CN207823957U - 3d printing device - Google Patents
3d printing device Download PDFInfo
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- CN207823957U CN207823957U CN201721927863.9U CN201721927863U CN207823957U CN 207823957 U CN207823957 U CN 207823957U CN 201721927863 U CN201721927863 U CN 201721927863U CN 207823957 U CN207823957 U CN 207823957U
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- 238000007639 printing Methods 0.000 title abstract description 45
- 238000010146 3D printing Methods 0.000 claims abstract description 76
- 238000000465 moulding Methods 0.000 claims abstract description 73
- 238000007493 shaping process Methods 0.000 claims abstract description 70
- 239000000843 powder Substances 0.000 claims abstract description 54
- 238000003754 machining Methods 0.000 claims abstract description 22
- 239000000835 fiber Substances 0.000 claims abstract description 19
- 230000007480 spreading Effects 0.000 claims abstract description 15
- 238000003892 spreading Methods 0.000 claims abstract description 15
- 239000013307 optical fiber Substances 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims description 73
- 230000007246 mechanism Effects 0.000 claims description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 29
- 238000010438 heat treatment Methods 0.000 claims description 28
- 239000000463 material Substances 0.000 claims description 20
- 238000009413 insulation Methods 0.000 claims description 12
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- 238000012876 topography Methods 0.000 claims description 6
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- 239000007924 injection Substances 0.000 claims description 4
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- 238000000034 method Methods 0.000 description 37
- 238000000227 grinding Methods 0.000 description 36
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 14
- 239000001301 oxygen Substances 0.000 description 14
- 229910052760 oxygen Inorganic materials 0.000 description 14
- 230000008569 process Effects 0.000 description 13
- 238000005516 engineering process Methods 0.000 description 11
- 239000000498 cooling water Substances 0.000 description 9
- 230000003028 elevating effect Effects 0.000 description 7
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- 238000006073 displacement reaction Methods 0.000 description 3
- 239000011261 inert gas Substances 0.000 description 3
- 241000446313 Lamella Species 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 2
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- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
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- 239000004411 aluminium Substances 0.000 description 1
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
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Abstract
A kind of 3D printing device includes：Forming worktable is arranged in shaping work room；Power spreading device and laser, the laser is optical fiber laser, including set gradually continuous laser seed source and pulse laser seeds source, fiber coupler and fiber amplifier, the continuous laser seed source and pulse laser seeds source output light beam continuous laser or pulse laser are exported after fiber coupler and fiber amplifier；Wherein：The continuous laser is used to scan molding to the forming worktable for being laid with powder, and the pulse laser is used to carry out Precision Machining to printing shaping part edge.The 3D printing device stability is high, and precision is good, at low cost.
Description
Technical field
The utility model is related to a kind of laser 3D printing technologies more particularly to a kind of constituency based on continuous impulse laser to swash
Light melts 3D printing device.
Background technology
Precinct laser fusion (Selective Laser Melting, SLM) technology be in current metal 3D printing technique at
The highest forming method of type precision, SLM technologies are carried out in the babinet with protective atmosphere using high-density laser spot
The quick scanning of X-Y scheme makes molten metal dusty material be frozen into 20 μm -30 μm of thin layer, and successively accumulation is printed
Accurate 3D molded parts are widely used in aerospace, the precision parts of the industries such as biologic medical, implant devices manufacture.To the greatest extent
Pipe SLM printing precision can reach 0.05mm-0.02mm, but be limited by powder size, laser focused spot size, successively printing etc.
Material and technology factor, the dimensional accuracy and surface roughness of SLM technology forming parts still cannot be satisfied high-accuracy zero
The required precision of part.
Pulse laser has the advantages such as high stability, low cost, high-peak power, using this ultrafast pulsed laser device
Brittle, ultra-thin materials are processed, scarfing smooth (1.0 μm of roughness Ra ＜) belongs to cold working without thermal damage, and being that current material is micro- adds
" the subversiveness technology " that work field occurs.However, picosecond solid pulse laser of foreign countries' import at present is expensive, system is multiple
Miscellaneous, stability is poor, can not be applied to the Precision Machining of SLM rapid shapings at all.
Utility model content
In view of this, it is necessary to provide a kind of 3D printing device, printed simultaneously using the continuous or pulse laser of optical-fiber laser
Workpieces processing can meet the requirement of 3D printing system high stability, high-precision, low cost.
The utility model provides a kind of 3D printing device, and the 3D printing device includes：
Forming worktable is arranged in shaping work room；
Power spreading device, for being laid with powder in the forming worktable；
First laser device, the first laser device are optical fiber laser, including the continuous laser seed source that sets gradually and
Pulse laser seeds source, fiber coupler and fiber amplifier, the continuous laser seed source and the output of pulse laser seeds source
Light beam continuous laser or pulse laser are exported after fiber coupler and fiber amplifier；
Laser control module, the laser control module are connect with the first laser device, are swashed for controlling described first
Light device exports continuous laser or pulse laser；
First scanning galvanometer, the continuous laser or pulse that first scanning galvanometer is used to export the first laser device
Laser focuses on the powder being laid on the forming worktable by the first scanning galvanometer, wherein：
The continuous laser is used to scan molding to the powder being laid on the forming worktable, and the pulse swashs
Light is used to carry out Precision Machining to molded part, and the focal range of the pulse laser is 100~500mm.
Preferably, further include camera,
When molding plane by continuous laser scanning, the surface shape of the plane is obtained by the camera
After looks, the pulse laser carries out Precision Machining to the face profile, and is monitored in real time by the camera.
