CN108943545A - A kind of composite material boring method - Google Patents
A kind of composite material boring method Download PDFInfo
- Publication number
- CN108943545A CN108943545A CN201810763532.9A CN201810763532A CN108943545A CN 108943545 A CN108943545 A CN 108943545A CN 201810763532 A CN201810763532 A CN 201810763532A CN 108943545 A CN108943545 A CN 108943545A
- Authority
- CN
- China
- Prior art keywords
- tetrafluoro
- stick
- tetrafluoro stick
- location hole
- mold
- 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.)
- Granted
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 12
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000004744 fabric Substances 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 16
- 238000005553 drilling Methods 0.000 claims abstract description 12
- 238000000465 moulding Methods 0.000 claims abstract description 12
- 239000003292 glue Substances 0.000 claims abstract description 11
- 210000001161 mammalian embryo Anatomy 0.000 claims abstract description 11
- 238000011010 flushing procedure Methods 0.000 claims abstract description 4
- 239000011521 glass Substances 0.000 claims abstract description 4
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000007731 hot pressing Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/16—Perforating by tool or tools of the drill type
-
- 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
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Moulding By Coating Moulds (AREA)
- Laminated Bodies (AREA)
Abstract
The present invention provides a kind of composite material boring method, comprising the following steps: mold prepares: 1) according to the location hole size of molding die, being equipped with tetrafluoro stick, and tetrafluoro stick is processed into structure identical with location hole；2) tetrafluoro stick is inserted into positioning hole and be truncated, truncation surface is higher by mold tooling face；3) the tetrafluoro stick for being higher by mold tooling face is tapped, tetrafluoro stick and location hole fitting tight are made；4) tetrafluoro stick the raised area is scabbled, tetrafluoro stick end is made to keep flushing with mold tooling face；5) it cuts one piece of band glue release cloth and glass cloth prepreg is sequentially coated on tetrafluoro stick, and be compacted；Molding: placing embryo material on mold, then hot-forming；Drilling: after die sinking, a side of the self-forming material far from tetrafluoro stick is to other side drilling and forming hole；Demoulding.Compared with prior art, by fixing tetrafluoro stick on the location hole of mold, situations such as can drilling for the later period and support is provided, bottom hole and bore edges is avoided to be layered tearing, the precision of product is provided.
Description
Technical field
The present invention relates to carbon fibre composite technical field, a kind of specifically composite material boring method.
Background technique
During traditional composite molding post-processing drilling, it is easy that the edge of hole wall and hole is caused to be layered.It is lossless
After detection and appearance detection cannot pass through acceptance criteria.
Summary of the invention
The technical problem to be solved by the present invention is in the prior art, during composite molding drilling, drilling region
Bottom easily leads to hole wall and bore edges is layered the problem of tearing without support.
The present invention solves above-mentioned technical problem by the following technical programs:
A kind of composite material boring method, comprising the following steps:
Mold prepares:
1) according to the location hole size of molding die, it is equipped with tetrafluoro stick, and tetrafluoro stick is processed into identical with location hole
Structure；
2) tetrafluoro stick is inserted into positioning hole, and be truncated, tetrafluoro stick truncation surface is higher by mold tooling face 2mm~5mm；
3) the tetrafluoro stick for being higher by mold tooling face is tapped, tetrafluoro stick and location hole fitting tight are made；
4) tetrafluoro stick the raised area is scabbled, tetrafluoro stick end is made to keep flushing with mold tooling face；
5) the band glue release cloth for cutting one piece of 10mm × 10mm is attached to the covering tetrafluoro stick on die mounting surface；
6) one layer is covered on release cloth and be dimensioned slightly smaller than the glass cloth prepreg with embryo material with resin of release cloth, and press
It is real；
Molding:
Embryo material is placed on mold, it is then hot-forming；
Drilling:
After die sinking, a side of the self-forming material far from tetrafluoro stick is to other side drilling and forming hole；
Demoulding.
Preferably, in step 2), if tetrafluoro stick diameter is less than positioning bore dia, then first winding band glue is demoulded on tetrafluoro stick
Cloth or pressure sensitive adhesive tape guarantee that tetrafluoro stick and location hole are fitted close.
