CN115338435B - Device for acquiring molten pool state in real time in 3D printing process and use method - Google Patents
Device for acquiring molten pool state in real time in 3D printing process and use method Download PDFInfo
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- CN115338435B CN115338435B CN202211004750.7A CN202211004750A CN115338435B CN 115338435 B CN115338435 B CN 115338435B CN 202211004750 A CN202211004750 A CN 202211004750A CN 115338435 B CN115338435 B CN 115338435B
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- 238000000034 method Methods 0.000 title claims abstract description 49
- 238000010146 3D printing Methods 0.000 title claims abstract description 31
- 230000008569 process Effects 0.000 title claims abstract description 31
- 238000007639 printing Methods 0.000 claims abstract description 24
- 238000010438 heat treatment Methods 0.000 claims abstract description 21
- 230000007246 mechanism Effects 0.000 claims abstract description 9
- 230000008859 change Effects 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims description 6
- 238000007664 blowing Methods 0.000 claims description 4
- 239000000428 dust Substances 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 210000001787 dendrite Anatomy 0.000 description 5
- 239000000155 melt Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 239000000843 powder Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000007499 fusion processing Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229910000601 superalloy Inorganic materials 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
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
- 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
- B22F12/90—Means for process control, e.g. cameras or sensors
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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
- B22F10/80—Data acquisition or data processing
- B22F10/85—Data acquisition or data processing for controlling or regulating additive manufacturing processes
-
- 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
- B22F12/10—Auxiliary heating means
-
- 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
- B22F12/22—Driving means
- B22F12/222—Driving means for motion along a direction orthogonal to the plane of a layer
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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
- 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
- B22F12/70—Gas flow means
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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
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
-
- 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
- B33Y50/00—Data acquisition or data processing for additive manufacturing
- B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
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- 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 discloses a device for acquiring a molten pool state in real time in a 3D printing process and a use method thereof, wherein the device for acquiring the molten pool state comprises a driving seat, a screw rod is symmetrically and rotatably sleeved in an inner cavity of the driving seat, a sliding block is sleeved on the surface thread of the screw rod, a camera box infrared camera is fixedly arranged on the surface of the sliding block respectively, heating mechanisms are arranged on the surfaces of the camera and the infrared camera, a motor is fixedly connected in the middle of the top of the driving seat, and a first gear and a second gear are fixedly sleeved on the output end of the motor and the top of the screw rod respectively. According to the device for acquiring the molten pool state in real time in the 3D printing process and the application method, the camera and the infrared camera are installed, and real-time video recording is conducted on the molten pool and the heat affected zone thereof in the printing process. The feedback data are the size, shape, temperature and change trend of the molten pool and the heat affected zone.
Description
Technical Field
The invention relates to the technical field of 3D printing, in particular to a device for acquiring a molten pool state in real time in a 3D printing process and a use method thereof.
Background
Metal 3D printing enables the fabrication of parts in a layer-by-layer, lane-by-lane manner from a three-dimensional model, thus enabling the rapid fabrication of extremely complex shaped parts, which is very difficult for traditional fabrication methods, however, successful fabrication of parts with ideal mechanical properties has been a challenge for various additive manufacturing techniques, as many factors can affect the evolution of grain structure, on the other hand, fabrication of parts by 3D printing has great potential in controlling grain structure, for example, by using appropriate processing strategies, successful 3D printing of nickel-base superalloy single crystal rods by electron beam powder bed fusion processes, and control of grain structure at specific sites can be achieved by varying process parameters.
The single pass is the basic unit of the powder bed 3D printing process, the growth of grains in the melt pool and the formation of new grains largely determine the evolution of the grain structure in additive manufacturing, experimental observations and numerical simulations show that due to the relatively low temperature gradient and high solidification speed, there is a higher probability of equiaxed grain structure formation in the top region of the melt pool, whereas when the next layer is deposited, the top region remelts, new grains in this region fail to promote the occurrence of equiaxed grain structure, nucleation also occurs at the melt pool boundaries, and are more likely to become effective grains in the finished part, resulting in equiaxed grain structure.
