US20220016856A1 - Customized composite debulking caul - Google Patents
Customized composite debulking caul Download PDFInfo
- Publication number
- US20220016856A1 US20220016856A1 US16/930,438 US202016930438A US2022016856A1 US 20220016856 A1 US20220016856 A1 US 20220016856A1 US 202016930438 A US202016930438 A US 202016930438A US 2022016856 A1 US2022016856 A1 US 2022016856A1
- Authority
- US
- United States
- Prior art keywords
- caul
- composite part
- holes
- porous sheet
- debulking
- 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.)
- Abandoned
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y80/00—Products made by additive manufacturing
-
- 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
- B29C70/544—Details of vacuum bags, e.g. materials or shape
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
- B29C33/3842—Manufacturing moulds, e.g. shaping the mould surface by machining
-
- 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
- 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
- B29C70/549—Details of caul plates, e.g. materials or shape
-
- 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
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2819/00—Use of rubber not provided for in a single one of main groups B29K2807/00 - B29K2811/00
Abstract
A caul for debulking a composite part broadly includes opposing first and second surfaces, a plurality of through-holes, and a coating. The first surface may have a curvature complementary to a shape of the composite part. The through-holes pass through the caul from the first surface to the second surface. The coating may be a chemically inert material to ensure the caul does not affect the composite part. The caul is configured to be positioned against the composite part for debulking. The caul may be made out of silicone rubber or any other suitable material and may be reusable.
Description
- This invention was made with Government support under Contract No.: DE-NA-0002839 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention.
- Composite part debulking requires laying up release film directly onto a surface of a composite part, enclosing the composite part and the release film in a vacuum bag, and removing air from the vacuum bag to draw trapped air out of the composite part. Laying up the release film is time consuming and requires expertise and attention to detail. A poor layup often causes wrinkles to form on the surface of the composite part. Mislaid and used release film must be discarded and new release film must be used for subsequent layups.
- Embodiments of the invention solve the above-mentioned problems and other problems and provide a distinct advancement in the art of composite part debulking. More particularly, the invention provides a reusable composite part debulking caul that eliminates the need for laying up release film directly onto a surface of the composite part.
- An embodiment of the invention is a composite part debulking caul broadly comprising opposing first and second surfaces, a number of through-holes, and a coating. The caul may be made of silicone rubber or any other moldable, shapeable material. Alternatively, the caul may be made of machined or additively manufactured material.
- The first surface may have a curvature complementary to a shape of a composite part being debulked. The curvature may follow a simple shape (e.g., a constant radius arc, a parabola, a hyperbola, or the like) or complex shapes such as splines, airfoils, or combinations of simple shapes. The curvature may also be defined in a single plane or may be complex such as saddle geometry.
- The second surface is opposite the first surface. Unlike the first surface, the second surface does not need to have a particular geometry. For example, the second surface may be rectangular or a simplified approximation of the curvature of the first surface. Nonetheless, the second surface may at least partially follow the curvature of the first surface such that the caul has a substantially uniform thickness.
- The through-holes pass through the caul from the first surface to the second surface. The through-holes may be punctures, perforations, spaces between webbing, material voids, and the like. The through-holes may be evenly spaced from each other to allow air to be drawn evenly from the composite part.
- The coating covers at least one of the first surface and second surface. The coating may be a chemically inert material to ensure the caul does not affect the composite part or any other objects with which the caul may come into contact. The coating may also protect the first surface and/or the second surface from damage.
- In use, the caul may be shaped to be complementary to a shape of the composite part. To that end, material may be removed from the caul via subtractive manufacturing (e.g., milling, cutting, carving, or the like), added to the caul via additive manufacturing (e.g., 3D printing, sintering, melting, or the like) or shaped via molding (e.g., high pressure molding, injection molding, or the like).
- The through-holes may be formed in the caul. For example, the caul may be punctured or perforated via a hole-forming tool. Alternatively, the through-holes may be formed as the caul is shaped.
- The coating may then be applied to the first and second surfaces of the caul. For example, the caul may be dipped in a coating material, or the coating material may be sprayed onto the caul.
- The composite part may then be placed on a tool. At this stage, the composite part may be laid up layer by layer on the tool or may be transferred from a layup tool.
