CN108971482A - A kind of planar array column magnetic control increasing material manufacturing method - Google Patents
A kind of planar array column magnetic control increasing material manufacturing method Download PDFInfo
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- CN108971482A CN108971482A CN201810722046.2A CN201810722046A CN108971482A CN 108971482 A CN108971482 A CN 108971482A CN 201810722046 A CN201810722046 A CN 201810722046A CN 108971482 A CN108971482 A CN 108971482A
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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
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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
- B22F10/10—Formation of a green body
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- 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
- B33Y10/00—Processes of additive manufacturing
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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
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Abstract
The invention discloses a kind of planar array column magnetic control increasing material manufacturing methods, this method comprises the following steps: establishing product entity geometrical model, product entity geometrical model is imported and carries out hierarchy slicing processing in the increasing material manufacturing CAM system of computer, the slice printed to needs is analyzed；A magnetic field straight up is generated in space to adsorb iron powder；In molded area, release magnetic force makes iron powder fall naturally；Bonding agent is coated on the surface of molded area's product to be bonded iron powder；It moves in circles, prints in layer, until product forms completely；The invention enables the product that can not need to support, can print multiple material when the formed product period greatly speeds up, forms, complex product can be manufactured, while equipment cost is also cheaper.Therefore, the present invention is with a wide range of applications as a kind of novel increasing material manufacturing method.
Description
Technical field
The invention belongs to material increasing field more particularly to magnet controlled bonding increasing material manufacturing methods.
Background technique
Compared to traditional processing mode, 3D printing technique by 3D solid processing become by point to line, by line to face, by face to
The discrete dynamics models forming process of body, significantly reduces manufacture complexity.3D printing technique breaches biography at the beginning of development first
Technical bottleneck of the manufacturing technology of uniting in terms of shape complexity, can quickly produce traditional handicraft and be difficult to, can not even add
The complicated shape and architectural characteristic of work.With the continuous development of 3D printing technique, modern 3D printing technique beyond tradition list
The limitation of material homogeneous processing technology breaks through following 3 complexity: may span across multiple scales and directly manufacture；Functional complexity；Increase material
Manufacture can complete the manufacture of functional structure during time processing, even omit assembling process to simplify.
Increasing material manufacturing is a kind of rapid shaping technique, based on digital model file, carries out slicing treatment, will be powdered
The technology that material or polymer fluid construct object by successively stacking bonding way, produces in design, building, engineering, medical treatment
The systems such as industry are widely applied.Increasing material manufacturing main technical principle includes fusion sediment (FDM), stereolithography apparatus (SLA), choosing
Selecting property laser sintered (SLS), stacking manufacture (LOM) etc..
Thermoplasticity silk material generally melts it rapidly simultaneously by the spray head that wire feeder is sent to heating by fusion sediment (FDM)
It squeezes out, while forming opposite three-dimensional translating under control of the computer, between spray head and forming workbench, the melt of extrusion exists
The motion path generated by computer control is left on workbench, which completes in a manner of scanning to printout interface information
Reflection, a thin layer material is just generated after being quickly cooled down, extrude later rising or workbench decline a fixed height (and
Hierarchy slicing thickness), material is successively accumulated in a manner of scanning filling for continuation until entire entity forming finishes.FDM technique energy
It is compatible with a plurality of types of materials and replacement is convenient, maintenance cost is low, can be with the entity of Quick-forming thinner thickness, in forming process
In do not need manual intervention, equipment size is compact, be suitable for cold operation.
Representative technology of the stereolithography apparatus (SLA) as adhesion type 3D printing, compared to appositional pattern 3D printing technique,
It has higher precision and stock utilization.The basic process principle of SLA is that rapidoprint is carried out selectivity using luminous energy
Solidification obtains final finished by way of accumulating layer by layer, and the typical process flow of processing is as follows: (1) adding 3 D stereo
Add necessary support.(2) solid after addition support is subjected to layering and machining path is planned.(3) laser is according to planning path
Selective solidification is carried out to the rapidoprint in a level.(4) processing work platform decline a thickness, and to part liquid level into
Row coating.(5) two above step papery structure at all levels completion of processing is repeated, workbench rises.(6) workpiece is supported,
Cleaning, workpiece needed for obtaining.The step effect of SLA technique is weaker, shaping speed faster, it is more efficient.
