CN113103573A - Atmosphere detection device and method in additive manufacturing - Google Patents
Atmosphere detection device and method in additive manufacturing Download PDFInfo
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- CN113103573A CN113103573A CN202110307101.3A CN202110307101A CN113103573A CN 113103573 A CN113103573 A CN 113103573A CN 202110307101 A CN202110307101 A CN 202110307101A CN 113103573 A CN113103573 A CN 113103573A
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- camera
- atmosphere
- mass spectrometer
- detection
- additive manufacturing
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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
- 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
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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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/62—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode
Abstract
The invention belongs to the technical field of additive manufacturing, and discloses an atmosphere detection device and method in additive manufacturing. The device comprises a mass spectrometer detection unit and a camera detection unit; in the method, the atmosphere change of the directional energy deposition printing area is detected on line by using the mass spectrometer detection unit for the first time, and the number and distribution of sputtering in the printing process are detected on line by using the camera detection unit. The invention solves the problem that the atmosphere in the additive manufacturing process cannot be effectively detected in the prior art, and realizes the atmosphere detection in the additive manufacturing process.
Description
Technical Field
The invention belongs to the technical field of additive manufacturing, and particularly relates to an atmosphere detection device and method in additive manufacturing.
Background
Additive manufacturing is regarded as a new growth point of future industrial development, and additive manufacturing technology is greatly developed, but large-scale industrial application is not formed yet. The performance and the manufacturing precision of the formed part in the manufacturing process can be a certain amount of unqualified products, the yield of the current SLM (Selective Laser Melting) product is about 70%, and the progress of large-scale industrial application of additive manufacturing is seriously influenced by the lower yield. The main reason is that there is no solution for the process repeatability and quality reliability in the machining process, and a real-time detection device or equipment is urgently needed to monitor the additive manufacturing process and perform feedback processing, so that the whole machining process is optimized in real time by performing targeted regulation and control on the machining process, and the final finished product rate and quality precision of components are improved.
Disclosure of Invention
The invention provides an atmosphere detection device and method in additive manufacturing, and solves the problem that the atmosphere in the additive manufacturing process cannot be effectively detected in the prior art.
The invention provides an atmosphere detection device in additive manufacturing, which comprises: a mass spectrometer detection unit, a camera detection unit;
the mass spectrometer detection unit is used for carrying out online detection on atmosphere change of the directional energy deposition printing area;
the camera detection unit is used for carrying out online detection on the number and distribution of splashes in the printing process.
Preferably, the mass spectrometer detection unit comprises: a time-of-flight mass spectrometer, a probe, a capillary, a mass spectrometer processor;
the mass spectrometer processor is connected with the time-of-flight mass spectrometer, a sample feeding system of the time-of-flight mass spectrometer is connected with the probe, and the capillary tube is fixed on the probe;
the capillary is used for extracting the atmosphere of the obtained printing area;
the probe is used for introducing the atmosphere obtained by the capillary extraction into the time-of-flight mass spectrometer;
the time-of-flight mass spectrometer is used for carrying out atmosphere analysis to obtain an atmosphere analysis result;
and the mass spectrometer processor is used for displaying the atmosphere analysis result.
Preferably, the camera detection unit includes: a camera, a camera switch, a camera processor;
the camera is respectively connected with the camera switch and the camera processor;
the camera is used for collecting a sputtering image in the printing process;
the camera switch is used for remotely controlling a shooting switch of the camera;
the camera processor is used for displaying the sputtering image.
Preferably, the camera comprises a plurality of discrete high-speed industrial cameras, the plurality of high-speed industrial cameras are respectively arranged at different area positions close to the workbench, and the plurality of high-speed industrial cameras are used for acquiring sputtering images from different angles.
Preferably, the time-of-flight mass spectrometer is an electron impact ion source time-of-flight mass spectrometer EI-TOFMS 0610.
Preferably, MEMRECAM ACS-1 is selected as the camera.
Preferably, the atmosphere detection device in additive manufacturing further includes: a processing table unit; the table unit includes: a worktable and a substrate; the base plate is positioned on the workbench and used for placing a workpiece to be processed;
the mass spectrometer detection unit and the camera detection unit are both arranged in the area range close to the processing table unit.
