CN103978206A - Material adding manufacturing method of lattice paving powder - Google Patents
Material adding manufacturing method of lattice paving powder Download PDFInfo
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- CN103978206A CN103978206A CN201410203236.5A CN201410203236A CN103978206A CN 103978206 A CN103978206 A CN 103978206A CN 201410203236 A CN201410203236 A CN 201410203236A CN 103978206 A CN103978206 A CN 103978206A
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Abstract
A material adding manufacturing method of lattice paving powder comprises the steps of according to the shape demand of a part to be molded, constructing a three-dimensional model of the part to be molded, and performing layering discretization treatment according to a machining direction; opening an air valve corresponding to an air hole in a micro air hole adsorption disc at the corresponding position with the material according to the discretized section pattern so as to adsorb particles; keeping the closing state of the corresponding air valve at the position where the material is not needed and the particles are not adsorbed; keeping the opening state of the air valve, integrally moving the layer of particles to a glue pool above a tensioned lattice and closing the air valve, so the particles are transferred to a lattice to achieve the aim of paving powder on the lattice, wherein the lattice paved with the powder sinks together with the particles for sizing; adhering and curing the sized particle layer on a worktable or an existing particle layer; repeating the steps to the final layer. The material adding manufacturing method realizes the overlapping among layers, the final part to be molded is formed by removing lattice fibers, one flat surface can be molded by the method at one step, and the method has the advantages of fast molding speed and simplicity, convenience and reliability in supporting.
Description
Technical field
The invention belongs to and increase material manufacturing technology field, particularly a kind of increasing material manufacture method of grid paving powder.
Background technology
Increasing material manufacturing technology is a kind of new processing method, compared with traditional manufacture, on two axles of plane, has increased Z axis, has realized the successively manufacturing technology of three-dimensional by the method for material stacking.This technology is taking metal, plastics and pottery etc. as primary raw material, follow " multi-shell curing; cumulative layer by layer " know-why, according to mode curing in layer, common increasing material manufacturing technology can be able to be divided three classes: the first kind is light stationary, as stereolithography technology (SL), be subject to ultraviolet ray etc. pointwise illumination scan, make photocurable liquid polymer because of photopolymerization, harden into thin layer; Equations of The Second Kind is thermosetting formula, comprise fuse Deposition Modeling (FDM), precinct laser sintering (SLS), electron beam melting (EBM), all taking melting and refreezing admittedly as general principle, material pointwise is melted and the formation thin layer that is solidified togather; The 3rd class is mucosity type, as 3-D spraying binding (3DP), laminated solid body manufacture (LOM), be by dusty material optionally pointwise be bonded to as a wholely, or will layer material form required cross sectional shape along edge pointwise cutting after bonding.
As mentioned above, no matter be which kind of concrete implementation method, or the cured form of any class, existing most material manufacturing technology that increases all adopts the point by point scanning mode of special light or energy to carry out, movement by point progressively forms lines, reach edge rear steering, continue scanning, finally form a plane.Obviously, in each individual layer plane, be point by point scanning, the disadvantage of this scan mode is that shaping speed is slow, and efficiency has much room for improvement.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the object of the present invention is to provide a kind of increasing material manufacture method of grid paving powder, taking even-grained metal, plastics or ceramic spherical particle as raw material, according to discrete go out section figure, by particulate material be distributed in can passive grid on, after applying glue, once can directly pile up a plane, have advantages of that shaping speed is fast, grid can play the effect of successively supporting.
To achieve these goals, the technical solution used in the present invention is:
An increasing material manufacture method for grid paving powder, comprising:
1), according to the shape need of to be formed, build its threedimensional model, and carry out the processing of layering discretization according to machine direction;
2) according to discrete go out section figure, having the correspondence position of material, open the air valve of corresponding pore on micro-pore suction tray, adsorption particle; In the position that does not need material, keep the closed state of corresponding air valve, particle is not adsorbed, and accurately controls the distribution dot matrix of particle in plane thereby realize;
3) open and-shut mode of maintenance air valve, this layer of particle of integrated moving is to the grid top that is positioned on Jiao Chi, tighten and close gas check valve, and particle is just transferred on grid, reaches the object of grid paving powder;
4) grid after paving powder sinks together with particle, carries out applying glue;
5) by bonding the stratum granulosum after applying glue, be solidificated on workbench or existing stratum granulosum;
6) repeat above absorption, paving powder, applying glue and bonding process successively, to the last one deck, realizes the stack of interlayer, after extraction Gitterfasern or heating, melts and removes, and forms final to be formed.
On described micro-pore suction tray, be evenly equipped with the pore dot matrix in some and aperture.
