CN103567348A - Process method of electromagnetic riveting composite material - Google Patents
Process method of electromagnetic riveting composite material Download PDFInfo
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- CN103567348A CN103567348A CN201310554978.8A CN201310554978A CN103567348A CN 103567348 A CN103567348 A CN 103567348A CN 201310554978 A CN201310554978 A CN 201310554978A CN 103567348 A CN103567348 A CN 103567348A
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- rivet
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J15/00—Riveting
- B21J15/02—Riveting procedures
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Insertion Pins And Rivets (AREA)
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Abstract
The invention discloses a process method for achieving an electromagnetic riveting composite material. The method mainly resolves the problem that when riveting is carried out through a traditional riveting method at preset, the composite material is damaged easily. The process method for achieving the electromagnetic riveting composite material adopts the electromagnetic riveting technology, and largely reduces the installation damage to the structure of the composite material in the riveting process through a specially designed gasket and an appropriate tack hole interval and rivet overhang, thereby improving the quality of connectors.
Description
Technical field
The present invention relates to the process of the composite structure riveted joint in aero-manufacturing technology field, specifically a kind of process of electromagnetic riveting composite.。
Background technology
At aerospace field, riveted joint is due to simple process, and lightweight construction, more has superiority than being spirally connected, and is to apply a kind of process very widely.Composite obtains applying more and more widely at aerospace field owing to having many good qualities.But composite interlayer intensity is low, while adopting common hammer riveting, there is the differential expansion due to nail bar often easily to cause composite structure damage; Or due to the impact of hammer riveting, composite structure is impacted to damage.
Electromagnetic riveting is a kind of advanced person's riveting process, is that a kind of impact distance is zero impact loading, little to the impact of structure, is a frontier of riveting technology.In addition, the nail bar of electromagnetic riveting expands evenly, can reduce due to the crush injury of nail bar differential expansion to composite structure.During composite riveting, there is considerable influence in rivet hole gap to the nail bar even amount of interference of joint that expands, and affects composite structure riveting quality.In addition, often need shimming during composite structure riveted joint, its shim size is very large on riveting quality impact.Current Electromagnetic riveting technology is mainly electromagnetic rivetter, such as: " a kind of electromagnetic rivetter " ZL00113765.4 and " a kind of low-voltage electromagnetic riveting equipment " ZL200520079179.0.And seldom see relevant report for the process that how to improve riveting quality.
Summary of the invention
The object of the invention is to disclose a kind of process of electromagnetic riveting composite.
A kind of process of electromagnetic riveting composite, first according to rivet diameter, on composite structure, make rivet hole, select titanium niobium rivet and titanium alloy pad, adopt electromagnetic rivetter, choosing suitable riveted joint voltage rivets, the aperture size that it is characterized in that described rivet hole is that rivet diameter adds 0.1mm, is no more than rivet diameter and adds 0.2mm; The internal diameter of described pad is that rivet diameter adds 0.1mm, is no more than rivet diameter and adds 0.2mm; The thickness of pad is 0.8mm～1.0mm.
Beneficial effect of the present invention is: while 1) riveting for composite structure, generally near heading, the expansion of rivet bar is larger, the expansion of nail bar is meeting extruding composite material naturally, when swell increment is too large, can cause the damage of composite structure, the internal diameter that proposes pad in the present invention requires only than the large 0.1mm of rivet diameter, little internal diameter can play the expansion of restriction rivet, to improving riveting quality, plays an important role.2) when composite structure is riveted, interporal lacuna can produce considerable influence to the fit form between riveted joint.If rivet hole Interval selecting is improper, may cause forming and interfere, when amount of interference is larger, naturally can cause the damage of composite.The present invention has provided suitable rivet hole gap can guarantee riveting quality preferably.
Below in conjunction with embodiment, the application is done and further receives relationship description.
Accompanying drawing explanation
Fig. 1 is electromagnetic riveting composite schematic diagram
Fig. 2 is rivet and nail with spacer interporal lacuna schematic diagram.
1 riveting equipment, 2 pads, 3 composite panels, 4 rivet holes, 5 rivets, 6 top iron, 7 nail interporal lacunas
The specific embodiment
The riveting equipment 1 that the present embodiment adopts is the electromagnetic rivetter of the use in producing at present, and top iron 6 is the conventional instrument for using in producing also.First according to rivet diameter, on composite panel 3, make rivet hole 4, drilling instrument and drilling require according to HB/Z223.21 ?the riveted joint of 2003 aircraft rigger skill the 21st some composite materials; Select titanium niobium rivet and titanium alloy pad, adopt electromagnetic rivetter, choose suitable riveted joint voltage and rivet, the aperture size of rivet hole is that rivet diameter adds 0.1mm, is no more than rivet diameter and adds 0.2mm; The internal diameter of described pad is that rivet diameter adds 0.1mm, is no more than rivet diameter and adds 0.2mm; The thickness of pad is 0.8mm～1.0mm.Both aperture size was generally rivet diameter and added 0.1mm～0.2mm, and pad is selected titanium alloy material, and general thickness is 0.8～1.0mm, and the internal diameter of pad is that rivet diameter adds 0.1mm.
Referring to Fig. 1, in test rivet 5 adopt CSR902B ?3 ?5 titanium niobium rivets, rivet diameter 2.38mm, testpieces material is the composite panel 3 of T300 braiding, the thickness of pad 2 is 1.0mm, and nail interporal lacuna 7 is chosen as 0.1mm, selects pad internal diameter than the about 0.1mm of rivet diameter.
