CN107283832A - Dusty material and method for Layered manufacturing three-dimensional body - Google Patents
Dusty material and method for Layered manufacturing three-dimensional body Download PDFInfo
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- CN107283832A CN107283832A CN201710627634.3A CN201710627634A CN107283832A CN 107283832 A CN107283832 A CN 107283832A CN 201710627634 A CN201710627634 A CN 201710627634A CN 107283832 A CN107283832 A CN 107283832A
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- Prior art keywords
- powder
- dimensional body
- layered manufacturing
- product
- dusty material
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Classifications
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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
-
- 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
- B33Y70/00—Materials specially adapted for additive manufacturing
Abstract
The present invention provides a kind of method for Layered manufacturing three-dimensional body, comprises the following steps：Step 1: elastomer powder and soluble high-molecular powder are mixed evenly, the dusty material for Layered manufacturing three-dimensional body is obtained；Step 2: the dusty material for Layered manufacturing three-dimensional body is made into product by 3D printer；Step 3: by product submergence in a solvent, being completely dissolved soluble high-molecular powder, product is taken out；Step 4: the product is dried, it is final that the product with cavernous structure is made.The manufacture method of product of the present invention can to produce equally distributed empty structure in product, can strengthen the elasticity of product, can mitigate the weight of product again, while also assures that the wearability of its script.
Description
Technical field
The invention belongs to increases material manufacturing technology field, and in particular to a kind of dusty material for Layered manufacturing three-dimensional body
And method.
Background technology
" 3D printing " is that a class successively adds material to manufacture the general designation of three-dimensional body " increasing material manufacturing " technology, its core
Heart principle is：" Layered manufacturing is successively superimposed ", similar to the process of cylindrical coordinates triple integral in higher mathematics.It is different from biography
" subtract material manufacture " of system, 3D printing technique is by technological incorporation such as machinery, material, computer, communication, control technology and biomedicines
Insertion, with product development cycle, the reduction advantage such as R＆D costs and integrally manufactured complicated shape product is shortened, future may be right
Manufacturing industry production model produces important influence with human life style.According to the moulding mechanism of 3D printing, generally by 3D printing
It is divided into two major classes：Raw material manufacture and bonding raw material manufacture are deposited, covers the specific three-dimensional Rapid Manufacturing Technology of kind more than ten, compared with
There are 5 kinds for technology that is ripe and possessing practical application potentiality：SLA- stereolithography apparatus, the shaping of FDM- volumes, LOM- layerings
Entity manufacture, the three-dimensional powder bondings of 3DP- and SLS- selective laser sinterings.
Below with Selective Laser Sintering (Selective Laser Sintering, SLS) exemplified by, SLS is current
A kind of rapid shaping technique being widely used, its moulding process principle is：Initially set up the Computerized three-dimensional mould of target part
Type, then carries out slicing treatment by threedimensional model with delamination software, the data message of each processing aspect is obtained, in computer
Under control, according to section section information, sintering is successively scanned to heat-fusible dusty material using laser beam, target is finally completed
The processing and manufacturing of part.
Exemplified by manufacturing sole and shoe-pad, conventional soles and shoe-pad manufacture can use foaming technique, by anti-in polymerization
Gas should be produced, can cause sole that there is the density of excellent elastic and very little, but often wearability is inadequate for the sole of this method,
One layer of high-abrasive material of fitting again is needed when actual use；And use selective laser sintering method to make sole and shoe-pad, can be straight
Connect using the good material of wearability, but product density is larger and elastic inadequate.
The content of the invention
It is creative by elastomer powder the invention provides a kind of dusty material of Layered manufacturing three-dimensional body and method
Stir and mix with soluble high-molecular powder, the dusty material for Layered manufacturing three-dimensional body is made, use
Product is made in the dusty material, recycles soluble high-molecular powder to dissolve in the principle of solvent so that produced in product uniform
The empty structure of distribution, can strengthen the elasticity of product, moreover it is possible to mitigate the weight of product, while also assures that the wear-resisting of its script
Property.
The invention provides a kind of method for Layered manufacturing three-dimensional body, comprise the following steps：
Step 1: elastomer powder and soluble high-molecular powder are mixed evenly, obtain being used for Layered manufacturing three
Tie up the dusty material of object；
Step 2: the dusty material for Layered manufacturing three-dimensional body is made into product by 3D printer；
Step 3: by product submergence in a solvent, dissolving soluble high-molecular powder in product, taking out product；
Step 4: the product is dried, it is final that the product with cavernous structure is made.
