CN114029509A - 3D printing process of built-in pipeline part - Google Patents
3D printing process of built-in pipeline part Download PDFInfo
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- CN114029509A CN114029509A CN202111333127.1A CN202111333127A CN114029509A CN 114029509 A CN114029509 A CN 114029509A CN 202111333127 A CN202111333127 A CN 202111333127A CN 114029509 A CN114029509 A CN 114029509A
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000010146 3D printing Methods 0.000 title claims abstract description 20
- 230000008569 process Effects 0.000 title claims abstract description 17
- 238000007639 printing Methods 0.000 claims abstract description 38
- 238000002844 melting Methods 0.000 claims abstract description 29
- 230000008018 melting Effects 0.000 claims abstract description 29
- 239000002184 metal Substances 0.000 claims abstract description 22
- 239000000843 powder Substances 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 15
- 238000013461 design Methods 0.000 claims abstract description 5
- 238000012360 testing method Methods 0.000 claims description 11
- 239000000758 substrate Substances 0.000 claims description 7
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 6
- 238000000227 grinding Methods 0.000 claims description 6
- 239000012535 impurity Substances 0.000 claims description 4
- 239000011261 inert gas Substances 0.000 claims description 4
- 239000000155 melt Substances 0.000 claims description 4
- 229910003407 AlSi10Mg Inorganic materials 0.000 claims description 3
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 238000005034 decoration Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 238000005498 polishing Methods 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims description 2
- 230000003647 oxidation Effects 0.000 claims 1
- 238000007254 oxidation reaction Methods 0.000 claims 1
- 230000007547 defect Effects 0.000 abstract description 6
- 239000002245 particle Substances 0.000 abstract description 2
- 238000003860 storage Methods 0.000 abstract description 2
- 230000004927 fusion Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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
- B22F10/30—Process control
- B22F10/36—Process control of energy beam parameters
- B22F10/366—Scanning parameters, e.g. hatch distance or scanning strategy
-
- 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
- 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
- B22F10/80—Data acquisition or data processing
- B22F10/85—Data acquisition or data processing for controlling or regulating additive manufacturing processes
-
- 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
-
- 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
- B33Y80/00—Products made by additive manufacturing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Automation & Control Theory (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention provides a 3D printing process for a built-in pipeline part, and relates to the technical field of 3D printing processes. The 3D printing process based on the built-in pipeline part comprises the following steps: s1, importing the part model to be printed into three-dimensional software, carrying out slicing layering and optimized support structure design on the part to be printed by utilizing the three-dimensional software, planning a subsequent laser scanning path while determining the slicing layering position and thickness, and importing data into a printer; s2, placing the metal printing material in the powder state in a storage bin of selective laser melting equipment, and setting equipment parameters, wherein the equipment parameters specifically comprise: the profile spot diameter is 60-80um, the filling spot diameter is 90-110um, the profile laser power is 150-. Through setting the parameters, the defects that the prior printed part has large particle structures, pits, fusion impermeability and the like which are visible to naked eyes can be avoided.
Description
Technical Field
The invention relates to the technical field of 3D printing processes, in particular to a 3D printing process for a built-in pipeline part.
Background
SLM (selective laser melting) is a main technical approach in metal material additive manufacturing, laser is selected as an energy source in the technology, layer-by-layer scanning is carried out on a metal powder bed layer according to a planned path in a three-dimensional CAD slicing model, the scanned metal powder achieves the effect of metallurgical bonding through melting and solidification, and finally metal parts designed by the model are obtained.
The surface quality of a 3D printing (SLM) product is determined by a material, a part structure and process parameters, the process parameters of the 3D printing (SLM) generally include a filling light spot diameter, a filling scanning speed, a filling laser power, a profile light spot diameter, a profile scanning power, a profile scanning speed, a scanning strategy and the like, the process parameters set by an equipment provider when the equipment leaves a factory generate macroscopic defects when printing a part (refer to fig. 1) having a built-in pipeline, and the main surfaces of the defects are as follows: there are large grain structures, pits, and melt-impervious in the area shown in fig. 2.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a 3D printing process of a built-in pipeline part, which solves the problems that the part has large particle structures, pits and melt-tight defects caused by inaccurate parameters when the equipment leaves a factory in the past.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: A3D printing process for built-in pipeline parts comprises the following steps:
s1, preparing the foundation
Firstly, carrying out size measurement on a part to be printed, then importing a part model to be printed into three-dimensional software, carrying out slicing layering and optimized support structure design on the part to be printed by utilizing the three-dimensional software, planning a subsequent laser scanning path while determining the position and thickness of the slicing layering, carrying out slicing export after the slicing is finished, and importing data into a printer;
s2 preparation of laser melting equipment
Open the printing cabin of selectivity laser melting equipment and clear away inside impurity, place the metal printing material of powder state in the feed bin of selectivity laser melting equipment, seal the printing cabin and set up selectivity laser melting equipment parameter, specifically include: the profile spot diameter is 60-80um, the filling spot diameter is 90-110um, the profile laser power is 150-;
s3, 3D printing
When in printing, a laser of the selective laser melting equipment emits a beam of laser, the laser melts the metal printing material in a powder state in an irradiation area, the melted metal is rapidly cooled and solidified, after a layer of printing is finished, the forming substrate is lowered by a layer thickness height, then a layer of new metal printing material in a powder state is laid by a scraper, and the steps are repeated until a workpiece is formed;
s4, part decoration and test
After printing is finished, redundant powder on a substrate of the selective laser melting equipment is swept away, a part is taken out, then a supporting structure on the model is removed, a grinding machine is used for grinding and polishing all parts of the part, a high-pressure cleaning machine is used for cleaning the part, finally, an airtight testing table is used for testing the airtightness quality of the part, and a qualified product is obtained after success.
