CN104842077B - Aluminum alloy microwave assembly brazing sheet processing method - Google Patents
Aluminum alloy microwave assembly brazing sheet processing method Download PDFInfo
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- CN104842077B CN104842077B CN201510313406.XA CN201510313406A CN104842077B CN 104842077 B CN104842077 B CN 104842077B CN 201510313406 A CN201510313406 A CN 201510313406A CN 104842077 B CN104842077 B CN 104842077B
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- Prior art keywords
- floating platform
- cut
- air floating
- electronic air
- cutting
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
Abstract
The invention discloses an aluminum alloy microwave assembly brazing sheet processing method, which comprises the steps of 1) placing an aluminum alloy brazing sheet to be cut on an electric air-floating platform; 2) starting a vacuum pump so as to carry out air extraction on a micropore array on the electric air-floating platform, thereby enabling the aluminum alloy brazing sheet to be cut to be adsorbed on the electric air-floating platform; 3) selecting appropriate cutting parameters, and starting an ultraviolet laser and the electric air-floating platform to carry out cutting; and 4) turning off the vacuum pump after cutting is finished, and taking out a well cut brazing sheet. The method disclosed by the invention can cut the brazing sheet, which is complex in shape and high in precision, by using ultraviolet laser under the condition of not using a fixture, thereby being conducive to improving the batch production efficiency. According to the invention, cutting edges are clean and have no adhering slag or carbon deposits, and the brazing sheet can be directly applied to brazing welding after being cut, thereby avoiding damages for the processing precision of the brazing sheet in a secondary mechanical cleaning process.
Description
Technical field
The present invention relates to the present invention relates to the manufacture field of microwave components soldering lug, more particularly to a kind of aluminium alloy microwave group
Part soldering slice processing method.
Background technology
To meet the double requirements of structure and electrical property, the shape of microwave components becomes increasingly complex, precision more and more higher.Example
Such as, flat-type radiating guide is a kind of microwave components for being widely used in modern radar field, typically by multiple complex-shaped
High accuracy thin-walled die cavity class part is constituted, and its complex structure often has hundreds of waveguide die cavities and miniature groove, there is hundreds of
Size needs to ensure；On the other hand, the dimensional accuracy and the accuracy of form and position of antenna is also increasingly intended to micron order standard.As micro-
How the key link of ripple component brazing process, process, soldering lug of Accuracy Matching consistent with microwave components solder side shape
The focus of attention that microwave components manufacture field is become, has been also a Pinch technology for restricting microwave components precision welding.
At present, the manufacturing process of microwave components soldering lug mainly has two kinds.One kind is according to solder side shape, size, profit
Go out soldering lug with scalpel craft scribing.This cutting mode amount of labour is big and scribing goes out soldering lug dimensional accuracy is low, deformation
Seriously, it is difficult to be applied to the welding batch production of complex precise microwave components.Second cutting mode is to be entered using wire cutting machine
Row electric discharge cutting, the more manual scribing of this mode is greatly improved in efficiency, but each waveguide die cavity is both needed to during wire cutting
Punched, worn silk, operation is more and complicated, and easily greasy dirt is left on soldering lug after wire cutting, also needs to carry out soldering lug
Cleaning, reduces production efficiency.Additionally, also utilizing C0 at present2Laser instrument or Nd:YAG laser carries out soldering lug cutting
Report, but in its cutting process, soldering lug is fixed on platform using special frock, is needed afterwards to carry out clamping before cutting, is unloaded
Carry, have impact on cutting efficiency.And due to C02And Nd:YAG laser belongs to thermal source laser, its optical maser wavelength be respectively 10.64 μm and
1.064 μm, cut by fusing metal material in the course of processing, be also easy to produce splashing, cause cut place dross, carbon deposit occur
Etc. phenomenon.If to dross, carbon deposit thing etc. do not carried out polishing cleaning after dicing, the microwave components electrical property after soldering can be produced
Affect；If polishing the dross on soldering lug, carbon deposit thing, due to soldering lug relatively thin (0.05～0.3mm), low intensity, beat
Honed journey pole easily causes the deformation of soldering lug, destroys the cutting accuracy of soldering lug, same easily to the microwave components electricity after soldering
Performance produces impact.