Preferably, further include second laser,
After the completion of the first laser device is to the forming worktable scanning molding for being laid with powder and contour machining, institute
It states second laser and material processing is subtracted to the molding surface progress micro-structure.
Preferably, the second laser is movably set to the forming worktable along orthogonal both direction
Top, the second laser be picosecond or femto-second laser, and the focal range of the second laser be 5~
100mm。
Preferably, further include heat treatment mechanism, the heat treatment mechanism is used to be heat-treated the shaping work room,
The heat treatment mechanism includes the heating element being arranged on the forming worktable, for being preheated to powder, and/or,
The heat treatment mechanism, in the indoor radiation source of the shaping work, is used for the face to the molded part including setting
Final traces are heated.
Preferably, further include temperature control equipment, the temperature control equipment includes cooling body, thermal insulation board, heater
And temperature sensor；
The cooling body includes air cooling mechanism and magnetism servo-electric motor water-cooling, and the air cooling mechanism includes that setting is purified in gas circulation
Gas heat-exchanger on the pipeline of device and with the gas jetting hole, the gas jetting hole is used for first scanning
At least one of galvanometer, the second scanning galvanometer and laser light incident window carry out injection gas cooling；The magnetism servo-electric motor water-cooling includes mutual
There is water cooling entrance and water cooling to export for the cooling duct of connection, the water-cooling channel, and the water-cooling channel be set to it is described
The side wall of shaping work room and the bottom surface of moulding cylinder；
The thermal insulation board is set to the side wall of the shaping work room and the lower section of the moulding cylinder base station, and described
The edge of thermal insulation board is connect with the moulding cylinder base station, forms a confined space, and the heater is set in the confined space；
The temperature sensor, which is set to described in the inner wall of the shaping work room and the direction of the forming worktable, to be added
The surface of hot device.
The utility model additionally provides a kind of 3D printing method, and the 3D printing method includes：
Using power spreading device powder is laid in forming worktable；
It controls the first laser device and sends out continuous laser to the powder scanning being laid on the forming worktable
Molding；And
It controls the first laser device and sends out pulse laser to carry out Precision Machining to the surface profile of molded part.
Preferably, continuous laser is sent out to the powder being laid on the forming worktable in the first laser device
After scanning molding and contour machining form molded part, micro-structure is also carried out to the surface of the molded part by second laser and is subtracted
Material is processed, wherein the second laser is picosecond or femto-second laser that and the focal range of the second laser is
5~100mm.
Preferably, it is accurate to be carried out to the surface profile of molded part to send out pulse laser for the control first laser device
Processing and the second laser carry out carrying out the step of micro-structure subtracts material processing to the surface of the molded part：
When molding plane by continuous laser scanning, the surface shape of the plane is obtained by the camera
Looks carry out Precision Machining to the face profile by the pulse laser, and are carried out to institute by the second laser
The surface progress micro-structure for stating molded part subtracts material processing, and is monitored in real time by the camera.
Preferably, it sends out continuous laser in the control first laser device and is laid on the forming worktable to described
On powder scanning molding the step of before, further include：Process at hot reason, the heat treatment work are carried out to the shaping work room
Sequence includes：
The powder is heated by heating element, and/or,
The face forming track of the molded part is heated in the shaping work indoor radiation source by being arranged.
Compared to the prior art, 3D printing device provided by the utility model is distinguished using the first laser device of high stability
Continuous laser and pulse laser are sent out, molding and finishing can be realized in an only laser, and stability is high, and precision is good, and at
This is relatively low.
Further, 3D printing device provided by the utility model can also obtain the surface shape of molded part by camera
Looks, observation pulse laser processes the molded surface to be formed progress contour machining to continuous laser increasing material in real time and micro-structure adds
The surface topography of work, in this way, printing-forming and finishing can once be realized during increasing material, it is no longer necessary to again to molded part
It is secondary to be ground.
Further, 3D printing device provided by the utility model also scans molding by first laser device and forms molding
After the printable layer of part, micro-structure is carried out to printable layer by second laser and subtracts material processing, is especially suitable for applying with micro- knot
The 3D printing of structure, such as oral devices, Bones and joints, centrum, fine conduits, space flight and aviation device, secondary filter device, micro-structure
The 3D printing in the fields such as reactor.
Moreover, 3D printing device provided by the utility model can carry out hot place by heat treatment mechanism to printout again
Reason, can reduce molded part temperature of laser sintered part and the un-sintered part of laser in printing causes 3D to beat there are difference
Stress existing for workpiece is printed, deformation and crackle are eliminated so that the workpiece printed has better microstructure.
Description of the drawings
Fig. 1 is a kind of structure chart for 3D printing device that the utility model first embodiment provides.
Fig. 2 is a kind of structure chart for 3D printing device that the utility model second embodiment provides.
Fig. 3 is a kind of structure chart for 3D printing device that the utility model third embodiment provides.
Fig. 4 is a kind of structure chart for 3D printing device that the 4th embodiment of the utility model provides.
Fig. 5 is a kind of structure chart for 3D printing device that the 5th embodiment of the utility model provides.
Fig. 6 is the sectional structure chart at A-A in Fig. 5.
Fig. 7 is a kind of structure chart of the moulding cylinder for 3D printing device that the 5th embodiment of the utility model provides.
