CN108188399A - A kind of selective laser melting shapes feeding device - Google Patents
A kind of selective laser melting shapes feeding device Download PDFInfo
- Publication number
- CN108188399A CN108188399A CN201810270476.5A CN201810270476A CN108188399A CN 108188399 A CN108188399 A CN 108188399A CN 201810270476 A CN201810270476 A CN 201810270476A CN 108188399 A CN108188399 A CN 108188399A
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- CN
- China
- Prior art keywords
- feeding storehouse
- feeding
- selective laser
- laser melting
- storage tank
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/20—Direct sintering or melting
- B22F10/28—Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/60—Planarisation devices; Compression devices
- B22F12/67—Blades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/70—Recycling
- B22F10/73—Recycling of powder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/40—Radiation means
- B22F12/49—Scanners
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The present invention provides a kind of selective laser melting forming feeding device, the device includes storage tank, feeding storehouse, blender, orientation temperature regulating device, liquid viscosity measuring device and waste material recovery device, storage tank and feeding storehouse are located at the rear portion of selective laser melting forming cavity, temperature measuring equipment is installed inside storage tank, lower section sets feeding storehouse, blender and liquid viscosity measuring device are installed inside feeding storehouse, orientation temperature regulating device is mounted on the stent at rear portion, the opposite side of selective laser melting forming cavity is provided with waste material recovery device；The present apparatus uses organic solvent batch mixing method, metal powder, reinforcement are mixed in organic solvent, metal powder is obtained uniformly to mix with reinforcement, and the organic solvent pulps of good fluidity, SLM forming printings are carried out using organic solvent pulps, powdering density and the consistency of finished product are improved, can prepare and meet aerospace high-performance metal base composite material parts.
Description
Technical field
The invention belongs to 3D printing technique field, be related to a kind of feeding device, specifically a kind of selective laser melting into
Shape feeding device.
Background technology
3D printing（Increasing material manufacturing）Technology is to manufacture entity using the method that material successively adds up by CAD design datas
The technology of part, 3D printing technique are related to CAD/CAM, mechanical engineering, Layered Manufacturing Technology, laser technology, Numeric Control Technology, precision
Multiple subjects such as Servo Drive Technology's and new material technology；3D printings are not required to cutting material, are also not required to mold, can make in batches
Make, can also remote control, be particularly suitable for complicated part, manufacturing speed is fast, with short production cycle, reduce development cost and
Risk, it is considered to be the third time industrial revolution.
Selective laser melting forming technique（SLM）It is one of most potential technology of 3D printing technique field, it should
Technology directly melts metal powder using high energy beam laser, can shape high-performance metal part, when SLM shapes on computers first
The threedimensional model of part is designed, slicing delamination then is carried out to the threedimensional model, obtains the two-dimensional silhouette data in each section, with
The data handled are imported into former afterwards；Powder feeding cylinder first rises certain altitude during work, by scraper by powder in moulding cylinder
Upper uniform layer overlay, computer control the two-dimensional scan track of laser beam according to the hierarchical model of prototype, selectively melt
Frozen metal dusty material is to form part level.After this layer of profile scan, repeat the above steps and carry out down
The laser fusion forming of one level, until entire part completion of processing is into 3-dimensional metal part；The technology can manufacture complex-shaped
Metal product, drip molding mechanical property is good, precision is high, has important application in fields such as medical treatment, aerospace, military affairs.
With being constantly progressive for material science research, the single metal material of ingredient is difficult to meet practical application to material
The requirement of energy, thus metal-base composites gradually becomes the focus of people's research.Metal-base composites is with ceramics and carbon
Material is added to for reinforced phase in metallic matrix, so as to obtain the composite material of excellent properties.However to gold in SLM forming processes
It is more demanding to belong to powder, it is desirable that metal powder sphericity is high, good fluidity, and particle diameter distribution is uniform（Between 15 ~ 45 μm）.In metal
Reinforcement is added in powder, it will influence metal powder mobility, SLM drip molding structure properties are directly affected, so as to limit
Metal-base composites is in the application of SLM molding fields.
Invention content
The present invention proposes a kind of selective laser melting forming feeding device, which is mainly mixed using organic solvent
Material method mixes metal powder, reinforcement in organic solvent, obtains metal powder and is uniformly mixed with reinforcement, and flows
Then the organic solvent pulps are carried out SLM formings by the good organic solvent pulps of dynamic property.
