CN101323051A - Method and apparatus for preparing and forming minitype compound material - Google Patents
Method and apparatus for preparing and forming minitype compound material Download PDFInfo
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- CN101323051A CN101323051A CN 200810122611 CN200810122611A CN101323051A CN 101323051 A CN101323051 A CN 101323051A CN 200810122611 CN200810122611 CN 200810122611 CN 200810122611 A CN200810122611 A CN 200810122611A CN 101323051 A CN101323051 A CN 101323051A
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Abstract
The invention relates to a method and a device for preparing and forming a micro composite material. The device consists of an Nd:YAG laser, a reflector, a lens, a restraint layer, a single-dimension mobile platform, a micro die, a three-dimension mobile worktable, a three-dimension mobile platform controller, an L-shaped base and a computer. The method for the synchronous realization of material composite and micro forming comprises: pulsed laser is used for driving a metal foil plate to move at high speed; the metal foil plate impacts a base foil plate in the micro die at high speed after moving a certain distance; the high temperature and high pressure generated in the impact surface can realize the composite connection between the metal foil plate and the base foil plate; the connected metal foil plate and base foil plate have certain impulse and compress to the direction of the die; owing to the limitation of the die, the shape of the micro die can be duplicated, thus realizing the synchronization of composite material production and micro forming. The method and the device have the advantages of reasonable design, simple process, good consistency, and being applicable to mass production.
Description
Technical field
The present invention relates to composite manufacturing and little shaping field, the method and the device that refer in particular to a kind of fine-scale composite preparation and be shaped, it can realize production and little shaping of composite synchronously, is fit to the batch process and the shaping of composite.
Background technology
Composite is meant the material that is combined by different way by two or more different material, and it can bring into play the advantage of various materials, overcomes the defective of homogenous material, enlarges the range of application of material.Because characteristics such as that composite has is in light weight, intensity is high, excellent spring, resistance to chemical attack and good weatherability, be widely used in Aero-Space, field such as electric.
Explosive welding is a kind of technology of making composite, has the incomparable advantage of traditional welding technology, can at normal temperatures various metal materials be coupled together, even nonmetallic materials and metal material can be coupled together, also be the new method of producing composite, this technology is widely used in fields such as chemical industry, machinery, mining industry, building, shipbuilding, atomic energy, space technology.There are a lot of scholars that more deep research has been carried out in explosive welding both at home and abroad, for example: K.Raghukandan has investigated the intensity of copper and mild steel explosive welding from the angle of welding parameters such as spacing, rate of loading, thickness with test, has confirmed that the weld strength of explosive welding is greater than mother metal; Behcet Gulenc has realized the welding of aluminium and copper by the method for test, and has studied the influence of explosion energy butt welded seam; People such as P.Manikandana have then realized titanium and stainless welding; People such as Zhao Huiying have realized that minimum thickness is respectively being welded to each other between the aluminium of 2 millimeters copper and 1 millimeter.Though explosive welding has obtained large development, explosive welding still has its limitation, because explosive often is difficult to precisely controlledly as welding energy, causes explosive welding to be difficult to realize the welding of micro element and the preparation of fine-scale composite; In addition, explosive also has certain injury to environment and human body.
Along with developing rapidly of electronic product, biology, medicine equipment and MEMS, having microminiaturized product demand light, thin, short, little, multifunctional characteristics constantly increases, the processing of associated micro metal parts also seems more and more important, has driven the development of the little forming technique of metal.Micro metal product by little shaping manufacturing is widely used in a plurality of fields such as automation, health care, Aero-Space, telecommunications electronics, precision instrument and national defence, microminiaturization makes MEMS (MEMS) possess more excellent performance and function at aspects such as precision, thermal deformation, vibration and speed, a miniature important directions that changes into the contemporary science and technology development.
