CN108015280A - The 3D printing device and Method of printing of oral devices - Google Patents
The 3D printing device and Method of printing of oral devices Download PDFInfo
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- CN108015280A CN108015280A CN201711483568.3A CN201711483568A CN108015280A CN 108015280 A CN108015280 A CN 108015280A CN 201711483568 A CN201711483568 A CN 201711483568A CN 108015280 A CN108015280 A CN 108015280A
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- oral devices
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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
- B22F12/10—Auxiliary heating means
- B22F12/17—Auxiliary heating means to heat the build chamber or platform
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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
-
- 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
- B22F10/364—Process control of energy beam parameters for post-heating, e.g. remelting
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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
- B22F12/10—Auxiliary heating means
- B22F12/13—Auxiliary heating means to preheat the material
-
- 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
- B22F12/40—Radiation means
- B22F12/41—Radiation means characterised by the type, e.g. laser or electron beam
- B22F12/43—Radiation means characterised by the type, e.g. laser or electron beam pulsed; frequency modulated
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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
- B22F12/40—Radiation means
- B22F12/44—Radiation means characterised by the configuration of the radiation means
- B22F12/45—Two or more
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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
- B22F12/40—Radiation means
- B22F12/46—Radiation means with translatory movement
- B22F12/47—Radiation means with translatory movement parallel to the deposition plane
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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
- B22F12/40—Radiation means
- B22F12/49—Scanners
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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
- 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
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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
-
- 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
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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
- B22F10/70—Recycling
- B22F10/77—Recycling of gas
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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
- B22F12/20—Cooling means
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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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- 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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Abstract
The 3D printing device and its Method of printing of a kind of oral devices, the 3D printing device includes forming worktable, power spreading device, first laser module, second laser module and laser control module, wherein, the laser control module controls the first laser module output continuous laser scanning to be molded the printable layer for forming oral devices, after exporting pulse laser progress Precision Machining, the second laser module carries out micro-structure to the printable layer of the oral devices and subtracts material processing.The 3D printing device and Method of printing of oral devices provided by the invention send continuous laser and pulse laser respectively using the optical fiber laser first laser device of high stability, it is molded by first laser device scanning after forming the printable layer of oral devices and carrying out Precision Machining, micro-structure is carried out to printable layer by second laser and subtracts material processing, no longer need to carry out follow-up grinding process to the oral devices of 3D printing, printing shaping, has precision high and simplifies production process.
Description
Technical field
The present invention relates to a kind of laser 3D printing technology, more particularly to a kind of 3D printing device for oral devices and its
Method of printing.
Background technology
Precinct laser fusion (Selective Laser Melting, SLM) technology be in current metal 3D printing technique into
The highest forming method of type precision, SLM technologies are to be carried out using high-density laser spot in the babinet with protective atmosphere
The quick scanning of X-Y scheme, the thin layer for making molten metal dusty material be frozen into 20 μm -30 μm, and successively accumulation is printed
Accurate 3D molded parts, are widely used in precision parts, the implant devices manufacture of the industries such as aerospace, biologic medical.Arteries and veins
First laser device is rushed with advantages such as high stability, low cost, high-peak powers, is processed using this ultrafast pulsed laser device crisp
Firmly, ultra-thin materials, scarfing smooth (1.0 μm of roughness Ra ＜) belong to cold working, are current material micro Process fields without fire damage
" the subversiveness technology " occurred.However, picosecond solid pulse laser of foreign countries' import at present is expensive, system complex, surely
Qualitative difference, can not be applied to the Precision Machining of SLM rapid shapings at all.
Although SLM printing precision can reach 0.05mm-0.02mm, powder size is limited by, laser focused spot size,
Successively material and technology factor, the dimensional accuracy and surface roughness of SLM technology forming parts such as printing still can not meet
The required precision of high-accuracy parts.Especially oral devices are also needed to progress following process processing could meet accurate fitting people
The high-precision requirement of body.
The content of the invention
In view of this, it is necessary to the 3D printing device and its Method of printing of a kind of oral devices are provided, can meet oral cavity device
The high-precision requirement of part.
Present invention firstly provides a kind of 3D printing device of oral devices, the 3D printing device bag of the oral devices
Include：
Forming worktable, is arranged in shaping work room；
Power spreading device, for being laid with powder in the forming worktable；
First laser module, including first laser device and the first scanning galvanometer, the first laser device include setting gradually
Continuous laser seed source and pulse laser seeds source, fiber coupler and fiber amplifier, the continuous laser seed source and
The light beam of pulse laser seeds source output exports continuous laser or pulse laser after fiber coupler and fiber amplifier；Institute
Continuous laser or pulse laser of first scanning galvanometer for the first laser device to be exported is stated by the first scanning galvanometer to gather
The burnt powder on the forming worktable is laid on；
Second laser module, including second laser and moving mechanism, the moving mechanism are arranged at the shaping work
The top of platform, the second laser are connected to the moving mechanism, and the moving mechanism drives the second laser one
Transversely or vertically moved in horizontal plane；
Laser control module, is connected with the first laser module and second laser module respectively, for controlling described
One laser exports continuous laser and forms oral devices to the powder scanning shaping being laid on the forming worktable
Printable layer, and control the first laser device to export after the pulse laser carries out Precision Machining to the printable layer, it is described
Second laser carries out the printable layers of the oral devices micro-structure and subtracts material processing, is formed more with preset hole shape and aperture
Pore structure body.
