CN105642900A - Electrostatic surface laying layer system manufactured through powder bed additive - Google Patents
Electrostatic surface laying layer system manufactured through powder bed additive Download PDFInfo
- Publication number
- CN105642900A CN105642900A CN201610182744.9A CN201610182744A CN105642900A CN 105642900 A CN105642900 A CN 105642900A CN 201610182744 A CN201610182744 A CN 201610182744A CN 105642900 A CN105642900 A CN 105642900A
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- powder
- electrode press
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- electrode
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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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/12—Both compacting and sintering
- B22F3/16—Both compacting and sintering in successive or repeated steps
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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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/003—Apparatus, e.g. furnaces
-
- 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
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
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- 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 invention provides an electrostatic surface laying layer system manufactured through a powder bed additive. The electrostatic surface laying layer system comprises a formed working table top, a powder supply cylinder and a forming cylinder are arranged below the working table top, a truss mechanism is connected above the working table top through connection plates, the truss mechanism is configured with a sliding rail, the sliding rail is matched with a sliding block, a guide rod is connected to the sliding block, the bottom of the guide rod is connected with an electrode powder pressing plate, the sliding block is controlled by a stepping motor connected to the end of the sliding rail, a ceramic plate and a resistance wire are embedded into an electrode powder pressing plate body of the electrode powder pressing plate, and the ceramic plate is located above the resistance wire. According to the electrostatic surface laying layer system, a mode of electrostatic attraction force is adopted, and charged powder is densely adsorbed to the electrode powder pressing plate, so that the powder is compressed to the surface of a formed piece, and the effect of improving density of parts is achieved; after powder pressing is achieved, the electrode powder pressing plate preheats each layer of powder and the formed piece below the powder, and the phenomena of buckling deformation and the like are avoided; the mobile electrostatic surface laying layer system is high in speed, the powder laying amount is precisely controlled, and production efficiency is improved.
Description
Technical field
The present invention relates to increasing material and manufacture field, increase, particularly to a kind of powder bed, the electrostatic face laying system that material manufactures.
Background technology
Powder bed increases in material manufacturing technology, the quality of forming quality is closely related with paving opaque amount and pre-heat effect, and powder bed in the market increases material and manufactures equipment, and some is that the bottom to shaped region preheats, but being as the increase of shaping layer number, pre-heat effect will be more and more not notable; The equipment also having is to have preheated for powder cylinder, but shaped region does not have especially significant improvement. And preheating time is longer, affect the efficiency of the whole course of processing, therefore there is certain limitation in Prototyping Metal Parts process.
In the prior art, power spreading device generally adopts roller or scraper plate simultaneously, and during roller paving powder, rod has rotary motion relative to powder surface, it is easy to produce Electrostatic Absorption and viscous powder phenomenon occurs, and causes that paving powder work surface thickness differs; Scraper plate paving powder can make up the defect of roller, but the limitation due to flow of powder, paving powder effect is also insufficient to densification, generally leaves gap, thus it is poor to easily cause the part compactness after shaping between granule, and in forming process, when drip molding surface is protruding to some extent, scraper plate can be damaged to some extent, thus affecting paving powder effect, scraper plate damages simultaneously needs often to be replaced, increase cost of wasting time and energy.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, it is an object of the invention to provide a kind of powder bed and increase the electrostatic face laying system that material manufactures, it is achieved paving powder and the rapidly and efficiently rate that simultaneously every layer of powder carried out of even compact preheat, and paving powder process is rapidly and efficiently.
To achieve these goals, the present invention adopts the following technical scheme that
A kind of powder bed increases the electrostatic face laying system that material manufactures, including the work top 1 shaped, work top 1 is connected with one for powder cylinder 2 and a formation cylinder 3, work top 1 is connected to truss mechanism 5 above through connecting plate 4, truss mechanism 5 is configured with slide rail 8, slide rail 8 and slide block 10 coordinate, slide block 10 is connected to guide rod 11, being connected to electrode press-powder plate 9 bottom guide rod 11, slide block 10 is controlled by the motor 7 being connected to slide rail 8 end.