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 specific implementation mode will further illustrate the utility model in conjunction with above-mentioned attached drawing.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present 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 components 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 set to " another component, it
Can be set up 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, only one
Kind division of logic function, formula that in actual implementation, there may be another division manner.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 the same units
Or device is realized by software or hardware.The first, the second equal words are used to indicate names, and are not offered as any specific
Sequentially.
Unless otherwise defined, all of technologies and scientific terms used here by the article is led with the technology for belonging to the utility model
The normally understood meaning of technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term " and or " used herein includes
Any and all combinations of one or more relevant Listed Items.
Refering to Figure 1, for the 3D printing device 1000 of the utility model embodiment.The 3D printing device 1000 wraps
It includes, shaping work room 1, forming worktable 2, power spreading device 3, gas control system 4, first laser device 5, the first scanning galvanometer
55, laser control module 9.The wherein described shaping work room 1 is close encapsulation chamber, in for the lazy of vacuum or full predetermined concentration
Property gas.Preferably, the oxygen content ＜ 100ppm in the shaping work room 1, to avoid the oxygen to metal powder or molded part
Change damage.The shaping work room 1 is substantially square, it is to be understood that the shape of the shaping work room 1 can also be it
The shape of his any suitable, such as circle etc..
The forming worktable 2 is set 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 that multilayer print structure can be formed.The workbench 22 is generally horizontally disposed.The molding
Cylinder 21 includes moulding cylinder base station 210 and the molding being arranged between the moulding cylinder base station 210 and the workbench 22 lifting
Bar 212.In some embodiments, the moulding cylinder base station 210 can be rectangular or round 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
It moves in the direction of workbench 22.
Powder of the power spreading device 3 for being laid with predetermined thickness on the workbench 22.Implement shown in figure
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 some 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 position shown in figure, as long as the powder can be pushed to and the workbench
22 substantially 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 substantially parallel with the workbench 22 from the side of the shaping work room 1 or top
It sets, then the powder is equably laid with to the workbench 22 by the powdering part 32.The position of the powdering part 32
It installs on the platform substantially 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 powdering cylinder elevating lever 312 in described 310 one end of powdering cylinder base station is set, the powder is set to described
Side of the powdering cylinder base station 310 far 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 some embodiments, the powdering cylinder base station 310 can be rectangular or round 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 to accurately 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
It states in shaping work room 1 and is filled with inert gas.The vacuum extractor 41 to the shaping work room 1 for carrying 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 utility model
3D printing device 1000 be to be carried out in closed argon atmosphere, by the gas circulation purifier 42, can make
Control for Oxygen Content in the shaping work room 1 is in 100ppm or less.
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.The wherein described continuous laser seed source 51 and the pulse laser seeds source 52
It is connected with the fiber coupler 53, for sending out the continuous laser seed source 51 and the pulse laser seeds source 52
The laser gone out is optically coupled.The laser that the fiber amplifier 54 is used to export the fiber coupler 53 is amplified place
Reason meets the laser of predefined parameter condition with output.The wavelength for the continuous laser that wherein 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,
Power suitable 40W-2000W etc. or any other；Spot diameter can be 30 μm, 40 μm, 50 μm, 60 μm, 70 μm, 80 μm, 60 μ
M-70 μm, 50 μm -100 μm, 50 μm -200 μm or any other suitable value.The pulse laser that the first laser device 5 exports
Pulse width be 200ps-1ps, pulse peak power be more than 100KW, spot diameter can be 30 μm, 40 μm, 50 μm, 60 μm,
70μm、80μm、60μm-70μm、50μm-100μm.The focal range of the pulse laser is 100~500mm.In some implementations
In example, beam diameter adjuster can be added in the light path of the first laser device 5, the spot diameter for the laser to output
It is adjusted, so that the spot size of output is more in line with expection.
First scanning galvanometer 55 is put down for the laser reflection that the first laser device 5 exports to be focused on the work
On platform 22, pass through the scanning of first scanning galvanometer 55 so that the laser that the first laser device 5 exports is thrown with predefined paths
It penetrates on the workbench 22, to print preset pattern on the powder bed of the workbench 22.In this implementation
In example, the sweep speed of first scanning galvanometer 55 is 0~10000mm/s, for example, 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 the sweep speed of first scanning galvanometer 55 is also not necessarily limited to the range, can be with
It is any other suitable value, the sweep speed of first scanning galvanometer 55 can suitably be set according to printing specific requirements
It sets.The sweep span of first scanning galvanometer 55 is 40 μm, 45 μm, 50 μm, 55 μm, 60 μm, 65 μm, 70 μm or 40 μm -70
μm or any other suitable distance values, the sweep span of first scanning galvanometer 55 can be carried out according to printing specific requirements
It is appropriately arranged with.
The laser control module 9 is for controlling the first laser device 5, so that the output of the first laser device 5 is full
The laser of sufficient predefined parameter.
The first laser device 5 and first scanning galvanometer 55 are arranged in 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 is provided with laser light incident window 10, the laser
It can be covered by transparent material at entrance window 10, such as transparent glass etc..
The method and step that 3D printing is carried out using the 3D printing device 1000 of present embodiment is as follows：
First, 3 d part is carried out two-dimensional discrete, forms piece layer data by the 3D models for establishing entity workpiece to be generated,
According to the generated molding laser beam scan path of lamella data schema, the laser beam scan path includes the number of plies, every layer of thickness
Degree, every layer of cross section layered data and each layer scan path.
Then, then the shaping work room 1 is passed through into the gas by 41 vacuumize process of the 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 on 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 be specifically arranged according to described every layer of thickness.