Further, camera is further included,
When molding plane by continuous laser scanning, the surface shape of the plane is obtained by the camera
Looks, and, obtain the pulse laser and Precision Machining and the second laser are carried out to the face profile of the oral devices
Printable layer progress micro-structure to the oral devices subtracts the surface state of material processing.
Further, the second laser along orthogonal both direction by being movably arranged at the shaping work
The top of platform.
Further, the second laser for picosecond or femto-second laser, and the focal length model of the second laser
Enclose for 5~100mm.
Further, heat treatment mechanism is further included, and the heat treatment mechanism is used to the shaping work room is carried out at preheating
Reason.
Further, the heat treatment mechanism includes the heating element being arranged on the forming worktable, for powder
Preheated, and/or,
The heat treatment mechanism includes being arranged on the indoor radiation source of the shaping work, for the first laser device
The running orbit of the hot spot of the continuous laser sent is heated.
Present invention also offers a kind of 3D printing method of oral devices, the 3D printing method includes：
Using power spreading device powder is laid with forming worktable；
Control the first laser device of the first laser module to export continuous laser and be laid on the shaping work to described
Powder scanning shaping on platform forms the printable layer of oral devices, and controls the first laser device to export the pulse laser
Precision Machining is carried out to the printable layer profile；
Control the second laser to carry out micro-structure to the printable layer of the oral devices and subtract material processing.
Further, it is precision machined to be carried out to the printable layer to send pulse laser for the control first laser device
Step includes：
After plane is molded by continuous laser scanning, the surface shape of the plane is obtained by the camera
Looks, and, obtain the pulse laser and Precision Machining and the second laser are carried out to institute to the plane of the oral devices
The printable layer progress micro-structure for stating oral devices subtracts the surface state after material processing；
Precision Machining is carried out to the printable layer face profile by the pulse laser.
Further, the second laser for picosecond or femto-second laser, and the focal length model of the second laser
Enclose for 5~100mm.
Further, it is laid in the first laser device output continuous laser of the control first laser module to described
Before the step of powder scanning shaping on the forming worktable forms the printable layer of oral devices, further include：To it is described into
Type operating room is carried out at hot reason, and the heat treatment includes：
The powder is heated by heating element, and/or,
The light of the continuous laser sent by being arranged on the indoor radiation source of the shaping work to the first laser device
The running orbit of spot is heated.
Compared to the prior art, the 3D printing device and Method of printing of oral devices provided by the invention use high stability
First laser device send continuous laser and pulse laser respectively, an only laser can realize shaping and finishing, stablize
Property it is high, and cost is relatively low, after forming the printable layer of oral devices by first laser device scanning shaping, passes through second laser pair
Printable layer carries out micro-structure and subtracts material processing, it is no longer necessary to carries out secondary grinding process to the oral devices of 3D printing, once prints
Shaping, printing precision is high, and can do the fully controllable micro-structure of scale topography, and implantation is firm, long lifespan, biocompatibility
It is good.
Further, the 3D printing device of oral devices provided by the invention and its Method of printing can also be obtained by camera
Take the surface topography of oral devices, continuous laser is increased by pulse laser material process the surface profiles of the oral devices to be formed into
Row Precision Machining, meanwhile, it can intuitively observe the second laser and carry out micro-structure to the profiled surface and subtract material adding
Work, forms required microcellular structure.In this way, the Precision Machining by printing face profile, it is no longer necessary to oral devices again
It is secondary to be ground.
Further, the 3D printing device of oral devices provided by the invention and its Method of printing again can be by heat at
The oral devices of air exercise India and China of reason mechanism are heat-treated, and can reduce oral devices laser sintered part and laser in printing
The temperature of un-sintered part causes stress existing for 3D printing workpiece there are difference so that the oral devices printed have more
Good microstructure, by being directly heat-treated after 3D printing to oral devices so that the oral cavity that a 3D printing molds
Device is indeformable, can meet the high-precision size requirement of oral cavity part.
Brief description of the drawings
Fig. 1 is a kind of structure chart of the 3D printing device for oral devices that first embodiment of the invention provides.
Fig. 2 is a kind of structure chart of the 3D printing device for oral devices that second embodiment of the invention provides.
Fig. 3 is a kind of structure chart of the 3D printing device for oral devices that third embodiment of the invention provides.
Fig. 4 is a kind of structure chart of the 3D printing device for oral devices that four embodiment of the invention provides.
Sectional structure chart in Fig. 5 Fig. 4 at A-A.
Fig. 6 is a kind of structure of the moulding cylinder of the 3D printing device for oral devices that four embodiment of the invention provides
Figure.
Main element symbol description
3D printing device 1000
Shaping work room 1
Laser light incident window 10
Camera 11
Forming worktable 2
Moulding cylinder 21
Moulding cylinder base station 210
Moulding cylinder elevating lever 212
Workbench 22
Power spreading device 3
Powdering cylinder 31
Powdering cylinder base station 310
Powdering cylinder elevating lever 312
Powdering part 32
Gas control system 4
Gas supply device 40
Vacuum extractor 41
Gas circulation purifier 42
Gas heat-exchanger 43
Heat exchange grid 431
Cooling water temperature plate 432
First laser device 5
Continuous laser seed source 51
Pulse laser seeds source 52
Fiber coupler 53
Fiber amplifier 54
First scanning galvanometer 55
Radiation source 6
Water-cooling channel 61
Temperature sensor 62
Heater 63
Thermal insulation board 64
Water cooling protection board 65
Gas jetting hole 66
Second laser 8
Laser generator 81
Focus lamp 82
Second scanning galvanometer 83
Lateral displacement mechanism 84
Length travel mechanism 85
Laser control module 9
Following embodiment will combine above-mentioned attached drawing and further illustrate the present invention.