As present invention further optimization scheme, the mass ratio of elastomer powder and the soluble high-molecular powder is
9~5: 1~5.
As present invention further optimization scheme, the average grain diameter of the soluble high-molecular powder is elastomer powder
1.2~1.8 times of average grain diameter.
As present invention further optimization scheme, the elastomer powder is TPU, TPE or TPEE powder.It is worth mentioning
, during TPU is only the most preferred scheme of elastomer powder of the present invention, practical application, TPE and TPEE can be used as elastomer powder
Last is alternative, and the elastomer powder of also other classifications will not be described here.
As present invention further optimization scheme, the soluble high-molecular powder is water soluble polymer powder or alcohol
Soluble macromolecular powder.It is noted that PVA powder is only the most preferred scheme of water soluble polymer powder of the present invention, it is real
In the application of border, water soluble polymer is by sources generally divided into three major types：(1) water-soluble macromolecule.Using natural animal-plant as
Raw material is extracted and obtained.Such as starch, cellulose, natural plant gum, animal glue；(2) chemically modified natural polymerses.Mainly have and change
Property starch and modified cellulose.Such as CMS, acetic starch, hydroxymethyl cellulose, carboxymethyl cellulose；(3) synthesize
Polymer, there is polymer resin and the condensation class of resinoid two, such as polyacrylamide (PAM), hydrolyzed polyacrylamide (HPAM)),
Polyvinylpyrrolidone (PVP) etc..The aquation group connected by macromolecular chain is divided into：Non-ionic and ionic.By charge
Matter is divided into：Nonionic, cation, anion and amphoteric ion high polymer, wherein rear three classes are polyelectrolyte.By between group whether
It is coupled in the presence of stronger non-covalent bond and is divided into association polymer and non-association polymer again.Due to the limitation of prior art, first
The water-soluble macromolecule of class and Equations of The Second Kind chemically modified natural polymerses may not be suitable for the material of Layered manufacturing three-dimensional body
Material, the 3rd class synthetic polymer, such as PAM, HPAM and PVP can be applied to the material of Layered manufacturing three-dimensional body, can make
For the protection content of the present invention, the water soluble polymer dusty material and alcohol-soluble polymeric powder of also other classifications are herein not
Repeat.
As present invention further optimization scheme, the solvent is water or alcohols solvent.It is noted that when described
When soluble high-molecular powder is water soluble polymer powder, the solvent preferably uses water；When the soluble high-molecular powder
During for alcohol-soluble polymeric powder, the solvent preferably uses alcohols solvent.
As present invention further optimization scheme, in step 3, the solvent can also be heated, the solvent
Heating-up temperature need to reach more than 70 DEG C.Due to the otherness of water and alcohols solvent boiling point, and in view of security, if solvent
For water, then the heating-up temperature of water need to reach more than 90 DEG C, if solvent is alcohols solvent, the heating-up temperature of alcohols solvent need to reach
More than 70 DEG C, and ensure in safe temperature range.As can be seen here, water and alcohols solvent are used as solvent of the invention, it is easy to
Obtain, with low cost, environmental sound is safe, and can be removed by heating.
As present invention further optimization scheme, the dusty material for Layered manufacturing three-dimensional body also includes adding
Plus agent, the additive accounts for the 0.1%~1% of raw material gross mass.
As present invention further optimization scheme, the additive is in flow promortor, antioxidant and brightening agent
It is one or more.
The present invention also provides a kind of dusty material for Layered manufacturing three-dimensional body, including above-mentioned for Layered manufacturing
The dusty material of three-dimensional body.
The dusty material and method of Layered manufacturing three-dimensional body of the present invention have the advantages that：
(1), this method is creative stirs elastomer powder and soluble high-molecular powder and mixes, makes
The dusty material of Layered manufacturing three-dimensional body must be used for, product is made using the dusty material, soluble high-molecular powder is recycled
End dissolves in the principle of solvent so that equally distributed empty structure is produced in product, can strengthen the elasticity of product, moreover it is possible to mitigate
The weight of product, while also assures that the wearability of its script；
(2), because soluble high-molecular powder equally can need to use the solubility of greater particle size in melting and solidification under laser
Polymeric powder, to reduce its melting and solidification, is conducive to the dissolving of water soluble polymer powder in later stage process；
(3), according to different water soluble polymer powder adding proportions, the voidage of product would also vary from, can be with
Adjusted according to actual operation requirements, very useful convenience.