Preferably, the atmosphere detection device in additive manufacturing further includes: a laser processing unit and a protective gas supply unit; the protective gas supply unit is communicated with the laser processing unit;
the laser processing unit includes: the device comprises a computer, a mechanical arm control cabinet, an optical fiber coupler, an axial robot, a mechanical arm, a transmission optical fiber, a laser processing head and a powder feeding device;
the computer respectively with the arm switch board the fiber coupler axial robot connects, axial robot with the arm is connected, the arm with the laser beam machining head is connected, the fiber coupler passes through transmission optic fibre with the laser beam machining head intercommunication, send whitewashed device with the laser beam machining head is connected.
The invention provides an atmosphere detection method in additive manufacturing, which utilizes the atmosphere detection device in additive manufacturing to detect atmosphere, and comprises the following steps: carrying out online detection on atmosphere change of the directional energy deposition printing area by using a mass spectrometer detection unit; and (3) utilizing a camera detection unit to perform online detection on the number and distribution of the sputtered particles in the printing process.
One or more technical schemes provided by the invention at least have the following technical effects or advantages:
in the invention, the mass spectrometer detection unit is used for carrying out online detection on the atmosphere change of the directional energy deposition printing area for the first time, and the camera detection unit is used for carrying out online detection on the number and distribution of sputtering in the printing process, so that the atmosphere detection in the additive manufacturing process is realized.
Drawings
Fig. 1 is a schematic structural diagram of an atmosphere detection apparatus in additive manufacturing according to an embodiment of the present invention;
fig. 2 is a diagram of an experimental result obtained by a camera in an atmosphere detection method in additive manufacturing according to an embodiment of the present invention.
The device comprises a computer 1, a protective gas supply unit 2, a mechanical arm control cabinet 3, an optical fiber coupler 4, an axial robot 5, a mechanical arm 6, a transmission optical fiber 7, a laser processing head 8, a powder feeding device 9, a capillary tube 10, a probe 11, a mass spectrometer processor 12, a time-of-flight mass spectrometer 13, a workbench 14, a substrate 15, a workpiece 16 to be processed, a camera 17, a camera processor 18 and a camera switch 19.
Detailed Description
In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.
Example 1:
Wherein the mass spectrometer detection unit comprises: time-of-flight mass spectrometer, probe, capillary, mass spectrometer processor. The mass spectrometer processor is connected with the time-of-flight mass spectrometer, a sample feeding system of the time-of-flight mass spectrometer is connected with the probe, and the capillary tube is fixed on the probe; the capillary is used for extracting the atmosphere of the obtained printing area; the probe is used for introducing the atmosphere obtained by the capillary extraction into the time-of-flight mass spectrometer; the time-of-flight mass spectrometer is used for carrying out atmosphere analysis to obtain an atmosphere analysis result; and the mass spectrometer processor is used for displaying the atmosphere analysis result.
Wherein the camera detection unit includes: camera, camera switch, camera processor. The camera is respectively connected with the camera switch and the camera processor; the camera is used for collecting a sputtering image in the printing process; the camera switch is used for remotely controlling a shooting switch of the camera; the camera processor is used for displaying the sputtering image.
In a preferred scheme, the camera comprises a plurality of discrete high-speed industrial cameras, the high-speed industrial cameras are respectively installed at different area positions close to the workbench, and the high-speed industrial cameras are used for acquiring sputtering images from different angles.
In a specific application, the time-of-flight mass spectrometer can be an electron bombardment ion source time-of-flight mass spectrometer EI-TOFMS 0610. The camera can be MEMRECAM ACS-1.
Example 2:
with the apparatus provided in embodiment 1, embodiment 2 provides an atmosphere detection method in additive manufacturing, comprising: carrying out online detection on atmosphere change of the directional energy deposition printing area by using a mass spectrometer detection unit; and (3) utilizing a camera detection unit to perform online detection on the number and distribution of the sputtered particles in the printing process.
The present invention is further described below.
As shown in fig. 1, an embodiment of the present invention provides an atmosphere detection apparatus in additive manufacturing, including: a mass spectrometer detection unit, a camera detection unit, a processing table unit, a laser processing unit, and a shielding gas supply unit 2.