Inherent characteristicses such as desired in enormous quantities, the high efficiency of microminiaturized industry, high accuracy, high mould machine, short period, low cost, pollution-free, clean shaping have restricted the extensive use of process technologies such as traditional micro-lithography, chemical etching and LIGA.The researcher finds that plastic working is fit to mass production micro element cheaply, feasible little forming technique based on plastic working has obtained developing rapidly, because the little drip molding of thin plate is used widely in electronic communication industry, make the little forming technique of thin plate become the focus of the little shaping research of plasticity.But micro-plasticity forming is compared to the difference of traditional Plastic Forming maximum when being that the size of workpiece reaches submillimeter or micro-meter scale, variation has taken place in the physical characteristic and the internal structure of workpiece self, show scale effect, make deformable material show fragility, placticity failure takes place easily; Scale effect also makes the ratio of material surface area and volume increase, and frictional force than much bigger under the macro-size, influence the ability of material Plastic Forming to the influence that is shaped, so how to improve the little crystallized ability of plasticity be the key of the little forming technique of thin plate.
Can draw according to above, the little shaping of plasticity can realize the mass low-cost production, but crystallized ability is low; Explosive welding can realize the production of composite, but there is the shortcoming that machining accuracy is low, pollute greatly, can't realize miniaturization, therefore seek a kind of method that can realize production and little shaping of composite synchronously, will be widely used in industrial production.
Summary of the invention
The method and the device that the purpose of this invention is to provide a kind of fine-scale composite preparation and be shaped.
Described fine-scale composite preparation and the method that is shaped, it is characterized in that utilizing pulse laser to drive the motion of metal forming plate hight speed, the metal forming plate move behind the segment distance with micro-mould on matrix paper tinsel plate generation high velocity impact, can realize compound connection between metal forming plate and the matrix paper tinsel plate at the HTHP that bump produces on the interface, metal forming plate after the connection and matrix paper tinsel plate have certain momentum and compress to the mould direction, because the restriction of mould can copy the micro-mould shape, realize the synchronous of composite production and little shaping.
Fine-scale composite preparation of the present invention and building mortion are made up of Nd:YAG laser instrument, speculum, condenser lens, restraint layer, one dimension mobile platform, minisize mould, three-dimensional travelling table, three-dimensional mobile platform controller, L type base, computer; The laser that computer control Nd:YAG laser instrument sends is delivered to speculum and condenser lens successively by optical fiber, and the condenser lens below is a restraint layer, and restraint layer is fixed on the one dimension mobile platform, and the one dimension mobile platform is installed in the vertical plane of L type base; The below of restraint layer is three-dimensional mobile platform, and three-dimensional mobile platform is installed in L type base end face, and links to each other with three-dimensional mobile platform controller.
Above-mentioned said minisize mould fine-scale composite preparation and building mortion also comprise the minisize mould that is installed on the three-dimensional mobile platform.Said minisize mould can be according to little shaping form specific design.
When using device of the present invention to carry out Composite Preparation and shaping, the metal forming plate is close to the restraint layer lower surface, matrix paper tinsel plate is placed on the minisize mould.
According to the function needs of design, computer can be controlled the Nd:YAG laser instrument and send pulse laser, and the pulsewidth of laser is in the ns level, and the energy of pulse laser is adjustable; The pulse laser scioptics focus on the back power density and reach GW/cm
2Level acts on the metal forming plate through behind the restraint layer, and laser makes a part of material vaporization in metal forming plate surface produce the expansion plasma and drives the fast motion of residual metallic paper tinsel plate hight.
Function needs according to design, the pulse laser of high power density bumps with matrix paper tinsel plate after driving metal forming plate hight speed motion one segment distance, high velocity impact can produce HTHP at the collision interface, realize compound connection of metal forming plate and matrix paper tinsel plate, because laser energy is by computer control, can obtain better to connect effect than explosive welding, also can not pollute environment.
Function needs according to design, after connecting as one, metal forming plate behind the high velocity impact and matrix paper tinsel plate still have certain momentum, metal forming plate and matrix paper tinsel plate compress to the minisize mould direction together, owing to be subjected to the restriction of minisize mould shape, the connector of metal forming plate and matrix paper tinsel plate can copy the shape of minisize mould, realizes accurate little shaping.
According to the function needs of design, the thickness of metal forming plate can change, and the flying speed of metal forming plate can be predicted according to the Gurney model of Laser Driven film flying motion, regulate the requirement that laser parameter can satisfy different connections and forming technology.