The recoil pressure and marangoni effect drive the bath flow, which may affect dendrite/grain growth in the bath, however, due to the lack of experimental methods to directly observe the extremely fast solidification process, few have been devoted to studying the effect of fluid flow on dendrite growth and new grain formation under 3D printing conditions, controlling new grain formation in metal additive manufacturing is critical to adjusting the grain structure of the as-printed part, temperature gradients and solidification speed are considered to be the primary factors controlling new grain formation, and the melt flow in metal 3D printing is now not an issue.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides a device for acquiring the state of a molten pool in real time in the 3D printing process and a use method thereof, and solves the problem that the melt flow in the current 3D printing process cannot be acquired.
(II) technical scheme
In order to achieve the above purpose, the invention is realized by the following technical scheme: the device for acquiring the molten pool state in real time in the 3D printing process comprises a printer, wherein a rear-end system is arranged on the surface of the printer, and a device for acquiring the molten pool state is arranged on the inner wall of an inner cavity of the printer.
The device for acquiring the molten pool state comprises a driving seat, a screw rod is symmetrically and rotationally sleeved in an inner cavity of the driving seat, a sliding block is sleeved on the surface of the screw rod in a threaded manner, a camera box infrared camera is fixedly installed on the surface of the sliding block respectively, heating mechanisms are arranged on the surfaces of the camera and the infrared camera, a motor is fixedly connected in the middle of the top of the driving seat, and a first gear and a second gear are fixedly sleeved on the output end of the motor and the top of the screw rod respectively;
the heating mechanism comprises a hollow tube, wherein the inner cavity of the hollow tube is fixedly provided with a micro fan and a heating tube respectively, and one end of the hollow tube is fixedly connected with a power module.
The rear end system comprises a display panel, the top of the display panel is rotatably sleeved with a rotary connecting rod, and the bottom of the display panel is fixedly connected with an operating platform.
Preferably, the rotary connecting rod is rotatably sleeved at the top of the printer, and the display panel is connected with the operation table.
Preferably, the driving seat is fixedly connected in the middle of the inner wall of the inner cavity of the printer.
Preferably, the top of the screw rod penetrates through the inner cavity of the driving seat and extends out of the top of the driving seat.
Preferably, the surfaces of the first gear and the second gear are in meshed connection.
Preferably, the side fixedly connected with slider of sliding block, the inner wall symmetry of drive seat is offered the spout, and the slider slip cup joints in the inner chamber of spout.
Preferably, the hollow tube is fixedly arranged at the tops of the camera and the infrared camera, and one extending end is communicated with the camera and the infrared camera lens barrel.
The invention also discloses a device using method for acquiring the state of the molten pool in real time in the 3D printing process, which specifically comprises the following steps:
s1, a camera, an infrared camera and a display panel are started at first, and the camera, the infrared camera and the display panel are connected with each other through signals, so that when a printer starts to perform metal 3D printing, the camera and the infrared camera start to print the printer, wherein the camera can present a printing image, and meanwhile, the infrared camera can present an image printed in an infrared state of the printing image, and the images shot by the camera and the camera can be displayed in the display panel in real time, so that a printing process can acquire a molten pool state, and the size, the shape, the temperature and the change trend of a molten pool and a heat affected zone are presented.
S2, starting a motor to enable a first gear and a second gear at the output end of the motor to be meshed and rotated, enabling a sliding block on the surface of a screw rod to lift, enabling a camera and an infrared camera to follow the change of printing height, and enabling the upper, middle and lower layers to be printed to realize image display;
s3, before printing, the micro fan and the heating pipe are started through the power module, so that the micro fan starts to heat, hot air generated by heating of the micro fan can be sucked by rotation of the micro fan, one end of the hot air is blown to lenses of the camera and the infrared camera along with the extending end of the hot air, the lenses of the camera and the infrared camera are clean by blowing, the lenses are prevented from being influenced by sticky dust, the lenses can be heated through hot air, and the phenomenon that mist can occur to the lenses due to cold and hot alternation of hot air and the lenses in the printing process is avoided.
Advantageous effects
The invention provides a device for acquiring a molten pool state in real time in a 3D printing process and a use method thereof.
Compared with the prior art, the method has the following beneficial effects:
1. according to the device for acquiring the molten pool state in real time in the 3D printing process and the application method, the camera and the infrared camera are installed, and real-time video recording is conducted on the molten pool and the heat affected zone thereof in the printing process. The feedback data are the size, shape, temperature and change trend of the molten pool and the heat affected zone.