Followed by, control the first laser device 5 output continuous laser (1.06 μ of wavelength for meeting subscription parameters condition
M, power 40W-2000W, 30 μm -200 μm of spot diameter), first scanning galvanometer 55 is with preset 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 threedimensional model one layer of cross section.
Then, it then controls the first laser device 5 and exports and meet the picosecond pulsed laser of predefined parameter condition (pulse is wide
Spend 200ps-0.4ps, 30 μm -100 μm of spot diameter, pulse peak power be more than 100KW), first scanning galvanometer 55 with
The pulse laser is projected to the workbench 22 by preset print routine, completes the essence for having generated cross-sectional profiles edge
Close micro Process improves the precision of contour edge.
Then, after completing a thin layer super micro-processing, effect of the workbench 22 in the moulding cylinder elevating lever 212
Decline a thickness of thin layer, then carry out the printing of next layer of threedimensional model cross section, repeats the above steps until generating real
Body workpiece.Each layer of tranverse sectional thickness 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 some embodiments, the Method of printing further includes：In above-mentioned print procedure, institute is detected every predetermined period
The oxygen content in shaping work room 1 is stated, topping up is low to control oxygen content when oxygen content meets or exceeds preset value
In the preset value (such as 100ppm).
In some embodiments, the Method of printing further includes：In above-mentioned print procedure, institute is utilized every predetermined period
It states gas circulation purifier 42 and circularly purifying processing is carried out to the gas in the shaping work room 1.
It is understood that in the embodiment of above-mentioned Method of printing, being each cross section will first be beaten using continuous laser
Print, then carries out Precision Machining with pulse laser.In other embodiments, can also be that two or more cross sections are respectively adopted
Continuous laser prints, and is then finished again to the molded profile including multiple cross section using pulse laser.
It is further illustrated as follows with specifically printing example.
Example 1
3 d part is carried out two-dimensional discrete, forms the piece number of plies by the 3D models that entity component is established using Computer Design
According to it is 20 μm of cross section layered data and each layer scan path program to be generated per layer thickness according to generated layer data.
CoCrMo alloy powders are homogeneously disposed in power spreading device 3, it will be in the power spreading device 3 by the powdering cylinder 31
Powder be delivered to the position substantially concordant with the workbench 22, then it is by the powdering part 32 that the powdering cylinder 31 is defeated
The powder sent is laid with to the workbench 22, and a thin layer is spread on its surface.
3D printing technological parameter, which is arranged, is：Power 45W, sweep speed 250mm/s, 60 μm of spot diameter, 70 μ of sweep span
M, oxygen content ＜ 100ppm in shaping work room 1.
Starting print routine, the first laser device 5 controls output continuous laser by the laser control module 9, according to
The scanner program set carries out the printing of first layer sectional view, and after the completion of first layer printing, it is accurate to wait for that pulse laser carries out
After processing, then proceed by second layer cross section graphic printing.
After completing one layer of printing, under the control of the laser control module 9, the first laser device 5 is by the laser
The control output pulse laser of control module 9, the first layer cross section profile is carried out according to the molded part profile scan program set
Precision Machining, machined parameters are：10 picoseconds of laser pulse width, peak power are more than 100KW, sweep speed 2500mm/s.
Above process cycle carries out, until the printing of all cross sections finishes, obtains accurate printing shaping product.
Each layer of tranverse sectional thickness of the threedimensional model is 20 μm, the molding after continuous/pulsed optical fibre laser processing
Article surface roughness is down to Ra1.0 μm by Ra4.86 μm, part accuracy 0.0045mm.
Example 2
3 d part is carried out two-dimensional discrete, forms the piece number of plies by the 3D models that entity component is established using Computer Design
According to it is 20 μm of cross section layered data and each layer scan path program to be generated per layer thickness according to generated layer data.
Ti conjunction metal powders are homogeneously disposed in power spreading device 3, it will be in the power spreading device 3 by the powdering cylinder 31
Powder is delivered to the position substantially concordant with the workbench 22, then the powdering cylinder 31 is conveyed by the powdering part 32
Powder be laid with to the workbench 22, its surface spread a thin layer.
3D printing technological parameter, which is arranged, is：Power 450W, sweep speed 2500mm/s, 60 μm of spot diameter, sweep span
70 μm, oxygen content ＜ 100ppm in shaping work room 1.
The first laser device 5 controls output continuous laser by the laser control module 9, according to the scanning pass set
Sequence carry out first layer sectional view printing, first layer printing after the completion of, after pulse laser carry out Precision Machining after, then start into
Row second layer cross section graphic printing.
After completing one layer of printing, under the control of the laser control module 9, the first laser device 5 is by the laser
The control output pulse laser of control module 9, the first layer cross section profile is carried out according to the molded part profile scan program set
Precision Machining, machined parameters are：Laser pulse width 10ps, peak power are more than 100KW, sweep speed 3000mm/s.
Above process cycle carries out, until the printing of all cross sections finishes, obtains accurate printing shaping product.
Each layer of tranverse sectional thickness of the threedimensional model is 20 μm, the molding after continuous/pulsed optical fibre laser processing
Article surface roughness is down to Ra1.0 μm by Ra4.86 μm, part accuracy 0.0045mm.
Example 3：
3 d part is carried out two-dimensional discrete, forms the piece number of plies by the 3D models that entity component is established using Computer Design
According to it is 20 μm of cross section layered data and each layer scan path program to be generated per layer thickness according to generated layer data.