- The caul may then be positioned on the composite part such that the first surface contacts the contoured surface of the composite part. The caul may be pressed against the composite part to eliminate gaps between the caul and the composite part except for the airways formed by the through-holes.
- A porous sheet may then be positioned on the caul opposite the composite part such that the porous sheet contacts the second surface of the caul. The porous sheet may be pressed against the caul to eliminate gaps between the porous sheet and the composite part except for airways formed by the through-holes and pores in the porous sheet.
- The caul, porous sheet, and the composite part may then be enclosed in a vacuum bag. This may include sealing the vacuum bag except for an outlet for removing air from a chamber formed by the vacuum bag.
- Air may be then be removed from the chamber of the vacuum bag via a vacuum pump connected to the outlet. The vacuum created by the vacuum pump draws air from the composite part through the through-holes of the caul and the pores of the porous sheet. In this way, air trapped between layers of the composite part is removed from the composite part, resulting in a more consistent and structurally sound composite lamination.
- The above-described caul provides several advantages. For example, the caul mistake-proofs debulking, thereby reducing or eliminating wrinkles in the composite part resulting from poor or inaccurate conventional bagging techniques. The caul reduces the expertise and amount of attention to detail required for debulking. The caul significantly reduces preparation time and is reusable, thereby eliminating the need to apply release fabric to identical composite part mock-ups in preparation for debulking. The caul may have well-distributed through-holes, ensuring even debulking. The chemically inert coating prevents the caul from chemically affecting the composite part.
- This summary is provided to introduce a selection of concepts in a simplified form that are further described below in the detailed description. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter. Other aspects and advantages of the present invention will be apparent from the following detailed description of the embodiments and the accompanying drawing figures.
- Embodiments of the present invention are described in detail below with reference to the attached drawing figures, wherein:
-
FIG. 1 is a perspective view of a customized debulking caul constructed in accordance with an embodiment of the invention and shown as part of a debulking setup; -
FIG. 2 is a perspective view of the caul ofFIG. 1 ; -
FIG. 3 is a cutaway elevation view of the caul and debulking setup ofFIG. 1 ; -
FIG. 4 is a flow diagram showing certain method steps for debulking a composite part; and -
FIG. 5 is a cutaway elevation view of a composite part debulking system constructed in accordance with another embodiment of the invention. - The drawing figures do not limit the present invention to the specific embodiments disclosed and described herein. The drawings are not necessarily to scale, emphasis instead being placed upon clearly illustrating the principles of the invention.
- The following detailed description of the invention references the accompanying drawings that illustrate specific embodiments in which the invention can be practiced. The embodiments are intended to describe aspects of the invention in sufficient detail to enable those skilled in the art to practice the invention. Other embodiments can be utilized and changes can be made without departing from the scope of the present invention. The following detailed description is, therefore, not to be taken in a limiting sense. The scope of the present invention is defined only by the appended claims, along with the full scope of equivalents to which such claims are entitled.
- In this description, references to “one embodiment”, “an embodiment”, or “embodiments” mean that the feature or features being referred to are included in at least one embodiment of the technology. Separate references to “one embodiment”, “an embodiment”, or “embodiments” in this description do not necessarily refer to the same embodiment and are also not mutually exclusive unless so stated and/or except as will be readily apparent to those skilled in the art from the description. For example, a feature, structure, act, etc. described in one embodiment may also be included in other embodiments, but is not necessarily included. Thus, the current technology can include a variety of combinations and/or integrations of the embodiments described herein.
