CN106925770A - 3D printing powder and 3D printing method - Google Patents
3D printing powder and 3D printing method Download PDFInfo
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- CN106925770A CN106925770A CN201511021152.0A CN201511021152A CN106925770A CN 106925770 A CN106925770 A CN 106925770A CN 201511021152 A CN201511021152 A CN 201511021152A CN 106925770 A CN106925770 A CN 106925770A
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/62605—Treating the starting powders individually or as mixtures
- C04B35/62695—Granulation or pelletising
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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
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/05—Metallic powder characterised by the size or surface area of the particles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
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- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/14—Treatment of metallic powder
- B22F1/148—Agglomerating
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- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
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- B22—CASTING; POWDER METALLURGY
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- 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]
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- 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
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- 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
- B22F12/63—Rollers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/001—Rapid manufacturing of 3D objects by additive depositing, agglomerating or laminating of material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/141—Processes of additive manufacturing using only solid materials
- B29C64/153—Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
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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
- B33Y70/00—Materials specially adapted for additive manufacturing
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
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- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/56—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbides or oxycarbides
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/58—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides
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- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/60—Treatment of workpieces or articles after build-up
- B22F10/64—Treatment of workpieces or articles after build-up by thermal means
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- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
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- 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
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/205—Means for applying layers
- B29C64/218—Rollers
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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
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
- C04B2235/54—Particle size related information
- C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
- C04B2235/5436—Particle size related information expressed by the size of the particles or aggregates thereof micrometer sized, i.e. from 1 to 100 micron
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- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
- C04B2235/54—Particle size related information
- C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
- C04B2235/5445—Particle size related information expressed by the size of the particles or aggregates thereof submicron sized, i.e. from 0,1 to 1 micron
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
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- C22C33/02—Making ferrous alloys by powder metallurgy
- C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
- C22C33/0278—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5%
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Abstract
The invention provides a kind of 3D printing powder and a kind of 3D printing method, the span of the particle diameter of the 3D printing powder is 20 microns to 40 microns, each 3D printing powder is reunited by plural powdered base and formed, and the span of the particle diameter of the powdered base is 0.2 micron to 1 micron.3D printing powder of the invention can meet the requirement of powdering technique, and the parts made have preferably surface smoothness and mechanical performance, additionally, by 3D printing powder of the invention, existing increasing material manufacturing equipment can produce ceramic base product.
Description
Technical field
It is particularly a kind of for 3D printing powder and a kind of using the powder the present invention relates to 3D printing technique field
3D printing method.
Background technology
Increasing material manufacturing technique (Additive Manufacturing) is one of important 3D printing technique, increasing material manufacturing work
The CAD model that artistic skill enough will rapidly be pre-designed is manufactured, and can in the short period of time produce complex structure
Parts.Selective laser melting (Selected Laser Melting, SLM) technique is increasing material manufacturing (Additive
Manufacturing) one kind of technology, its by laser sintered mode can rapidly by with CAD model identical parts
Manufacture.Current selective laser melting technique is widely used.
However, selective laser melting technique still suffers from many problems, for example, powdering for convenience, the powder for using
Particle diameter it is larger, it is necessary to using power it is larger laser beam irradiation powder can just melted, to selective laser melting equipment propose
Requirement higher, and parts are easily deformed, component surface is poor quality.Under normal circumstances, also need to selective laser
The parts that melting process is produced are polished, and when the inside of parts is provided with air flue, also need to enter the inner surface of air flue
Row polishing, however, the inner surface of polishing parts air flue is extremely difficult.Further, since the particle diameter of powder is larger, work as powder
During for ceramic powders, required sintering temperature is too high, it is difficult to directly manufacture ceramic base product by existing increasing material manufacturing equipment.
To solve this technical problem, in the prior art, generally reduce the powder that selective laser melting technique is used
Particle diameter, however, the too small powder of particle diameter is easily got together or is flown up, it is not easy to powdering.
The content of the invention
In view of this, the purpose of the present invention is to propose to a kind of 3D printing powder and a kind of 3D printing method, the 3D beats
Print powder can meet the requirement of powdering technique, and the parts made have preferably surface smoothness and mechanical performance, separately
Outward, because the powder of small size can melt at a lower temperature, the requirement to equipment laser light source power can be not only reduced, also
Ceramic base product can be produced by existing increasing material manufacturing technique.