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment, belongs to the scope of protection of the invention.
It should be noted that when component is referred to as " being fixed on " another component, it can be directly on another component
Or there may also be component placed in the middle.When a component is considered as " connection " another component, it can be directly connected to
To another component or it may be simultaneously present component placed in the middle.When a component is considered as " being arranged at " another component, it
Can be set directly on another component or may be simultaneously present component placed in the middle.Term as used herein is " vertical
", " horizontal ", "left", "right" and similar statement for illustrative purposes only.
System embodiment discussed below is only schematical, the division of the module or circuit, is only one
Kind division of logic function, can there is other dividing mode when actually realizing.Furthermore, it is to be understood that one word of " comprising " is not excluded for other lists
Member or step, odd number are not excluded for plural number.The multiple units or device stated in system claims can also be by same units
Or device is realized by software or hardware.The first, the second grade word is used for representing title, and is not offered as any specific
Sequentially.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention
The normally understood implication of technical staff is identical.Term used in the description of the invention herein is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein " and/or " include one or more phases
The arbitrary and all combination of the Listed Items of pass.
Refering to Figure 1, the 3D printing device 1000 of the oral devices for the embodiment of the present invention.The 3D printing device
1000 include, and shaping work room 1, forming worktable 2, power spreading device 3, gas control system 4, first laser module, second swash
Optical module and laser control module 9.Wherein, the oral devices described in present embodiment include but not limited to tooth implant, base station,
Corona, stent (removable denture) etc..
The shaping work room 1 is close encapsulation chamber, is vacuum or the inert gas of full predetermined concentration in it.It is preferred that
Ground, the oxygen content ＜ 100ppm in the shaping work room 1, to avoid the oxidative damage to metal dust or oral devices.Institute
It is substantially square to state shaping work room 1, it is to be understood that the shape of the shaping work room 1 can also be any other suitable
Suitable shape, such as circle etc..
The forming worktable 2 is arranged in the shaping work room 1, the forming worktable 2 include moulding cylinder 21 and
The workbench 22 being arranged on the moulding cylinder 21.The moulding cylinder 21 is used for perpendicular to the direction of the workbench 22
The workbench 22 is pushed, so as to which multilayer print structure can be formed.The workbench 22 is generally horizontally disposed.The shaping
Cylinder 21 includes moulding cylinder base station 210 and the shaping being arranged between the moulding cylinder base station 210 and the workbench 22 lifting
Bar 212.In certain embodiments, the moulding cylinder base station 210 can be square or circular stainless steel plate, the moulding cylinder elevating lever
212 can be piston.The moulding cylinder base station 210 can be approximately perpendicular to described in the driving lower edge of the moulding cylinder elevating lever 212
The direction movement of workbench 22.
The power spreading device 3 is used for the powder that predetermined thickness is laid with the workbench 22.In the implementation shown in Fig. 1
In example, the power spreading device 3 is arranged in the shaping work room 1, including powdering cylinder 31 and powdering part 32.The powdering cylinder 31
For the powder to be pushed to the position substantially concordant with the workbench 22, the powdering part 32 is used for the powder
It is laid with to the workbench 22, in certain embodiments, the powdering part 32 can be scraper or powder-laying roller.It is appreciated that
It is that the powdering cylinder 31 can also be not arranged in the position shown in figure, as long as the powder can be pushed to and the workbench
22 almost parallel positions.For example, the powdering cylinder 31 can be arranged on the side or top of the shaping work room 1,
The powder is correspondingly delivered to the position almost parallel with the workbench 22 from the side of the shaping work room 1 or top
Put, then the powder is equably laid with to the workbench 22 by the powdering part 32.The position of the powdering part 32
Put and be arranged on the platform almost parallel with the workbench 22, position is corresponding with the position of powdering cylinder 31, the powdering
The powder delivery outlet of cylinder 31 is placed exactly near the powdering part 32, in order to which the powdering part 32 will be exported from the powder
The powder of mouth output is laid with to the workbench 22.31 structure of powdering cylinder can be similar to the moulding cylinder 21, including paving
Powder cylinder base station 310 and the powdering cylinder elevating lever 312 for being arranged on described 310 one end of powdering cylinder base station, the powder are arranged at described
Side of the powdering cylinder base station 310 away from the moulding cylinder base station 210.The powdering cylinder base station 310 can be in the powdering cylinder liter
The driving lower edge of drop bar 312 is approximately perpendicular to the direction movement of the workbench, defeated from the powder to push the powder
Outlet output.In certain embodiments, the powdering cylinder base station 310 can be square or circular stainless steel plate, the powdering cylinder liter
It can be piston to drop bar 312.
It is understood that the moulding cylinder 21 and the powdering cylinder 31 can be connected with a control system, with basis
Printing needs accurately to control the height of the workbench 22 and the thickness of the powder.
