CN105478767A - Device and method for obtaining metal dental prosthesis through laser 3D printing - Google Patents
Device and method for obtaining metal dental prosthesis through laser 3D printing Download PDFInfo
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- CN105478767A CN105478767A CN201511030533.5A CN201511030533A CN105478767A CN 105478767 A CN105478767 A CN 105478767A CN 201511030533 A CN201511030533 A CN 201511030533A CN 105478767 A CN105478767 A CN 105478767A
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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
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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
- B22F10/30—Process control
- B22F10/36—Process control of energy beam parameters
- B22F10/366—Scanning parameters, e.g. hatch distance or scanning strategy
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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
- B22F12/22—Driving 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
- B22F12/40—Radiation means
- B22F12/44—Radiation means characterised by the configuration of the radiation 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
- B22F12/40—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
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F5/10—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of articles with cavities or holes, not otherwise provided for in the preceding subgroups
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/20—Direct sintering or melting
- B22F10/25—Direct deposition of metal particles, e.g. direct metal deposition [DMD] or laser engineered net shaping [LENS]
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/20—Direct sintering or melting
- B22F10/28—Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
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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
- B22F10/30—Process control
- B22F10/36—Process control of energy beam parameters
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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
- B22F12/41—Radiation means characterised by the type, e.g. laser or electron beam
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The invention discloses a device and method for obtaining a metal dental prosthesis through laser 3D printing. The device comprises a control circuit, a laser unit, an automatic zoom beam expander, a movable concave lens unit, an optical focusing unit and a processing plane used for containing the dental prosthesis. Laser beams emitted from the laser unit sequentially pass the automatic zoom beam expander, the movable concave lens unit and the optical focusing unit to be focused to the dental prosthesis on the processing plane. The control circuit is connected with the automatic zoom beam expander, the movable concave lens unit and the optical focusing unit. By the adoption of the device and method, the light beam expanding multiple is controlled to achieve the effect that the sizes of laser light spots are controlled so that the laser light spots of different sizes can be used for printing different portions of a part, flexible control is achieved, and the printing speed is increased greatly while printing accuracy is guaranteed. The device and method for obtaining the metal dental prosthesis through laser 3D printing can be widely applied to the field of material increase manufacturing.
Description
Technical field
The present invention relates to and increase material manufacture field, especially a kind of metal laser 3D prints dental case apparatus and method.
Background technology
Increase material manufacture and be commonly called as again 3D printing, it is the technology that the method adopting material successively to add up by CAD design data manufactures entity component, removing (machining) technology relative to traditional material, is a kind of manufacture method of " from bottom to top " material addition.Compare traditional manufacturing technology, increase material manufacture have can shaping complicated shape part, formed precision high, save the advantages such as material.
Metal current increases material manufacturing technology and has wide application space at medical domain, and wherein dental prosthesis is the best product of current industrialization.But in print procedure, dental prosthesis exists the bad control of marginal dimension, surface is the problem such as more coarse still.
Adopt laser to be the forming method that current precision is the highest as the increasing material manufacturing technology of thermal source, positioning precision can reach 2 μm.In order to obtain the Laser Processing hot spot of a concentration of energy, the laser beam emitted from laser instrument needs the synergy by beam expanding lens, focus lamp and galvanometer, is the laser facula that a diameter is very little by laser beam focus.
In current laser gain material manufacturing technology, mirror-vibrating laser scanning is a kind of scan mode extensively adopted, and it has the advantages such as high speed, high accuracy, stable performance.But what this laser scanning methods adopted is constant focus method, in process when laser beam guides to the direction away from working range center by scanning galvanometer, distance from camera lens to workpiece adds, cause not focusing at the position laser beam away from workpiece centre, this focusing deviation has had a strong impact on scanning accuracy and crudy.
A lot of very large laser-processing system employing F-θ focus lamp overcomes the pincushion distortion problem in vibration mirror scanning at present, but after adopting F-θ mirror, owing to being subject to the light beam aperture restriction of the restriction of camera lens size and scanning galvanometer, sweep limits is appreciably restricted, and F-θ mirror cost compare is high.