Function needs according to design, metal forming plate and workpiece connect as one the quick process that is shaped in back and have very high strain rate, the inertia effect in the shaping has improved the ultimate tensile stress of material, refinement the crystal grain of material, show higher crystallized ability than common micro-plasticity forming.
According to the function needs of design, the upper-lower position of restraint layer can accurately be controlled by the one dimension mobile platform, to obtain the hot spot of different sizes, realizes the compound of Laser Driven different area metal forming plate and matrix paper tinsel plate and shaping.
Function needs according to design, minisize mould has higher hardness, guarantee not lose efficacy in the process of little shaping, minisize mould is installed on the three-dimensional mobile platform, by the position of the little shaping of matrix paper tinsel plate on the accurate action control minisize mould of three-dimensional mobile platform.
Fine-scale composite preparation involved in the present invention and method and the device that is shaped, according to the explosive welding principle, utilize Laser Driven film flying technology to realize the ultrafast compound of different materials and shaping, can realize the connection and the shaping of high rigidity materials with high melting point synchronously, because process velocity is ultrafast, strain rate is very high in the material forming process, has the incomparable crystallized ability of common micro-plasticity forming, also can realize the low-cost production of composite micro element.System of the present invention is reasonable in design, and technology is simple, high conformity, and be suitable for mass production.
Description of drawings
Fig. 1 is a kind of composite production and the micro-forming device schematic diagram that proposes according to the present invention.
Fig. 2 is the schematic diagram after the compound and little shaping of material.
1:L type base, 2: three-dimensional mobile platform, 3: minisize mould, 4: matrix paper tinsel plate, 5: one dimension mobile platform, 6: metal forming plate, 7: restraint layer, 8: condenser lens, 9: the second speculums, 10: three-dimensional mobile platform controller, 11: computer, the 12:Nd:YAG laser instrument, 13: the first speculums
The specific embodiment
Fine-scale composite preparation that the present invention proposes and building mortion as shown in Figure 1, whole device is partly formed by 11.The laser that computer 11 control Nd:YAG laser instruments 12 send is delivered to by first speculum 13, second speculum 9 and condenser lens 8 successively by optical fiber, condenser lens 8 belows are restraint layers 7, restraint layer 7 is fixed on the one dimension mobile platform 5 in its left side, and one dimension mobile platform 5 is installed in the left side of L type base 1; The below of restraint layer 7 is three-dimensional mobile platforms 2, and three-dimensional mobile platform controller 10 is on the right of three-dimensional mobile platform 2, and three-dimensional mobile platform 2 is installed in L type base 1 bottom surface.Implementation process is specific as follows:
At first, design minisize mould 3 according to little shaping form, minisize mould 3 is installed on the three-dimensional mobile platform 2, selection needs the kind and the thickness of combined shaping material, Gurney model by the motion of Laser Driven film flying calculates machined parameters such as laser energy, spot diameter, and matrix paper tinsel plate 6 is placed on the minisize mould 3.
Secondly, regulate one dimension mobile platform 5 to certain altitude, suitable to satisfy being installed as of metal forming plate 6, smear the thin silicon oil reservoir at the lower surface of restraint layer 7, metal forming plate 6 is placed on the silicon layer, and the metal forming plate applied certain pressure, rely on the absorption affinity of silicone oil entirely to cohere at restraint layer 7 lower surfaces.
Then, open Nd:YAG laser instrument 12, utilize computer 11 control Nd:YAG laser instruments 12 to send a branch of debugging light, debugging light is successively by first speculum 13, second speculum 9, be radiated on the metal forming plate 6 through passing restraint layer 7 after condenser lens 8 focusing, regulate the facula area of one dimension mobile platform 5 need to obtain, utilize the three-dimensional mobile platform 2 of three-dimensional mobile platform controller 10 controls accurately to move simultaneously, drive minisize mould 3 and 4 motions of matrix paper tinsel plate, make the position that needs to be shaped under hot spot, keep the fixing of each component locations, enable debugs light.