The gas control system 4 is used to control the gas in the shaping work room 1.The gas control system 4 wraps
Include gas supply device 40, vacuum extractor 41 and gas circulation purifier 42.The gas supply device 40 is used for institute
State in shaping work room 1 and be filled with inert gas.The vacuum extractor 41 is used to the shaping work room 1 is carried out vacuumizing place
Reason.The gas circulation purifier 42 is used to carry out circularly purifying to the gas in the shaping work room 1.The 3D of the present invention
Printing equipment 1000 is carried out in the argon atmosphere of closing, by the gas circulation purifier 42, can be made described
Control for Oxygen Content in shaping work room 1 is in below 100ppm.
The first laser module includes 5 and first scanning galvanometer 55 of first laser device.The first laser device 5 can be
Optical fiber laser, including continuous laser seed source 51, pulse laser seeds source 52, fiber coupler 53 and fiber amplifier 54.
Wherein described continuous laser seed source 51 is connected with the pulse laser seeds source 52 with the fiber coupler 53, is used for
The laser sent to the continuous laser seed source 51 and the pulse laser seeds source 52 is optically coupled.The fiber amplifier
Device 54 is used to be amplified processing to the laser of the fiber coupler 53 output, meets swashing for predefined parameter condition with output
Light.Wherein the wavelength for the continuous laser that the first laser device 5 exports can be 1.01 μm, 1.02 μm, 1.03 μm, 1.04 μm,
1.05 μm, 1.06 μm, 1.01 μm -1.08 μm or any other suitable wavelength；Power can be 40W-50W, 40W-60W, 40W-
70W, 40W-80W, 40W-90W, 40W-100W, 40W-450W, 450W-2000W, 40W-2000W etc. or any other are suitable
Power；Spot diameter can be 30 μm, 40 μm, 50 μm, 60 μm, 70 μm, 80 μm, 60 μm -70 μm, 50 μm -100 μm, 50 μm of -200 μ
Value suitable m or any other.The pulse width for the pulse laser that the first laser device 5 exports is 200ps-1ps, pulse peak
Value power is greater than or equal to 100KW, and spot size can be 30 μm, 40 μm, 50 μm, 60 μm, 70 μm, 80 μm, 60 μm -70 μm, 50 μ
m-100μm.In certain embodiments, beam diameter adjuster can be added in the light path of the first laser device 5, for defeated
The spot size of the laser gone out is adjusted, so that the spot size of output is more in line with expection.First scanning galvanometer
55 are used to the laser reflection that the first laser device 5 exports focusing on the workbench 22, are scanned by described first
The scanning of galvanometer 55 so that the laser that the first laser device 5 exports is incident upon on the workbench 22 with predefined paths, from
And print default pattern on the powder bed of the workbench 22.In the present embodiment, first scanning galvanometer 55
Sweep speed be 0~10000mm/s, such as 200mm/s, 300mm/s, 400mm/s, 500mm/s, 600mm/s, 700mm/s,
800mm/s, 900mm/s, 1000mm/s, 2000mm/s, 3000mm/s, 4000mm/s, 5000mm/s, it is to be understood that institute
The sweep speed for stating the first scanning galvanometer 55 is also not necessarily limited to the scope, can also be any other suitable value, described
The sweep speed of first scanning galvanometer 55 can be appropriately arranged with according to printing specific requirements.First scanning galvanometer 55 is swept
Spacing is retouched as 40 μm, 45 μm, 50 μm, 55 μm, 60 μm, 65 μm, 70 μm or 40 μm -70 μm, or any other suitable spacing
Value, the sweep span of first scanning galvanometer 55 can be appropriately arranged with according to printing specific requirements.
The first laser device 5 and first scanning galvanometer 55 are arranged on the top of the shaping work room 1, described
Correspond on shaping work room 1 at the scanning range of first scanning galvanometer 55 and be provided with laser light incident window 10, the laser
It can be covered at entrance window 10 by transparent material, such as transparent glass etc..
The second laser module includes second laser 8 and moving mechanism.The second laser 8 along mutual by hanging down
Straight both direction mobile device is arranged at the top of the forming worktable 2.The moving mechanism includes being installed on shaping work
Make the lateral displacement mechanism 84 and length travel mechanism 85 in room 1, wherein, lateral displacement mechanism 84 and length travel mechanism 85 are excellent
Choosing is mutually perpendicular to so that second laser 8 can move in the horizontal plane.In present embodiment, the lateral displacement mechanism
84 and length travel mechanism 85 be used to drive 8 transverse shifting of second laser and to vertically move, those skilled in the art can adopt
Above-mentioned function, such as guide rail slide block structure, ball screw arrangement etc. are realized with various ways, the present invention is without limitation.
The second laser 8 for picosecond or femto-second laser, including laser generator 81,82 and second scanning galvanometer of focus lamp
83.The laser that laser generator 81 produces after the focusing of line focus mirror 82, passes through the laser after the second scanning galvanometer 83 focuses on successively
Reflection is focused on workbench, passes through the scanning of second scanning galvanometer 83 so that the laser after focusing is with predefined paths
It is incident upon on the workbench 22, so as to be scanned into the first laser device 5 to the forming worktable 2 of the laying powder
Type, after forming the printable layer of oral devices, the first laser device exports the pulse laser and carries out precision to the printable layer
Processing.Then, printable layer progress micro-structure of the second laser 8 to the oral devices subtracts material processing, and being formed has in advance
Apertured shape and the cell structure in aperture.It is described in second laser 8 subtracts material process to oral devices progress micro-structure
The hole shape of cell structure and aperture are controllable, and those skilled in the art can arbitrarily set the hole shape of preprocessing and with default
The aperture of size.In present embodiment, the focal range of the second laser 8 is 5~100mm, spot diameter can be 8 μm-
10 μm, 8 μm -20 μm, 8 μm -30 μm, 8 μm -40 μm, 10 μm -20 μm, 10 μm -30 μm, 10 μm -40 μm, it can be processed as several micro-
Rice~tens microns of micro-structure.