And in order to accelerate the process velocity of personalized dental case part, and improve crudy and the precision of part, need to adopt different laser facula sizes to process to the exterior contour of part and internal entity in laser scanning process, but current laser gain material manufacturing equipment cannot meet this requirement.
Summary of the invention
In order to solve the problems of the technologies described above, the object of the invention is: provide a kind of metal laser 3D to print dental case device, its focal beam spot size is adjustable, is applicable to the printing at different part position, improve performance and the precision of forming part.
In order to solve the problems of the technologies described above, another object of the present invention is: provide a kind of metal laser 3D to print dental case method, its focal beam spot size is adjustable, is applicable to the printing at different part position, improves performance and the precision of forming part.
The technical solution adopted in the present invention is: a kind of metal laser 3D prints dental case device, include control circuit, laser instrument, autozoom beam expanding lens, mobile negative lens unit, optical focusing unit and the processing plane for placing dental case, the laser beam that described laser instrument is launched focuses on the dental case of processing plane by autozoom beam expanding lens, mobile negative lens unit and optical focusing unit successively, and described control circuit is connected with autozoom beam expanding lens, mobile negative lens unit and optical focusing unit respectively.
Further, described mobile negative lens unit includes mobile negative lens, servomotor, fork, slide block and guide rail, described mobile negative lens is fixed on slide block, and described servomotor drives slide block to move on guide rail by fork, and the control end of described servomotor is connected with control circuit.
Further, described guide rail two ends are also provided with guide rail limited block.
Further, described optical focusing unit includes prefocusing mirror, galvanometer and rear focus lamp, and the control end of described galvanometer is connected with control circuit, described laser beam by after prefocusing mirror by vibration mirror reflected to rear focus lamp focusing on the dental case of processing plane.
Further, the control end of described autozoom beam expanding lens is connected with control circuit.
Further, the multiple that freely expands of described autozoom beam expanding lens is 2-8 times.
Further, described laser instrument is optical fiber laser.
Another technical scheme of the present invention is: a kind of metal laser 3D prints dental case method, in each layer operation that 3D prints, includes following steps:
A, increase autozoom beam expanding lens expand multiple, utilize the inside and outside profile of the laser printing dental case after focusing on;
B, reduce autozoom beam expanding lens expand multiple, the entity part between the inside and outside profile utilizing the laser printing dental case after focusing on.
Further, for inside and outside profile in described steps A, utilize the scanning of the laser limes marginis after focusing at least twice respectively.
Further, also regulate laser power in described steps A and step B, the power that laser is applied in inside and outside profile, entity part is identical.
The invention has the beneficial effects as follows: this device controls the effect of laser facula size by reaching the control of beam expander multiple, thus the different parts of the laser facula of different size to part can be utilized to print, realize controlling flexibly, and significantly promote print speed while guarantee printing precision; Meanwhile, the present invention adopts optical focusing device to carry out vernier focusing to laser facula, improves the energy density of laser facula, overcomes the pincushion distortion problem and sweep limits restriction that focus vibration mirror scanning.
Another beneficial effect of the present invention is: this method controls the effect of laser facula size by reaching the control of beam expander multiple, thus the different parts of the laser facula of different size to part can be utilized to print, realize controlling flexibly, and significantly promote print speed while guarantee printing precision.
Accompanying drawing explanation
Fig. 1 is apparatus of the present invention structural representation;
Fig. 2 is the inventive method flow chart of steps;
Fig. 3 is dental case cross-sectional view in the embodiment of the present invention.