Selective laser sintering technique (SLS) is formed by can selectively melt dusty material using laser,
High controllable accurate quick 3D printing can be carried out for non-metal shell body medium.SLS type 3D printing equipment carrying out practically principle is such as
Under: (1) powder temperature controller generally 4 piece heating fluorescent tubes be made of, and moves freely in molding room and powdering preparation area, guarantees
It is sintered the temperature control of powder；(2) equipment, which is not sintered, completes one layer, and rolling powder drum spreads one layer wait burn to molding room again from right to left
Powder is tied, molding room's lifting platform moves down thickness distance during being somebody's turn to do, and powdering preparation area lifting platform moves up thickness distance；(3) laser
Under the reflection of the mobile rotary scanning galvanometer of multiple degrees of freedom, the sintering powder of molding room is heated；(4) structures such as inlet, outlet
It ensure that the ambient temperature and humidity of entire printing device.
Stacking manufacture (LOM) is with PVC plastic film for printing main material, is to beat with glue special, solution glue and dispergation pen
Print auxiliary material.Its technological principle is that geological information cutting plastic film is layered according to part, and synusia obtained is bonded into three-dimensional
Entity.Its technical process is: layer overlay plastic film first, then cuts out this layer of wheel under the control of the computer with machinery knives
Exterior feature dips solution glue precoating in unwanted part with dispergation pen, is spreading lower layer of plastic film, together after the completion of this layer
When glue special is coated between double-layer films by 8 glue spraying pipes, make newly spread one layer be strongly adhered to it is formed
On body, then cut the profile of this layer, know completion of processing repeatedly, finally removal should not part obtain complete part.
These current increasing material manufacturing methods printing effect, the accuracy of manufacture, printed material, product complexity, equipment at
All there is also very big limitations for this etc., can not produce high-precision complicated metal product the short time.
Summary of the invention
The present invention provides a kind of novel increasing material manufacturing methods to be increased using planar array column magnetic control increasing material manufacturing method
During material manufacture layering printing, the synchronization increasing material manufacturing of entire surface can be carried out；The method can greatly improve product
Manufacturing speed improves plant produced efficiency.
Engineer testing proposed by the present invention needs carry out in 3D printing equipment, truss mechanism be mounted on can it is horizontal,
On the guide rail of vertical direction movement, the movement by controlling truss mechanism be can be realized in iron powder material area, adhesives area,
Shaping area moves back and forth and the function of printing.
A kind of planar array column magnetic control increasing material manufacturing method, as shown in Figure 1 comprising the steps of:
Step 1: establishing product entity geometrical model, product entity geometrical model is imported to the increasing material manufacturing computer of computer
Hierarchy slicing processing is carried out in auxiliary manufacture (CAM) system, the slice printed to needs is analyzed；
Step 2: a plane device is arranged in the right end in truss movement mechanism, this plane device is moved to the bonding of heating state
Material sections, then moved by Z-direction, it is applied on its surface and is covered with adhesives；
Step 3: above-mentioned plane device is moved to above molded area, adhesives is coated in by Z-direction movement and is had become
Type area product surface, the molded area of adhesives in the cold state solidify bonding；
Step 4: a magnetic control plane is arranged in truss mechanism left end, arrange largely be in X, Y-direction battle array in the magnetic control plane
The regularly arranged needle of column, every needle tail end are equipped with coil, and magnetic acquisition or disappearance can be realized by power on/off；
Step 5: the above-mentioned needle head in array plane arrangement is unified downward, this array is put down by movement truss mechanism
Face is moved to iron powder material area；
Step 6: iron powder material area is struck off in the state of reciprocating motion using a movement mechanism with scraper；
Step 7: CAM system according to analyze come hierarchical model come control array plane corresponding position needle adsorb iron powder；
Step 8: the array plane for having adsorbed iron powder moves to right above molded area, moved by Z-direction close to molding table
Then face discharges magnetic force, iron powder is set and stays shaping area surface, is realized and is bonded by adhesives；
Step 9: circulation step two constantly prints, to step 8 until formed product in layer；After integrally formed, pass through
Static pressure and high temperature sintering processing, realize densification, remove adhesives, realization is performed integrally.