Ti alloys/ZrO2 composite powders are homogeneously disposed in power spreading device 3, are filled the powdering by the powdering cylinder 31
It sets the powder in 3 and is delivered to the position substantially concordant with the workbench 22, then by the powdering part 32 the powdering
The powder that cylinder 31 conveys is laid with to the workbench 22, and a thin layer is spread on its surface.
3D printing technological parameter, which is arranged, is：Power 450W, sweep speed 2300mm/s, 60 μm of spot diameter, sweep span
70 μm, oxygen content ＜ 100ppm in shaping work room 1.
The first laser device 5 controls output continuous laser by the laser control module 9, according to the scanning pass set
Sequence carry out first layer sectional view printing, first layer printing after the completion of, after pulse laser carry out Precision Machining after, then start into
Row second layer cross section graphic printing.
After completing one layer of printing, under the control of the laser control module 9, the first laser device 5 is by the laser
The control output pulse laser of control module 9, the first layer cross section profile is carried out according to the molded part profile scan program set
Precision Machining, machined parameters are：Laser pulse width 10ps, peak power are more than 100KW, sweep speed 3000mm/s.
Above process cycle carries out, until the printing of all cross sections finishes, obtains accurate printing shaping product.
Each layer of tranverse sectional thickness of the threedimensional model is 20 μm, the molding after continuous/pulsed optical fibre laser processing
Article surface roughness is down to Ra1.0 μm by Ra4.86 μm, part accuracy 0.0045mm.
The 3D printing device 1000 of the utility model carries out SLM using continuous laser and successively prints, and utilizes pulse laser pair
Molding thin layer profile carries out Precision Machining.Since the beam spot of picosecond pulsed laser small (being smaller than 10 μm) processes scarfing
Smooth (Ra＜1.0 μm), molded part printing precision can be greatly improved, the application range of increasing material manufacturing is expanded.
The surface accurate degree of printing shaping part can be increased substantially to 0.005mm using the 3D printing method of the utility model
~0.01mm or more.And print system is simple, and reliability is high, and stability is good, and molding printing is completed in two beam laser mixed sweeps
And Precision Machining, further expand application of the metal 3D printing in health medical treatment aerospace field.
Fig. 2 is a kind of structure chart for 3D printing device that the utility model second embodiment provides.Described second is real
The main distinction for applying mode and first embodiment is that second embodiment further includes a camera 11.It should be noted that
In the range of the spirit or essential attributes of the utility model, each concrete scheme suitable for first embodiment can also phase
Answer suitable for second embodiment, for the sake of saving space and avoiding repetition, details are not described herein again.
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, the surface topography for capturing molded part.Pass through continuous laser in first laser device
Molding is scanned to the powder being laid on forming worktable 2, is swashed by the pulse of first laser device 5 after completing one layer of increasing material manufacturing
Light carries out laser precision machining to surface of shaped parts profile.In present embodiment, can set that pulse laser processes every time disappears
Except amount, by one or many processing to realize accurate processing.Further, it is molded by continuous laser scanning
Surface, the surface topography of the printout is obtained by the camera 11, especially by second laser to be molded table
When face carries out micro-structure processing, the microscopic appearances such as hole shape, the pitch-row of surface micro-structure can be obtained visual and clearly.Pulse laser
Focal length be 5~100mm, a diameter of 30-100 microns of focal beam spot, spot diameter can be varied as desired in.
In the method for carrying out 3D printing using the 3D printing device 1000 of present embodiment, the first laser is controlled
Device 5 sends out pulse laser to include the step of carrying out Precision Machining to molded part：
When the continuous laser scans molding flat, the surface profile of the molded part is obtained by the camera 11
The surface topography of (i.e. forming face) carries out micro Process to described by the pulse laser at surface profile.
Other steps are identical as the progress of 3D printing device 1000 method of 3D printing provided using first embodiment, this
Place repeats no more.
Fig. 3 is a kind of structure chart for 3D printing device that the utility model third embodiment provides.The third is real
The main distinction for applying mode and first embodiment is that third embodiment further includes second laser 8.It needs to illustrate
It is that in the range of the spirit or essential attributes of the utility model, each concrete scheme suitable for first embodiment also may be used
With suitable for third embodiment, for the sake of saving space and avoiding repetition, details are not described herein again accordingly.
As shown in figure 3, the 3D printing device 1000 further includes the second laser 8 being connect with laser control module 9.It is described
Second laser 8 is set to the top of the forming worktable 2 by the device moved along orthogonal both direction.Molding
Lateral displacement mechanism 84 and length travel mechanism 85 are installed, wherein lateral displacement mechanism 84 and length travel machine in operating room 1
Structure 85 is preferably mutually perpendicular to so that second laser 8 can move in the horizontal plane.In present embodiment, the lateral position
Telephone-moving structure 84 and length travel mechanism 85 are for driving 8 transverse shifting of second laser and longitudinal movement, those skilled in the art
Various ways may be used and realize above-mentioned function, such as guide rail slide block structure, ball screw arrangement etc., the utility model is to this
It is not limited.
The second laser 8 is picosecond or femto-second laser including laser generator 81, focus lamp 82 and second
Scanning galvanometer 83.The laser that laser generator 81 generates after the focusing of line focus mirror 82, passes through the second scanning galvanometer 83 and focuses successively
Laser reflection afterwards focuses on workbench, passes through the scanning of second scanning galvanometer 83 so that laser after focusing with
Predefined paths are incident upon on the workbench 22, to the shaping work in the first laser device 5 to the laying powder
The scanning molding of platform 2, after forming the printable layer of molded part, the second laser 8 carries out micro- knot to the printable layer of the molded part
Structure subtracts material processing.In present embodiment, the focal range of the second laser 8 is 5~100mm, spot diameter can be 8 μm-
It 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, can be processed as several micro-
Rice~tens microns of micro-structure.The second laser 8 carries out subtracting material processing to the surface progress micro-structure of the molded part
When, the surface topography of the plane is obtained by the camera, and monitored in real time by camera 11.