The content of the invention
For soldering lug cut lengths precision in prior art it is low, deformation is serious, there is dross, carbon deposit thing etc. on soldering lug
A kind of problem, there is provided aluminium alloy microwave components soldering slice processing method.The present invention can be realized in the bar for not using frock clamp
Complex-shaped, high-precision soldering lug is cut out under part using Ultra-Violet Laser.
The present invention is to be achieved through the following technical solutions above-mentioned technical purpose：
A kind of aluminium alloy microwave components soldering slice processing method, comprises the following steps：
Step 1. lies against the aluminium alloy brazing piece to be cut removed after superficial oxidation skin on electronic air floating platform；
Step 2. starts vacuum pump and the microwell array on electronic air floating platform is evacuated, and aluminium alloy brazing piece to be cut is put down
Whole absorption is on electronic air floating platform；
Step 3. is from ultraviolet laser and the cutting parameter of electronic air floating platform；
Step 4. starts ultraviolet laser, electronic air floating platform and aluminium alloy brazing piece to be cut is cut；
After step 5. cut, ultraviolet laser, electronic air floating platform and vacuum pump, electronic air floating platform table are closed
Face adsorptive pressure is reduced to 0Pa, takes out the soldering lug for cutting.
Further, in step 2, the adsorptive pressure of the vacuum pump is -60KPa～-120KPa.
Used as the preferred version of above-mentioned technical proposal, the adsorptive pressure is -80kPa.
Further, in step 3, the cutting parameter of the selection is：The rated power of ultraviolet laser is 5-100W, work
It is 10000-50000Hz to make electric current for 10-100A, frequency, and the movement velocity of electronic air floating platform is 0.1-5mm/s.
Used as the preferred version of above-mentioned technical proposal, the rated power of the ultraviolet laser is that 10W, operating current are
34.5A, frequency are 30000Hz；The movement velocity of the electronic air floating platform is 0.6mm/s.
Further, the electronic air floating platform surface is provided with microwell array, and the microwell array is connected with vacuum pump.
Further, sweep-up pipe is installed near the laser head of the ultraviolet laser.
Beneficial effect
The present invention compared with prior art, with advantages below：
1. soldering lug cutting is carried out using the Ultra-Violet Laser of cold light source.Ultra-Violet Laser is that (wavelength is short wavelength laser
355nm), in the course of processing directly Metal gasification realization is cut in laser emission region, its focal beam spot and heat affected area are equal
Less than big wavelength laser, without dross and carbon deposit thing after cutting.
2. cutting accuracy is high, up to 10 μm.Electronic air floating platform kinematic accuracy is up to 0.01 μm, and Ultra-Violet Laser cutting seam
Gap is little, heat affected area is narrow, is conducive to the control of cutting accuracy.
3. in cutting process due to sweep-up pipe persistently absorb cutting produce dust, and Ultra-Violet Laser cutting after soldering lug without
The things such as dross, carbon deposit thing need cleaning, therefore this technology cutting gained weld tabs directly can be assembled with microwave components, be welded
Connect, it is to avoid the soldering lug problem on deformation in polishing scale removal process.
4. the fixation of soldering lug is realized using the negative-pressure adsorption power of platform, realize and exempt from frock and fix.
5. production efficiency is high.Exempt from frock due to cutting process to fix, and without the need for polishing cleaning after cutting, therefore compared to it
Its soldering lug cutting technique, the polishing time of soldering lug, is conducive to improving batch product after saving the clamping of frock and unloading, cut
Efficiency.
Description of the drawings
Fig. 1 is the cutting schematic diagram of soldering lug of the present invention；
Fig. 2 is the Local C AD design drawing of soldering lug of the present invention.