The thickness of interlayer of rivet model parameter, shim size and the testpieces of test is in Table 1, the diameter of rivet hole is in Table 2, adopt suitable riveted joint voltage to carry out electromagnetic riveting to testpieces, riveted rear nail shank diameter and Assembly Interference amount in Table 3, have ten groups of experimental datas.
Table 1 rivet model parameter, shim size and thickness of interlayer
Diameter and the pad internal diameter of table 2CSR902B-3-5 rivet hole
| Testpieces numbering | Rivet aperture (mm) |
| Shi Yan Jian ?1 | 2.465 |
| Shi Yan Jian ?2 | 2.467 |
| Shi Yan Jian ?3 | 2.469 |
| Shi Yan Jian ?4 | 2.477 |
| Shi Yan Jian ?5 | 2.472 |
| Shi Yan Jian ?6 | 2.471 |
| Shi Yan Jian ?7 | 2.466 |
| Shi Yan Jian ?8 | 2.468 |
| Shi Yan Jian ?9 | 2.475 |
| Shi Yan Jian ?10 | 2.479 |
After table 3CSR902B-3-5 rivet, follow closely shank diameter and amount of interference
After riveted joint completes, ten groups of test datas are analyzed, whether first observe heading has crackle, and whether composite material surface has damage.Then test specimen is decomposed, measure and record the diameter of rivet, and infer whether pad plays the effect that reasonable limits rivet expands, and whether rivet produces extrusion damage to pilot hole.According to the quality of the amount of interference judgement assembly quality in rivet and hole after assembling riveted joint.
Research both at home and abroad shows, in composite assembly connection, the amount of interference in rivet and nail hole is in 0.8% time, and assembly quality is best.From table 3, data can be found out, the amount of interference in rivet and nail hole is all between 0～0.3%, and the amount of interference producing in assembling process is less, can not produce the crush injury to composite, and assembling effect is better.
Claims (1)
1. the process of an electromagnetic riveting composite, first according to rivet diameter, on composite structure, make rivet hole, select titanium niobium rivet and titanium alloy pad, adopt electromagnetic rivetter, choosing suitable riveted joint voltage rivets, the aperture size that it is characterized in that described rivet hole is that rivet diameter adds 0.1mm, is no more than rivet diameter and adds 0.2mm; The internal diameter of described pad is that rivet diameter adds 0.1mm, is no more than rivet diameter and adds 0.2mm; The thickness of packing ring is 0.8mm～1.0mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310554978.8A CN103567348A (en) | 2013-11-08 | 2013-11-08 | Process method of electromagnetic riveting composite material |
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| CN201310554978.8A CN103567348A (en) | 2013-11-08 | 2013-11-08 | Process method of electromagnetic riveting composite material |
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| CN103567348A true CN103567348A (en) | 2014-02-12 |
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| CN201310554978.8A Pending CN103567348A (en) | 2013-11-08 | 2013-11-08 | Process method of electromagnetic riveting composite material |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016197750A1 (en) * | 2016-01-04 | 2016-12-15 | 中兴通讯股份有限公司 | Sheet rivet structure and chassis apparatus |
| CN107882834A (en) * | 2017-11-09 | 2018-04-06 | 成都浩益科技有限公司 | A kind of cold drawn ring-grooved rivet with sealing and damping property |
| CN108176795A (en) * | 2017-11-29 | 2018-06-19 | 首都航天机械公司 | A kind of magnetic field impulse sealing riveting method of casting aluminium material housing |
| CN112959679A (en) * | 2021-01-29 | 2021-06-15 | 四川大学 | Nondestructive riveting device and method for CFRP (carbon fiber reinforced plastics) component |
| CN117028389A (en) * | 2023-10-10 | 2023-11-10 | 太原理工大学 | Full thread riveted shear fastener and method of use thereof |
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2013
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| CN101695738A (en) * | 2009-11-06 | 2010-04-21 | 哈尔滨工业大学 | Low-voltage electromagnet riveting method of metal-composite material combined structure |
| US20130167610A1 (en) * | 2012-01-04 | 2013-07-04 | The Boeing Company | Riveting Tool and Method with Electromagnetic Bucking Bar Normalization |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016197750A1 (en) * | 2016-01-04 | 2016-12-15 | 中兴通讯股份有限公司 | Sheet rivet structure and chassis apparatus |
| CN107882834A (en) * | 2017-11-09 | 2018-04-06 | 成都浩益科技有限公司 | A kind of cold drawn ring-grooved rivet with sealing and damping property |
| CN107882834B (en) * | 2017-11-09 | 2021-04-13 | 成都浩益科技有限公司 | Cold-drawn ring groove rivet with sealing and vibration damping performance |
| CN108176795A (en) * | 2017-11-29 | 2018-06-19 | 首都航天机械公司 | A kind of magnetic field impulse sealing riveting method of casting aluminium material housing |
| CN112959679A (en) * | 2021-01-29 | 2021-06-15 | 四川大学 | Nondestructive riveting device and method for CFRP (carbon fiber reinforced plastics) component |
| CN112959679B (en) * | 2021-01-29 | 2022-02-01 | 四川大学 | Nondestructive riveting device and method for CFRP (carbon fiber reinforced plastics) component |
| CN117028389A (en) * | 2023-10-10 | 2023-11-10 | 太原理工大学 | Full thread riveted shear fastener and method of use thereof |
| CN117028389B (en) * | 2023-10-10 | 2024-01-26 | 太原理工大学 | Full thread riveted shear fastener and method of use thereof |
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Application publication date: 20140212 |