The laser control module 9 is connected with the first laser module and second laser module respectively, for controlling
First laser module and second laser module are stated, so that the first laser device 5 exports the laser for meeting predefined parameter to institute
State oral devices to carry out after increasing material processing, control the second laser 8 that the oral devices are carried out with micro-structure and subtract material processing.
The method and step that 3D printing is carried out using the 3D printing device 1000 of the oral devices of the present invention is as follows：
First, the 3D models of entity oral devices to be generated are established, 3 d part is subjected to two-dimensional discrete, forms the piece number of plies
According to, according to the molding laser beam scan path of lamella data schema generated, the laser beam scan path include the number of plies, every layer
Thickness, every layer of cross section layered data and each layer scanning pattern.
Then, then the shaping work room 1 is passed through into the gas by 41 vacuumize process of vacuum extractor
Feeding mechanism 40 is filled with the inert gas of predetermined concentration, so that the oxygen content in the shaping work room 1 is less than 100ppm.
Then, the powder of predetermined thickness is laid with the workbench 22 using the power spreading device 3, the powder
Thickness can be 20 μm -30 μm, 20 μm -40 μm, 20 μm -50 μm, 20 μm -60 μm, 20 μm -70 μm, 20 μm -80 μm or any other
Suitable thickness.It is understood that the thickness of the powder can specifically be set according to the thickness every layer described.
Followed by continuous laser (1.06 μ of wavelength for meeting subscription parameters condition for controlling the first laser device 5 to export
M, power 40W-2000W, 30 μm -200 μm of spot diameter), first scanning galvanometer 55 is with default running parameter (scanning speed
Spend 200-5000mm/s, 40 μm -70 μm of sweep span) laser scanning is reflexed into the workbench 22, according to predetermined
Print routine, complete the printing of one layer of cross section of threedimensional model of oral devices, form printable layer.
Then, then control the first laser device 5 to export to meet the picosecond pulsed laser of predefined parameter condition (pulse is wide
200ps-0.4ps, 30 μm -100 μm of spot size are spent, pulse peak power is greater than or equal to 100KW), first scanning is shaken
The pulse laser is projected to the workbench 22 by mirror 55 with default print routine, completes the wheel of printable layer generated
The super micro-processing at wide edge, improves the precision of contour edge.
Then, micro-structure processing is carried out to the printable layer of oral devices by second laser 8, subtracts material processing to reach
Purpose, forms the cell structure with preset hole shape and aperture.The focal length of second laser 8 can be 5~100mm, counterpart
The printable layer of chamber device carries out subtracting material processing, realizes the regulation and control of the oral devices micro-structure after increasing material printing to 3D, improves 3D
The performance of the oral devices of printing.
Finally, after completing a printable layer super micro-processing, work of the workbench 22 in the moulding cylinder elevating lever 212
With a thickness of thin layer is declined, the printing of next layer of threedimensional model cross section is then carried out, is repeated the above steps until generation
Entity workpiece.The thickness of each layer of printable layer of the threedimensional model can be 20 μm -30 μm, 20 μm -40 μm, 20 μm -50 μm,
20 μm -60 μm, 20 μm -70 μm, 20 μm -80 μm or any other suitable thickness.
In certain embodiments, the Method of printing further includes：In above-mentioned print procedure, institute is detected every scheduled time slot
The oxygen content in shaping work room 1 is stated, topping up is to control oxygen content low when oxygen content meets or exceeds preset value
In the preset value (such as 100ppm).
In certain embodiments, the Method of printing further includes：In above-mentioned print procedure, institute is utilized every scheduled time slot
State gas circulation purifier 42 and circularly purifying processing is carried out to the gas in the shaping work room 1.
It is that each printable layer will first be beaten using continuous laser it is understood that in the embodiment of above-mentioned Method of printing
Print, then carries out Precision Machining with pulse laser.In other embodiments or two or more printable layers are respectively adopted
Continuous laser prints, and then the molded profile including the plurality of cross section is finished using pulse laser again.By
Each printable layer can be carried out in second laser 8 to subtract material processing, in next layer of print procedure, first laser device 5
Do again and increase material processing, thus can easily process the micro-structure of various inside, be more bonded the feature of human oral cavity.
The 3D printing device 1000 and its Method of printing of the present invention carries out SLM using continuous laser and successively prints, and utilizes arteries and veins
Impulse light carries out Precision Machining to molding thin layer profile.Since the beam spot of picosecond pulsed laser is small (being smaller than 10 μm)
It is smooth (1.0 μm of Ra ＜) to process scarfing, printing precision can be greatly improved, expand the application range of increasing material manufacturing.In addition, using this
The 3D printing method of invention can increase substantially the surface accurate degree of printing oral devices to 0.005mm.And print system letter
Single, reliability is high, and stability is good, and shaping printing and Precision Machining are completed in two beam laser mixed sweeps.
Moreover, the 3D printing device and Method of printing of the oral devices that present embodiment provides, can also swash by first
After the scanning shaping of light device 5 forms the printable layer of oral devices, printable layer is carried out by second laser to subtract material processing, is no longer needed
The oral devices of 3D printing are carried out with secondary grinding process, a printing shaping, precision is high, and it is complete to do scale topography
Complete controllable micro-structure, implantation is firm, long lifespan, good biocompatibility.