Described pore, according to the shape of individual layer figure, is realized separately and being opened and closed under the control of air valve.
Described grid is the fiber interweaving in length and breadth of tightening.
The raw material adopting is metal, plastics or pottery etc., and epigranular, the circularity of ingredient requirement particle are good.
Compared with prior art, the increasing material manufacture method based on grid paving powder technology provided by the invention, adopts the method for face moulding to carry out the manufacture of part, can realize plane of a direct forming, have forming speed fast, support easy reliable advantage.
Brief description of the drawings
Fig. 1 is the operating position cut-away illustration of the micro-pore suction tray of the present invention.1 is micro-pore, and wherein arrow upwards represents that this air valve opens, and produces absorption affinity upwards, adsorbable particulate material, and 2 is particulate material, and 3 is grid, and 4 is Jiao Chi.
Fig. 2 is that particulate material is transferred to the schematic diagram on grid.2 is particulate material, and 3 is grid.
Fig. 3 is the implementation procedure schematic diagram of the increasing material manufacture method of the grid paving powder that provides of example.21 is new stack particulate material, and 22 is the particulate material that superposes, and 3 is grid, and 41 is bonding agent.
Fig. 4 is the distribution of material dot matrix schematic diagram of the increasing material manufacture method layer of the grid paving powder that provides of example.5 for not needing the position of material, and 6 for needing the position of material.
Detailed description of the invention
Describe embodiments of the present invention in detail below in conjunction with drawings and Examples.
The present invention includes following steps:
1), according to the shape need of to be formed, build its threedimensional model, and carry out the processing of layering discretization according to machine direction;
2) to discrete go out each section figure, again successively discrete is the lattice model of material in each plane, obtains the plane distribution of material;
3) micro-pore suction tray is placed in to the top of container for granule, is having the correspondence position of material, open the air valve of this pore, adsorption particle; In the position that does not need material, keep the closed state of corresponding air valve, particle is not adsorbed, and can control the distribution of particle in plane, realizes the dot matrix in kind of particle;
4) open and-shut mode of maintenance air valve, this layer of particle of integrated moving is to the grid top that is positioned on Jiao Chi, tighten and close gas check valve, and particle is just transferred on grid, reaches the object of grid paving powder;
5) grid certain degree of depth of sinking together with particle, carries out applying glue;
6) by the stratum granulosum after applying glue, bonding together with grid, be solidificated on workbench or existing stratum granulosum;
7) repeat above absorption, paving powder, applying glue and bonding process successively, to the last one deck, realizes the stack of interlayer, after extraction Gitterfasern or heating, melts and removes, and forms final to be formed.
Wherein, as shown in Figure 1, the micro-pore suction tray of the present invention is by many small pipelines proper alignment according to certain rules, and formation plate-like is fixed together.The upper end of each pipeline is all connected to independent air valve, and whether the unlatching of air valve is subject to the control of individual layer graphic package, and micro-pore 1 arrow upwards represents that this air valve opens, and produces absorption affinity upwards, adsorbable particulate material 2.
Be described as follows: definite position has or not particulate material 2, it on each individual layer, is (as shown in Figure 3) that has obvious difference, after these differences are identified by computer, figure signal just can be converted into data signal, this data signal can accurately be controlled air valve: air valve is opened, adsorbable particulate material 2; Air valve is closed, just adsorption particle raw material 2 not.Therefore named micro-pore suction tray.Wherein the lower end of all micro-pore pipelines is all in the same plane, with the particulate material 2 guaranteeing to be adsorbed onto also at same plane so that evenly applying glue, bonding, the lower end of this pipeline is being controlled in the keying of air valve, and whether adsorption particle raw material 2 is to realize the concrete materialization of individual layer figure.
Embodiment: referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, grid paving powder is prepared the drum of particle, comprises the following steps:
1, utilize three-dimensional software to complete the modeling of this part, and store into stl file form;
2, model is carried out to discretization processing, obtain model and divide layer cross section information;
3, to discrete go out each section figure, again successively discrete is the lattice model of material in each plane, obtains the plane distribution of material.To this drum, as shown in Figure 4, wherein dash area is desirable section figure to the distribution of material of certain one deck, has the circle of " √ " mark to indicate the correspondence position of material, has the circle of "×" mark to represent not need the position of material.If dwindle the granularity of granular materials, can effectively improve the degree of fitting of figure;
4, micro-pore suction tray is placed in to the top of container for granule, is having the correspondence position of material, as Fig. 4 have " √ " mark, open the air valve of a micro-pore 1 on micro-pore suction tray, adsorption particle; In the position that does not need material, keep the closed state of corresponding air valve, particle is not adsorbed, and can control the distribution of particle in plane, realizes the dot matrix in kind of particle, as shown in Figure 1.