The invention provides a kind of 3D printing powder, the span of the particle diameter of the 3D printing powder is 20 microns
To 40 microns, each 3D printing powder is reunited by plural powdered base and formed, the span of the particle diameter of the powdered base
It is 0.2 micron to 1 micron.
In a kind of illustrative examples of 3D printing powder, the 3D printing powder is metal dust or ceramic powder
End.
In a kind of illustrative examples of 3D printing powder, the 3D printing powder is metal dust, and is nickel
Ferrochrome.
In a kind of illustrative examples of 3D printing powder, the 3D printing powdered-metal powder is containing niobium, molybdenum
Precipitation hardenable nichrome.
In a kind of illustrative examples of 3D printing powder, the 3D printing ceramic powder powder is ceramic powder
End, it includes at least one in metal oxide, carbide and nitride.
Present invention also offers a kind of 3D printing method, the 3D printing method is comprised the following steps：
A kind of 3D printing powder and a kind of 3D printing device, the span of the particle diameter of the 3D printing powder are provided
It it is 20 microns to 40 microns, each 3D printing powder is reunited by plural powdered base and formed, the particle diameter of the powdered base
Span is 0.2 micron to 1 micron；
The 3D printing powder is layed in a forming part of the 3D printing device；
The laser beam sent using the 3D printing device is swept to the 3D printing in the forming part with powder
Retouch irradiation；
The 3D printing powder de-agglomeration is the powdered base, and the laser beam continues to shine the powdered base
Penetrate until making the powdered base be sintered to default shape.
In a kind of illustrative examples of 3D printing method, the 3D printing device includes a laser and one scan
Mirror, the laser is connected with the scanning mirror, and can generate the laser beam, and the scanning mirror is provided using the laser
The laser beam is scanned irradiation to the 3D printing powder.
In a kind of illustrative examples of 3D printing method, the 3D printing device also includes a roller, by described
Be layed in the 3D printing powder in the forming part by the rolling of roller.
From such scheme as can be seen that in 3D printing powder of the invention and 3D printing method, 3D printing powder
The particle diameter at end is larger, and mobile performance preferably, can meet the requirement of selective laser melting technology middle berth powder craft, during powdering, 3D
Printing powder is not easy to get together or flies up, and after the completion of powdering technique, laser beam is irradiated to 3D printing with powder, 3D
Printing powder can be analyzed to the less powdered base of grain size again, so that being manufactured with powder by 3D printing of the invention
The parts for going out have preferably surface smoothness and mechanical performance.In addition, the less ceramic powders of grain size can also be real
Sintering process is completed under present existing laser beam, so that ceramic part can be produced by existing increasing material manufacturing equipment.
Brief description of the drawings
The preferred embodiments of the present invention will be described in detail by referring to accompanying drawing below, make one of ordinary skill in the art more
Clear above and other feature and advantage of the invention, in accompanying drawing：
Fig. 1 is the schematic diagram of the 3D printing powder of one embodiment of the present of invention.
Fig. 2 is the 3D printing powder shown in Fig. 1 from the schematic diagram for being molded into decomposition.
Fig. 3 is the schematic diagram of the 3D printing device being processed to the 3D printing powder shown in Fig. 1.
Fig. 4 is the flow chart of the method for carrying out 3D printing with powder using the 3D printing shown in Fig. 1.
In above-mentioned accompanying drawing, the reference for being used is as follows：
10 3D printing powder
12 powdered bases
300 3D printing devices
301 parts to be processed
32 material feed units
322 supply pistons
323 first cylinder bodies
324 rollers
33 forming units
332 shaping pistons
333 second cylinder bodies
334 forming parts
34 laser sintered units
342 lasers
343 scanning mirrors
S41, S42, S43, S44 step
The D1 3D printings particle diameter of powder 10
The particle diameter of D2 powdered bases 12
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, by the following examples to of the invention further detailed
Describe in detail bright.
Fig. 1 is the metal of one embodiment of the present of invention or the schematic diagram of ceramic powders.Fig. 2 be Fig. 1 shown in metal or
Ceramic powders are from the schematic diagram for being molded into decomposition.Refer to Fig. 1 and Fig. 2, the 3D printing of the present embodiment particle diameter D1 of powder 10
Span for 10 microns (μm) to 60 microns, preferably 20-40 microns.Each 3D printing powder 10 is by plural powdered base
12 reunite forms, and the span of the particle diameter D2 of powdered base 12 is 0.05 micron to 5 microns, preferably 0.2 micron to 1 micron.
