CN204773606U - 3D printing device based on electron beam - Google Patents
3D printing device based on electron beam Download PDFInfo
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- CN204773606U CN204773606U CN201520444590.7U CN201520444590U CN204773606U CN 204773606 U CN204773606 U CN 204773606U CN 201520444590 U CN201520444590 U CN 201520444590U CN 204773606 U CN204773606 U CN 204773606U
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- crucible
- printhead
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- nozzle
- displacement platform
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Abstract
The utility model provides a 3D printing device based on electron beam, its characterized in that includes water -cooled crucible, water -cooled crucible's water circulation canal lays in the crucible support, and the skin wraps up with thermal insulation material, including the feeder, be connected with the pay -off shower nozzle through its output of pipeline for to print the material powder end sends into in dozen printer head, including the first gun, carry out the high temperature distillation to printing the material powder end, including beating printer head, its inside pay -off shower nozzle, first gun, water -cooled crucible, pay -off shower nozzle of being provided with, water -cooled crucible bottom department is provided with the nozzle of beating printer head, and the automatically controlled pressure valve of second is installed on the nozzle of beating printer head, including the second electron gun, preheat the base member, including three -dimensional displacement platform, including the vacuum cap, printer head, second electron gun, three -dimensional displacement platform are beaten to its inside being provided with, and its outside is provided with the air pump. The utility model discloses can print the material of various variance components to print that the layer is fine and close, the composition is easily controlled, pollution -free.
Description
Technical field
The utility model relates to 3D forming field in kind.
Background technology
3D printing technique, also known as lamination manufacture (AdditiveManufacturing, AM), belongs to the one of RP technique, and it is the technology directly manufacturing almost arbitrary shape 3D solid based on a kind of mathematical model file.3D prints and uses powdery metal or plastics etc. can jointing material, carrys out constructed object, i.e. " layer appearance method " by the mode of successively stacking accumulation.The mode that the accumulation of current 3D printed material mainly adopts has laser curing, laser sintered, fuse manufacture and fused glass pellet etc.
3D prints concept and originates from the U.S., is referred to as a class technology in rapid shaping, and its flow process printed is called as " adding accepted way of doing sth manufacture ".First producer uses computer software by after object model, data is flowed to 3D printer and selects corresponding printed material; Then 3D printer can utilize layers of material to process, and allows product be shaped gradually." subtractive process " technique corresponding with this " addition process " technique, belongs to traditional manufacture method, namely on raw-material basis, cuts down unwanted part.
The material that this " addition process " is brought is saved and is designed easily simultaneously also along with many problems.
First be exactly material constraints sex chromosome mosaicism, the material that current 3D printer uses is very limited, mainly gypsum, inorganic powder, photosensitive resin, plastics etc., and printed material is single.
Secondly, traditional 3D prints the principle due to layering superposition, and each printing inter-layer bonding force not easily affects the performance of integrated member.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of 3D printing equipment based on electron beam is disclosed, electro beam physics vapour deposition technology and 3D print and combine, and can print the material of various heterogeneity, and printable layer is fine and close, composition be easy to control, pollution-free.
Electro beam physics vapour deposition (EB-PVD) technology is the product that electron beam technology combines with physical vapour deposition (PVD) (PVD) technology, and gets up along with the development of electron beam and physical gas phase deposition technology.Electro beam physics vapour deposition is the one of vacuum evaporation technique, is widely used in material surface plated film at present.This technique utilizes metallic filament a part of electronics inner at high operating temperatures to obtain enough large energy effusion metal surface, launch thermoelectron, thermoelectron high-speed motion under the effect of electromagnetic field, form beam bombardment target material surface, the kinetic energy of electronics becomes heat energy, makes material surface be rapidly heated and evaporate.Its advantage is: evaporation rate is high, and target range of choice is large, for the material preparing various composition provides possibility; Pollute little.Evaporating materials under vacuum, can avoid the contaminated and oxidation of the material prepared, prepare material can designed capacity strong.Under employing multi electron beam rifle, many crucibles hydatogenesis condition, obtaining multilayer materials or the Gradient Materials of various heterogeneity by controlling deposition process parameters, meeting the design needs of material.
