible compression roller 5 is in contact with free form surface core 8.
A kind of prepreg tape laying track planing method of the free form surface class part based on flexible compression roller, including following step
Suddenly：
Step 1：According to the flexible compression roller 5 in the forming requirements setting prepreg tape laying device for presoaking belt composite and certainly
Contact value between curved surface core 8, preimpregnation belt composite forming requirements refer mainly to prepreg tape Coating combination it is strong
Degree, fiber volume fraction and porosity；
Step 2：According to step 1 set contact value, measurement the contact effect under flexible compression roller 5 with freely
Contact width value between curved surface core 8；
Specific measuring method：Flexible compression roller 5 is close to the direction of free form surface core 8, by being arranged on free form surface
The actual contact value between pressure sensor measurement flexible compression roller 5 and free form surface core 8 on core 8, when measuring
Actual contact value it is equal with the contact value set in step 1 when, stop flexible compression roller 5 to free form surface core 8
The movement in direction simultaneously keeps this state constant, and the two ends of flexible compression roller 5 and the contact arc length of free form surface core 8 are marked with color pencil
Point position, as shown in fig. 7, using the length of straightway between vernier caliper measurement contact arc length two-end-point, as flexible compression roller again
Contact width value between free form surface core 8.
Step 3：Set the initial path of the prepreg tape laying track of free form surface class part, specific method：To be spread
The free form surface core put two it is long it is any in one it is long while boundary line as initial path.
Step 4：The contact width value and free form surface of flexible compression roller 5 and free form surface core 8 according to determined by step 2
The initial path of the prepreg tape laying track of class part, it is determined that laying the offset or dish and biased direction in path next time.
Wherein, the determination of biased direction：Biased direction should be perpendicular to initial path, and towards mutually deviating from initial path
Direction；
The determination of offset or dish：The offset or dish of lay should be less than the contact between flexible compression roller 5 and free form surface core 8
Width value, and every time lay when offset or dish should be equal；
Step 5：The prepreg tape according to used in the contact width value between flexible compression roller 5 and free form surface core 8 determines lay
Width：The width of selected prepreg tape should be equal to the offset or dish set by step 4.
Step 6：Prepreg tape is wound on flexible compression roller 5, and by prepreg tape laying device according to the upper first step~5th
Step is laid, and to ensure that the edge line of flexible compression roller 5 is overlapped with the path of planning all the time when laying, and lay each time
When, the offset or dish of lay should keep constant；Until the complete paving of prepreg tape is untill free form surface mandrel surface.
Step 7：The step of the first step~the 6th is repeated, until the lay number of plies required by meeting.
Beneficial effect：
The present invention is adopted by laying making rational planning for for path during the prepreg tape placement process to free form surface class part
The paving of prepreg tape is carried out with flexible compression roller, the prepreg tape that can be well adapted for free form surface class part is laid, and is solved certainly
Rare problem is laid by curved surface class part prepreg tape.Simultaneously by the contact between flexible compression roller and free form surface core
The adjustment of value, can produce different pressure rollers and core contact width, to adapt to the lay of different in width prepreg tape, moreover it is possible to play
Free form surface class part prepreg tape is improved to lay precision and lay efficiency.
Embodiment
Step 1：The contact value between flexible compression roller and free form surface core is set first as 100N, and flexible compression roller fills
Atmospheric pressure is set as 1MPa；When the blowing pressure in flexible compression roller is bigger, in same contact condition, flexible compression roller with
The contact width of free form surface core is just small；
Step 2：The flexible compression roller contact value set according to step 1, the measurement lower flexible compression roller of contact effect with
Contact width between free form surface core.
Specific measuring method is that flexible compression roller is close to free form surface core direction, measures soft by pressure sensor
Property pressure roller and free form surface core between contact value, when contact value and setting flexible compression roller contact value phase
Deng when, stop flexible compression roller the movement to core direction simultaneously keep this state constant, with color pencil mark flexible compression roller with from
By the two-end-point position of curved surface core contact arc length, then with the length of straightway between vernier caliper measurement contact arc length two-end-point
Degree, as the contact width value between flexible compression roller and free form surface core.Finally give flexible compression roller 5 and free form surface core
Contact width value 22.5mm between 8.