In figure: 1, control circuit; 2, laser instrument; 3, autozoom beam expanding lens; 4, mobile negative lens; 5, prefocusing mirror; 6, galvanometer; 7, rear focus lamp; 8, focused laser beam; 9, processing plane; 10, servomotor; 11, fork; 12, slide block; 13, guide rail; 14, guide rail limited block; 15, in-profile; 16, exterior contour; 17, entity part.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further:
With reference to Fig. 1, a kind of metal laser 3D prints dental case device, include control circuit, laser instrument, autozoom beam expanding lens, mobile negative lens unit, optical focusing unit and the processing plane for placing dental case, the laser beam that described laser instrument is launched focuses on the dental case of processing plane by autozoom beam expanding lens, mobile negative lens unit and optical focusing unit successively, and described control circuit is connected with autozoom beam expanding lens, mobile negative lens unit and optical focusing unit respectively.
Control circuit can not only control the deflection of galvanometer and the movement of mobile negative lens in scanning process, realizes the dynamic focusing of scanning process, can also control the multiplication factor of autozoom beam expanding lens, thus changes the size of focal beam spot.
Be further used as preferred embodiment, described mobile negative lens unit includes mobile negative lens, servomotor, fork, slide block and guide rail, described mobile negative lens is fixed on slide block, described servomotor drives slide block to move on guide rail by fork, and the control end of described servomotor is connected with control circuit.
Control circuit gets the tilt value of galvanometer, and the convergence error value calculated is passed to the driver of servomotor, servomotor is driven to drive fork to deflect, the deflection of fork is converted into the rectilinear motion of slide block on guide rail, thus drive mobile negative lens to move linearly in light path, finally achieve the optical focus of laser beam.By the effect of optical focus, substantially increase the sweep limits of laser beam, sweep limits is increased to 250 × 250mm from the 100 × 100mm focusing scanning.
Larger according to expanding multiple, the rule that laser facula after focusing is less, control circuit controls the multiple of autozoom beam expanding lens, by cooperatively interacting with focus lamp group, realize adopting different focussed laser spot in different scanning areas, described focussed laser spot diameter continuously adjustabe between 30-200 μm.
In motion process, mobile negative lens remains photocentre that is vertical with optical axis and optical axis scioptics.
Be further used as preferred embodiment, described guide rail two ends are also provided with guide rail limited block, for limiting the amplitude of fluctuation of slide block.
Be further used as preferred embodiment, described optical focusing unit includes prefocusing mirror, galvanometer and rear focus lamp, the control end of described galvanometer is connected with control circuit, described laser beam by after prefocusing mirror by vibration mirror reflected to rear focus lamp focusing on the dental case of processing plane.
Described in optical focusing unit, focus on for avoiding light beam and burn out lens, improve calibration result, prefocusing mirror, rear focus lamp and other convex lens all select planoconvex lens.Described galvanometer guides laser beam to scan by deflection.
Be further used as preferred embodiment, the control end of described autozoom beam expanding lens is connected with control circuit.
Be further used as preferred embodiment, the multiple that freely expands of described autozoom beam expanding lens is 2-8 times.
Be further used as preferred embodiment, described laser instrument is optical fiber laser.
The optical maser wavelength of described optical fiber laser is 1090nm, and laser power 50-500W is adjustable, beam quality M
2< 1.1.
With reference to Fig. 2, a kind of metal laser 3D prints dental case method, in each layer operation that 3D prints, includes following steps:
A, increase autozoom beam expanding lens expand multiple, utilize the inside and outside profile of the laser printing dental case after focusing on;
B, reduce autozoom beam expanding lens expand multiple, the entity part between the inside and outside profile utilizing the laser printing dental case after focusing on.
Be further used as preferred embodiment, for inside and outside profile in described steps A, utilize the scanning of the laser limes marginis after focusing at least twice respectively, by the operation in above-mentioned steps A repeatedly.
Be further used as preferred embodiment, also regulate laser power in described steps A and step B, the power that laser is applied in inside and outside profile, entity part is identical.
As in above-mentioned steps, when printing the inside and outside profile of dental case, the laser power of laser instrument is set to 50-100W, and when printing the entity part of dental case, because the multiple that expands of autozoom beam expanding lens is reduced to 2 times, therefore correspondingly the laser power of laser instrument is set to 200W-400W, ensures that the energy density of laser facula is relatively stable with this, thus ensure that the homogenize material of printing objects, precision are high.