5, keep the adsorbed state in step 4, as shown in Figure 1, this layer of particle of integrated moving 2 is to grid 3 tops that are positioned on glue pond 4, tighten and close gas check valve, and particle 2 is just transferred on grid 3, as shown in Figure 2, reaches the object of grid paving powder;
6, entirety downwards translation grid 3 in glue pond 4 and certain degree of depth of sinking, as ten/first-class of granular materials diameter, carry out applying glue;
7, by the stratum granulosum after applying glue, bonding together with grid, be solidificated in workbench or superposeed on particulate material 22, as shown in Figure 3.
8, repeat above absorption, paving powder, applying glue and bonding process successively, to the last one deck, realizes the stack of interlayer, removes Gitterfasern by the mode of heating and melting, forms final to be formed.
Claims (5)
1. an increasing material manufacture method for grid paving powder, is characterized in that, comprises the steps:
1), according to the shape need of to be formed, build its threedimensional model, and carry out the processing of layering discretization according to machine direction;
2) according to discrete go out section figure, having the correspondence position of material, open the air valve of corresponding pore on micro-pore suction tray, adsorption particle; In the position that does not need material, keep the closed state of corresponding air valve, particle is not adsorbed, and accurately controls the distribution dot matrix of particle in plane thereby realize;
3) open and-shut mode of maintenance air valve, this layer of particle of integrated moving is to the grid top that is positioned on Jiao Chi, tighten and close gas check valve, makes transfer of granules to grid, reaches the object of grid paving powder;
4) grid after paving powder sinks together with particle, carries out applying glue;
5) by bonding the stratum granulosum after applying glue, be solidificated on workbench or existing stratum granulosum;
6) repeat above absorption, paving powder, applying glue and bonding process successively, to the last one deck, realizes the stack of interlayer, after extraction Gitterfasern or heating, melts and removes, and forms final to be formed.
2. the increasing material manufacture method of grid paving powder according to claim 1, is characterized in that, is evenly equipped with the pore dot matrix in some and aperture on described micro-pore suction tray.
3. the increasing material manufacture method of grid paving powder according to claim 1, is characterized in that, described pore, according to the shape of individual layer figure, is realized separately and being opened and closed under the control of air valve.
4. the increasing material manufacture method of grid paving powder according to claim 1, is characterized in that, described grid is the fiber interweaving in length and breadth of tightening.
5. the increasing material manufacture method of grid paving powder according to claim 1, is characterized in that, the raw material adopting is metal, plastics or pottery.
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| CN201410203236.5A CN103978206B (en) | 2014-05-14 | 2014-05-14 | A kind of increasing material manufacture method of grid paving powder |
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| CN201410203236.5A CN103978206B (en) | 2014-05-14 | 2014-05-14 | A kind of increasing material manufacture method of grid paving powder |
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| US20180186069A1 (en) * | 2017-01-03 | 2018-07-05 | General Electric Company | Methods and systems for vacuum powder placement in additive manufacturing systems |
| CN110216287A (en) * | 2019-06-26 | 2019-09-10 | 北京钢研新材科技有限公司 | A kind of metal material high throughput preparation method based on heterogeneous powder SLM printing technology |
| CN110328363A (en) * | 2019-06-20 | 2019-10-15 | 河北敬业增材制造科技有限公司 | A kind of electron beam powder rapid forming system |
| JP2019529189A (en) * | 2016-09-29 | 2019-10-17 | アエロサン エスア | Device and method for manipulating particles |
| CN110461530A (en) * | 2017-01-10 | 2019-11-15 | 绍尔有限公司 | Reduced by means of the material melted by laser deposition welder or be closed completely workpiece Internal periphery opening method |
| CN114953704A (en) * | 2022-05-26 | 2022-08-30 | 华中科技大学 | Reinforcing phase particle position control system and method for composite additive manufacturing |
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| 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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| CN110328363A (en) * | 2019-06-20 | 2019-10-15 | 河北敬业增材制造科技有限公司 | A kind of electron beam powder rapid forming system |
| CN110216287A (en) * | 2019-06-26 | 2019-09-10 | 北京钢研新材科技有限公司 | A kind of metal material high throughput preparation method based on heterogeneous powder SLM printing technology |
| CN114953704A (en) * | 2022-05-26 | 2022-08-30 | 华中科技大学 | Reinforcing phase particle position control system and method for composite additive manufacturing |
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| CN103978206B (en) | 2015-10-28 |
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