2. According to the device for acquiring the molten pool state in real time in the 3D printing process and the application method, the motor is started, the first gear and the second gear at the output end of the motor are meshed and rotated, the sliding block on the surface of the screw rod is lifted, the camera and the infrared camera move along with the change of the printing height, and the images can be displayed on the upper, middle and lower layers of the printing.
3. This device and application method at molten pool state is acquireed in real time in 3D printing process starts miniature fan and heating pipe through power module, makes miniature fan begin to heat, and the steam that its heating produced can be rotated by miniature fan and absorb to blow to the lens of camera and infrared camera along with the one end that extends, one of them guarantees the cleanness of camera and infrared camera lens through blowing, prevents that sticky dust from influencing the shooting, and its through hot gas can heat the lens fast, avoids producing hot air and lens and takes place cold and hot alternately because of printing the process, leads to the phenomenon that the lens can appear fog.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of a back-end system of the present invention;
FIG. 3 is a schematic view of a bath condition acquisition apparatus according to the present invention;
FIG. 4 is an enlarged view of part of the structure of the present invention at A in FIG. 3;
FIG. 5 is a schematic view of a heating mechanism according to the present invention;
FIG. 6 is a graph showing the flow velocity profile of the bottom (curved surface) of the molten pool in the structure of the present invention;
FIG. 7 is a flow field diagram at a molten pool of the structure of the present invention;
FIG. 8 is a schematic representation of dendrite growth in a structured fluid flow according to the present invention;
FIG. 9 is a schematic diagram of a simulated dendrite growth on the scale of a molten pool of the structure of the present invention;
FIG. 10 is a diagram of a simulated dendrite structure of the present invention;
FIG. 11 is a schematic view of the tip speed of the structure of the present invention;
FIG. 12 is a schematic illustration of the structural fluid flow effects of the present invention;
FIG. 13 is a flow diagram in the domain of the present invention;
FIG. 14 is a graph comparing supercooling degree of XZ cross-sections in the middle of the inventive domain.
In the figure: 1. a printer; 2. a back-end system; 21. rotating the connecting rod; 22. a display panel; 23. an operation table; 3. a molten pool state obtaining device; 31. a driving seat; 32. a motor; 33. a screw rod; 34. a first gear; 35. a second gear; 36. a sliding block; 37. a chute; 38. a slide block; 39. a heating mechanism; 391. a hollow tube; 392. a micro fan; 393. heating pipes; 394. a power module; 310. a camera; 311. an infrared camera; 310. a camera; 311. an infrared camera.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, the embodiment of the invention provides a technical scheme: the device for acquiring the molten pool state in real time in the 3D printing process comprises a printer 1, wherein a back-end system 2 is arranged on the surface of the printer 1, and a device 3 for acquiring the molten pool state is arranged on the inner wall of an inner cavity of the printer 1.
Referring to fig. 3-4, the molten pool state obtaining device 3 includes a driving seat 31, a screw rod 33 is symmetrically and rotatably sleeved in an inner cavity of the driving seat 31, a sliding block 36 is screwed on a surface of the screw rod 33, a camera 310 is fixedly installed on a surface of the sliding block 36, a camera 311 is fixedly installed on a side surface of the sliding block 36, a heating mechanism 39 is arranged on surfaces of the camera 310 and the infrared camera 311, a motor 32 is fixedly connected in the middle of the top of the driving seat 31, a first gear 34 and a second gear 35 are fixedly sleeved on an output end of the motor 32 and the top of the screw rod 33, the driving seat 31 is fixedly connected in the middle of an inner cavity wall of the printer 1, the top of the screw rod 33 penetrates through the inner cavity of the driving seat 31 and extends out of the top of the driving seat 31, the first gear 34 is in meshed connection with the surface of the second gear 35, a sliding block 38 is fixedly connected to a sliding block 38 on a side surface of the sliding block 36, a sliding groove 37 is symmetrically and fixedly arranged on an inner wall of the driving seat 31, and the sliding block 38 is slidingly sleeved in the inner cavity of the sliding groove 37.