The electrode press-powder plate body 9c of described electrode press-powder plate 9 is embedded with ceramic wafer 9a and resistance wire 9b, and ceramic wafer 9a is positioned at the top of resistance wire 9b.
Described a kind of powder bed increases the quick forming method of the electrostatic face laying system that material manufactures, and comprises the following steps:
Step one: static electrification powder is placed on in powder cylinder 2, electrode press-powder plate 9 is connected with high voltage power supply, the polarity that electrode press-powder plate 9 has and the electrically charged opposite polarity of powder, powder can tightly be adsorbed in the lower surface of electrode press-powder plate 9;
Step 2: electrode press-powder plate 9 moves to for above powder cylinder 2, by static electrification powder adsorption on electrode press-powder plate 9, then slide block 10 and guide rail 11 is utilized to be moved up by electrode press-powder plate 9, the surface by motor 7 and slide rail 8, electrode press-powder plate 9 moved to formation cylinder 3 afterwards, and then move down, after static electrification powder is laid in drip molding surface, continues to move down static electrification powder is carried out compacting;
Step 3: disconnect the connection of electrode press-powder plate 9 and high voltage power supply, to the resistance wire 9b energising that electrode press-powder plate 9 is embedded, is heated electrode press-powder plate 9, is preheated by the conduction of heat powder to compacting and drip molding;
Step 4: electrode press-powder plate 9 is retracted section start, thermal source is scanned fusing shaping to laying one layer of good powder of compacting;
Step 5: the distance of certain thickness that moves up for powder cylinder 2, formation cylinder 3 moves down the distance of a thickness;
Step 6: repeat the above steps two, to step 5, successively moves in circles, finally shapes whole part.
The quick forming method of the electrostatic face laying system that described a kind of powder bed increases material manufacture in an inert atmosphere or carries out under vacuum environment.
Carrying out temperature survey by temperature sensor after preheating in described step 3, after reaching design temperature, preheating closed, wherein temperature sensor adopts flake to be attached at the lower surface of electrode press-powder plate 9.
The method have the advantages that
Owing to adopting the mode of electrostatic attraction, it is possible to charged powder is adsorbed on closely on electrode press-powder plate, thus by powder pressing in drip molding surface, reaching to improve the effect of part consistency; Due to after completing press-powder, each layer of powder and following drip molding can be preheated by electrode press-powder plate, so it is capable of each layer to shaped region paving powder forming face and following drip molding effectively preheats, and then avoid the phenomenons such as the residual stress and the buckling deformation that cause because temperature field is uneven in forming process; Owing to portable electrostatic face laying system is fast compared to traditional scraper plate or pulley type paving powder mode speed, moving process need not consider the mobility of powder, therefore can quickly finish paving powder process, and can realize accurately controlling paving powder amount, improve production efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of present system.
Fig. 2 is the structural representation of electrode press-powder plate in present system.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail.
With reference to Fig. 1, a kind of powder bed increases the electrostatic face laying system that material manufactures, including the work top 1 shaped, work top 1 is connected with one for powder cylinder 2 and a formation cylinder 3, work top 1 is connected to truss mechanism 5 above through connecting plate 4, floor 6 it is connected between connecting plate 4 and truss mechanism 5, truss mechanism 5 is configured with slide rail 8, slide rail 8 and slide block 10 coordinate, slide block 10 is connected to guide rod 11, electrode press-powder plate 9 it is connected to bottom guide rod 11, slide block 10 and guide rod 11 realize electrode press-powder plate 9 and move up and down, slide block 10 is controlled by the motor 7 being connected to slide rail 8 end, realize electrode press-powder plate 9 to move left and right.
With reference to Fig. 2, the electrode press-powder plate body 9c of described electrode press-powder plate 9 is embedded with ceramic wafer 9a and resistance wire 9b, ceramic wafer 9a is positioned at the top of resistance wire 9b, after ceramic wafer 9a prevents resistance wire 9b heating, heat upwards conducts to other parts, cause damage, heat conduction is carried out, by the lower surface of electrode press-powder plate 9, by heat conduction of heat to powder and drip molding below after resistance wire 9b heating.