Specific embodiment
Effect to make the architectural feature to the present invention and reached has a better understanding and awareness, to preferably
Embodiment and accompanying drawing coordinate detailed description, are described as follows：
As shown in Fig. 1 Fig. 2, the present invention discloses a kind of aluminium alloy microwave components soldering slice processing method.Fig. 1 is given to certain
The schematic diagram that soldering lug used by microwave components is cut, Fig. 2 gives the Local C AD design drawing of cutting profile.Take first
The aluminium alloy brazing piece 3 to be cut of 500mm ╳ 300mm ╳ 0.15mm is standby, and concrete technology step is as follows：
Step 1. lies against the aluminium alloy brazing piece 3 to be cut removed after superficial oxidation skin on electronic air floating platform 1；
Step 2. starts vacuum pump 4 and the microwell array 11 on electronic air floating platform 1 is evacuated, and microwell array 11 will be to be cut
The smooth absorption of weld tabs 3 is on electronic air floating platform 1；
Step 3. is from ultraviolet laser 2 and the cutting parameter of electronic air floating platform 1；
Step 4. starts ultraviolet laser 2, electronic air floating platform 1 and aluminium alloy brazing piece 3 to be cut is cut；
After step 5. cut, ultraviolet laser 2, electronic air floating platform 1 and vacuum pump 4 are closed, electronic air supporting is put down
The surface adsorption pressure of platform 1 is reduced to 0Pa, takes out the soldering lug of well cutting.
In step 2, the adsorptive pressure of vacuum pump 4 may be set to any one value between -60KPa～-120KPa.Work as absorption
When pressure is set as -80kPa, adsorption effect is optimal.
In step 3, the cutting parameter that ultraviolet laser 2 is selected for rated power be 5-100W, operating current be 10-
100A, frequency are 10000-50000Hz, movement velocity 0.1-5mm/s of electronic air floating platform 1.It is specified when ultraviolet laser 2
Power setting is 10W, operating current is set as 34.5A, frequency setting and sets for 30000Hz, the movement velocity of electronic air floating platform 1
For 0.6mm/s when, cutting effect is optimal.
In real work, first the aluminium alloy brazing piece 3 of descale is positioned on electronic air floating platform 1, is started and electricity
The vacuum pump 4 of the connection of 1 surface micropore array of dynamic air floating platform 11, is adsorbed in electronic gas by aluminium alloy brazing piece 3 is closely smooth
On floating platform 1.Further according to the design drawing of microwave components, aluminium alloy brazing piece 3 is cut.In cutting process, using electronic
Air floating platform 1 controls the cutting path of ultraviolet laser 2, cuts out the soldering lug with given shape.Ultra-Violet Laser has cut
Cheng Hou, ultraviolet laser 2, electronic air floating platform 1 will be automatically switched off, the surface of electronic air floating platform 1 after manual-lock vacuum pump 4
Adsorptive pressure is reduced to 0Pa, now takes out the soldering lug for cutting.
Soldering lug after cutting, cut edge is clean, and without the need for after-treatment vacuum brazing is may be directly applied to.To cutting
Good soldering lug carries out light microscopic observation, and observed result such as table 1 is obtained after theoretical value, measured value are cut to soldering lug relatively
Tolerance value result show that soldering lug precision is good, and error is within 10 μm.
Table 1
For above-mentioned cutting method, the present invention also provides a kind of electronic air floating platform 1, and the surface of electronic air floating platform 1 is provided with
Microwell array 11, microwell array 11 is connected with vacuum pump 4.
In cutting process, the microwell array 11 that electronic air floating platform 1 is connected by its surface with vacuum pump 4 is by aluminium alloy
Soldering lug 3 is closely smooth to be adsorbed on electronic air floating platform 1, and the reachable -60KPa of the absorption affinity of electronic air floating platform 1～-
120KPa, is fixed without the need for special tooling to soldering lug.
The present invention also provides a kind of ultraviolet laser 2, and sweep-up pipe 21 is provided near the laser head of ultraviolet laser 2.
The aluminium powder for constantly being produced cutting using the suction of sweep-up pipe 21 in cutting process is absorbed, and cutting process is clean, nothing
Pollution.
Ultimate principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
The simply present invention of the personnel it should be appreciated that the present invention is not restricted to the described embodiments, described in above-described embodiment and description
Principle, without departing from the spirit and scope of the present invention the present invention also have various changes and modifications, these change and
Improvement is both fallen within the range of claimed invention.The protection domain of application claims by appending claims and its
Equivalent is defined.