Referring to fig. 5, the heating mechanism 39 includes a hollow tube 391, wherein a micro fan 392 and a heating tube 393 are fixedly mounted in an inner cavity of the hollow tube 391, one end of the hollow tube 391 is fixedly connected with a power module 394, the hollow tube 391 is fixedly mounted at the top of the camera 310 and the infrared camera 311, and one extended end is mutually communicated with the camera 310 and the lens barrel of the infrared camera 311.
Referring to fig. 2, the back-end system 2 includes a display panel 22, a rotary connecting rod 21 rotatably sleeved on the top of the display panel 22, an operation table 23 fixedly connected to the bottom of the display panel 22, and the rotary connecting rod 21 rotatably sleeved on the top of the printer 1, wherein the display panel 22 and the operation table 23 are connected to each other.
The embodiment of the invention also provides a technical scheme that: the application method of the device for acquiring the molten pool state in real time in the 3D printing process specifically comprises the following steps:
s1, firstly, starting a camera 310, an infrared camera 311 and a display panel 22, wherein the camera 310 and the infrared camera 311 are in signal connection with the display panel 22, so that when the printer 1 starts to perform metal 3D printing, the camera 310 and the infrared camera 311 start to perform image capturing on printing of the printer 1, wherein the camera 310 can present a printing image, meanwhile, the infrared camera 311 can present an image printed in an infrared state of the printing image, the images shot by the camera 310 and the camera 310 can be displayed in real time in the display panel 22, the printing process can acquire a molten pool state, and the size, the shape, the temperature and the variation trend of the molten pool and a heat affected zone are presented, and the details are shown in Figs. 6-14.
S2, starting the motor 32, enabling the first gear 34 and the second gear 35 at the output end of the motor 32 to mesh and rotate, enabling the sliding block 36 on the surface of the screw rod 33 to lift, enabling the camera 310 and the infrared camera 311 to move along with the change of the printing height, and enabling the upper, middle and lower layers to be printed to realize the display of images;
s3, in addition, before printing, firstly, the micro fan 392 and the heating pipe 393 are started through the power module 394, so that the micro fan 392 starts to heat, hot air generated by heating can be sucked by the rotation of the micro fan 392, and one end of the hot air is blown to lenses of the camera 310 and the infrared camera 311 along with the extending end, the cleaning of the lenses of the camera 310 and the infrared camera 311 is ensured by blowing, the shooting is prevented from being influenced by sticky dust, the lenses can be quickly heated by the hot air, and the phenomenon that the lenses are fogged due to the alternation of hot air and cold air generated by the printing process is avoided.
The first gear 34 and the second gear 35 are meshed to rotate, so that the two screw rods 33 rotate oppositely, and the threads on the surfaces of the screw rods 33 are opposite, so that the two sliding blocks 36 are lifted and lowered simultaneously, and the camera 310 and the infrared camera 311 are kept flush.
And all that is not described in detail in this specification is well known to those skilled in the art.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a device of real-time acquisition molten pool state in 3D printing process, includes printer (1), its characterized in that: the surface of the printer (1) is provided with a rear end system (2), and the inner wall of the inner cavity of the printer (1) is provided with a molten pool state acquisition device (3);
the device for acquiring the molten pool state (3) comprises a driving seat (31), a screw rod (33) is symmetrically and rotatably sleeved in an inner cavity of the driving seat (31), a sliding block (36) is sleeved on the surface of the screw rod (33) in a threaded manner, a camera (310) and an infrared camera (311) are fixedly installed on the surface of the sliding block (36) respectively, heating mechanisms (39) are arranged on the surfaces of the camera (310) and the infrared camera (311), a motor (32) is fixedly connected in the middle of the top of the driving seat (31), and a first gear (34) and a second gear (35) are fixedly sleeved on the output end of the motor (32) and the top of the screw rod (33) respectively;
the heating mechanism (39) comprises a hollow pipe (391), wherein the inner cavity of the hollow pipe (391) is fixedly provided with a micro fan (392) and a heating pipe (393) respectively, and one end of the hollow pipe (391) is fixedly connected with a power supply module (394);
the side surface of the sliding block (36) is fixedly connected with a sliding block (38), a sliding groove (37) is symmetrically and fixedly arranged on the inner wall of the driving seat (31), the sliding block (38) is in sliding sleeve connection in an inner cavity of the sliding groove (37), the hollow tube (391) is fixedly arranged at the tops of the camera (310) and the infrared camera (311), and one extending end is communicated with the camera (310) and the infrared camera (311) lens barrel;
the rear end system (2) comprises a display panel (22), a rotary connecting rod (21) is rotatably sleeved at the top of the display panel (22), and an operating table (23) is fixedly connected at the bottom of the display panel (22).