In said step 1, threedimensional model is imported in CAM system with STL format, carries out hierarchy slicing processing, system is certainly
The dynamic slice figure for calculating each layer, then controls magnetic control plane needle further according to information, to reach each absorption
Iron powder material can form corresponding shape.Further according to the thickness of slice, to control the amount of absorption iron powder material.
In the step 4, CAM system carries out the small needle for being distributed in magnetic control plane by control PLC real-time
Control system of switching on or off electricity, the quick various complex figures of increasing material manufacturing.All small needles are arranged in X, Y with identical posture array and put down
Face, to generate a magnetic field force straight up, to adsorb the powder in iron powder material area.
In the step 5, truss mechanism is used to position to fix all small needles, so that all needles are same
One plane, and left and right ends plane is driven to move back and forth in iron powder material area, adhesives area, molded area, carry out printing speed
Product.
In the step 6, before adsorbing iron powder every time, doctor blade iron powder material area upper surface should be all used, is made
Suitable iron powder can accurately be adsorbed, form corresponding shape and thickness by obtaining small needle.
The product of this method printing, it is appropriate by controlling after making product integrally formed by way of layering printing
Pressure and temperature carry out static pressure and high temperature sintering processing, the bonding agent remained in each layer can be made to be extruded out,
And have substantially no effect on the precision of printed product.
The utility model has the advantages that this method provides a kind of planar array column magnetic control increasing material manufacturing method, can by control magnetic force from
The iron powder of the corresponding slice figure of each floor is adsorbed in iron powder material area, carries out the increasing material manufacturing of entire surface, beats to substantially increase
Print-out rate.The equipment used simultaneously is simple, low in cost, it is possible to produce the biggish product of complexity, the product manufactured
Surface roughness is also higher.Therefore, the present invention is with a wide range of applications as a kind of novel increasing material manufacturing method.
Detailed description of the invention
Fig. 1 is a kind of planar array column magnetic control increasing material manufacturing method flow schematic diagram of the present invention.
Specific embodiment
The invention will now be further described with reference to specific embodiments, but examples are merely exemplary, not to this hair
Bright range constitutes any restrictions.It will be understood by those skilled in the art that without departing from the spirit and scope of the invention
Can with the details and forms of the technical scheme of the invention are modified or replaced, but these modification and replacement each fall within it is of the invention
In protection scope.
1, Moulds Based on Three-Dimensional Models is established, model is imported into increasing material manufacturing CAM system with STL format, is then carried out
Slicing treatment calculates the number of plies, thickness and each layer of shape being sliced of product printing.
2, a fixed bracket is built, truss mechanism is moved horizontally and vertical shift on bracket.
3, truss mechanism is a telecontrol equipment, while a plane device is respectively set in the two sides of mechanism.Left side is one
A array magnetic control plane device being made of a large amount of small needles, for adsorbing iron powder.Right side is one for coating bonding
Then bonding agent is transmitted to molded area's product surface by the plane of agent.
4, then truss mechanism horizontal movement is put down so that truss mechanism right side plan is moved to right above adhesives area
Face moves down, and coats bonding agent, then move to molded product zone, bonding agent is coated to product surface.
5, using scraper, raw material iron powder area upper surface is struck off, guarantees that everywhere is all equal at a distance from magnetic control plane, is
Array magnetic control Planar adsorbent raw material iron powder is prepared.
6, truss mechanism horizontal movement, so that array magnetic control plane device moves to raw material iron powder area on the left of truss mechanism
Surface, then system controls Electro Sorb iron powder on corresponding needle according to slice information.
7, truss movement mechanism moves horizontally, so that right above magnetic control plane motion to molded area, then vertical shift, make
It obtains above the magnetic control planar movement to molded area's product surface being made of a large amount of small needles at slight distance.
8, increasing material manufacturing CAM system control needle power-off, the iron powder of absorption is trapped in molded area's product surface, by being bonded
Bonding is realized in agent.So far, this layer of printing of product is completed.