The technical scheme that the utility model provides is:
Based on a 3D printing equipment for electron beam, it is characterized in that,
Comprise cold-crucible, the water circulation channel of cold-crucible is laid in crucible holder, outer with heat-barrier material parcel, cools deposition to prevent material gas on support;
Comprise feed appliance 1, be connected with feed nozzle 7 by its output of pipeline, for printed material powder is sent in printhead;
Comprise first gun, high temperature distillation is carried out to printed material powder;
Comprise printhead, its inside is provided with feed nozzle, first gun, cold-crucible, feed nozzle, first gun are positioned on cold-crucible, its outer setting has the first electrohydraulic pressure control valve, the second electrohydraulic pressure control valve for controlling the pressure of its inside, and the first electrohydraulic pressure control valve is arranged at printhead waist; Nozzle 10, the second electrohydraulic pressure control valve that bottom cold-crucible, place is provided with printhead is installed on the nozzle of printhead;
Comprise the second electron gun, preheating is carried out to matrix 12;
Comprise three-dimensional displacement platform 11, be attached with matrix 12 on three-dimensional displacement platform, the motion being controlled three-dimensional displacement platform by outer computer realizes printed material Powder gas is deposited at matrix diverse location;
Comprise vacuum (-tight) housing, its inside is provided with printhead, the second electron gun, three-dimensional displacement platform, and its outer setting has air pump 3 to make vacuum (-tight) housing keep the working environment of vacuum.
It is the technical characterstic utilizing electro beam physics vapour deposition that this utility model 3D prints, the printhead of 3D printer is a small-sized vacuum chamber, whole print procedure is also carry out in vacuum (-tight) housing, the nozzle of printhead controls its switch by the second electrohydraulic pressure control valve, and be furnished with the discharge that the first electrohydraulic pressure control valve is responsible for controlling residual gas, vacuum (-tight) housing is furnished with air pump can extract residual gas out to keep vacuum, different material powder particles sprays into cold-crucible by feed nozzle, and by first gun divergent bundle, material powder is distilled, the release of material gas is controlled by the switch of electrically-controlled valve, the material gas of release can cool deposition on matrix.Printhead coordinates and realizes material gas by carrying out displacement in a vacuum chamber with computer-controlled three-dimensional mobile print platform and print to complete 3D in the deposition of print platform specified point.
Above-mentioned 3D prints, and can print function-graded material and the composite of multiple material mixing as required, when printing multiple mixed materials, selected material should have good physics and chemical compatibility.
Above-mentioned 3D prints, and can to raise the efficiency, the object of saving resource according to the molten boiling point adjustment power output of electron gun of printed material and the material of crucible to reach.
Should control the pressure of material gas in printhead during printing, and print-head nozzle should be enough near apart from matrix, to ensure that material gas can not disperse after spraying.When gas pressure is excessive in printhead, another electrohydraulic pressure control valve release gas should be controlled and extracted out by air pump.
Described electrohydraulic pressure control valve body material should be pottery, and to adapt to the working environment of high temperature, the automatically controlled part of valve is outside printhead, and it is outer by its opening and closing of real time computer control to be connected to vacuum (-tight) housing.
Described matrix is fixed on three-dimensional displacement platform origin position, and three-dimensional displacement platform will to move it by computer and accurately control, and carries out visual precise manipulation by simulation software.
Beneficial effect:
1, the buildup of material principle based on electro beam physics vapour deposition technology is adopted, nearly all metal and ceramic material can deposit at relatively low temperature, and can multiple material used in combination, by control the composition of material, the energy of electron beam and other technological parameters can obtain desirable object.