- Turning to
FIGS. 1 and 2 , acaul 10 for debulking a composite part in accordance with an embodiment of the invention is illustrated. Thecaul 10 broadly comprises opposing first andsecond surfaces 12, 14, a plurality of through-holes 16, and a coating. Thecaul 10 is shown pressed against acomposite part 100 for debulking. Thecaul 10 may be made out of silicone rubber or any other suitable material and may be reusable. In one embodiment, thecaul 10 may be raw silicone rubber EL-80 produced by Torr Technologies. - The first surface 12 may have a curvature complementary to a shape of the
composite part 100. The curvature may follow a simple shape (e.g., a constant radius arc, a parabola, a hyperbola, or the like) or complex shapes such as splines, airfoils, or combinations of simple shapes. The curvature may also be defined in a single plane or may be complex such as saddle geometry. - The
second surface 14 is opposite the first surface 12. Unlike the first surface 12, thesecond surface 14 does not need to have a particular geometry. For example, thesecond surface 14 may be rectangular or a simplified approximation of the curvature of the first surface 12. Nonetheless, thesecond surface 14 may at least partially follow the curvature of the first surface 12 such that thecaul 10 has a substantially uniform thickness. - The through-
holes 16 pass through thecaul 10 from the first surface 12 to thesecond surface 14. The through-holes 16 may be punctures, perforations, spaces between webbing, material voids, and the like. The through-holes 16 may be evenly spaced from each other to allow air to be drawn evenly from thecomposite part 100. - The coating covers at least one of the first surface 12 and
second surface 14. The coating may be a chemically inert material to ensure thecaul 10 does not affect thecomposite part 100 or any other objects with which thecaul 10 may come into contact. The coating may be Slick Sil produced by Surface Solutions Group. The coating may also protect the first surface 12 and/or the second surface from damage. That is, the coating, if damage, may be repaired more easily than thecaul 10. - Turning to
FIG. 3 , and with reference toFIGS. 1 and 2 , a method of making thecaul 10 and debulking thecomposite part 100 will now be described in detail. First, the first surface 12 of thecaul 10 may be shaped to be complementary to a shape of thecomposite part 100, as shown inblock 200. To that end, material may be removed from thecaul 10 via subtractive manufacturing (e.g., milling, cutting, carving, or the like), added to the caul via additive manufacturing (e.g., 3D printing, sintering, melting, or the like) or shaped via molding (e.g., high pressure molding, injection molding, or the like). - The through-
holes 16 may be formed in thecaul 10, as shown inblock 202. For example, thecaul 10 may be punctured or perforated via a hole-forming tool. Alternatively, the through-holes 16 may be formed as thecaul 10 is shaped. In the case of additive manufacturing, material may be deposited in a pattern leaving material voids. In the case of molding, the through-holes 16 may be formed as a natural consequence of manipulating the material. For example, the material could be heated and/or pressurized to form the through-holes 16. A supplementary material could also be added or mixed with the material such that manipulation or removal of the supplementary material forms the through-holes 16. - The coating may then be applied to the first and
second surfaces 12, 14 of thecaul 10, as shown inblock 204. For example, thecaul 10 may be dipped in a coating material, or the coating material may be sprayed onto thecaul 10. - The
composite part 100 may then be placed on atool 102 with acontoured surface 104 being exposed opposite thetool 102, as shown inblock 206. At this stage, thecomposite part 100 may be laid up layer by layer on thetool 102 or may be transferred from a layup tool. - The
caul 10 may then be positioned on thecomposite part 100 such that the first surface 12 contacts the contouredsurface 104 of thecomposite part 100, as shown inblock 208. Thecaul 10 may be pressed against the composite part to eliminate gaps between thecaul 10 and thecomposite part 100 except for the airways formed by the through-holes 16. - A
porous sheet 206 may then be positioned on thecaul 10 opposite thecomposite part 100 such that theporous sheet 106 contacts thesecond surface 14 of thecaul 10, as shown inblock 210. Theporous sheet 106 may be pressed against thecaul 10 to eliminate gaps between theporous sheet 106 and thecomposite part 100 except for airways formed by the through-holes 16 andpores 108 in theporous sheet 106. - The
caul 10,porous sheet 106, and thecomposite part 100 may then be enclosed in avacuum bag 110, as shown inFIG. 3 and block 212 ofFIG. 4 . This may include sealing thevacuum bag 110 except for anoutlet 112 for removing air from achamber 114 formed by thevacuum bag 110. - Air may be then be removed from the