At last, according to processing request, utilize computer 11 control Nd:YAG laser instruments 12 to send certain energy pulses laser, passing restraint layer 7 after pulse laser focuses on by first speculum 13, second speculum 9, process lens 8 successively is radiated on the metal forming plate 6, drive metal forming plate 6 to matrix paper tinsel plate 4 high-speed motions, in collision process, realize quick connection of metal forming plate 6 and matrix paper tinsel plate 4, metal forming plate 6 after the connection and matrix paper tinsel plate 4 are together to minisize mould 3 compressions, quick copy goes out the shape of minisize mould 3, realizes little shaping.
Claims (6)
1. fine-scale composite preparation and the method that is shaped, it is characterized in that, the metal forming plate hight speed of utilizing pulse laser to drive on the restraint layer is moved, the metal forming plate move behind the segment distance with micro-mould on matrix paper tinsel plate generation high velocity impact, can realize compound connection between metal forming plate and the matrix paper tinsel plate at the HTHP that bump produces on the interface, metal forming plate after the connection and matrix paper tinsel plate have certain momentum and compress to the mould direction, because the restriction of mould can copy the micro-mould shape, realize the synchronous of composite production and little shaping.
2, the method for fine-scale composite preparation according to claim 1 and shaping, it is characterized in that, the upper-lower position of said restraint layer can accurately be controlled by the one dimension mobile platform, to obtain the hot spot of different sizes, realize the compound of Laser Driven different area metal forming plate and matrix paper tinsel plate and shaping.
3. the method for fine-scale composite production according to claim 1 and shaping is characterized in that, sends pulse laser by computer control Nd:YAG laser instrument, and the pulsewidth of laser is in the ns level, and the energy of pulse laser is adjustable; The pulse laser scioptics focus on the back power density and reach GW/cm
2Level acts on the metal forming plate through behind the restraint layer, and laser makes a part of material vaporization in metal forming plate surface produce the expansion plasma and drives the fast motion of residual metallic paper tinsel plate hight.
4. the method for a kind of fine-scale composite production according to claim 3 and shaping, it is characterized in that, the thickness of metal forming plate can change, the flying speed of metal forming plate can be predicted according to the Gurney model of Laser Driven film flying motion, regulate the requirement that laser parameter can satisfy different connections and forming technology.
5, a kind of fine-scale composite production and building mortion that is used to realize the said method of claim 1, it is characterized in that it is made up of Nd:YAG laser instrument, speculum, condenser lens, restraint layer, one dimension mobile platform, minisize mould, three-dimensional travelling table, three-dimensional mobile platform controller, L type base, computer; The laser that computer control Nd:YAG laser instrument sends is delivered to speculum and lens successively by optical fiber, and the lens below is a restraint layer, and restraint layer is fixed on the one dimension mobile platform, and the one dimension mobile platform is installed in the vertical plane of L type base; The below of restraint layer is three-dimensional mobile platform, and three-dimensional mobile platform is installed in L type base end face, and links to each other with three-dimensional mobile platform controller.