The used to achieve these goals technical solution of the present invention is：A kind of selective laser melting forming feed dress
It puts, including storage tank, feeding storehouse, blender, orientation temperature regulating device, liquid viscosity measuring device and waste material recovery device, institute
State storage tank and feeding storehouse be located at rear portion in selective laser melting forming cavity, storage tank for storing containing metal powder and
The organic solvent pulps of reinforcement；Temperature measuring equipment is installed, the lower section setting feeding storehouse of storage tank, in feeding storehouse inside storage tank
Portion is equipped with blender and liquid viscosity measuring device, and orientation temperature regulating device is mounted on the stent at the rear portion of feeding storehouse,
Electromagnetic switch on the feeding door of feeding storehouse lower part is installed and feeding is completed in sliding block cooperation, is additionally provided with and scrapes below feeding storehouse
Knife for taking away the slurry flowed out from feeding storehouse, and is laid on print platform；Forepart in selective laser melting forming cavity
Waste material recovery device is provided with, the slurry recovery port of waste material recovery device is connect with selective laser melting forming cavity, selectivity
Protection gas air inlet and protection gas gas outlet are also respectively provided at left and right sides of laser fusion forming cavity, for ensuring to protect gas
Cycle of the body in forming cavity.
Preferably, the material of the storage tank is aluminium alloy, and storage tank necking angle is 63 °, and storage tank is with feeding storehouse
It is tightly connected, sealing grade is IP67；In storage tank SLM formings organic solvent pulps by organic solvent, reinforced phase particle and
Alloy powder forms, and organic solvent mainly includes ethyl alcohol, acetone, NMP stearic acid, acrylic acid and silane.
Preferably, the organic solvent pulps blender rotating speed is between 20-30r/min, and rotating stirring is positive and negative to walk around
Frequency is changed as 12 times/hour, stirring-head is three layers of titanium alloy spiral blade；The orientation temperature control device will be organic molten in feeding storehouse
Agent slurry temperature is controlled between 15-90 DEG C.
Preferably, the device for measuring viscosity constantly measures the viscosity of organic solvent pulps, and signal is fed back to control
System, control system remind operator that change slurry composition starts orientation temperature regulating device simultaneously, adjust slurry temperature, protect viscosity
It holds in 0.8-1.5Pa.s.
Preferably, electromagnetic switch is installed, electromagnetic switch is magnetic after being powered, and has and inhales iron on the side wall of feeding storehouse lower part
Function.Feeding storehouse bottom is equipped with opening, and sliding block is mounted in the opening of feeding storehouse bottom, which is sealed or opened.
Spring is installed, spring other side is mounted on feeding storehouse side wall behind sliding block.Electromagnetic switch powers off, and sliding block is pulled back by spring,
Open the opening of feeding storehouse bottom.Electromagnetic switch is powered, and the suction that sliding block can be tightly is in electromagnetic switch, the opening of feeding storehouse bottom
It closes.
Compared with prior art, the present invention has following technique effect：
（1）The present apparatus, which breaches existing SLM device, can only print the limitation for the metal powder for having processing conditions, can directly add
The slurry of work flowable state；
（2）The present apparatus can prepare the SLM formings organic solvent pulps for including metal powder and reinforcement, realize Metal Substrate and answer
The quick SLM formings of condensation material, meet aerospace high-performance metal base composite material parts so as to prepare；
（3）The organic solvent pulps realized using this feeding device are printed, and are improved powdering density, can be effectively improved into
The consistency of product.
Description of the drawings
Fig. 1 is the front schematic view of selective laser melting forming feeding device；
Fig. 2 is the side schematic view of selective laser melting forming feeding device；
In figure：1- storage tanks；2- feeding storehouses；3- protects gas air inlet；4- scrapers；5- samples；6- print platforms；7- selectively swashs
Light melts forming cavity；8- blenders；9- electromagnetic switch；10- protection gas gas outlet；11- stents；12- orients temperature regulating device；13-
Sliding block；14- galvanometers；15- lens；16- slurry recovery ports；17- waste recovery systems；18- temperature measuring equipments；19- liquid viscosities are surveyed
Measure device；20- control systems；21- springs.
Specific embodiment
In order to which technical problems, technical solutions and advantages to be solved are more clearly understood, tie below
Attached drawing is closed the present invention is further elaborated.