chamber 112 of thevacuum bag 110 via avacuum pump 116 connected to theoutlet 112, as shown in block 214 (see alsoFIG. 5 for a vacuum-induced vacuum bag). The vacuum created by thevacuum pump 116 draws air from thecomposite part 100 through the through-holes 16 of thecaul 10 and thepores 108 of theporous sheet 106. In this way, air trapped in thecomposite part 100 is debulked, resulting in a more consistent and structurally sound composite lamination. - The above-described
caul 10 provides several advantages. For example, thecaul 10 mistake-proofs debulking, thereby reducing or eliminating wrinkles in thecomposite part 100 resulting from poor or inaccurate conventional bagging techniques. Thecaul 10 reduces the expertise and amount of attention to detail required for debulking. Thecaul 10 significantly reduces preparation time and is reusable, thereby eliminating the need to apply release fabric to identical composite part mock-ups in preparation for debulking. Thecaul 10 may have well-distributed through-holes 16, ensuring even debulking. The chemically inert coating prevents thecaul 10 from chemically affecting thecomposite part 100. - Turning to
FIG. 5 , asystem 300 for debulking a composite part in accordance with another embodiment of the invention is illustrated. Thesystem 300 broadly comprises atool 302, acaul 304, aporous sheet 306, avacuum bag 308, and avacuum pump 310. - The
tool 302 may be a base structure on which the composite part is placed. Thetool 302 may be contoured to be complementary to an underside shape of the resulting composite part. Thetool 302 may be a mandrel, jig, mold, or the like. - The
caul 304 broadly comprises opposing first andsecond surfaces holes 316, and a coating. Thecaul 304 is shown pressed againstcomposite part 400 in a debulking procedure. Thecaul 304 may be made out of silicone rubber or any other suitable material. In one embodiment, thecaul 304 may be raw silicone rubber EL-80 produced by Torr Technologies. - The
first surface 312 may have a curvature complementary to a shape of thecomposite part 400. The curvature may follow a simple shape (e.g., a constant radius arc, a parabola, a hyperbola, or the like) or complex shapes such as splines, airfoils, or combinations of simple shapes. The curvature may also be defined in a single plane or may be complex such as saddle geometry. - The
second surface 314 is opposite thefirst surface 312. Unlike thefirst surface 312, thesecond surface 314 does not need to have a particular geometry. For example, thesecond surface 314 may be rectangular or a simplified approximation of the curvature of thefirst surface 312. Nonetheless, thesecond surface 314 may at least partially follow the curvature of thefirst surface 312 such that thecaul 304 has a substantially uniform thickness. - The through-
holes 316 pass through thecaul 304 from thefirst surface 312 to thesecond surface 314. The through-holes 316 may be punctures, perforations, spaces between webbing, material voids, and the like. The through-holes 316 may be evenly spaced from each other to allow air to be drawn evenly from thecomposite part 400. - The coating covers at least one of the
first surface 312 andsecond surface 314. The coating may be a chemically inert material to ensure thecaul 304 does not affect thecomposite part 400 or any other objects with which thecaul 304 may come into contact. The coating may be Slick Sil produced by Surface Solutions Group. The coating may also protect thefirst surface 312 and/or the second surface from damage. That is, the coating, if damage, may be repaired more easily than thecaul 304. - The
porous sheet 306 includes a plurality ofpores 320 and may be woven fabric, polytetrafluoroethylene (i.e., Teflon™), nylon, or other porous release fabric material (e.g., Peel Ply produced by Airtech International). Theporous sheet 306 may be configured to be positioned on thesecond surface 314 of thecaul 304. - The
vacuum bag 308 may be an airtight flexible enclosure including anopening 322. Thevacuum bag 308 may be configured to enclose and form a vacuum around thetool 302, thecaul 304, and theporous sheet 306. - The
vacuum pump 310 may be connected to thevacuum bag 308 via theopening 322. Thevacuum pump 310 may be configured to draw air from within thevacuum bag 308. In one embodiment, thevacuum pump 310 may be configured to draw air until a specific vacuum pressure is reached. - Although the invention has been described with reference to the embodiments illustrated in the attached drawing figures, it is noted that equivalents may be employed and substitutions made herein without departing from the scope of the invention as recited in the claims.
- Having thus described various embodiments of the invention, what is claimed as new and desired to be protected by Letters Patent includes the following:
Claims (20)
1. A caul for debulking a composite part, the caul comprising:
a first surface having a curvature complementary to a shape of the composite part;
a second surface opposite the first surface; and
a plurality of through-holes extending from the first surface to the second surface to allow air to flow from the first surface to the second surface during debulking.