3D printing powder 10 is metal dust or ceramic powders, and metal dust is, for example, the alloys of Inconel 718,
The alloys of Inconel 718 are that it has high intensity, good toughness and resistance to height containing niobium, the precipitation hardenable nichrome of molybdenum
Warm nature energy.Ceramic powders are the ceramic material of various structures and function, and it is included in metal oxide, carbide and nitride
At least one, i.e., ceramic powders include one or more in metal oxide, carbide and nitride.Additionally, 3D beats
Print powder 10 can also be other nichromes or other there is the material of high intensity and resistance to elevated temperatures.
3D printing powder 10 can be prepared using following methods, but be not limited.
First, powdered base 12 can be produced by mechanical lapping, milling time depends on particle diameter, the material of powdered base 12
Material and grinding efficiency, powdered base 12 can soak in a liquid, and the liquid is, for example, liquid methanol or liquid nitrogen.Also add in liquid
Added with adhesive, adhesive is organic matter, and it can bond together plural powdered base 12；Then, by spray drying
Mode completes prilling to be made the semi-finished product of 3D printing powder 10.Then, the semi-finished product to 3D printing powder 10 enter
Row heating and sintering removal adhesive of the 3D printing in the semi-finished product of powder 10, for metal dust, the sintering process needs
Protection against oxidation is carried out using the mixed gas of argon gas and hydrogen.Finally, then by sieving, it is 10 microns to 60 micro- to choose particle diameter
The 3D printing powder 10 of rice.
The span of the particle diameter of the 3D printing powder 10 for ultimately forming is 10-60 microns, in preferred embodiment,
The particle diameter of 3D printing powder 10 is 20-40 microns.Reunited by powdered base 12 due to 3D printing powder 10 and formed, 3D printing
With powder 10 under the irradiation of laser beam, the powdered base 12 that particle diameter is 0.2-1 microns can be decomposed into, laser beam is again to powder base
Body 12 is sintered, and the surface such that it is able to make parts has preferably roughness and precision.Additionally, after collecting printing
Powder, by sieving again, particle diameter will be reused in the powder of 10-60 micrometer ranges；And because the small chi for being thermally decomposed
Very little powder needs to granulate again → sinter → sieve according to above-mentioned flow, so as to obtain having the powder for meeting Particle size requirements.
Fig. 3 is the schematic diagram of the 3D printing device being processed to the 3D printing powder shown in Fig. 1.Refer to Fig. 3,3D
Printing equipment 300 includes material feed unit 32, forming unit 33 and laser sintered unit 34, and material feed unit 32 is shaping
Unit 33 provides 3D printing powder 10, and laser sintered unit 34 is used to sinter 3D printing powder 10, and makes 3D printing powder
End 10 forms required parts on forming unit 33.
Specifically, material feed unit 32 includes supply piston 322, the first cylinder body 323 and roller 324, supplies piston 322
It is configured in the first cylinder body 323, can be moved up and down along the first cylinder body 323, the 3D printing heap of powder 10 is located at supply piston 322
On.Roller 324 can be rolled in 3D printing powder 10, and 3D printing powder 10 is tiled onto forming unit 33.Due to 3D
Printing is larger with the particle diameter of powder 10, is 10 microns to 60 microns, and it is single that 3D printing powder 10 can equably be layed in shaping
In unit 33, and it is not easy to get together or flies up.
Forming unit 33 includes shaping piston 332, the second cylinder body 333 and forming part 334, and shaping piston 332 is configured at the
In two cylinder bodies 333, can be moved up and down along the second cylinder body 333；Forming part 334 is fixed on shaping piston 332, can be with shaping
Piston 332 is moved up and down together, and forming part 334 is used to carry parts to be processed 301.
Laser sintered unit 34 includes laser 342 and scanning mirror 343, and laser 342 is connected with scanning mirror 343, and can
Generation laser beam, scanning mirror 343 sinters 3D printing powder 10 into for the laser beam using the offer of laser 342 default
Structure.3D printing is decomposed into plural powdered base 12 with powder 10 under the irradiation of laser beam, first, and laser beam is to powdered base
12 make further heating, you can powdered base 12 is sintered into default structure.
It should be noted that 3D printing device 300 also includes a controller (not shown), the controller is supplied with material
Unit 32, forming unit 33 and laser sintered unit 34 are electrically connected.Controller can be according to the default shape control material of parts
Feed unit 32, forming unit 33 and the start of laser sintered unit 34, are finally made required parts.