The mass spectrometer detection unit comprises: time-of-flight mass spectrometer 13, probe 11, capillary 10, mass spectrometer processor 12. The mass spectrometer processor 12 is connected with the time-of-flight mass spectrometer 13, a sample injection system of the time-of-flight mass spectrometer 13 is connected with the probe 11, and the capillary 10 is fixed on the probe 11. The camera detection unit includes: camera 17, camera switch 19, camera processor 18; the camera 17 is connected to the camera switch 19 and the camera processor 18, respectively. The table unit includes: a table 14, a substrate 15; the base plate 15 is positioned on the workbench 14, and the base plate 15 is used for placing a workpiece 16 to be processed; the mass spectrometer detection unit and the camera detection unit are both arranged in the area range close to the processing table unit. The shielding gas supply unit 2 communicates with the laser processing unit. The laser processing unit includes: the device comprises a computer 1, a mechanical arm control cabinet 3, an optical fiber coupler 4, an axial robot 5, a mechanical arm 6, a transmission optical fiber 7, a laser processing head 8 and a powder feeding device 9. Computer 1 respectively with arm switch board 3 optical fiber coupler 4 axial robot 5 is connected, axial robot 5 with arm 6 is connected, arm 6 with laser beam machining head 8 is connected, optical fiber coupler 4 passes through transmission optic fibre 7 with laser beam machining head 8 intercommunication, send powder device 9 with laser beam machining head 8 is connected.
Specifically, the mass spectrometer detection unit is installed near the processing table unit, the mass spectrometer detection unit extracts the atmosphere in the central region of the print body through the capillary 10 fixed to the probe 11 by means of tape or the like, introduces the extracted atmosphere into the time-of-flight mass spectrometer 13 through the probe 11, then analyzes the extracted atmosphere through the electron bombardment source and the mass analyzer inside the time-of-flight mass spectrometer 13, and feeds back the analysis result to the mass spectrometer processor 12 through software equipment matched with the time-of-flight mass spectrometer 13.
The camera switch 19 is used to remotely control the camera 17's shooting switch near the center area of the print volume to facilitate operation and reduce the effect on the print volume center area atmosphere.
The camera 17 may comprise a plurality of discrete high speed industrial cameras facing toward the workpiece 16 to be machined from different angles for monitoring the number and area of spatter generated near the molten pool and displaying the results on the camera processor 18, and the experimental results taken by the camera 17 are shown in fig. 2.
Therefore, the mass spectrometer detection unit and the camera detection unit should be started before the laser processing unit starts to work and debugged to a good working state so as to ensure the integrity of atmosphere detection in the additive manufacturing process and reduce errors.
The atmosphere detection device and method in additive manufacturing provided by the embodiment of the invention at least have the following technical effects:
the atmosphere change of the directional energy deposition printing area is detected on line by using the time-of-flight mass spectrometer for the first time, and the sputtering number and distribution in the printing process are detected on line by using the camera, so that the atmosphere detection in the additive manufacturing process is realized; the device provided by the invention has the advantages of simple structure, convenience in operation and strong adaptability.
Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (9)
1. An atmosphere detection device in additive manufacturing, comprising: a mass spectrometer detection unit, a camera detection unit;
the mass spectrometer detection unit is used for carrying out online detection on atmosphere change of the directional energy deposition printing area;
the camera detection unit is used for carrying out online detection on the number and distribution of splashes in the printing process.
2. The atmosphere detection device in additive manufacturing according to claim 1, wherein the mass spectrometer detection unit comprises: a time-of-flight mass spectrometer, a probe, a capillary, a mass spectrometer processor;
the mass spectrometer processor is connected with the time-of-flight mass spectrometer, a sample feeding system of the time-of-flight mass spectrometer is connected with the probe, and the capillary tube is fixed on the probe;
the capillary is used for extracting the atmosphere of the obtained printing area;
the probe is used for introducing the atmosphere obtained by the capillary extraction into the time-of-flight mass spectrometer;
the time-of-flight mass spectrometer is used for carrying out atmosphere analysis to obtain an atmosphere analysis result;
and the mass spectrometer processor is used for displaying the atmosphere analysis result.
3. The atmosphere detection apparatus in additive manufacturing according to claim 1, wherein the camera detection unit includes: a camera, a camera switch, a camera processor;
the camera is respectively connected with the camera switch and the camera processor;
the camera is used for collecting a sputtering image in the printing process;
the camera switch is used for remotely controlling a shooting switch of the camera;
the camera processor is used for displaying the sputtering image.
4. The apparatus of claim 3, wherein the camera comprises a plurality of discrete high-speed industrial cameras, each mounted at a different area location near the work table, the plurality of high-speed industrial cameras being configured to acquire sputter images from different angles.