9, whether judgement completes whole processing of product at this time, if not, being back to step 4；By continuous in layer
Printing, until product is integrally formed.
It after integrally formed, handled by equal static pressure and high temperature sintering, realizes densification, remove adhesives, realized whole
It completes.
Claims (4)
1. a kind of planar array column magnetic control increasing material manufacturing method, it is characterised in that include lower step:
Step 1: establishing product entity geometrical model, product entity geometrical model is imported to the increasing material manufacturing CAM system of computer
Middle progress hierarchy slicing processing, the slice printed to needs are analyzed；
Step 2: a plane device is arranged in the right end in truss movement mechanism, this plane device is moved to the bonding of heating state
Material sections, then moved by Z-direction, it is applied on its surface and is covered with adhesives；
Step 3: above-mentioned plane device is moved to above molded area, adhesives is coated in by Z-direction movement and is had become
Type area product surface, the molded area of adhesives in the cold state solidify bonding；
Step 4: a magnetic control plane is arranged in truss mechanism left end, arranged in the magnetic control plane multiple in X, Y-direction battle array
The regularly arranged needle of column, every needle tail end are equipped with coil, and magnetic acquisition or disappearance can be realized by power on/off；
Step 5: the above-mentioned needle head in array plane arrangement is unified downward, this array is put down by movement truss mechanism
Face is moved to iron powder material area；
Step 6: iron powder material area is struck off in the state of reciprocating motion using a movement mechanism with scraper；
Step 7: CAM system according to analyze come hierarchical model come control array plane corresponding position needle adsorb iron powder；
Step 8: the array plane for having adsorbed iron powder moves to right above molded area, moved by Z-direction close to molding table
Then face discharges magnetic force, iron powder is set and stays shaping area surface, is realized and is bonded by adhesives；
Step 9: circulation step two constantly prints, to step 8 until formed product in layer；After integrally formed, pass through
Static pressure and high temperature sintering processing, realize densification, remove adhesives, realization is performed integrally.
2. a kind of planar array column magnetic control increasing material manufacturing method according to claim 1, which is characterized in that the product is real
Volume geometric model is imported with STL format in the increasing material manufacturing CAM system of computer.
3. a kind of planar array column magnetic control increasing material manufacturing method according to claim 1, which is characterized in that by product entity
After geometrical model carries out hierarchy slicing processing, the number of plies, thickness and each layer of shape being sliced of the slice of printing are analyzed.
4. a kind of planar array column magnetic control increasing material manufacturing method according to claim 1, which is characterized in that CAM system is logical
Control PLC is crossed to carry out real-time control system of switching on or off electricity to the needle for being distributed in magnetic control plane.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109605746A (en) * | 2019-01-09 | 2019-04-12 | 贵州大学 | A kind of 3D printing molding machine and its forming method |
| 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 |
| CN111640963A (en) * | 2020-06-16 | 2020-09-08 | 陕西中丰新能源有限公司 | Manufacturing process of battery pole plate |
| CN113976914A (en) * | 2021-11-14 | 2022-01-28 | 中国航发沈阳黎明航空发动机有限责任公司 | Selective laser melting forming process based on control surface bionic structure |
| CN114290670A (en) * | 2021-12-23 | 2022-04-08 | 哈尔滨工业大学 | 3D printing device based on electromagnet array |
| CN115365518A (en) * | 2022-09-26 | 2022-11-22 | 浙江大学高端装备研究院 | Magnetic force-assisted support-free direct-writing additive manufacturing device and manufacturing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115365518A (en) * | 2022-09-26 | 2022-11-22 | 浙江大学高端装备研究院 | Magnetic force-assisted support-free direct-writing additive manufacturing device and manufacturing method thereof |
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Effective date of registration: 20210706 Address after: 311100 room 103, building 5, 503 Xingguo Road, Yuhang District, Hangzhou City, Zhejiang Province Patentee after: High end equipment Research Institute of Zhejiang University Address before: 215000 Building 1 and building 2, 888 Zhujiang South Road, Mudu Town, Wuzhong District, Suzhou City, Jiangsu Province Patentee before: SUZHOU INTELLIGENT MANUFACTURING RESEARCH INSTITUTE Co.,Ltd. |