Step 3：Determine the initial path of the prepreg tape laying track of free form surface class part：With the left length of free form surface core
Boundary line is used as initial path.
Step 4：The contact width value of flexible compression roller 5 and free form surface core 8, is determined next according to determined by step 2
Strip laying path and the offset or dish and biased direction of initial path.
Biased direction is the direction with left long boundary line vertical-right, and offset or dish is 20mm.
Step 5：Flexible compression roller is laid since the starting point of initial path along initial path, protected when laying
The side edge line of card flexible compression roller is overlapped with the path of planning all the time.
Step 6：The prepreg tape according to used in the contact width value between flexible compression roller and free form surface core 8 determines lay
Width：The width for selecting prepreg tape is 20mm.
Step 7：Prepreg tape is wound on flexible compression roller 5, laid according to 1~step 6 of above-mentioned steps, until prepreg tape
Complete paving is untill free form surface mandrel surface.
Step 8：1~step of repeat step:7, until the lay number of plies required by meeting.
Claims (9)
1. a kind of prepreg tape laying track planing method of the free form surface class part based on flexible compression roller, it is characterised in that bag
Include following steps：
The first step, the flexible compression roller in setting prepreg tape laying device is required according to the lay of the prepreg tape of free form surface class part
(5) the contact value between free form surface core；
Second step, the contact value set according to the first step, the contact between measurement flexible compression roller (5) and free form surface core
Width value；
3rd step, sets the initial path of the prepreg tape laying track of free form surface class part；
4th step, the initial road of the prepreg tape laying track of contact width value and free form surface class part according to obtained by second step
Footpath, it is determined that laying the offset or dish and biased direction in path next time；
5th step, the contact width value according to obtained by second step, it is determined that laying the width of prepreg tape used；
6th step, prepreg tape is wound on flexible compression roller (5), and by prepreg tape laying device according to the above-mentioned first step~5th
Step is laid, until the complete paving of prepreg tape is untill free form surface mandrel surface；
7th step, repeats the step of the first step~the 6th, until the lay number of plies required by meeting.
2. a kind of prepreg tape laying track planning of free form surface class part based on flexible compression roller according to claim 1
Method, it is characterised in that：In second step, the measuring method of contact width value is specially：By flexible compression roller (5) to free form surface core
Mould direction is close, the actual contact value between measurement flexible compression roller (5) and free form surface core, when what is measured actually connects
When pressing force value and setting contact value is equal in the first step, stop shifting of the flexible compression roller (5) to free form surface core direction
Move and keep this state constant, mark flexible compression roller (5) and the two-end-point position of free form surface core contact arc length, then measure and connect
The length of straightway, as the contact width value between flexible compression roller (5) and free form surface core between tactile arc length two-end-point.
3. a kind of prepreg tape laying track planning of free form surface class part based on flexible compression roller according to claim 1
Method, it is characterised in that：In 3rd step, the initial path of free form surface prepreg tape laying track be specifically with to be laid from
By curved surface core two it is long it is any in one it is long while boundary line be used as initial path.
4. a kind of prepreg tape laying track planning of free form surface class part based on flexible compression roller according to claim 1
Method, it is characterised in that：In 4th step, the determination of biased direction：Biased direction should perpendicular to initial path, and towards with it is initial
The direction that path mutually deviates from；The determination of offset or dish：The offset or dish of lay should be less than flexible compression roller (5) and free form surface core
Between contact width value, and every time lay when offset or dish should be equal.
5. a kind of prepreg tape laying track planning of free form surface class part based on flexible compression roller according to claim 1
Method, it is characterised in that：In 5th step, the width of prepreg tape used is laid equal to the offset or dish obtained by the 4th step.
6. a kind of prepreg tape laying track planning of free form surface class part based on flexible compression roller according to claim 1
Method, it is characterised in that：In 6th step, the road of the side edge line of flexible compression roller (5) all the time with planning is ensured when laying
Footpath is overlapped, and when laying each time, the offset or dish of lay should keep constant.
