CN109550952A - A method of the metal 3D printing components based on customization support construction - Google Patents
A method of the metal 3D printing components based on customization support construction Download PDFInfo
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- CN109550952A CN109550952A CN201811455997.4A CN201811455997A CN109550952A CN 109550952 A CN109550952 A CN 109550952A CN 201811455997 A CN201811455997 A CN 201811455997A CN 109550952 A CN109550952 A CN 109550952A
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- printing
- auxiliary support
- metal
- support structure
- target part
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- 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]
-
- 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
-
- 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
- B22F10/30—Process control
- B22F10/38—Process control to achieve specific product aspects, e.g. surface smoothness, density, porosity or hollow structures
-
- 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
- B22F10/40—Structures for supporting workpieces or articles during manufacture and removed afterwards
- B22F10/47—Structures for supporting workpieces or articles during manufacture and removed afterwards characterised by structural features
-
- 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
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- 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
- B22F10/30—Process control
- B22F10/36—Process control of energy beam parameters
-
- 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
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The invention belongs to metal 3D printing technique fields, a kind of more particularly to method of the metal 3D printing components based on customization support construction, step establishes the threedimensional model of target part and the threedimensional model of auxiliary support structure including the use of Computerized three-dimensional software, then slice information is obtained after being handled by Slice Software, and slice information is imported into metal 3D printer；First auxiliary support structure is printed using marmem；After the completion of auxiliary support structure printing, continue to print target part on this basis using part material；After the completion of target part printing, target part is cut down from auxiliary support structure.The defects of customization bearing stress removing method proposed by the present invention can effectively eliminate stress, eliminate microfissure simultaneously improves buckling deformation.
Description
Technical field
The invention belongs to metal 3D printing technique field more particularly to a kind of metal 3D printings based on customization support construction
The method of components.
Background technique
In recent years, metal 3D printing research obtains more and more concerns, and so-called metal 3D printing, which refers to, utilizes hot spot
Diameter is that the high energy laser beam in 100 μm directly melts metal powder, and selective melting accumulation in layer, ultimately forming has
The metal parts of compact tissue.It is adapted to compared to more traditional flexibility and technique relative to traditional " subtracting material forming " with height
Property, all kinds of special-shaped, hollow, lattice structure the parts that metal 3D printing can manufacture conventional method and can not prepare greatly shorten
The new product development period saves more manpowers, financial resources and time, with manufacturing cost is low, the lead time is short, high production efficiency
Equal clear superiorities.
However, the metal 3D printing technique found out at present has apparent disadvantage, i.e., most metal 3D printings
Part its mechanical performance it is all remote weak with corresponding forging, this is also to be determined by the shaping characteristic that it is successively accumulated.Metal 3D
Print procedure is a laser beam fusing powder, phase transformation and the process for solidifying metallurgical bonding.In forming process, powder is extremely short
Fusing in time, temperature gradient is big, can generate biggish thermal stress.It prints there are residual tension in the middle part of workpiece, both ends exist
Residual compressive stress.Thermal stress and residual stress will cause the buckling deformation of printing workpiece, and may occur hardly possible in print procedure
With the defect of prediction.
Summary of the invention
It is an object of the invention to overcome the defect of the prior art, a kind of metal 3D based on customization support construction is provided
The method for printing components, customization bearing stress removing method proposed by the present invention can effectively eliminate stress, eliminate microcosmic split
The defects of line, simultaneously improves buckling deformation.
The present invention is by first printing the net of NiTi (marmem) material before metal 3D printing target workpiece
Shape, Openworks shape or other pattern structures eliminate residual stress as auxiliary support structure and improve buckling deformation.
The present invention is specifically achieved in that the present invention provides a kind of metal 3D printing zero based on customization support construction
The method of part, includes the following steps:
1) structure according to the structure of target part designed for the Auxiliary support of support target part；
2) threedimensional model of target part and the threedimensional model of auxiliary support structure are established using Computerized three-dimensional software, so
Slice information is obtained after being handled afterwards by Slice Software, and slice information is imported into metal 3D printer；
3) auxiliary support structure first is printed using marmem；
4) after the completion of auxiliary support structure printing, continue to print target part on this basis using part material；And just
It is due to there is Auxiliary support, powdering process is not in collapse.
5) after the completion of target part printing, target part is separated by way of cutting with auxiliary support structure, is obtained
Target part.
Step 5) is using Wire EDM, machining cutting or hand cut target part from auxiliary support structure
On cut down.It may be implemented more to be precisely separated using fixture appropriate.It is substantially using Wire EDM, on the one hand protects
Disfiguring workpiece, another aspect do not guarantee the ratio of briquetting of workpiece to card.
Further, the height of auxiliary support structure is identical more than or equal to the height of target part.If Auxiliary support
Height it is too small, stress cannot be discharged well.