Fig. 2 is a kind of structure chart of the 3D printing device for oral devices that second embodiment of the invention provides.Described
The main distinction of second embodiment and first embodiment is that second embodiment further includes a camera 11.Need
Bright, in the range of the spirit or essential attributes of the present invention, each concrete scheme suitable for first embodiment also may be used
Suitable for second embodiment, for the sake of saving space and avoiding repetition, just to repeat no more herein accordingly.
As shown in Fig. 2, the 3D printing device 1000 is equipped with camera 11 in shaping work room 1.The camera 11 can be with
It is high-definition camera or high speed scanner, for capturing the surface topography of oral devices.In first laser device by continuously swashing
Light scans shaping to the powder being laid on forming worktable 2, completes one layer and increases after material is processed by the pulse of first laser device 5
Laser, laser precision machining is carried out to the face profile of oral devices.In present embodiment, pulse laser can be set and added every time
The elimination amount of work, accurately processing is realized by repeatedly processing.Further, described second is obtained by the camera 11
Laser carries out the surface topography of printing surface micro-structure processing.During surface micro-fabrication, the focal length of pulse laser is 5~100mm, is gathered
Burnt hot spot is 30-100 micron diameters, can be varied as desired in spot diameter.
Carried out using the 3D printing device 1000 of present embodiment in the method for 3D printing, control the first laser
Device 5 sends pulse laser to include the step of carrying out Precision Machining to oral devices：
When molding plane by continuous laser scanning, the surface of the plane is obtained by the camera 11
Pattern, while the pulse laser can also be obtained by the camera 11 essence is carried out to the face profile of the oral devices
The surface topography of close processing, and obtain the table that second laser 8 carries out the printable layer of the oral devices micro-structure processing
Face pattern.
The method that other steps carry out 3D printing with the 3D printing device 1000 provided using first embodiment is identical, this
Place repeats no more.
Fig. 3 is a kind of structure chart of the 3D printing device for oral devices that third embodiment of the invention provides.Described
The main distinction of 3rd embodiment and first embodiment is that second embodiment further includes heat treatment mechanism device.Need
Illustrate, in the range of the spirit or essential attributes of the present invention, each concrete scheme suitable for first embodiment
For the sake of saving space and avoiding repetition, can just it be repeated no more herein accordingly suitable for the 3rd embodiment.
As shown in figure 3, the 3D printing device 1000 further includes heat treatment mechanism, the heat treatment mechanism be used for it is described into
Type operating room 1 carries out the pre-heat treatment.The temperature of laser sintered part and the un-sintered part of laser exists necessarily during due to printing
Difference, cause 3D printing workpiece there are certain stress, and the interior microscopic tissue of the printing workpiece printed does not reach
To most perfect or have certain defect, therefore, to reduce above-mentioned stress, and obtain more preferably microstructure product, it can be achieved that
Whole shaping work room 1 is heat-treated in 3D printing, particularly carries out the pre-heat treatment.Heat treatment mechanism can be a variety of sides
Formula is realized, is two kinds of possible implementations as follows：
1) heat treatment mechanism includes the heating element being arranged on the forming worktable 2, for being carried out to powder
Preheating, by being arranged at base station, the heating element on substrate, preheats powder or is heated.
2) heat treatment mechanism includes the radiation source 6 being arranged in the shaping work room 1, for swashing to described first
The running orbit of the hot spot for the continuous laser that light device 5 is sent is heated.Radiation source 6 be range-controllable light source, such as it is infrared,
Semiconductor laser etc. heats subregion (the big I of its radiation areas is by controlling irradiation hot spot to be adjusted)
Or preheating, fast heating and cooling can also be done, for example, when passing through radiation mode, increases laser fortune when material prints by analyzing
Capable track, can control infrared grade to be preheated on running orbit, admittedly molten, ageing treatment.
The method and step that 3D printing is carried out using the 3D printing device 1000 of present embodiment is as follows：
Continuous laser is sent to the powder being laid on the forming worktable 2 controlling the first laser device 5
Before the step of scanning shaping, further include：Process at hot reason is carried out to the shaping work room 1, the heat treatment step includes：
The powder is heated by heating element, and/or,
The continuous laser sent by being arranged on the indoor radiation source 6 of the shaping work to the first laser device 5
The running orbit of hot spot is heated.
Other steps are identical with the 3D printing method that first embodiment provides, and details are not described herein again.
The 3D printing device that present embodiment provides is except the technology of 3D printing device provided with second embodiment
Outside effect, also oral devices are heat-treated by heat treatment mechanism, it is laser sintered in printing that oral devices can be reduced
The temperature of part and the un-sintered part of laser causes stress existing for 3D printing workpiece there are difference so that the workpiece printed
With more preferable microstructure.
Fig. 4 is a kind of structure chart of the 3D printing device for oral devices that four embodiment of the invention provides.Described
The main distinction of 4th embodiment and first embodiment is that the 4th embodiment further includes temperature-adjusting device.Need
Illustrate, in the range of the spirit or essential attributes of the present invention, each concrete scheme suitable for first embodiment
For the sake of saving space and avoiding repetition, can just it be repeated no more herein accordingly suitable for the 4th embodiment.