6. the device of fine-scale composite production according to claim 5 and shaping is characterized in that, comprises that also the minisize mould that is installed on the three-dimensional mobile platform has higher hardness, guarantees not lose efficacy in the process of little shaping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 200810122611 CN101323051A (en) | 2008-06-03 | 2008-06-03 | Method and apparatus for preparing and forming minitype compound material |
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| CN 200810122611 CN101323051A (en) | 2008-06-03 | 2008-06-03 | Method and apparatus for preparing and forming minitype compound material |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102029317A (en) * | 2010-10-12 | 2011-04-27 | 江苏大学 | Laser direct-compounding micro-plastic forming device and method |
| CN102240850A (en) * | 2010-05-14 | 2011-11-16 | 松下电器产业株式会社 | Jointing method, jointing device and jointing body |
| CN102653031A (en) * | 2012-05-08 | 2012-09-05 | 江苏大学 | Laser drive combined flyer forming method and device thereof |
| CN103252396A (en) * | 2013-05-20 | 2013-08-21 | 江苏大学 | Laser loading flying piece stamping plasticine indirect micro plastic forming device and method thereof |
| CN103272907A (en) * | 2013-05-28 | 2013-09-04 | 江苏大学 | Micro deep drawing automation device and method of driving flyer to load sheet through pulse laser |
| CN103273195A (en) * | 2013-05-28 | 2013-09-04 | 江苏大学 | Micro-blanking automation device and method of sheet metal under indirect impact of laser |
| CN103317004A (en) * | 2013-05-28 | 2013-09-25 | 江苏大学 | Micro-bend-impression automation device and method for laser driven flyer loading sheet |
| CN105328339A (en) * | 2015-11-27 | 2016-02-17 | 江苏大学 | Laser-shock-based device for deformation connection of metal sheets and method thereof |
| CN105458496A (en) * | 2015-12-16 | 2016-04-06 | 江苏大学 | Synchronous welding and forming method and device for laser shock metal foil plates |
| CN107520538A (en) * | 2017-08-16 | 2017-12-29 | 江苏大学 | A kind of device and method of new pattern laser indirect stroke microsecond delay |
| CN114346444A (en) * | 2021-12-30 | 2022-04-15 | 江苏大学 | Laser shock forming method for surface of compound-eye-like double-scale curved surface structure |
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2008
- 2008-06-03 CN CN 200810122611 patent/CN101323051A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102240850A (en) * | 2010-05-14 | 2011-11-16 | 松下电器产业株式会社 | Jointing method, jointing device and jointing body |
| CN102240850B (en) * | 2010-05-14 | 2016-02-24 | 松下知识产权经营株式会社 | Joint method and engagement device |
| CN102029317A (en) * | 2010-10-12 | 2011-04-27 | 江苏大学 | Laser direct-compounding micro-plastic forming device and method |
| CN102029317B (en) * | 2010-10-12 | 2012-08-29 | 江苏大学 | Laser direct-compounding micro-plastic forming device and method |
| CN102653031B (en) * | 2012-05-08 | 2015-02-04 | 江苏大学 | Laser drive combined flyer forming method and device thereof |
| CN102653031A (en) * | 2012-05-08 | 2012-09-05 | 江苏大学 | Laser drive combined flyer forming method and device thereof |
| CN103252396A (en) * | 2013-05-20 | 2013-08-21 | 江苏大学 | Laser loading flying piece stamping plasticine indirect micro plastic forming device and method thereof |
| CN103252396B (en) * | 2013-05-20 | 2015-06-10 | 江苏大学 | Laser loading flying piece stamping plasticine indirect micro plastic forming device and method thereof |
| CN103272907A (en) * | 2013-05-28 | 2013-09-04 | 江苏大学 | Micro deep drawing automation device and method of driving flyer to load sheet through pulse laser |
| CN103273195A (en) * | 2013-05-28 | 2013-09-04 | 江苏大学 | Micro-blanking automation device and method of sheet metal under indirect impact of laser |
| CN103317004A (en) * | 2013-05-28 | 2013-09-25 | 江苏大学 | Micro-bend-impression automation device and method for laser driven flyer loading sheet |
| CN103317004B (en) * | 2013-05-28 | 2015-04-22 | 江苏大学 | Micro-bend-impression automation device and method for laser driven flyer loading sheet |
| CN105328339A (en) * | 2015-11-27 | 2016-02-17 | 江苏大学 | Laser-shock-based device for deformation connection of metal sheets and method thereof |
| CN105328339B (en) * | 2015-11-27 | 2017-02-01 | 江苏大学 | Laser-shock-based device for deformation connection of metal sheets and method thereof |
| CN105458496A (en) * | 2015-12-16 | 2016-04-06 | 江苏大学 | Synchronous welding and forming method and device for laser shock metal foil plates |
| CN107520538A (en) * | 2017-08-16 | 2017-12-29 | 江苏大学 | A kind of device and method of new pattern laser indirect stroke microsecond delay |
| CN114346444A (en) * | 2021-12-30 | 2022-04-15 | 江苏大学 | Laser shock forming method for surface of compound-eye-like double-scale curved surface structure |
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Open date: 20081217 |