Further, the auxiliary support structure is equipped with heat release hole.
Further, the heat release hole extends along the longitudinal direction of auxiliary support structure, and runs through auxiliary support structure.Heat release hole
Shape can be various shape.
Further, the auxiliary support structure is netted.Metal 3D printing process will appear heat concentration, this will lead to
The advantages of molten bath is too big, and use is netted, Openworks shape is in time to conduct heat in time to substrate, reduces thermal deformation.
It further, the use of the specific steps of marmem printing auxiliary support structure include: 21) to control powder-laying roller
The layer overlay marmem bisque on substrate opens laser, and adjusts laser power；
22) laser is scanned along slice information, and powder melts therewith, and printing completes one layer；
23) 22) -23 are repeated) step, until auxiliary support structure printing is completed.
Further, include: using the specific steps that part material continues to print target part
31) powder-laying roller layer overlay part material metal bisque on substrate is controlled, laser is opened, adjusts laser function
Rate；
32) laser is scanned along slice information, and powder melts therewith, and printing completes one layer；
33) 31) -32 are repeated) step, until the printing of entire part is completed.
Support construction will the feature based on printout and design, by first printing the support construction of customization in printing target work
Play Auxiliary support when part.
Compared with prior art, the invention has the following advantages:
Since the present invention is based on the methods of the metal 3D printing components of customization support construction using laser fusing shape note
Recall alloy, and according to the pattern accumulation molding of customization, and continue to print target workpiece on this basis, the present invention passes through in metal
Before 3D printing target workpiece, the netted of NiTi (marmem) material, Openworks shape or other patternings are first printed
Structure is as auxiliary support structure, since there are marmem super elastic characteristics can improve well when printing workpiece
Print workpiece stress concentrate, and then reduce thermal deformation, the present invention by customization support construction when printing target workpiece from
Auxiliary support effect can discharge metal 3D printing residual stress and improve printing workpiece buckling deformation.
The auxiliary support structure is equipped with heat release hole, and use is netted, the Auxiliary support of hollow out or other pattern structures
Heat can be imported substrate in time by structure, prevent printout molten bath from collapsing, and reduce microfissure.
Detailed description of the invention
Fig. 1 is the method flow diagram of the metal 3D printing components of the invention based on customization support construction；
Fig. 2 is the schematic diagram of the first embodiment after the completion of auxiliary support structure and target part of the invention print；
Fig. 3 is the schematic diagram of the second embodiment after the completion of auxiliary support structure and target part of the invention print.
In attached drawing, 1 is substrate, and 2 be target part, and 3 be auxiliary support structure.
Specific embodiment
The following is a clear and complete description of the technical scheme in the embodiments of the invention, it is clear that described embodiment
Only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
Art personnel all other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
Referring to Fig. 1 to Fig. 3, the embodiment of the present invention provides a kind of metal 3D printing components based on customization support construction
Method includes the following steps:
1) structure according to the structure of target part designed for the Auxiliary support of support target part；
2) threedimensional model of target part and the threedimensional model of auxiliary support structure are established using Computerized three-dimensional software, so
Slice information is obtained after being handled afterwards by Slice Software, and slice information is imported into metal 3D printer；
3) auxiliary support structure first is printed using marmem；Marmem has superelastic effect, uses
Marmem printing support can eliminate residual stress well.
4) after the completion of auxiliary support structure printing, continue to print target part on this basis using part material；
5) after the completion of target part printing, cutting auxiliary support structure obtains target part.
Step 5) is using Wire EDM, machining cutting or hand cut target part from auxiliary support structure
On cut down.It may be implemented more to be precisely separated using fixture appropriate.It is substantially using Wire EDM, on the one hand protects
Disfiguring workpiece, another aspect do not guarantee the ratio of briquetting of workpiece to card.
Further, the height of auxiliary support structure is identical more than or equal to the height of target part.
Further, the auxiliary support structure is equipped with heat release hole.
Further, the heat release hole extends along the longitudinal direction of auxiliary support structure, and runs through auxiliary support structure.Heat release hole
Shape can be various shape.
Further, the auxiliary support structure is netted.Metal 3D printing process will appear heat concentration, this will lead to
The advantages of molten bath is too big, and use is netted, Openworks shape is in time to conduct heat in time to substrate, reduces thermal deformation.
It further, the use of the specific steps of marmem printing auxiliary support structure include: 21) to control powder-laying roller
The layer overlay marmem bisque on substrate opens laser, and adjusts laser power；
22) laser is scanned along slice information, and powder melts therewith, and printing completes one layer；
23) 22) -23 are repeated) step, until auxiliary support structure printing is completed.