Embodiment
Embodiment one：
(a) it is that 80um TPU powder and 5g flow promortor are mixed by 2Kg D50, obtains being used for selective laser
The mixed-powder of sintering.Comparative example
(b) it is the powder mixed is laser sintered for selection type, obtain sample block.
(c) the sample block for obtaining sintering is placed in water, and heating water temperature is to 95 DEG C, until PVA powder is completely dissolved.
(d) the sample block after processing is dried and removes moisture, obtain the sample block with cavernous structure.
Embodiment two：
(a) by 1.8Kg D50 be 80um, TPU powder and 0.2KgD50 be 100um PVA powder, 5g flow promortor
Mix, obtain the mixed-powder for selective laser sintering.
(b) it is the powder mixed is laser sintered for selection type, obtain sample block.
(c) the sample block for obtaining sintering is placed in water, and heating water temperature is to 95 DEG C, until PVA powder is completely dissolved.
(d) the sample block after processing is dried and removes moisture, obtain the sample block with cavernous structure.
Embodiment three：
(a) by 1.0Kg D50 be 80um, TPU powder and 1.0KgD50 be 100um PVA powder, 5g flow promortor
Mix, obtain the mixed-powder for selective laser sintering.
(b) it is the powder mixed is laser sintered for selection type, obtain sample block.
(c) the sample block for obtaining sintering is placed in water, and heating water temperature is to 95 DEG C, until PVA powder is completely dissolved.
(d) the sample block after processing is dried and removes moisture, obtain the sample block with cavernous structure.
Example IV：
(a) by 0.5Kg D50 be 80um, TPU powder and 1.5KgD50 be 100um PVA powder, 5g flow promortor
Mix, obtain the mixed-powder for selective laser sintering.
(b) it is the powder mixed is laser sintered for selection type, obtain sample block.
(c) the sample block for obtaining sintering is placed in water, and heating water temperature is to 95 DEG C, until PVA powder is completely dissolved.
(d) the sample block after processing is dried and removes moisture, obtain the sample block with cavernous structure.
Embodiment five：
(a) by 1.0Kg D50 be 80um, TPU powder and 1.0KgD50 be 80um PVA powder, 5g flow promortor
Mix, obtain the mixed-powder for selective laser sintering.
(b) it is the powder mixed is laser sintered for selection type, obtain sample block.
(c) the sample block for obtaining sintering is placed in water, and heating water temperature is to 95 DEG C, until PVA powder is completely dissolved.
(d) the sample block after processing is dried and removes moisture, obtain the sample block with cavernous structure.
Embodiment six：
(a) by 1.0Kg D50 be 80um, TPU powder and 1.0KgD50 be 100um PVA powder, 5g flow promortor
Mix, obtain the mixed-powder for selective laser sintering.
(b) it is the powder mixed is laser sintered for selection type, obtain sample block.
(c) the sample block for obtaining sintering is placed in water, and heating water temperature is to 80 DEG C, until PVA powder is completely dissolved.
(d) the sample block after processing is dried and removes moisture, obtain the sample block with cavernous structure.
Embodiment seven：
(a) by 1.0Kg D50 be 80um, TPE powder and 1.0KgD50 be 100um PVA powder, 5g flow promortor
Mix, obtain the mixed-powder for selective laser sintering.
(b) it is the powder mixed is laser sintered for selection type, obtain sample block.
(c) the sample block for obtaining sintering is placed in water, and heating water temperature is to 95 DEG C, until PVA powder is completely dissolved.
(d) the sample block after processing is dried and removes moisture, obtain the sample block with cavernous structure.
Embodiment eight：
(a) be 80um by 1.0Kg D50, TPEE powder and 1.0KgD50 be 100um PVA powder, 5g flowing helps
Agent is mixed, and obtains the mixed-powder for selective laser sintering.
(b) it is the powder mixed is laser sintered for selection type, obtain sample block.
(c) the sample block for obtaining sintering is placed in water, and heating water temperature is to 95 DEG C, until PVA powder is completely dissolved.
(d) the sample block after processing is dried and removes moisture, obtain the sample block with cavernous structure.
Table 1 is using properties of product made from the dusty material of the Layered manufacturing three-dimensional body of embodiment one to eight
| Embodiment | Intensity (Mpa) | Product density (g/cm3) |
| Embodiment one | 15.3 | 1.20 |
| Embodiment two | 13.4 | 1.03 |
| Embodiment three | 10.6 | 0.65 |
| Example IV | 5.2 | 0.44 |
| Embodiment five | 10.3 | 0.92 |
| Embodiment six | 12.4 | 1.06 |
| Embodiment seven | 9.1 | 0.65 |
| Embodiment eight | 9.5 | 0.62 |
Embodiment described above only expresses one embodiment of the present invention, it is noted that for this area
For those of ordinary skill, without departing from the inventive concept of the premise, various modifications and improvements can be made, these all belong to
In protection scope of the present invention.