The method and step that 3D printing is carried out using the 3D printing device 1000 of present embodiment is as follows：
First, 3 d part is carried out two-dimensional discrete, forms piece layer data by the 3D models for establishing entity workpiece to be generated,
According to the generated molding laser beam scan path of lamella data schema, the laser beam scan path includes the number of plies, every layer of thickness
Degree, every layer of cross section layered data and each layer scan path.
Then, then the shaping work room 1 is passed through into the gas by 41 vacuumize process of the vacuum extractor
Feeding mechanism 40 is filled with the inert gas of predetermined concentration, so that the oxygen concentration in the shaping work room 1 is less than 100ppm.
Then, the powder of predetermined thickness is laid on 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 be specifically arranged according to described every layer of thickness.
Followed by, control the first laser device 5 output continuous laser (1.06 μ of wavelength for meeting subscription parameters condition
M, power 40W-2000W, 30 μm -200 μm of spot diameter), first scanning galvanometer 55 is with preset 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 threedimensional model one layer of cross section.
Then, it then controls the first laser device 5 and exports and meet the picosecond pulsed laser of predefined parameter condition (pulse is wide
Spend 200ps-0.4ps, 30 μm -100 μm of spot diameter, pulse peak power be more than 100KW), first scanning galvanometer 55 with
The pulse laser is projected to the workbench 22 by preset print routine, completes the essence for having generated cross-sectional profiles edge
Close micro Process improves the precision of contour edge.
Then, micro-structure processing is carried out to the workpiece surface of increasing material manufacturing by second laser 8, subtracts material processing to reach
Purpose.The second laser 8 can establish the micro-structures such as groove, through-hole on printable layer, so as to realize in molded part
The isostructural printing of the porous structure in portion or inner passage.
Then, after completing a thin layer super micro-processing, effect of the workbench 22 in the moulding cylinder elevating lever 212
Decline a thickness of thin layer, then carry out the printing of next layer of threedimensional model cross section, repeats the above steps until generating real
Body workpiece.Each layer of tranverse sectional thickness 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 some embodiments, the Method of printing further includes：In above-mentioned print procedure, institute is detected every predetermined period
The oxygen content in shaping work room 1 is stated, topping up is low to control oxygen content when oxygen content meets or exceeds preset value
In the preset value (such as 100ppm).
In some embodiments, the Method of printing further includes：In above-mentioned print procedure, institute is utilized every predetermined period
It states gas circulation purifier 42 and circularly purifying processing is carried out to the gas in the shaping work room 1.
It is understood that in the embodiment of above-mentioned Method of printing, being each cross section will first be beaten using continuous laser
Print, then carries out Precision Machining with pulse laser.In other embodiments, can also be that two or more cross sections are respectively adopted
Continuous laser prints, and is then finished again to the molded profile including multiple cross section using pulse laser.
The 3D printing device 1000 that present embodiment provides is in addition to the 3D printing device that is provided with first embodiment
Technique effect also, after can also forming the printable layer of molded part by the scanning molding of first laser device 5, passes through second laser 8
Micro-structure is carried out to printable layer and subtracts material processing, is especially suitable for applying and be closed in the 3D printing with micro-structure, such as oral devices, bone
The 3D printing in the fields such as section, centrum, fine conduits, space flight and aviation device, secondary filter device, micro-structured reactor.
Fig. 4 is a kind of structure chart for 3D printing device that the 4th embodiment of the utility model provides.Described the 4th is real
The main distinction for applying mode and third embodiment is that the 4th embodiment further includes heat treatment mechanism device.It needs to illustrate
It is that in the range of the spirit or essential attributes of the utility model, each concrete scheme suitable for third embodiment also may be used
With suitable for the 4th embodiment, for the sake of saving space and avoiding repetition, details are not described herein again accordingly.
As shown in figure 4, the 3D printing device 1000 further includes heat treatment mechanism, the heat treatment mechanism be used for it is described at
Type operating room 1 is heat-treated.There are certain differences for the temperature of laser sintered part and the un-sintered part of laser when due to printing
Not, and then cause 3D printing workpiece there are certain stress, and the interior microscopic tissue of printout is not up to most perfect or has
Therefore certain defect to reduce above-mentioned stress, and obtains the product of more preferably microstructure, it can be achieved that whole in 3D printing
A shaping work room 1 is heat-treated, and the pre-heat treatment is especially carried out.Heat treatment mechanism can be that various ways are realized, as follows
It is two kinds of possible realization methods：
1) heat treatment mechanism includes the heating element being arranged on the forming worktable 2, for being carried out to powder
Preheating preheats powder or is heated by being set to base station, the heating element on substrate.
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 out is heated.Radiation source 6 be range-controllable light source, such as it is infrared,
Semiconductor laser etc. heats subregion (size of its radiation areas can be adjusted by control irradiation hot spot)
Or preheating, fast heating and cooling can also be done, for example, when passing through radiation mode, laser is transported when increasing material printing by analysis
Capable track can control infrared grade to be preheated on the face final traces of molded part, solution treated.