Preferably, the metallic printing material in the powder state in S2 is AlSi10Mg。
Preferably, in S3, after the printing chamber of the selective laser melting apparatus is sealed, the printing chamber needs to be filled with an inert gas, where the inert gas is nitrogen or argon, so as to prevent the metal from being oxidized during melt molding.
(III) advantageous effects
The invention provides a 3D printing process for a built-in pipeline part. The method has the following beneficial effects:
the invention optimizes the layered thickness and the supporting structure, utilizes the comparison of multiple printing tests, and sets the parameters of the selective laser melting equipment, and concretely comprises the following steps: the diameter of the outline light spot is 60-80um, the diameter of the filling light spot is 90-110um, the power of the outline laser is 150-.
Drawings
FIG. 1 is a schematic view of the components of the present invention with a built-in conduit;
FIG. 2 is a schematic view of a defect site of a part of the present invention;
FIG. 3 is a schematic view of a test part of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b):
as shown in fig. 1 to 3, an embodiment of the present invention provides a 3D printing process for a built-in pipe part, including the following steps:
s1, preparing the foundation
Firstly, carrying out size measurement on a part to be printed, then importing a part model to be printed into three-dimensional software, carrying out slicing layering and optimized support structure design on the part to be printed by utilizing the three-dimensional software, wherein the good support structure design can facilitate subsequent separation of a support structure and the part, planning a subsequent laser scanning path while determining the slicing layering position and thickness, the 3D printing efficiency can be influenced by different layering positions and layering thicknesses, and exporting the sliced part after completing, and importing data into a printer;
s2 preparation of laser melting equipment
Open the printing cabin of selectivity laser melting equipment and clear away inside impurity, impurity remains inside it when avoiding metal forming, influences the quality of part, places the metal printing material of powder state in the feed bin of selectivity laser melting equipment, and sealed printing cabin sets up selectivity laser melting equipment parameter, specifically includes: the profile spot diameter is 60-80um, the filling spot diameter is 90-110um, the profile laser power is 150-;
s3, 3D printing
The laser of the selective laser melting equipment emits a beam of laser during printing, the laser melts the metal printing material in a powder state in an irradiation area, the melted metal is rapidly cooled and solidified, after a layer is printed, the forming substrate is lowered by a layered layer thickness height through a lifting mechanism of the laser melting equipment, then a scraper scrapes the powder in a storage bin onto the forming substrate, a new layer of metal printing material in a powder state can be laid, the laser melts the metal printing material in the powder state in the irradiation area again, the melted metal is rapidly cooled and solidified, and the steps are repeated until a workpiece is formed;
s4, part decoration and test
After printing is completed, redundant powder on a substrate of the selective laser melting equipment is swept away, a part is taken out, then a supporting structure on a model is removed, the supporting structure can be removed in a linear cutting mode, when the supporting structure is designed, on the premise that the supporting structure has a stable supporting function, the contact area between the supporting structure and the part is enabled to be as small as possible, so that subsequent separation between the supporting structure and the part is facilitated, a grinding machine is used for grinding and polishing each part of the part, a high-pressure cleaning machine is used for cleaning the part, finally, an airtight testing table is used for testing the airtightness quality of the part, and a qualified product is obtained after success.
The metallic printing material in the powder state in S2 is AlSi10Mg。
In S3, after the printing chamber of the selective laser melting apparatus is sealed, the printing chamber needs to be filled with an inert gas, which is nitrogen or argon, to prevent the metal from being oxidized during melting and forming.