Fig. 4 is the flow chart of the method for carrying out 3D printing with powder using the 3D printing shown in Fig. 1.Refer to Fig. 4 and Tu
3,3D printing method of the invention is comprised the following steps：
Step S41, there is provided 3D printing powder 10 and 3D printing device 300, the particle diameter D1's of 3D printing powder 10 takes
Value scope is 10 microns to 60 microns, and each 3D printing powder 10 is reunited by plural powdered base 12 and formed, powdered base 12
Particle diameter D2 span be 0.2 micron to 1 micron；
Step S42,3D printing powder 10 is layed in the forming part 334 of 3D printing device 300；
Step S43, the laser beam sent using 3D printing device 300 is entered to the 3D printing powder 10 in forming part 334
Row scanning irradiation；
Step S44,3D printing powder 10 is decomposed into powdered base 12, and the laser beam continues to carry out powdered base 12
Irradiation is until make powdered base 12 be sintered to default shape.
Specifically, 3D printing technique is, for example, selective laser melting technology.During practical operation, roller 324 is first by one layer
3D printing powder 10 tiles onto the forming part 334 of forming unit 33, and laser sintered unit 34 manipulates laser beam to 3D printing
Irradiation being scanned with powder 10 and raising the temperature of 3D printing powder 10,3D printing powder 10 is first decomposed into powder base
Powdered base 12 is heated to melting point by body 12, laser beam again, and the sintering of powdered base 12 is formed into parts to be processed 301.
A thickness will be moved down when a layer cross section has sintered aftershaping piston 332, a thickness will be moved on supply piston 322,
At this moment roller 324 equably layer overlay 3D printing powder 10 and can start new one above parts to be processed 301 again
The sintering of layer cross section, so operates until parts to be processed 301 are molded completely repeatedly.That is, execution of step S44
Afterwards, step S42 is performed again to step S44, so circulation, until the parts needed for machine-shaping.
It should be noted that during due to 3D printing, the parts of machine-shaping are to be laminated, can be by suitable heat treatment
Technique eliminates interlayer structure, improves the mechanical performance of material, particularly Properties of High Temperature Creep.Specific Technology for Heating Processing needs root
Determine according to selected printed material and being tested by respective orthogonal.The present invention use Technology for Heating Processing be, for example,：1050
Homogenization Treatments 0.5~2 hour under~1080 degree, air cooling is incubated 5~20 hours to 730~790 degree, and stove is as cold as 630~680
5~10h of degree insulation.
3D printing powder of the invention and 3D printing method at least have the following advantages that：
1. in 3D printing powder of the invention and 3D printing method, the particle diameter of 3D printing powder is larger, mobility
Preferably can meet the requirement of selective laser melting technology middle berth powder craft, during powdering, 3D printing powder is not easy to gather
Together or fly up, after the completion of powdering technique, laser beam is irradiated to 3D printing with powder, and 3D printing powder can be analyzed to again
The less powdered base of grain size, so that being had preferably by the parts that 3D printing powder of the invention is produced
Surface smoothness and mechanical performance.
3. in one embodiment of 3D printing powder of the invention and 3D printing method, entered with powder to 3D printing
During row sintering, it can first be decomposed into the less powdered base of size, and powdered base fusing sintering can be filled in the gap of storeroom
In so that the parts being made are finer and close, with preferably mechanical property.
4. in one embodiment of 3D printing powder of the invention and 3D printing method, due to the particle diameter of powdered base
Smaller, lower-powered laser beam can melt powdered base, thus, requirement to selective laser melting equipment also compared with
It is low, advantageously reduce cost.
5. in one embodiment of 3D printing powder of the invention and 3D printing method, due to lower-powered laser
Beam can melt powdered base, and relatively low irradiation temperature can be completely melt powdered base, so as to the change of parts can be reduced
Shape amount.
6. in one embodiment of 3D printing powder of the invention and 3D printing method, because the reduction of size can be with
Powder fusing or sintering temperature reduction are realized, so that turn into by existing increasing material manufacturing device fabrication ceramic part can
Can, that is to say, that by 3D printing powder of the invention, existing increasing material manufacturing equipment can produce ceramic base product.