Preferably, in step 5), the side with glue release cloth towards embryo material side is no more than 1mm away from location hole outer diameter.
The present invention has the advantages that
By fixing tetrafluoro stick on the location hole of mold, it can drill for the later period and support is provided, avoid bottom hole and bore edges
Situations such as layering tearing, provide the precision of product.There are pre- allowances after the truncation of tetrafluoro stick improves tetrafluoro stick in case later period hammer is real
With the fitting tight degree of location hole.
Size with glue release cloth and back gauge limit within the set range, to guarantee that the marking will not be left on product.
Specific embodiment
The effect of to make to structure feature of the invention and being reached, has a better understanding and awareness, to preferable
Embodiment detailed description, is described as follows:
A kind of composite material boring method, is related to heat pressing and molding mold, embryo material is put into hot pressing die, pass through hot pressing
Molding.Location hole is offered on the tooling face of mold, location hole bottom hole is tapered section.The following steps are included:
Mold prepares:
1) according to the location hole size of molding die, it is equipped with tetrafluoro stick, and tetrafluoro stick is processed into identical with location hole
Structure；General location hole bottom hole is chamfering, so need one end of tetrafluoro stick carrying out chamfered, i.e., it, will by cutter
One end of tetrafluoro stick is cut, formed with matched tapered section of location hole hole Bottom Shape, in order to which tetrafluoro stick is inserted into hole
Bottom；
2) tetrafluoro stick is inserted into positioning hole, and be truncated, tetrafluoro stick truncation surface is higher by mold tooling face 2mm~5mm；Such as four
Fluorine stick diameter is less than positioning bore dia, then first winding band glue release cloth or the pressure sensitive adhesive tape on tetrafluoro stick, guarantees tetrafluoro stick and determine
Position hole is fitted close；
3) the tetrafluoro stick for being higher by mold tooling face is tapped using wooden or rubber hammer, keeps tetrafluoro stick and location hole further
Fitting tight；
4) tetrafluoro stick the raised area is scabbled, tetrafluoro stick end is made to keep flushing with mold tooling face；
5) the band glue release cloth for cutting one piece of 10mm × 10mm is attached to the covering tetrafluoro stick on die mounting surface；Band glue demoulds
The side of cloth towards embryo material side is no more than 1mm away from location hole outer diameter；
6) one layer is covered on release cloth and be dimensioned slightly smaller than the glass cloth prepreg with embryo material with resin of release cloth, and press
It is real；
Molding:
Embryo material is placed on mold, it is then hot-forming；
Drilling:
After die sinking, a side of the self-forming material far from tetrafluoro stick is to other side drilling and forming hole；In boring procedure, due to material
The location hole of bottom has the support of tetrafluoro stick, it is ensured that bore edges are not stratified or tear.
Demoulding.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and what is described in the above embodiment and the description is only the present invention
Principle, various changes and improvements may be made to the invention without departing from the spirit and scope of the present invention, these variation and
Improvement is both fallen in the range of claimed invention.The present invention claims protection scope by appended claims and its
Equivalent defines.
Claims (3)
1. a kind of composite material boring method, it is characterised in that: the following steps are included:
Mold prepares:
1) according to the location hole size of molding die, it is equipped with tetrafluoro stick, and tetrafluoro stick is processed into structure identical with location hole；
2) tetrafluoro stick is inserted into positioning hole, and be truncated, tetrafluoro stick truncation surface is higher by mold tooling face 2mm~5mm；
3) the tetrafluoro stick for being higher by mold tooling face is tapped, tetrafluoro stick and location hole fitting tight are made；
4) tetrafluoro stick the raised area is scabbled, tetrafluoro stick end is made to keep flushing with mold tooling face；
5) the band glue release cloth for cutting one piece of 10mm × 10mm is attached to the covering tetrafluoro stick on die mounting surface；
6) one layer is covered on release cloth and be dimensioned slightly smaller than the glass cloth prepreg with embryo material with resin of release cloth, and be compacted；
Molding:
Embryo material is placed on mold, it is then hot-forming；
Drilling:
After die sinking, a side of the self-forming material far from tetrafluoro stick is to other side drilling and forming hole；
Demoulding.