2. The caul of claim 1 , the through-holes being perforations.
3. The caul of claim 1 , the through-holes being evenly spaced from each other.
4. The caul of claim 1 , the caul being coated with a chemically inert material.
5. The caul of claim 1 , the caul being made of silicone rubber.
6. The caul of claim 1 , the caul being reusable.
7. A method of debulking a composite part, the method comprising the steps of:
shaping a first surface of a caul to be complementary to a shape of the composite part;
forming through-holes in the caul such that he through-holes extend from the first surface to a second surface opposite the first surface;
positioning the caul on the composite part such that the first surface of the caul contacts a surface of the composite part;
positioning a porous sheet on the caul such that the porous sheet contacts the second surface of the caul;
enclosing the caul, the porous sheet, and the composite part in a vacuum bag; and
drawing air from the composite part through through-holes of the caul and the porous sheet via a vacuum pump.
8. The method of claim 7 , further comprising the step of coating the caul with a chemically inert material.
9. The method of claim 7 , the step of shaping the first surface of the caul including removing material.
10. The method of claim 7 , the step of shaping the first surface of the caul including adding material via additive manufacturing.
11. The method of claim 7 , the step of forming through-holes including evenly spacing the through-holes from each other.
12. The method of claim 7 , the step of forming the through-holes including perforating the caul.
13. A system for debulking a composite part, the system comprising:
a caul comprising:
a first surface having a curvature complementary to a shape of the composite part;
a second surface opposite the first surface; and
a plurality of through-holes extending from the first surface to the second surface to allow air to flow through the caul from the first surface to the second surface during debulking;
a porous sheet adjacent the second surface, the porous sheet configured to the air to flow out of the plurality of through-holes;
a vacuum bag enclosing the caul, the porous sheet, and the composite part; and
a vacuum pump configured to draw the air from the composite part, through the through-holes of the caul, and through the porous sheet.
14. The system of claim 13 , the through-holes being perforations.
15. The system of claim 13 , the through-holes being evenly spaced from each other.
16. The system of claim 13 , the caul being coated with a chemically inert material.
17. The system of claim 13 , the caul being made of silicone rubber.
18. The system of claim 13 , the caul being reusable.
19. The system of claim 13 , the porous sheet being release film.
20. The system of claim 13 , further comprising a tool configured to be positioned adjacent the composite part, the caul being configured to be positioned adjacent the composite part opposite the tool.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16/930,438 US20220016856A1 (en) | 2020-07-16 | 2020-07-16 | Customized composite debulking caul |
US17/941,590 US20230085289A1 (en) | 2020-07-16 | 2022-09-09 | Customized composite debulking caul |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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US16/930,438 US20220016856A1 (en) | 2020-07-16 | 2020-07-16 | Customized composite debulking caul |
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US17/941,590 Division US20230085289A1 (en) | 2020-07-16 | 2022-09-09 | Customized composite debulking caul |
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US20220016856A1 true US20220016856A1 (en) | 2022-01-20 |
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US16/930,438 Abandoned US20220016856A1 (en) | 2020-07-16 | 2020-07-16 | Customized composite debulking caul |
US17/941,590 Pending US20230085289A1 (en) | 2020-07-16 | 2022-09-09 | Customized composite debulking caul |
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US17/941,590 Pending US20230085289A1 (en) | 2020-07-16 | 2022-09-09 | Customized composite debulking caul |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2023180818A (en) * | 2022-06-10 | 2023-12-21 | 三菱重工業株式会社 | Manufacturing device and manufacturing method for composite material structure |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8632653B2 (en) * | 2005-05-03 | 2014-01-21 | The Boeing Company | Method of manufacturing curved composite structural elements |
US20080060755A1 (en) * | 2006-09-13 | 2008-03-13 | General Electric Corporation | composite corner and method for making composite corner |
US9682514B2 (en) * | 2010-06-25 | 2017-06-20 | The Boeing Company | Method of manufacturing resin infused composite parts using a perforated caul sheet |
-
2020
- 2020-07-16 US US16/930,438 patent/US20220016856A1/en not_active Abandoned
-
2022
- 2022-09-09 US US17/941,590 patent/US20230085289A1/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2023180818A (en) * | 2022-06-10 | 2023-12-21 | 三菱重工業株式会社 | Manufacturing device and manufacturing method for composite material structure |
JP7447185B2 (en) | 2022-06-10 | 2024-03-11 | 三菱重工業株式会社 | Composite material structure manufacturing device and composite material structure manufacturing method |
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US20230085289A1 (en) | 2023-03-16 |
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