7. in one embodiment of 3D printing powder of the invention and 3D printing method, using 3D printing technique to this
The 3D printing of invention is processed with powder, the parts of complexity can be disposably processed, without first by each of parts
Part is processed, and then again welds together each part, can effectively shorten process time.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, it is all in essence of the invention
Within god and principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (8)
1. a kind of 3D printing is with powder (10), it is characterised in that the 3D printing value model of the particle diameter (D1) of powder (10)
It is 20 microns to 40 microns to enclose, and each 3D printing powder (10) is reunited by plural powdered base (12) and formed, the powder base
The span of the particle diameter (D2) of body (12) is 0.2 micron to 1 micron.
2. 3D printing as claimed in claim 1 is with powder (10), it is characterised in that the 3D printing powder (10) is metal
Powder or ceramic powders.
3. 3D printing as claimed in claim 2 is with powder (10), it is characterised in that the 3D printing powder (10) is metal
Powder, and be nichrome.
4. 3D printing as claimed in claim 3 is with powder (10), it is characterised in that the 3D printing powder (10) be containing
The precipitation hardenable nichrome of niobium, molybdenum.
5. 3D printing as claimed in claim 2 is with powder (10), it is characterised in that the 3D printing powder (10) is ceramics
Powder, it includes at least one in metal oxide, carbide and nitride.
6. a kind of 3D printing method, it is characterised in that the 3D printing method is comprised the following steps：
There is provided a kind of 3D printing powder (10) and a kind of 3D printing device (300), the 3D printing particle diameter of powder (10)
(D1) span is 20 microns to 40 microns, and each 3D printing powder (10) is by plural powdered base (12) reunion
Into the span of the particle diameter (D2) of the powdered base (12) is 0.2 micron to 1 micron；
The 3D printing powder (10) is layed in a forming part (334) of the 3D printing device (300)；
The laser beam sent using the 3D printing device (300) is to the 3D printing powder in the forming part (334)
(10) it is scanned irradiation；
The 3D printing powder (10) is decomposed into the powdered base (12), and the laser beam continues to the powdered base
(12) it is irradiated until making the powdered base (12) be sintered to default shape.
7. 3D printing method as claimed in claim 6, it is characterised in that the 3D printing device (300) includes a laser
(342) and one scan mirror (343), the laser (342) is connected with the scanning mirror (343), and can generate the laser beam,
The scanning mirror (343) is carried out to the 3D printing using the laser beam that the laser (342) is provided with powder (10)
Scanning irradiation.
8. 3D printing method as claimed in claim 6, it is characterised in that the 3D printing device (300) also includes a roller
(324) the 3D printing powder (10) is layed in the forming part (334) by the rolling of the roller (324),.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
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| CN201511021152.0A CN106925770A (en) | 2015-12-30 | 2015-12-30 | 3D printing powder and 3D printing method |
| PCT/EP2016/082746 WO2017114852A1 (en) | 2015-12-30 | 2016-12-28 | 3d printing powder and 3d printing method |
| CN201680066717.3A CN108290216B (en) | 2015-12-30 | 2016-12-28 | Powder for 3D printing and 3D printing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201511021152.0A CN106925770A (en) | 2015-12-30 | 2015-12-30 | 3D printing powder and 3D printing method |
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| CN106925770A true CN106925770A (en) | 2017-07-07 |
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| CN201511021152.0A Pending CN106925770A (en) | 2015-12-30 | 2015-12-30 | 3D printing powder and 3D printing method |
| CN201680066717.3A Expired - Fee Related CN108290216B (en) | 2015-12-30 | 2016-12-28 | Powder for 3D printing and 3D printing method |
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| CN (2) | CN106925770A (en) |
| WO (1) | WO2017114852A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110893465A (en) * | 2018-08-22 | 2020-03-20 | 西门子股份公司 | 3D printing metal powder, 3D printing method and method for preparing 3D printing metal powder |
| CN114364472A (en) * | 2019-08-30 | 2022-04-15 | 西门子（中国）有限公司 | Additive manufacturing metal powder, additive manufacturing, and method of preparing additive manufacturing metal powder |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11273601B2 (en) | 2018-04-16 | 2022-03-15 | Panam 3D Llc | System and method for rotational 3D printing |
| US11273496B2 (en) | 2018-04-16 | 2022-03-15 | Panam 3D Llc | System and method for rotational 3D printing |
| CN114714617B (en) * | 2022-03-03 | 2023-09-01 | 上海航天设备制造总厂有限公司 | Powder supply and paving integrated device for improving workpiece density and working method |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108290216A (en) | 2018-07-17 |
| CN108290216B (en) | 2021-06-04 |
| WO2017114852A1 (en) | 2017-07-06 |
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