Described a kind of powder bed increases the quick forming method of the electrostatic face laying system that material manufactures, and comprises the following steps:
Step one: static electrification powder is placed on in powder cylinder 2, electrode press-powder plate 9 is connected with high voltage power supply, the polarity that electrode press-powder plate 9 has and the electrically charged opposite polarity of powder, powder can tightly be adsorbed in the lower surface of electrode press-powder plate 9;
Step 2: electrode press-powder plate 9 moves to for above powder cylinder 2, by static electrification powder adsorption on electrode press-powder plate 9, then slide block 10 and guide rail 11 is utilized to be moved up by electrode press-powder plate 9, the surface by motor 7 and slide rail 8, electrode press-powder plate 9 moved to formation cylinder 3 afterwards, and then move down, after static electrification powder is laid in drip molding surface, continues to move down static electrification powder is carried out compacting;
Step 3: disconnect the connection of electrode press-powder plate 9 and high voltage power supply, by resistance wire 9b energising embedded for electrode press-powder plate 9, is heated electrode press-powder plate 9, is preheated by the conduction of heat powder to compacting and drip molding;
Step 4: electrode press-powder plate 9 is retracted section start, thermal source is scanned fusing shaping to laying one layer of good powder of compacting;
Step 5: the distance of certain thickness that moves up for powder cylinder 2, formation cylinder 3 moves down the distance of a thickness;
Step 6: repeat the above steps two, to step 5, successively moves in circles, finally shapes whole part.
Claims (5)
1. a powder bed increases the electrostatic face laying system that material manufactures, including the work top (1) shaped, work top (1) is connected with one for powder cylinder (2) and a formation cylinder (3), it is characterized in that: work top (1) is connected to truss mechanism (5) above through connecting plate (4), truss mechanism (5) is configured with slide rail (8), slide rail (8) and slide block (10) coordinate, slide block (10) is connected to guide rod (11), guide rod (11) bottom is connected to electrode press-powder plate (9), slide block (10) is controlled by the motor (7) being connected to slide rail (8) end.
2. a kind of powder bed according to claim 1 increases the electrostatic face laying system that material manufactures, it is characterized in that: electrode press-powder plate body (9c) of described electrode press-powder plate (9) is embedded with ceramic wafer (9a) and resistance wire (9b), and ceramic wafer (9a) is positioned at the top of resistance wire (9b).
3. a kind of powder bed according to claim 1 increases the quick forming method of the electrostatic face laying system that material manufactures, it is characterised in that comprise the following steps:
Step one: static electrification powder is placed on in powder cylinder (2), electrode press-powder plate (9) is connected with high voltage power supply, the polarity that electrode press-powder plate (9) has and the electrically charged opposite polarity of powder, powder can tightly be adsorbed in the lower surface of electrode press-powder plate (9);
Step 2: electrode press-powder plate (9) is mobile to for powder cylinder (2) top, by static electrification powder adsorption on electrode press-powder plate (9), then slide block (10) and guide rail (11) is utilized to be moved up by electrode press-powder plate (9), by motor (7) and slide rail (8), electrode press-powder plate (9) is moved the surface to formation cylinder (3) afterwards, and then move down, after static electrification powder is laid in drip molding surface, continues to move down static electrification powder is carried out compacting;
Step 3: disconnect the connection of electrode press-powder plate (9) and high voltage power supply, to resistance wire (9b) energising that electrode press-powder plate (9) is embedded, electrode press-powder plate (9) is heated, is preheated by the conduction of heat powder to compacting and drip molding;
Step 4: electrode press-powder plate (9) is retracted section start, thermal source is scanned fusing shaping to laying one layer of good powder of compacting;
Step 5: the distance of certain thickness that moves up for powder cylinder (2), formation cylinder (3) moves down the distance of a thickness;
Step 6: repeat the above steps two, to step 5, successively moves in circles, finally shapes whole part.
4. a kind of powder bed according to claim 3 increases the quick forming method of the electrostatic face laying system that material manufactures, it is characterised in that: the quick forming method of the electrostatic face laying system that described a kind of powder bed increases material manufacture in an inert atmosphere or carries out under vacuum environment.