A kind of selective laser melting shapes feeding device, as illustrated in fig. 1 and 2, including storage tank 1, feeding storehouse 2, stirring
Machine 8, the control system 20 for orienting temperature regulating device 12, liquid viscosity measuring device 19, waste material recovery device 17 and whole equipment,
The storage tank 1 and feeding storehouse 2 are located at the rear portion of selective laser melting forming cavity 7, and storage tank 1 contains metal powder for storing
End and the organic solvent pulps of reinforcement, wherein organic solvent mainly include ethyl alcohol, acetone, NMP stearic acid, acrylic acid and silicon
Alkane, reinforcement are reinforced phase particle, and the material of storage tank 1 is aluminium alloy, and the necking angle of storage tank 1 is 63 °；In storage tank 1
Portion is equipped with temperature measuring equipment 18, and temperature measurement error is ± 1 DEG C；1 lower section installation feeding storehouse 2 of storage tank, storage tank 1 are with feeding storehouse 2
It is tightly connected, sealing grade is IP67；Installation organic solvent pulp blender 8 and liquid viscosity measuring device 19 in feeding storehouse 2；
The stirring-head of organic solvent pulps blender 8 is three layers of titanium alloy spiral blade；It is equipped on the stent 11 at the rear portion of feeding storehouse 2
Temperature regulating device 12 is oriented, in the case where orientation temperature regulating device 12 acts on, the control of organic solvent pulps temperature is at 15-90 DEG C in feeding storehouse 2
Between, and viscosity is maintained at 0.8-1.5Pa.s.Electromagnetic switch 9 is installed, electromagnetic switch 9 is logical on the side wall of 2 lower part of feeding storehouse
It is magnetic after electricity, has the function of to inhale iron.Feeding storehouse bottom is equipped with opening, and sliding block 13 is mounted in the opening of feeding storehouse bottom, right
The opening is sealed or opens.Sliding block 13 installs spring 21 below, and 21 other side of spring is mounted on feeding storehouse side wall.Electromagnetism
The lower section of switch 9 and sliding block 13 is additionally provided with scraper 4, and the slurry flowed out from feeding storehouse bottom opening can be laid in by scraper 4 to be beaten
It prints on platform 6；The forepart of selective laser melting forming cavity 7 is provided with waste material recovery device 17, the slurry of waste material recovery device 17
Material recovery port 16 is connect with selective laser melting forming cavity 7, and the left and right sides of selective laser melting forming cavity 7 is also set respectively
Protection gas air inlet 3 and protection gas gas outlet 10 are equipped with, for ensuring protective gas in selective laser melting forming cavity 7
Cycle.
Scanning galvanometer 14 and lens 15 are installed at 7 top of selective laser melting forming cavity, for gathering to laser
Burnt and movement locus is controlled, and realizes the SLM formings of organic solvent pulps, printed sample 5.Blender 8, device for measuring viscosity
19th, temperature regulating device 12, electromagnetic switch 9, the protection gas circulatory system is oriented to connect with control system 20.
The operation principle of the present apparatus is：The organic solvent pulps that will be made of organic solvent, metal powder, reinforcement particle
It is fitted into storage tank 1, under the effect of gravity organic solvent pulps inflow feeding storehouse 2, the blender 8 in feeding storehouse 2 constantly carries out
Stirring, for rotating speed between 20-30r/min, rotating stirring, rotating conversion frequency is 12 times/hour；Pacify 1 inside of storage tank
The temperature measuring equipment 18 of dress constantly measures the temperature of organic solvent pulps in storage tank 1, when its temperature exceeds 15-90 DEG C of range,
Signal is fed back into control system 20, so as to which control system 20 starts orientation temperature regulating device 12, in storage tank 1 and feeding storehouse 2
Organic solvent pulps be heated or cooled, keep it in the range of 15-90 DEG C.Device for measuring viscosity 19 in feeding storehouse 2
The viscosity of organic solvent pulps is constantly measured, keeps it in 0.8-1.5Pa.s, it is artificial to adjust when below or above this viscosity
Its composition proportion is saved, while control system starts orientation temperature regulating device 12, and the organic solvent in storage tank 1 and feeding storehouse 2 is starched
Material is heated or cooled, and meets the requirements its viscosity, when slurry meets forming requirements in feeding storehouse, scraper 4 passes through electromagnetism
After switch 9, electromagnetic switch 9 powers off, and sliding block 13 is pulled back by spring 21 and opens feeding storehouse bottom opening, and slurry is from feeding storehouse bottom
Opening outflow.Power-off 5 seconds after, electromagnetic switch 9 is powered, sliding block 13 by suction tightly in electromagnetic switch 9, feeding door feeding storehouse
Bottom opening is sealed by bad block 13.The slurry of outflow is taken away by scraper 4, is laid on print platform 6.Under control system effect
Laser is focused for scanning galvanometer 14 and lens 15 and movement locus controls, and realize the SLM formings of organic solvent pulps,
The printing of sample 5 is carried out, extra organic solvent pulps waste material is flowed by slurry recovery port 16 in waste material recovery device 17.