Claims (3)
1. a kind of aluminium alloy microwave components soldering slice processing method, it is characterised in that：Comprise the following steps：
11) the aluminium alloy brazing piece to be cut removed after superficial oxidation skin is lain against on electronic air floating platform；
12) start vacuum pump to be evacuated the microwell array on electronic air floating platform, by the suction that aluminium alloy brazing piece to be cut is smooth
It is attached on electronic air floating platform；The adsorptive pressure is -80kPa；
13) from ultraviolet laser and the cutting parameter of electronic air floating platform；The rated power of the ultraviolet laser be 10W,
Operating current is 34.5A, frequency is 30000Hz；The movement velocity of the electronic air floating platform is 0.6mm/s；
14) start ultraviolet laser, electronic air floating platform to cut aluminium alloy brazing piece to be cut；
15) after cut, ultraviolet laser, electronic air floating platform and vacuum pump, electronic air floating platform surface adsorption are closed
Pressure is reduced to 0Pa, takes out the soldering lug of well cutting.
2. a kind of aluminium alloy microwave components soldering slice processing method according to claim 1, it is characterised in that：It is described electronic
Air floating platform surface is provided with microwell array, and the microwell array is connected with vacuum pump.
3. a kind of aluminium alloy microwave components soldering slice processing method according to claim 1, it is characterised in that：It is described ultraviolet
Sweep-up pipe is installed near the laser head of laser instrument.
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| CN105479016B (en) * | 2015-12-30 | 2017-06-27 | 大族激光科技产业集团股份有限公司 | The laser cutting method of the pcb board containing layers of copper |
| CN106670735B (en) * | 2016-08-31 | 2019-02-01 | 北京时代民芯科技有限公司 | A kind of high-precision weld tabs cutting method |
| CN107234354B (en) * | 2017-08-03 | 2019-06-04 | 中国电子科技集团公司第三十八研究所 | A kind of vacuum brazing method applied to thin-wall construction |
| CN109079340A (en) * | 2018-09-26 | 2018-12-25 | 北京允升吉电子有限公司 | A kind of SMT template air bearing cutting equipment |
| CN110977189B (en) * | 2019-11-18 | 2021-07-13 | 济南邦德激光股份有限公司 | Laser cutting system and cutting method thereof |
| CN114700655A (en) * | 2022-04-11 | 2022-07-05 | 中国电子科技集团公司第三十八研究所 | Soldering lug processing device and processing method |
| CN115921901A (en) * | 2023-01-09 | 2023-04-07 | 安庆瑞迈特科技有限公司 | Method for removing burrs of 3D printing collimator with assistance of microwaves |
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| JP3177023B2 (en) * | 1992-11-10 | 2001-06-18 | 日東電工株式会社 | Method and apparatus for processing external shape of flexible wiring board |
| US6365869B1 (en) * | 2000-08-11 | 2002-04-02 | Matsushita Electric Industrial Co., Ltd. | Apparatus for laser processing foil material |
| CN100593447C (en) * | 2007-04-19 | 2010-03-10 | 深圳市大族激光科技股份有限公司 | Laser device for cutting |
| CN101249590A (en) * | 2008-02-29 | 2008-08-27 | 深圳市大族激光科技股份有限公司 | Ultraviolet laser cutting machine tool |
| CN201455556U (en) * | 2009-01-13 | 2010-05-12 | 包头高源激光科技发展有限公司 | Laser cutting device for amorphous state alloy belt material |
| CN101462205B (en) * | 2009-01-13 | 2011-12-07 | 包头高源激光科技发展有限公司 | Laser cutting method of amorphous alloy strip steel rolled stock |
| CN201702513U (en) * | 2010-01-05 | 2011-01-12 | 昆山市正业电子有限公司 | Ultraviolet laser cutting machine |
| CN102407405A (en) * | 2010-09-20 | 2012-04-11 | 武汉楚天激光（集团）股份有限公司 | Laser cutting process for aluminum foil |
| CN102841505B (en) * | 2011-06-22 | 2015-06-17 | 上海微电子装备有限公司 | Substrate-precise-positioning workpiece stage |
| CN202124328U (en) * | 2011-07-01 | 2012-01-25 | 北京京城清达电子设备有限公司 | Floatation platform |
| CN103231619A (en) * | 2013-04-19 | 2013-08-07 | 王敬达 | Preparation equipment for large-size fine embossed metal plate |
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