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 out to the powder being laid on the forming worktable 2 controlling the first laser device 5
Before the step of scanning molding, further include：Process at hot reason is carried out to the shaping work room 1, the heat treatment procedure includes：
The powder is heated by heating element, and/or,
By the way that the continuous laser sent out to the first laser device 5 in the indoor radiation source 6 of the shaping work is arranged
The running orbit (i.e. the face final traces of molded part) of hot spot is heated.
Other steps are identical as the 3D printing method that first embodiment provides, and details are not described herein again.
Technology of the 3D printing device that present embodiment provides in addition to the 3D printing device provided with third embodiment
Outside effect, also printout is heat-treated by heat treatment mechanism, molded part laser sintered part in printing can be reduced
Lead to stress existing for 3D printing workpiece there are difference with the temperature of the un-sintered part of laser so that the workpiece printed has
Better microstructure.
Fig. 5 is a kind of structure chart for 3D printing device that the 5th embodiment of the utility model provides.Described the 5th is real
The main distinction for applying mode and the 4th embodiment is that the 5th embodiment further includes temperature-adjusting device.It needs to illustrate
It is that in the range of the spirit or essential attributes of the utility model, each concrete scheme suitable for the 4th embodiment also may be used
With suitable for the 5th embodiment, for the sake of saving space and avoiding repetition, details are not described herein again accordingly.
As shown in figure 5, due to 1 temperature of shaping work room it is excessively high 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 the gas heat-exchanger 43 and gas jetting hole being arranged on the pipeline of gas circulation purifier 42
66, cooled down to the gas of suction by heat exchanger, later again sprays the gas after cooling through the gas jetting hole 66
Enter to realize the purpose of cooling.Fig. 6 is the sectional structure chart at A-A in Fig. 5.As shown in fig. 6, the gas heat-exchanger 43 includes
One heat exchange grid 431 and cooling water temperature plate 432.The heat exchange grid 431 is that the metals such as copper, aluminium make, and the heat is handed over
It changes grid 431 to be connected to the gas heat-exchanger 43, and the heat exchange grid 431 has several fumaroles, the heat
To exchange the fumarole of grid 431 can quickly open and rapid cleaning, and flue dust is carried with what release export from shaping work room 1
Gas.The cooling water temperature plate 432 is set to the lower section of the heat exchange grid 431, and with the heat exchange grid 431
Contact.The cooling water temperature plate 432 have cooling water inlet and 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, helps the drop rapidly of heat exchange grid 431
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 are separately connected a water-filled radiator, and the coolant liquid 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 liquid 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 set in the side wall of the shaping work room 1,
The coolant liquid of water cooling outlet outflow enters the water-cooling channel after water-filled radiator cooling, through the water cooling entrance
61, after coolant liquid absorbs the heat that the shaping work room 1 is conducted in the water-cooling channel 61, again through water cooling outlet
The water-filled radiator is flowed into, so as to radiate for shaping work room 1.
The air cooling mechanism is equipped with several 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.It is swept first in addition, the gas jetting hole 66 can also be arranged
It retouches and one or more gas jetting holes 66 is respectively set at galvanometer 55, be used for first scanning galvanometer, 55 spray cooling gas
Body helps the cooling of the first scanning galvanometer 55.One or more gas jetting holes 66 can also be set at the second scanning galvanometer 83,
For to second scanning galvanometer, 83 spray cooling gas, helping the cooling of the second scanning galvanometer 83.At laser light incident window
One or more gas jetting hole 66 can also be set, for 10 spray cooling gas of laser light incident window, laser being helped to enter
Penetrate the cooling of window 10.However, those skilled in the art can also be arranged as required to the gas injection of different location and injection direction
Hole 66 is cooled down with being realized to specific parts.
Accurately to control (such as being controlled accordingly according to specific temperature curve) into trip temperature, the temperature
Sensor 62 can be one or more, be set to 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 setting of the thermal insulation board 64 is in 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 which the temperature scald operating personnel for preventing shaping work room 1 excessively high, improves the safety of operating personnel.
Be described below in detail temperature control equipment the moulding cylinder 21 set-up mode.
Fig. 7 is a kind of structure chart of the moulding cylinder 21 for 3D printing device that the 5th embodiment of the utility model provides.Such as
Shown in Fig. 7, the water-cooling channel 61 can be set in the side wall of the moulding cylinder 21, for radiating to moulding cylinder 21.Institute
The coolant liquid of water cooling outlet outflow is stated after water-filled radiator cooling, enters the water-cooling channel through the water cooling entrance
61, after coolant liquid absorbs the heat that the moulding cylinder 21 conducts in the water-cooling channel 61, flowed again through water cooling outlet
Enter the water-filled radiator, so as to radiate for moulding cylinder 21.
Accurately to control (such as being controlled accordingly according to specific temperature curve) into trip temperature, the temperature
Sensor 62 can be arranged the bottom of the moulding cylinder base station 210 in the moulding cylinder 21, and quantity can be one or more
It is a, the temperature for detecting the moulding cylinder base station 210, to adjust the temperature of moulding cylinder base station 210 in real time.The heater 63
It is set to the lower section of the moulding cylinder base station 210, for being heated to the moulding cylinder base station 210.The setting of the thermal insulation board 64 exists
The lower section of the moulding cylinder base station 210, and 64 edge of the thermal insulation board is connect with the moulding cylinder base station 210, thus with institute
It states moulding cylinder base station 210 and forms 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 several water-cooling channels 61 in the water cooling protection board 65, in the water cooling protection board 65
Water-cooling channel 61 be connected to the water-cooling channel 61 in 1 side wall of shaping work room, for radiating to moulding cylinder 21.