5. The atmosphere detection apparatus in additive manufacturing according to claim 2, wherein the time-of-flight mass spectrometer is selected from an electron impact ion source time-of-flight mass spectrometer EI-TOFMS 0610.
6. Atmosphere detection apparatus in additive manufacturing according to claim 3, wherein the camera is selected from MEMRECAMACS-1.
7. The atmosphere detection device in additive manufacturing according to claim 1, further comprising: a processing table unit; the table unit includes: a worktable and a substrate; the base plate is positioned on the workbench and used for placing a workpiece to be processed;
the mass spectrometer detection unit and the camera detection unit are both arranged in the area range close to the processing table unit.
8. The atmosphere detection device in additive manufacturing according to claim 1, further comprising: a laser processing unit and a protective gas supply unit; the protective gas supply unit is communicated with the laser processing unit;
the laser processing unit includes: the device comprises a computer, a mechanical arm control cabinet, an optical fiber coupler, an axial robot, a mechanical arm, a transmission optical fiber, a laser processing head and a powder feeding device;
the computer respectively with the arm switch board the fiber coupler axial robot connects, axial robot with the arm is connected, the arm with the laser beam machining head is connected, the fiber coupler passes through transmission optic fibre with the laser beam machining head intercommunication, send whitewashed device with the laser beam machining head is connected.
9. An atmosphere detection method in additive manufacturing, characterized in that atmosphere detection is performed using the atmosphere detection apparatus in additive manufacturing according to any one of claims 1 to 8, the method comprising: carrying out online detection on atmosphere change of the directional energy deposition printing area by using a mass spectrometer detection unit; and (3) utilizing a camera detection unit to perform online detection on the number and distribution of the sputtered particles in the printing process.
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| CN202110307101.3A CN113103573A (en) | 2021-03-23 | 2021-03-23 | Atmosphere detection device and method in additive manufacturing |
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| CN202110307101.3A CN113103573A (en) | 2021-03-23 | 2021-03-23 | Atmosphere detection device and method in additive manufacturing |
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| CN109128171A (en) * | 2018-11-07 | 2019-01-04 | 沈阳航空航天大学 | A kind of device refining increasing material manufacturing titanium alloy crystal grain |
| CN111795977A (en) * | 2020-06-08 | 2020-10-20 | 武汉大学 | Online real-time monitoring system for multiple monitoring devices in metal additive manufacturing |
| US20200376553A1 (en) * | 2015-10-30 | 2020-12-03 | Seurat Technologies, Inc. | Additive Manufacturing System And Method |
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2021
- 2021-03-23 CN CN202110307101.3A patent/CN113103573A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105209192A (en) * | 2013-04-26 | 2015-12-30 | 联合工艺公司 | Local contamination detection in additive manufacturing |
| US20200376553A1 (en) * | 2015-10-30 | 2020-12-03 | Seurat Technologies, Inc. | Additive Manufacturing System And Method |
| CN108788152A (en) * | 2018-06-29 | 2018-11-13 | 武汉大学 | Have the increasing material system of processing and method of environment composition on-line checking function |
| CN109128171A (en) * | 2018-11-07 | 2019-01-04 | 沈阳航空航天大学 | A kind of device refining increasing material manufacturing titanium alloy crystal grain |
| CN111795977A (en) * | 2020-06-08 | 2020-10-20 | 武汉大学 | Online real-time monitoring system for multiple monitoring devices in metal additive manufacturing |
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Effective date of registration: 20220118 Address after: 414024 floors 2, 3 and 4, R & D building, Yueyang modern equipment manufacturing industrial park, muligang Avenue, Yueyang Economic and Technological Development Zone, Yueyang City, Hunan Province Applicant after: Yueyang Luojia Intelligent Technology Co.,Ltd. Address before: 430072 Hubei Province, Wuhan city Wuchang District of Wuhan University Luojiashan Applicant before: WUHAN University |
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Inventor after: Liu Sheng Inventor after: Min Yazhou Inventor after: Yang Yifan Inventor after: Mi Jiqian Inventor before: Li Hui Inventor before: Liu Sheng Inventor before: Shen Shengnan Inventor before: Min Yazhou Inventor before: Yang Yifan Inventor before: Mi Jiqian |
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Application publication date: 20210713 |