Claims (10)
1. a kind of method for Layered manufacturing three-dimensional body, it is characterised in that comprise the following steps：
Step 1: elastomer powder and soluble high-molecular powder are mixed evenly, obtain being used for Layered manufacturing three-dimensional article
The dusty material of body；
Step 2: the dusty material for Layered manufacturing three-dimensional body is made into product by 3D printer；
Step 3: by product submergence in a solvent, dissolving soluble high-molecular powder in product, taking out product；
Step 4: the product is dried, it is final that the product with cavernous structure is made.
2. the method according to claim 1 for Layered manufacturing three-dimensional body, it is characterised in that the elastomer powder
Mass ratio with soluble high-molecular powder is 9~5: 1~5.
3. the method according to claim 1 or 2 for Layered manufacturing three-dimensional body, it is characterised in that the solubility
The average grain diameter of polymeric powder is 1.2~1.8 times of elastomer powder average grain diameter.
4. the method according to claim 3 for Layered manufacturing three-dimensional body, it is characterised in that the elastomer powder
For TPU, TPE or TPEE powder.
5. the method according to claim 4 for Layered manufacturing three-dimensional body, it is characterised in that the soluble high score
Sub- powder is water soluble polymer powder or alcohol-soluble polymeric powder.
6. the method according to claim 5 for Layered manufacturing three-dimensional body, it is characterised in that the solvent be water or
Alcohols solvent.
7. the method according to claim 6 for Layered manufacturing three-dimensional body, it is characterised in that can be with step 3
The solvent is heated, the heating-up temperature of solvent need to reach more than 70 DEG C.
8. the method according to claim 7 for Layered manufacturing three-dimensional body, it is characterised in that described to be used to be layered system
Making the dusty material of three-dimensional body also includes additive, and the additive accounts for the 0.1%~1% of raw material gross mass.
9. the method according to claim 8 for Layered manufacturing three-dimensional body, it is characterised in that the additive is stream
One or more in dynamic auxiliary agent, antioxidant and brightening agent.
10. a kind of dusty material for Layered manufacturing three-dimensional body, it is characterised in that including any one of claim 1-9
The described dusty material for Layered manufacturing three-dimensional body.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710627634.3A CN107283832B (en) | 2017-07-28 | 2017-07-28 | Method for the layered production of a three-dimensional object |
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| CN201710627634.3A CN107283832B (en) | 2017-07-28 | 2017-07-28 | Method for the layered production of a three-dimensional object |
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| CN107283832A true CN107283832A (en) | 2017-10-24 |
| CN107283832B CN107283832B (en) | 2019-12-10 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101138651A (en) * | 2007-09-14 | 2008-03-12 | 华中科技大学 | Method of preparing organization bracket performing selectivity laser sintering by using macromolecule microsphere |
| CN101861107A (en) * | 2007-10-23 | 2010-10-13 | 耐克国际有限公司 | Articles and methods of manufacture of articles |
| CN106638015A (en) * | 2016-09-29 | 2017-05-10 | 中原工学院 | Flame-retardant anti-dripping high-moisture-permeability artificial leather and preparation method thereof |
-
2017
- 2017-07-28 CN CN201710627634.3A patent/CN107283832B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101138651A (en) * | 2007-09-14 | 2008-03-12 | 华中科技大学 | Method of preparing organization bracket performing selectivity laser sintering by using macromolecule microsphere |
| CN101861107A (en) * | 2007-10-23 | 2010-10-13 | 耐克国际有限公司 | Articles and methods of manufacture of articles |
| CN106638015A (en) * | 2016-09-29 | 2017-05-10 | 中原工学院 | Flame-retardant anti-dripping high-moisture-permeability artificial leather and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN107283832B (en) | 2019-12-10 |
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Address after: No. 181, Linyu Road, national high tech Industrial Development Zone, Changsha City, Hunan Province, 410205 Patentee after: Hunan Huashu High Tech Co.,Ltd. Address before: No. 181, Linyu Road, national high tech Industrial Development Zone, Changsha City, Hunan Province, 410205 Patentee before: HUNAN FARSOON HIGH-TECH Co.,Ltd. |