Technology of the 3D printing device that present embodiment provides in addition to the 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 is controlled by thermoregulation mechanism, it can be to avoid
To reduce, temperature is excessively high to damage printing equipment.
In addition, for those of ordinary skill in the art, it can be made with technical concept according to the present utility model
Its various corresponding change and deformation, and all these changes and deformation should all belong to the protection model of the utility model claims
It encloses.
Claims (10)
1. a kind of 3D printing device, which is characterized in that the 3D printing device includes：
Forming worktable is arranged in shaping work room；
Power spreading device, for being laid with powder in the forming worktable；
First laser device, the first laser device are optical fiber laser, including the continuous laser seed source set gradually and pulse
Laser seed source, fiber coupler and fiber amplifier, the light of the continuous laser seed source and the output of pulse laser seeds source
Beam exports continuous laser or pulse laser after fiber coupler and fiber amplifier；
Laser control module, the laser control module are connect with the first laser device, for controlling the first laser device
Export continuous laser or pulse laser；
First scanning galvanometer, the continuous laser or pulse laser that first scanning galvanometer is used to export the first laser device
The powder being laid on the forming worktable is focused on by the first scanning galvanometer, wherein：
The continuous laser is used to scan molding to the powder being laid on the forming worktable, and the pulse laser is used
In carrying out Precision Machining to molded part, the focal range of the pulse laser is 100~500mm.
2. 3D printing device as described in claim 1, which is characterized in that further include camera,
When molding plane by continuous laser scanning, the surface topography of the plane is obtained by the camera
Afterwards, the pulse laser is processed the face profile, and is monitored in real time by the camera.
3. 3D printing device as described in claim 1, which is characterized in that further include second laser, in the first laser
After the completion of device is to the forming worktable scanning molding for being laid with powder and contour machining, the second laser is to the molding
Surface carry out micro-structure subtract material processing.
4. 3D printing device as claimed in claim 3, which is characterized in that the second laser is along orthogonal two sides
To the top for being movably set to the forming worktable, the second laser is picosecond or femto-second laser and institute
The focal range for stating second laser is 5~100mm.
5. 3D printing device as described in claim 1, which is characterized in that further include heat treatment mechanism, the heat treatment mechanism
For being heat-treated to the shaping work room, the heat treatment mechanism includes the heating being arranged on the forming worktable
Element, for being preheated to powder.
6. 3D printing device as claimed in claim 5, which is characterized in that the heat treatment mechanism further include setting it is described at
The indoor radiation source of type work, is heated for the face final traces to the molded part.
7. 3D printing device as claimed in claim 6, which is characterized in that further include temperature control equipment, the temperature control
Device includes cooling body, thermal insulation board, heater and temperature sensor.
8. 3D printing device as claimed in claim 7, which is characterized in that the cooling body includes air cooling mechanism and water cooling unit
Structure, the air cooling mechanism include the gas heat-exchanger being arranged on the pipeline of gas circulation purifier and are sprayed with the gas
Perforation, the gas jetting hole are used for at least one of first scanning galvanometer, the second scanning galvanometer and laser light incident window
Carry out injection gas cooling；The magnetism servo-electric motor water-cooling includes interconnected cooling duct, and the water-cooling channel has water cooling entrance
It is exported with water cooling, and the water-cooling channel is set to the bottom surface of the side wall and moulding cylinder of the shaping work room.
9. 3D printing device as claimed in claim 8, which is characterized in that the thermal insulation board is set to the side of the shaping work room
The lower section of wall and the moulding cylinder base station, and the edge of the thermal insulation board is connect with the moulding cylinder base station, and it is close to form one
Space is closed, the heater is set in the confined space.
10. 3D printing device as claimed in claim 9, which is characterized in that the temperature sensor is set to the shaping work
The surface of the direction of the inner wall of room and the forming worktable heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721927863.9U CN207823957U (en) | 2017-12-29 | 2017-12-29 | 3d printing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721927863.9U CN207823957U (en) | 2017-12-29 | 2017-12-29 | 3d printing device |
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| Publication Number | Publication Date |
|---|---|
| CN207823957U true CN207823957U (en) | 2018-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
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| CN (1) | CN207823957U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108015281A (en) * | 2017-12-29 | 2018-05-11 | 广东汉邦激光科技有限公司 | 3D printing device and its Method of printing |
| CN112139506A (en) * | 2019-06-28 | 2020-12-29 | 广东汉邦激光科技有限公司 | Composite workpiece forming device and composite workpiece forming method |
| CN115213429A (en) * | 2021-03-30 | 2022-10-21 | 广东汉邦激光科技有限公司 | Three-dimensional forming equipment and forming method for tubular stent |
-
2017
- 2017-12-29 CN CN201721927863.9U patent/CN207823957U/en not_active Ceased
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108015281A (en) * | 2017-12-29 | 2018-05-11 | 广东汉邦激光科技有限公司 | 3D printing device and its Method of printing |
| CN112139506A (en) * | 2019-06-28 | 2020-12-29 | 广东汉邦激光科技有限公司 | Composite workpiece forming device and composite workpiece forming method |
| CN115213429A (en) * | 2021-03-30 | 2022-10-21 | 广东汉邦激光科技有限公司 | Three-dimensional forming equipment and forming method for tubular stent |
| CN115213429B (en) * | 2021-03-30 | 2024-04-16 | 广东汉邦激光科技有限公司 | Three-dimensional forming equipment and forming method for tubular support |
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