5. a kind of powder bed according to claim 3 increases the quick forming method of the electrostatic face laying system that material manufactures, it is characterized in that: described step 3 carries out temperature survey by temperature sensor after preheating, after reaching design temperature, preheating being closed, wherein temperature sensor adopts flake to be attached at the lower surface of electrode press-powder plate (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610182744.9A CN105642900A (en) | 2016-03-28 | 2016-03-28 | Electrostatic surface laying layer system manufactured through powder bed additive |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610182744.9A CN105642900A (en) | 2016-03-28 | 2016-03-28 | Electrostatic surface laying layer system manufactured through powder bed additive |
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| CN105642900A true CN105642900A (en) | 2016-06-08 |
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| CN201610182744.9A Pending CN105642900A (en) | 2016-03-28 | 2016-03-28 | Electrostatic surface laying layer system manufactured through powder bed additive |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106513577A (en) * | 2016-10-28 | 2017-03-22 | 宁夏共享模具有限公司 | 3d printing device |
| CN106914618A (en) * | 2017-05-03 | 2017-07-04 | 广东工业大学 | A kind of laser sintered increasing material process equipment |
| CN107626921A (en) * | 2017-09-26 | 2018-01-26 | 芜湖天梦信息科技有限公司 | Melt equipment in a kind of selective laser |
| CN107953551A (en) * | 2016-10-17 | 2018-04-24 | 波音公司 | Using pressure wave by dusty material 3D printing object |
| CN108971482A (en) * | 2018-07-04 | 2018-12-11 | 苏州智能制造研究院有限公司 | A kind of planar array column magnetic control increasing material manufacturing method |
| CN109202078A (en) * | 2018-09-26 | 2019-01-15 | 昆明理工大学 | A kind of compacting of SLM powder bed and power spreading device |
| CN109822091A (en) * | 2019-03-01 | 2019-05-31 | 西安科技大学 | The molding rapid molding device of close said magnetic powder material adsorption plane and method |
| US11273598B2 (en) | 2020-03-18 | 2022-03-15 | Powder Motion Labs, LLC | Powder bed recoater |
| US11407172B2 (en) | 2020-03-18 | 2022-08-09 | Powder Motion Labs, LLC | Recoater using alternating current to planarize top surface of powder bed |
| US11612940B2 (en) | 2020-03-18 | 2023-03-28 | Powder Motion Labs, LLC | Powder bed recoater |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107953551A (en) * | 2016-10-17 | 2018-04-24 | 波音公司 | Using pressure wave by dusty material 3D printing object |
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| CN106914618A (en) * | 2017-05-03 | 2017-07-04 | 广东工业大学 | A kind of laser sintered increasing material process equipment |
| CN107626921A (en) * | 2017-09-26 | 2018-01-26 | 芜湖天梦信息科技有限公司 | Melt equipment in a kind of selective laser |
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| CN109202078A (en) * | 2018-09-26 | 2019-01-15 | 昆明理工大学 | A kind of compacting of SLM powder bed and power spreading device |
| CN109822091A (en) * | 2019-03-01 | 2019-05-31 | 西安科技大学 | The molding rapid molding device of close said magnetic powder material adsorption plane and method |
| US11273598B2 (en) | 2020-03-18 | 2022-03-15 | Powder Motion Labs, LLC | Powder bed recoater |
| US11407172B2 (en) | 2020-03-18 | 2022-08-09 | Powder Motion Labs, LLC | Recoater using alternating current to planarize top surface of powder bed |
| US11607846B2 (en) | 2020-03-18 | 2023-03-21 | Powder Motion Labs, LLC | Recoater using alternating current to planarize top surface of powder bed |
| US11612940B2 (en) | 2020-03-18 | 2023-03-28 | Powder Motion Labs, LLC | Powder bed recoater |
| US11772164B2 (en) | 2020-03-18 | 2023-10-03 | Powder Motion Labs, LLC | Powder bed recoater |
| US11872754B2 (en) | 2020-03-18 | 2024-01-16 | Powder Motion Labs, LLC | Recoater using alternating current to planarize top surface of powder bed |
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Application publication date: 20160608 |