As shown in figure 4, due to 1 temperature of shaping work room it is excessive in the case of be likely to result in the damage of 3D printing device 1000
Harmful, in present embodiment, which further includes temperature control equipment, and the temperature control equipment includes cooler
Structure, thermal insulation board 64, heater 63 and temperature sensor 62.Wherein, the cooling body includes air cooling mechanism and magnetism servo-electric motor water-cooling,
The air cooling mechanism includes gas heat-exchanger 43 and the gas jetting hole being arranged on the pipeline of gas circulation purifier 42
66, cooled down by heat exchanger to the gas of suction, afterwards again spray the gas after cooling through the gas jetting hole 66
Enter to realize the purpose of cooling.Fig. 5 is the sectional structure chart at A-A in Fig. 4.As shown in figure 5, the gas heat-exchanger 43 includes
One heat exchange grid 431 and cooling water temperature plate 432.The heat exchange grid 431 makes for metals such as copper, aluminium, and the heat is handed over
Change grid 431 to connect with the gas heat-exchanger 43, and the heat exchange grid 431 has some fumaroles, the heat
To exchange the fumarole of grid 431 can quickly open and rapid cleaning, with discharge from shaping work room 1 export with flue dust
Gas.The cooling water temperature plate 432 is arranged at the lower section of the heat exchange grid 431, and with the heat exchange grid 431
Contact.The cooling water temperature plate 432 has cooling water inlet and a cooling water outlet, cooling water from the cooling water inlet into
Enter, flowed out from the cooling water outlet, to take away the heat of the heat exchange grid 431, help heat exchange grid 431 to drop rapidly
The temperature of the low heat exchange grid 431.
The magnetism servo-electric motor water-cooling includes interconnected cooling duct 61, and the water-cooling channel 61 has water cooling entrance and water cooling
Outlet, the water cooling entrance and water cooling outlet connect a water-filled radiator respectively, and the coolant of water cooling outlet outflow is through institute
After stating water-filled radiator cooling, enter the water-cooling channel 61 through the water cooling entrance, coolant is in the water-cooling channel 61
After absorbing heat, the water-filled radiator is again flowed into through water cooling outlet.
The temperature control equipment can be arranged at shaping work room 1 and moulding cylinder 21.Temperature control is described below in detail
Set-up mode of the device processed in the shaping work room 1.
In present embodiment, the cooling duct of the magnetism servo-electric motor water-cooling can be arranged in the side wall of the shaping work room 1,
The coolant of water cooling outlet outflow enters the water-cooling channel after water-filled radiator cooling through the water cooling entrance
61, after coolant absorbs the heat that the shaping work room 1 is conducted in the water-cooling channel 61, through water cooling outlet again
The water-filled radiator is flowed into, so as to radiate for shaping work room 1.
The air cooling mechanism is equipped with some gas jetting holes 66 in shaping work room 1, will through the gas jetting hole 66
Gas after cooling, which sprays into, realizes cooling in shaping work room 1.Swept in addition, the gas jetting hole 66 can also be arranged on first
Retouch and one or more gas jetting holes 66 are set respectively at galvanometer 55, for the 55 spray cooling gas of the first scanning galvanometer
Body, helps the first scanning galvanometer 55 to cool down.One or more gas jetting holes 66 can also be set at the second scanning galvanometer 83,
For to the 83 spray cooling gas of the second scanning galvanometer, helping the second scanning galvanometer 83 to cool down.At laser light incident wound window
One or more gas jetting hole 66 can also be set,.For to 10 spray cooling gas of laser light incident window, helping laser to enter
Window 10 is penetrated to cool down.However, those skilled in the art can also be arranged as required to the gas injection of diverse location and injection direction
Hole 66, is cooled down with being realized to specific parts.
Accurately to carry out temperature control (such as being controlled accordingly according to specific temperature curve), the temperature
Sensor 62 can be one or more, be arranged at the inner wall of the shaping work room 1, for the shaping work room 1
Interior temperature is detected to adjust the heating power of the heating element or the radiation source 6.
The thermal insulation board 64 is arranged on 1 side wall of shaping work room, for preventing external heat to be passed to shaping work room 1
It is interior, it is also possible to prevent the excessive temperature scald operating personnel in shaping work room 1, improve the security of operating personnel.
Set-up mode of the temperature control equipment in the moulding cylinder 21 is described below in detail.
Fig. 6 is a kind of structure of the moulding cylinder 21 of the 3D printing device for oral devices that four embodiment of the invention provides
Figure.As shown in fig. 6, the water-cooling channel 61 can be arranged in the side wall of the moulding cylinder 21, for being dissipated to moulding cylinder 21
Heat.The coolant of water cooling outlet outflow enters the water cooling after water-filled radiator cooling through the water cooling entrance
Passage 61, after coolant absorbs the heat that the moulding cylinder 21 conducts in the water-cooling channel 61, through water cooling outlet again
It is secondary to flow into the water-filled radiator, so as to radiate for moulding cylinder 21.
Accurately to carry out temperature control (such as being controlled accordingly according to specific temperature curve), the temperature
Sensor 62 can be arranged on the bottom of the moulding cylinder base station 210 in the moulding cylinder 21, its quantity can be one or more
It is a, for detecting the temperature of the moulding cylinder base station 210, to adjust the temperature of moulding cylinder base station 210 in real time.The heater 63
The lower section of the moulding cylinder base station 210 is arranged at, for being heated to the moulding cylinder base station 210.The thermal insulation board 64 is arranged on
The lower section of the moulding cylinder base station 210, and 64 edge of the thermal insulation board is connected with the moulding cylinder base station 210, thus with institute
State moulding cylinder base station 210 and form a confined space, the heater 63 is located in the confined space.The lower section of the thermal insulation board 64
It is additionally provided with a water cooling protection board 65, is equipped with some water-cooling channels 61 in the water cooling protection board 65, in the water cooling protection board 65
Water-cooling channel 61 connected with the water-cooling channel 61 in 1 side wall of shaping work room, for radiating to moulding cylinder 21.