7. a kind of prepreg tape of free form surface class part based on flexible compression roller according to claim any one of 1-6 is laid
Method for planning track, it is characterised in that：The flexible compression roller (5) is the solid or hollow inflatable formula structure of flexible deformation.
8. a kind of prepreg tape laying track planning of free form surface class part based on flexible compression roller according to claim 7
Method, it is characterised in that：The prepreg tape laying device also includes the first pressing roller holder (1), pressure roller lining (2), the second pressure roller
Support (3) and central shaft (4), wherein, pressure roller lining (2) is sleeved on central shaft (4), and flexible compression roller (5) is sleeved on pressure roller lining
On cylinder (2), the second pressing roller holder (3) is provided with two, and its one end is fixed on the two ends of central shaft (4), the other end and first
Pressing roller holder (1) is by being fixedly connected.
9. a kind of prepreg tape laying track planning of free form surface class part based on flexible compression roller according to claim 8
Method, it is characterised in that：Pressure roller lining (2) is fixed peace on the hollow cylinder structure that two ends are provided with clamping disk, clamping disk
Equipped with bearing (ball) cover (7), bearing (ball) cover (7) is connected with the deep groove ball bearing (6) being sleeved on central shaft (4) shaft shoulder.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710354092.7A CN107081918B (en) | 2017-05-18 | 2017-05-18 | A kind of prepreg tape laying track planing method of the free form surface class part based on flexible compression roller |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710354092.7A CN107081918B (en) | 2017-05-18 | 2017-05-18 | A kind of prepreg tape laying track planing method of the free form surface class part based on flexible compression roller |
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| CN107081918A true CN107081918A (en) | 2017-08-22 |
| CN107081918B CN107081918B (en) | 2019-08-13 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110356019A (en) * | 2019-06-18 | 2019-10-22 | 西安交通大学 | A kind of large deformation flexible pressing device for automatic fiber placement |
| CN110962372A (en) * | 2019-10-30 | 2020-04-07 | 航天材料及工艺研究所 | Flexible compression roller suitable for automatic inclined laying forming of special-shaped structure |
| CN111688234A (en) * | 2020-06-23 | 2020-09-22 | 中国航空制造技术研究院 | Combined die for automatic composite material laying process and working method |
| CN111766343A (en) * | 2020-07-13 | 2020-10-13 | 长沙理工大学 | Method for judging spreadability of curved surface automatic laying prepreg tape |
| CN113276448A (en) * | 2021-06-10 | 2021-08-20 | 长沙理工大学 | Automatic laying method |
| CN114669445A (en) * | 2022-03-08 | 2022-06-28 | 上海交通大学 | Flexible rolling forming device for micro-nano structure coating |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110356019A (en) * | 2019-06-18 | 2019-10-22 | 西安交通大学 | A kind of large deformation flexible pressing device for automatic fiber placement |
| CN110962372A (en) * | 2019-10-30 | 2020-04-07 | 航天材料及工艺研究所 | Flexible compression roller suitable for automatic inclined laying forming of special-shaped structure |
| CN111688234A (en) * | 2020-06-23 | 2020-09-22 | 中国航空制造技术研究院 | Combined die for automatic composite material laying process and working method |
| CN111766343A (en) * | 2020-07-13 | 2020-10-13 | 长沙理工大学 | Method for judging spreadability of curved surface automatic laying prepreg tape |
| CN111766343B (en) * | 2020-07-13 | 2022-09-13 | 长沙理工大学 | Method for judging spreadability of curved surface automatic laying prepreg tape |
| CN113276448A (en) * | 2021-06-10 | 2021-08-20 | 长沙理工大学 | Automatic laying method |
| CN114669445A (en) * | 2022-03-08 | 2022-06-28 | 上海交通大学 | Flexible rolling forming device for micro-nano structure coating |
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| Publication number | Publication date |
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| CN107081918B (en) | 2019-08-13 |
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