2, electro beam physics vapour deposition technology is owing to directly becoming micro-molecular gas particle by materials vaporize, and is deposited as columanar structure, accurately can control material composition, and material combines fine and close, can overcome the defect that traditional 3D prints completely.In addition, electro beam physics vapour deposition technology in addition pollution-free, the thermal efficiency is high, chemical composition is easy to other advantages such as accurately control, is applicable to have the 3D of the complex situations of particular/special requirement to print to material property.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
This 3D print system is primarily of 12 part compositions, and its system composition schematic diagram as shown in Figure 1.
In figure,
1 represents feed appliance, and the material of conveying is Powdered, and multiple feeding port represents that this 3D print system can print different types of material powder;
The first computer shown in 21 controls the switch of the electrically-controlled valve of printhead,
Second computer shown in 22 controls the accurate location of the three-dimensional displacement platform of bearing substrate;
3 represent air pump, make it keep vacuum for the residual gas extracted out in vacuum (-tight) housing;
4 represent the vacuum (-tight) housing providing and print vacuum environment;
51 is first guns matrix being carried out to preheating, has two,
52 the second electron guns representing sublimator material powder, have 4,
Electron gun is straight Pierre's Si rifle, and focus voltage is 25kV, electronic beam current 2 ~ 3A;
The first electrohydraulic pressure control valve of 61 for ensureing in printhead residual gas in pressure security and release printhead,
The second electrohydraulic pressure control valve of 62, for controlling the release of material gas, coordinates with three-dimensional displacement platform and prints;
7 is feed points that material powder enters printhead;
8 is printheads; Printhead controls its internal pressure by two electrohydraulic pressure control valves and coordinates three-dimensional displacement platform to realize the deposition of matrix diverse location gas;
9 is water jacketed copper crucibles, and for loading material powder, the process of electron beam evaporation material powder occurs in crucible, and crucible holder skin is heat-barrier material, prevents recirculated water from making material gas be deposited on support; The cooling water circulation passage of cold-crucible is located at crucible holder internal layer, and is wrapped up by heat-barrier material;
10 is nozzles of printhead, prints for spraying material gas;
11 is three-dimensional displacement platforms, can accurately locate, and meets the demand that 3D prints;
12 is the matrixes for gas adventitious deposit.
Print procedure is as follows:
(1) print pre-treatment, comprise matrix, the cleaning of vacuum (-tight) housing and pretreatment etc., cleaning method has that cleaning agent cleans, chemical solvent cleaning, Ultrasonic Cleaning and icon bombardment cleaning etc., pretreatment comprise destatic, equipment installation etc.
(2) vacuumize, open electrically-controlled valve 6-1, vacuumize with air pump 3 pairs of vacuum (-tight) housings and printhead, be generally first slightly evacuated to more than 6.6Pa, after preheating, be evacuated to 0.006Pa half end vacuum again.
(3) preheating, is heated to temperature required with first gun to matrix.
(4) hydatogenesis, by feed point 7, material powder is sent in crucible 9,4 the second electron guns carry out bombardment to powder makes it distil, now the second electrohydraulic pressure control valve cuts out, when printhead internal gas pressure reaches certain value, the second electrohydraulic pressure control valve is opened, and prints and starts, three-dimensional displacement platform 11 moves by prototype under second computer controls, and gas is deposited at matrix 12 diverse location.
(5) cool pickup, matrix is cooled to after uniform temperature just can pickup, and after pickup, close vacuum (-tight) housing, be evacuated to 0.1Pa with air pump, air pump just can cut out air pump and cooling water after being cooled to allowable temperature.