2. a kind of composite material boring method according to claim 1, it is characterised in that: in step 2), as tetrafluoro stick is straight
Diameter is less than positioning bore dia, then first winding guarantees that tetrafluoro stick and location hole are tight with glue release cloth or pressure sensitive adhesive tape on tetrafluoro stick
Close fit.
3. a kind of composite material boring method according to claim 1, it is characterised in that: in step 5), band glue release cloth
It is no more than 1mm away from location hole outer diameter towards the side of embryo material side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810763532.9A CN108943545B (en) | 2018-07-12 | 2018-07-12 | Composite material drilling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810763532.9A CN108943545B (en) | 2018-07-12 | 2018-07-12 | Composite material drilling method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108943545A true CN108943545A (en) | 2018-12-07 |
| CN108943545B CN108943545B (en) | 2020-07-14 |
Family
ID=64483023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810763532.9A Active CN108943545B (en) | 2018-07-12 | 2018-07-12 | Composite material drilling method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108943545B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113459199A (en) * | 2021-06-24 | 2021-10-01 | 成都飞机工业（集团）有限责任公司 | Hole making method for porous similar skin part |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0089755A2 (en) * | 1982-03-11 | 1983-09-28 | WESTLAND plc | Method of producing apertures in fibre-reinforced articles such as helicopter rotor blades |
| US6451241B1 (en) * | 1996-02-01 | 2002-09-17 | Mra Systems, Inc. | Method for fabrication of perforated composite |
| WO2003041939A1 (en) * | 2001-11-13 | 2003-05-22 | Bae Systems Plc | A datum system for use in moulding operations |
| CN104999514A (en) * | 2014-04-21 | 2015-10-28 | 哈尔滨飞机工业集团有限责任公司 | Drilling method for structure assemblage of carbon fiber composite material |
| CN105666578A (en) * | 2016-03-12 | 2016-06-15 | 安徽佳力奇航天碳纤维有限公司 | Distributing and drilling device for carbon fiber composite material |
| CN105729834A (en) * | 2016-02-23 | 2016-07-06 | 哈尔滨飞机工业集团有限责任公司 | Production method for assembling hole of composite material part |
-
2018
- 2018-07-12 CN CN201810763532.9A patent/CN108943545B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0089755A2 (en) * | 1982-03-11 | 1983-09-28 | WESTLAND plc | Method of producing apertures in fibre-reinforced articles such as helicopter rotor blades |
| US6451241B1 (en) * | 1996-02-01 | 2002-09-17 | Mra Systems, Inc. | Method for fabrication of perforated composite |
| WO2003041939A1 (en) * | 2001-11-13 | 2003-05-22 | Bae Systems Plc | A datum system for use in moulding operations |
| CN104999514A (en) * | 2014-04-21 | 2015-10-28 | 哈尔滨飞机工业集团有限责任公司 | Drilling method for structure assemblage of carbon fiber composite material |
| CN105729834A (en) * | 2016-02-23 | 2016-07-06 | 哈尔滨飞机工业集团有限责任公司 | Production method for assembling hole of composite material part |
| CN105666578A (en) * | 2016-03-12 | 2016-06-15 | 安徽佳力奇航天碳纤维有限公司 | Distributing and drilling device for carbon fiber composite material |
Non-Patent Citations (1)
| Title |
|---|
| 黄家康，岳红军，董永祺主编: "《复合材料成型技术》", 31 January 1999, 化学工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113459199A (en) * | 2021-06-24 | 2021-10-01 | 成都飞机工业（集团）有限责任公司 | Hole making method for porous similar skin part |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108943545B (en) | 2020-07-14 |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 234000 Chaoyang Road 169, Suzhou High-tech Industrial Park, Anhui Province Patentee after: Anhui jialiqi Advanced Composite Technology Co.,Ltd. Address before: 234000 Chaoyang Road 169, Suzhou High-tech Industrial Park, Anhui Province Patentee before: ANHUI JIALIQI AEROSPACE CARBON FIBER Co.,Ltd. |