In this embodiment, in order to find the optimal setting of the use parameters of the selective laser melting apparatus in the 3D printing process of the built-in pipe part, a set of parameters is obtained through multiple repeated experimental comparisons (printing the part of fig. 3): the method specifically comprises the following steps: the method has the advantages that the diameter of the outline light spot is 60-80um, the diameter of the filling light spot is 90-110um, the power of the outline laser is 150-.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. The utility model provides a 3D printing technology of built-in pipeline part which characterized in that: the method comprises the following steps:
s1, preparing the foundation
Firstly, carrying out size measurement on a part to be printed, then importing a part model to be printed into three-dimensional software, carrying out slicing layering and optimized support structure design on the part to be printed by utilizing the three-dimensional software, planning a subsequent laser scanning path while determining the position and thickness of the slicing layering, carrying out slicing export after the slicing is finished, and importing data into a printer;
s2 preparation of laser melting equipment
Open the printing cabin of selectivity laser melting equipment and clear away inside impurity, place the metal printing material of powder state in the feed bin of selectivity laser melting equipment, seal the printing cabin and set up selectivity laser melting equipment parameter, specifically include: the profile spot diameter is 60-80um, the filling spot diameter is 90-110um, the profile laser power is 150-;
s3, 3D printing
When in printing, a laser of the selective laser melting equipment emits a beam of laser, the laser melts the metal printing material in a powder state in an irradiation area, the melted metal is rapidly cooled and solidified, after a layer of printing is finished, the forming substrate is lowered by a layer thickness height, then a layer of new metal printing material in a powder state is laid by a scraper, and the steps are repeated until a workpiece is formed;
s4, part decoration and test
After printing is finished, redundant powder on a substrate of the selective laser melting equipment is swept away, a part is taken out, then a supporting structure on the model is removed, a grinding machine is used for grinding and polishing all parts of the part, a high-pressure cleaning machine is used for cleaning the part, finally, an airtight testing table is used for testing the airtightness quality of the part, and a qualified product is obtained after success.
2. The 3D printing process of the built-in pipeline part as claimed in claim 1, wherein: the metallic printing material in the powder state in S2 is AlSi10Mg。
3. The 3D printing process of the built-in pipeline part as claimed in claim 1, wherein: in the step S3, after the printing chamber of the selective laser melting apparatus is sealed, the printing chamber needs to be filled with an inert gas, which is nitrogen or argon, to prevent oxidation of the metal during melting and molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111333127.1A CN114029509A (en) | 2021-11-11 | 2021-11-11 | 3D printing process of built-in pipeline part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111333127.1A CN114029509A (en) | 2021-11-11 | 2021-11-11 | 3D printing process of built-in pipeline part |
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| Publication Number | Publication Date |
|---|---|
| CN114029509A true CN114029509A (en) | 2022-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111333127.1A Pending CN114029509A (en) | 2021-11-11 | 2021-11-11 | 3D printing process of built-in pipeline part |
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| Country | Link |
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| CN (1) | CN114029509A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114635149A (en) * | 2022-03-01 | 2022-06-17 | 中国电建集团城市规划设计研究院有限公司 | Bipolar plate and preparation method thereof |
| CN114986687A (en) * | 2022-05-31 | 2022-09-02 | 江苏乾度智造高科技有限公司 | Method for cleaning grooves of inner holes of 3D printed parts |
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| CN108907190A (en) * | 2018-07-25 | 2018-11-30 | 沈阳精合数控科技开发有限公司 | A kind of 3D printing increasing material manufacturing method of bowl-type thin-walled parts |
| CN108941560A (en) * | 2018-07-27 | 2018-12-07 | 中南大学 | A method of it eliminating Rene104 nickel base superalloy laser gain material and manufactures crackle |
| CN110170654A (en) * | 2019-06-28 | 2019-08-27 | 陕西理工大学 | Additive manufacturing method of square-hole pipeline aluminum alloy part |
| CN110465658A (en) * | 2018-05-10 | 2019-11-19 | 中国航发商用航空发动机有限责任公司 | The method for improving selective laser fusing forming parts with complex structures dimensional accuracy |
| CN111069607A (en) * | 2019-12-09 | 2020-04-28 | 西安航天发动机有限公司 | Forming method of complex multi-cavity narrow-runner injector |
| US20200130101A1 (en) * | 2018-10-26 | 2020-04-30 | General Electric Company | Additive manufactured object with passage having varying cross-sectional shape |
-
2021
- 2021-11-11 CN CN202111333127.1A patent/CN114029509A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110465658A (en) * | 2018-05-10 | 2019-11-19 | 中国航发商用航空发动机有限责任公司 | The method for improving selective laser fusing forming parts with complex structures dimensional accuracy |
| CN108907190A (en) * | 2018-07-25 | 2018-11-30 | 沈阳精合数控科技开发有限公司 | A kind of 3D printing increasing material manufacturing method of bowl-type thin-walled parts |
| CN108941560A (en) * | 2018-07-27 | 2018-12-07 | 中南大学 | A method of it eliminating Rene104 nickel base superalloy laser gain material and manufactures crackle |
| US20200130101A1 (en) * | 2018-10-26 | 2020-04-30 | General Electric Company | Additive manufactured object with passage having varying cross-sectional shape |
| CN110170654A (en) * | 2019-06-28 | 2019-08-27 | 陕西理工大学 | Additive manufacturing method of square-hole pipeline aluminum alloy part |
| CN111069607A (en) * | 2019-12-09 | 2020-04-28 | 西安航天发动机有限公司 | Forming method of complex multi-cavity narrow-runner injector |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114635149A (en) * | 2022-03-01 | 2022-06-17 | 中国电建集团城市规划设计研究院有限公司 | Bipolar plate and preparation method thereof |
| CN114986687A (en) * | 2022-05-31 | 2022-09-02 | 江苏乾度智造高科技有限公司 | Method for cleaning grooves of inner holes of 3D printed parts |
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Application publication date: 20220211 |