Claims (1)
1., based on a 3D printing equipment for electron beam, it is characterized in that,
Comprise cold-crucible, the water circulation channel of cold-crucible is laid in crucible holder, outer with heat-barrier material parcel, cools deposition to prevent material gas on support;
Comprise feed appliance (1), be connected with feed nozzle (7) by its output of pipeline, for printed material powder is sent in printhead;
Comprise first gun, high temperature distillation is carried out to printed material powder;
Comprise printhead, its inside is provided with feed nozzle, first gun, cold-crucible, feed nozzle, first gun are positioned on cold-crucible, its outer setting has the first electrohydraulic pressure control valve, the second electrohydraulic pressure control valve for controlling the pressure of its inside, and the first electrohydraulic pressure control valve is arranged at printhead waist; Bottom cold-crucible, place is provided with the nozzle (10) of printhead, and the second electrohydraulic pressure control valve is installed on the nozzle of printhead;
Comprise the second electron gun, preheating is carried out to matrix (12);
Comprise three-dimensional displacement platform (11), be attached with matrix (12) on three-dimensional displacement platform, the motion being controlled three-dimensional displacement platform by outer computer realizes printed material Powder gas is deposited at matrix diverse location;
Comprise vacuum (-tight) housing, its inside is provided with printhead, the second electron gun, three-dimensional displacement platform, and its outer setting has air pump (3) to make vacuum (-tight) housing keep the working environment of vacuum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520444590.7U CN204773606U (en) | 2015-06-25 | 2015-06-25 | 3D printing device based on electron beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520444590.7U CN204773606U (en) | 2015-06-25 | 2015-06-25 | 3D printing device based on electron beam |
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| Publication Number | Publication Date |
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| CN204773606U true CN204773606U (en) | 2015-11-18 |
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| CN201520444590.7U Expired - Fee Related CN204773606U (en) | 2015-06-25 | 2015-06-25 | 3D printing device based on electron beam |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106166615A (en) * | 2016-08-31 | 2016-11-30 | 成都真火科技有限公司 | 3D printing device based on laminar flow plasma technology |
| CN106180715A (en) * | 2016-08-31 | 2016-12-07 | 成都真火科技有限公司 | The control system of a kind of laminar flow plasma 3D printing and method |
| CN111745306A (en) * | 2020-06-17 | 2020-10-09 | 同济大学 | Five-axis linkage operation control method for laser cutting |
| CN112045185A (en) * | 2020-08-24 | 2020-12-08 | 清华大学 | Method for preparing functionally graded material based on selective laser melting technology, computer-readable storage medium and electronic device |
| CN113580568A (en) * | 2021-07-29 | 2021-11-02 | 南京工业大学 | Plasma nanometer vibration material disk device |
-
2015
- 2015-06-25 CN CN201520444590.7U patent/CN204773606U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106166615A (en) * | 2016-08-31 | 2016-11-30 | 成都真火科技有限公司 | 3D printing device based on laminar flow plasma technology |
| CN106180715A (en) * | 2016-08-31 | 2016-12-07 | 成都真火科技有限公司 | The control system of a kind of laminar flow plasma 3D printing and method |
| CN106180715B (en) * | 2016-08-31 | 2018-08-21 | 成都真火科技有限公司 | A kind of control system and method for the 3D printing of laminar flow plasma |
| CN111745306A (en) * | 2020-06-17 | 2020-10-09 | 同济大学 | Five-axis linkage operation control method for laser cutting |
| CN111745306B (en) * | 2020-06-17 | 2021-03-26 | 同济大学 | Five-axis linkage operation control method for laser cutting |
| CN112045185A (en) * | 2020-08-24 | 2020-12-08 | 清华大学 | Method for preparing functionally graded material based on selective laser melting technology, computer-readable storage medium and electronic device |
| CN112045185B (en) * | 2020-08-24 | 2022-03-18 | 清华大学 | Method for preparing functionally graded material based on selective laser melting technology, computer-readable storage medium and electronic device |
| CN113580568A (en) * | 2021-07-29 | 2021-11-02 | 南京工业大学 | Plasma nanometer vibration material disk device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 Termination date: 20180625 |