Further, include: using the specific steps that part material continues to print target part
31) powder-laying roller layer overlay part material metal bisque on substrate is controlled, laser is opened, adjusts laser function
Rate；
32) laser is scanned along slice information, and powder melts therewith, and printing completes one layer；
33) 31) -32 are repeated) step, until the printing of entire part is completed.
Embodiment one
1. designing CAD 3D model and the customization support of part using Computerized three-dimensional modeling software (such as UG, ProE)
CAD 3D model, save as stl file after then being handled by Slice Software, will file import metal 3D printer in；
2. opening laser, NiTi (the shape memory conjunction of powder-laying roller layer overlay about 0.1-0.2mm on substrate is controlled
Gold) bisque, it adjusts laser power (being such as adjusted to 100W-400W)；
3. laser is scanned along slice information, powder melts therewith；Printing customization support；
4. 2-3 step is repeated, until customization support printing is completed；
5. controlling powder-laying roller layer overlay part material metal bisque on substrate, thickness 0.05mm opens laser, adjusts
Whole laser power (being such as adjusted to 100W-400W)；
6. laser is scanned along slice information, powder melts therewith, and printing completes one layer；
7. 5-6 step is repeated, until the printing of entire part is completed；
8. finally part is cut down from support.
Since the present invention is based on the methods of the metal 3D printing components of customization support construction using laser fusing shape note
Recall alloy, and according to the pattern accumulation molding of customization, and continues to print target workpiece on this basis, therefore metal can be discharged
3D printing residual stress simultaneously improves printing workpiece buckling deformation.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of method of the metal 3D printing components based on customization support construction, which comprises the steps of:
1) structure according to the structure of target part designed for the Auxiliary support of support target part；
2) threedimensional model of target part and the threedimensional model of auxiliary support structure are established using Computerized three-dimensional software, then by
Slice information is obtained after Slice Software processing, and slice information is imported into metal 3D printer；
3) auxiliary support structure first is printed using marmem；
4) after the completion of auxiliary support structure printing, continue to print target part on this basis using part material；
5) after the completion of target part printing, target part is separated by way of cutting with auxiliary support structure, obtains target
Part.
2. the method for the metal 3D printing components according to claim 1 based on customization support construction, it is characterised in that:
The height of auxiliary support structure should be greater than or equal to target part height.
3. the method for the metal 3D printing components according to claim 1 based on customization support construction, it is characterised in that:
The auxiliary support structure is equipped with heat release hole.
4. the method for the metal 3D printing components according to claim 3 based on customization support construction, it is characterised in that:
The heat release hole extends along the longitudinal direction of auxiliary support structure, and runs through auxiliary support structure.
5. the method for the metal 3D printing components according to claim 1 or 3 based on customization support construction, feature exist
In: the auxiliary support structure is reticular structure.
6. the method for the metal 3D printing components according to claim 1 based on customization support construction, it is characterised in that:
Specific steps using marmem printing auxiliary support structure include: 21) to control powder-laying roller layer overlay on substrate
Marmem bisque opens laser, and adjusts laser power；
22) laser is scanned along slice information, and powder melts therewith, and printing completes one layer；
23) 22) -23 are repeated) step, until auxiliary support structure printing is completed.
7. the method for the metal 3D printing components according to claim 1 based on customization support construction, it is characterised in that:
Include: using the specific steps that part material continues to print target part
31) powder-laying roller layer overlay part material metal bisque on substrate is controlled, laser is opened, adjusts laser power；
32) laser is scanned along slice information, and powder melts therewith, and printing completes one layer；
33) 31) -32 are repeated) step, until the printing of entire part is completed.
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| CN201811455997.4A CN109550952B (en) | 2018-11-30 | 2018-11-30 | Method for metal 3D printing of parts based on customized supporting structure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109513931A (en) * | 2018-11-21 | 2019-03-26 | 福州大学 | A kind of control method of increasing material manufacturing residual thermal stress and its induced distortion |
| CN111030340A (en) * | 2019-12-31 | 2020-04-17 | 南京师范大学 | Motor rotor structure based on metal three-dimensional printing, motor rotor, motor and method |
| CN114012108A (en) * | 2021-11-02 | 2022-02-08 | 深圳市华阳新材料科技有限公司 | 3D printing exception handling method |
| CN116689785A (en) * | 2023-08-08 | 2023-09-05 | 西安赛隆增材技术股份有限公司 | Additive manufacturing method for solving warp deformation of suspended surface structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN116689785A (en) * | 2023-08-08 | 2023-09-05 | 西安赛隆增材技术股份有限公司 | Additive manufacturing method for solving warp deformation of suspended surface structure |
| CN116689785B (en) * | 2023-08-08 | 2023-10-17 | 西安赛隆增材技术股份有限公司 | Additive manufacturing method for solving warp deformation of suspended surface structure |
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