2. An apparatus for acquiring puddle status in real time during 3D printing according to claim 1, wherein: the rotary connecting rod (21) is rotatably sleeved at the top of the printer (1), and the display panel (22) is connected with the operation table (23) mutually.
3. An apparatus for acquiring puddle status in real time during 3D printing according to claim 1, wherein: the driving seat (31) is fixedly connected in the middle of the inner wall of the inner cavity of the printer (1).
4. An apparatus for acquiring puddle status in real time during 3D printing according to claim 1, wherein: the top of the screw rod (33) penetrates through the inner cavity of the driving seat (31) and extends out of the top of the driving seat (31).
5. An apparatus for acquiring puddle status in real time during 3D printing according to claim 1, wherein: the first gear (34) is in meshed connection with the surface of the second gear (35).
6. The method of using the device for acquiring the state of the molten pool in real time in the 3D printing process according to any one of claims 1 to 5, comprising the following steps:
s1, firstly starting a camera (310), an infrared camera (311) and a display panel (22), wherein the camera (310) and the infrared camera (311) are in signal connection with the display panel (22), so that when a printer (1) starts to perform metal 3D printing, the camera (310) and the infrared camera (311) start to print the printer (1), wherein the camera (310) can display a printing image, and meanwhile, the infrared camera (311) can display an image printed in an infrared state of the printing image, and images shot by the camera (310) and the camera (310) can be displayed in the display panel (22) in real time, so that a molten pool state can be obtained in a printing process, and the size, the shape, the temperature and the change trend of a molten pool and a heat affected zone can be displayed;
s2, starting a motor (32), enabling a first gear (34) and a second gear (35) at the output end of the motor (32) to be meshed and rotated, enabling a sliding block (36) on the surface of a screw rod (33) to lift, enabling a camera (310) and an infrared camera (311) to follow movement along with the change of printing height, and enabling images to be displayed on the upper, middle and lower layers;
s3, in addition before printing, firstly, the micro fan (392) and the heating pipe (393) are started through the power module (394), so that the micro fan (392) starts to heat, hot air generated by heating can be sucked by the rotation of the micro fan (392), and one end of the hot air is blown to lenses of the camera (310) and the infrared camera (311) along with the extension, and the cleaning of the lenses of the camera (310) and the infrared camera (311) is ensured by blowing, so that the shooting is prevented from being influenced by sticky dust, the lenses can be quickly heated by hot air, and the phenomenon that the lenses are fogged due to cold and hot alternation of hot air generated in the printing process is avoided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211004750.7A CN115338435B (en) | 2022-08-22 | 2022-08-22 | Device for acquiring molten pool state in real time in 3D printing process and use method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211004750.7A CN115338435B (en) | 2022-08-22 | 2022-08-22 | Device for acquiring molten pool state in real time in 3D printing process and use method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115338435A CN115338435A (en) | 2022-11-15 |
| CN115338435B true CN115338435B (en) | 2024-03-08 |
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| CN202211004750.7A Active CN115338435B (en) | 2022-08-22 | 2022-08-22 | Device for acquiring molten pool state in real time in 3D printing process and use method |
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| CN114616080A (en) * | 2019-08-23 | 2022-06-10 | 希尔福克斯有限公司 | 3D printing of fully dense and crack-free silicon using selective laser melting/sintering at high temperatures |
| CN114919172A (en) * | 2022-04-19 | 2022-08-19 | 福建工程学院 | Platform for real-time monitoring and defect detection of 3D printer |
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| CN114616080A (en) * | 2019-08-23 | 2022-06-10 | 希尔福克斯有限公司 | 3D printing of fully dense and crack-free silicon using selective laser melting/sintering at high temperatures |
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| CN115338435A (en) | 2022-11-15 |
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