Finally illustrate, embodiment of above is only the preferred technical solution of the present invention, be not used to the present invention into
Row any restrictions.To those skilled in the art, the present invention can have any change and variation.All spirit in the present invention
Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of selective laser melting shapes feeding device, it is characterised in that：Including storage tank, feeding storehouse, blender, orientation
Temperature regulating device, liquid viscosity measuring device and waste material recovery device, the storage tank and feeding storehouse are melted positioned at selective laser
The rear portion of shape intracavitary is melted into, storage tank is for organic solvent pulps of the storage containing metal powder and reinforcement；Inside storage tank
Temperature measuring equipment is installed, the lower section of storage tank sets feeding storehouse, blender and liquid viscosity measuring dress are equipped with inside feeding storehouse
It puts, orientation temperature regulating device is mounted on the stent at the rear portion of feeding storehouse, electricity is installed on the feeding door of feeding storehouse lower part
Feeding is completed in magnetic switch and sliding block cooperation, and scraper is additionally provided with below feeding storehouse, for taking away the slurry flowed out from feeding storehouse,
And it is laid on print platform；Forepart in selective laser melting forming cavity is provided with waste material recovery device, waste recovery dress
The slurry recovery port put is connect with selective laser melting forming cavity, and the left and right sides of selective laser melting forming cavity is also distinguished
Protection gas air inlet and protection gas gas outlet are provided with, for ensuring cycle of the protective gas in forming cavity.
2. a kind of selective laser melting forming feeding device according to claim 1, it is characterised in that：The storage tank
Material for aluminium alloy, storage tank necking angle is 63 °, and for storage tank with feeding storehouse to be tightly connected, sealing grade is IP67.
3. a kind of selective laser melting forming feeding device according to claim 1, it is characterised in that：The blender
Rotating speed between 20-30r/min, rotating stirring, rotating conversion frequency be 12 times/hour, the stirring of the blender
Head is three layers of titanium alloy spiral blade.
4. a kind of selective laser melting forming feeding device according to claim 1, it is characterised in that：The orientation control
Warm device can control the temperature of organic solvent pulps in feeding storehouse between 15-90 DEG C.
5. a kind of selective laser melting forming feeding device according to claim 1, it is characterised in that：The viscosity is surveyed
Amount device constantly measures the viscosity of organic solvent pulps, and signal is fed back to control system, and control system, which calculates, changes slurry
Composition parameters start orientation temperature regulating device simultaneously, adjust slurry temperature, slurry viscosity is made to be maintained at 0.8-1.5Pa.s.
6. a kind of selective laser melting forming feeding device according to claim 1, it is characterised in that：Feeding storehouse lower part
Side wall on electromagnetic switch is installed, electromagnetic switch is magnetic after being powered, and has the function of to inhale iron, and feeding storehouse bottom, which is equipped with, to be open,
Sliding block is mounted in the opening of feeding storehouse bottom, which is sealed or opened, spring is installed behind sliding block, spring is in addition
Side is mounted on feeding storehouse side wall, electromagnetic switch power-off, and sliding block is pulled back by spring, opens the opening of feeding storehouse bottom, electromagnetism
Switch is powered, and in electromagnetic switch, the opening of feeding storehouse bottom is closed for the suction that sliding block can be tightly.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2017113805089 | 2017-12-20 | ||
| CN201711380508 | 2017-12-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108188399A true CN108188399A (en) | 2018-06-22 |
Family
ID=62596331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810270476.5A Pending CN108188399A (en) | 2017-12-20 | 2018-03-29 | A kind of selective laser melting shapes feeding device |
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| CN (1) | CN108188399A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110893459A (en) * | 2018-08-24 | 2020-03-20 | 通用汽车环球科技运作有限责任公司 | Spreadable powder slurry for additive manufacturing |
| CN111300815A (en) * | 2019-12-02 | 2020-06-19 | 广州黑格智造信息科技有限公司 | Feeding device and three-dimensional printer |
| CN112496351A (en) * | 2021-02-05 | 2021-03-16 | 西安赛隆金属材料有限责任公司 | Powder bed electron beam additive manufacturing equipment and manufacturing method |
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| US20170120513A1 (en) * | 2015-10-29 | 2017-05-04 | Raytheon Company | Material deposition system for additive manufacturing |
| CN206484898U (en) * | 2016-12-29 | 2017-09-12 | 中国科学院深圳先进技术研究院 | 3D printing shower nozzle and intelligent control 3D printing shower nozzle |
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Application publication date: 20180622 |
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