The 3D printing device that present embodiment provides is except the technology of 3D printing device provided with the 4th embodiment
Outside effect, also the temperature of shaping work room 1 and moulding cylinder 21 is adjusted and controlled by thermoregulation mechanism, can be to avoid
To reduce, temperature is excessive to be caused to damage to printing equipment.
In addition, for those of ordinary skill in the art, it can be made with technique according to the invention design other each
It is kind corresponding to change and deformation, and all these changes and deformation should all belong to the protection domain of the claims in the present invention.
Claims (10)
1. the 3D printing device of a kind of oral devices, it is characterised in that the 3D printing device of the oral devices includes：
Forming worktable, is arranged in shaping work room；
Power spreading device, for being laid with powder in the forming worktable；
First laser module, including first laser device and the first scanning galvanometer, the first laser device include the company set gradually
Continuous laser seed source and pulse laser seeds source, fiber coupler and fiber amplifier, the continuous laser seed source and pulse
The light beam of laser seed source output exports continuous laser or pulse laser after fiber coupler and fiber amplifier；Described
One scan galvanometer is used for the continuous laser for exporting the first laser device or pulse laser is focused on by the first scanning galvanometer
The powder being laid on the forming worktable；
Second laser module, including second laser and moving mechanism, the moving mechanism are arranged at the forming worktable
Top, the second laser are connected to the moving mechanism, and the moving mechanism drives the second laser horizontal one
Transversely or vertically moved in face；
Laser control module, is connected with the first laser module and second laser module respectively, for controlling described first to swash
Light device exports the printing that continuous laser forms the powder scanning shaping being laid on the forming worktable oral devices
Layer, and control the first laser device to export after the pulse laser carries out Precision Machining to the printable layer, described second
Laser carries out micro-structure to the printable layer of the oral devices and subtracts material processing, forms the porous knot with preset hole shape and aperture
Structure body.
2. 3D printing device as claimed in claim 1, it is characterised in that further include camera, passing through the continuous laser
When scanning molds plane, the surface topography of the plane is obtained by the camera, and, obtain the pulse laser pair
The face profile of the oral devices is processed carries out micro- knot with the second laser to the printable layer of the oral devices
Structure subtracts the surface state after material processing.
3. 3D printing device as claimed in claim 1, it is characterised in that the second laser is along orthogonal two sides
To the top for being movably arranged at the forming worktable.
4. 3D printing device as claimed in claim 3, it is characterised in that the second laser for picosecond or femtosecond laser
Device, and the focal range of the second laser is 5~100mm.
5. 3D printing device as claimed in claim 1, it is characterised in that further include heat treatment mechanism, the heat treatment mechanism
For carrying out the pre-heat treatment to the shaping work room.
6. 3D printing device as claimed in claim 5, it is characterised in that the heat treatment mechanism includes being arranged on the shaping
Heating element on workbench, for being preheated to powder, and/or,
The heat treatment mechanism includes being arranged on the indoor radiation source of the shaping work, for being sent to the first laser device
The running orbit of hot spot of continuous laser heated.
7. a kind of 3D printing method of oral devices, it is characterised in that the 3D printing method includes：
Using power spreading device powder is laid with forming worktable；
Control the first laser device of the first laser module to export continuous laser to be laid on the forming worktable to described
Powder scanning shaping form the printable layers of oral devices, and control the first laser device to export the pulse laser to institute
State printable layer profile and carry out Precision Machining；
Control the second laser to carry out micro-structure to the printable layer of the oral devices and subtract material processing.
8. the 3D printing method of oral devices as claimed in claim 7, it is characterised in that the control first laser device
Pulse laser is sent to include the step of carrying out Precision Machining to the printable layer profile：It is scanned into by the continuous laser
After type goes out plane, the surface topography of the plane is obtained by the camera, and, the pulse laser is obtained to the mouth
The face profile of chamber device carries out Precision Machining and the second laser and carries out micro-structure to the printable layer of the oral devices
Subtract the surface state of material processing；
Precision Machining is carried out to the printable layer face profile by the pulse laser.
9. the 3D printing method of oral devices as claimed in claim 8, it is characterised in that the second laser for picosecond or
Person's femto-second laser, and the focal range of the second laser is 5~100mm.
10. the 3D printing method of oral devices as claimed in claim 9, it is characterised in that swash in the control described first
The first laser device output continuous laser of optical module forms the powder scanning shaping being laid on the forming worktable
Before the step of printable layer of oral devices, further include：The shaping work room is heat-treated, the heat treatment includes：
The powder is heated by heating element, and/or, by being arranged on the indoor radiation source pair of the shaping work
The running orbit of the hot spot for the continuous laser that the first laser device is sent is heated.
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| CN201711483568.3A CN108015280A (en) | 2017-12-29 | 2017-12-29 | The 3D printing device and Method of printing of oral devices |
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| CN112512735A (en) * | 2018-08-03 | 2021-03-16 | 瑞尼斯豪公司 | Powder bed melting apparatus and method |
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