With reference to Fig. 3, specific embodiments of the invention are described:
Be illustrated in figure 3 dental case cross-sectional view, when apparatus of the present invention print this Rotating fields, first adopt the hot spot of diameter 50 μm to carry out scanning in-profile and exterior contour, now the multiple of autozoom beam expanding lens is set to 4 times, and the laser power of laser instrument is set to 50-100W; For ensureing the intensity of part (dental case), can scan repeatedly in-profile and exterior contour respectively.
After completing aforesaid operations, this device passes through the size of the adjustment raising focal beam spot of optical zoom unit and autozoom beam expanding lens, such as the multiple that expands of autozoom beam expanding lens is set to 2 times, the laser power of laser instrument is set to 200W-400W, then carries out scan operation to the entity part between inner and exterior contour.
More than that better enforcement of the present invention is illustrated, but the invention is not limited to described embodiment, except being applied to except dental case by apparatus of the present invention and method, also can be applied to the manufacture of other parts, such as machine components, other irregularly shaped objects etc.; Those of ordinary skill in the art can also make all equivalents or replacement under the prerequisite without prejudice to spirit of the present invention, and these equivalent distortion or replacement are all included in the application's claim limited range.
Claims (10)
1. a metal laser 3D prints dental case device, it is characterized in that: include control circuit, laser instrument, autozoom beam expanding lens, mobile negative lens unit, optical focusing unit and the processing plane for placing dental case, the laser beam that described laser instrument is launched focuses on the dental case of processing plane by autozoom beam expanding lens, mobile negative lens unit and optical focusing unit successively, and described control circuit is connected with autozoom beam expanding lens, mobile negative lens unit and optical focusing unit respectively.
2. a kind of metal laser 3D according to claim 1 prints dental case device, it is characterized in that: described mobile negative lens unit includes mobile negative lens, servomotor, fork, slide block and guide rail, described mobile negative lens is fixed on slide block, described servomotor drives slide block to move on guide rail by fork, and the control end of described servomotor is connected with control circuit.
3. a kind of metal laser 3D according to claim 2 prints dental case device, it is characterized in that: described guide rail two ends are also provided with guide rail limited block.
4. a kind of metal laser 3D according to claim 1 prints dental case device, it is characterized in that: described optical focusing unit includes prefocusing mirror, galvanometer and rear focus lamp, the control end of described galvanometer is connected with control circuit, described laser beam by after prefocusing mirror by vibration mirror reflected to rear focus lamp focusing on the dental case of processing plane.
5. a kind of metal laser 3D according to claim 1 prints dental case device, it is characterized in that: the control end of described autozoom beam expanding lens is connected with control circuit.
6. a kind of metal laser 3D according to claim 1 prints dental case device, it is characterized in that: the multiple that freely expands of described autozoom beam expanding lens is 2-8 times.
7. a kind of metal laser 3D according to claim 1 prints dental case device, it is characterized in that: described laser instrument is optical fiber laser.
8. metal laser 3D prints a dental case method, it is characterized in that: in each layer operation that 3D prints, include following steps:
A, increase autozoom beam expanding lens expand multiple, utilize the inside and outside profile of the laser printing dental case after focusing on;
B, reduce autozoom beam expanding lens expand multiple, the entity part between the inside and outside profile utilizing the laser printing dental case after focusing on.
9. a kind of metal laser 3D according to claim 8 prints dental case method, it is characterized in that: for inside and outside profile in described steps A, utilizes the scanning of the laser limes marginis after focusing at least twice respectively.
10. a kind of metal laser 3D according to claim 8 prints dental case method, it is characterized in that: also regulate laser power in described steps A and step B, and the power that laser is applied in inside and outside profile, entity part is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511030533.5A CN105478767A (en) | 2015-12-30 | 2015-12-30 | Device and method for obtaining metal dental prosthesis through laser 3D printing |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201511030533.5A CN105478767A (en) | 2015-12-30 | 2015-12-30 | Device and method for obtaining metal dental prosthesis through laser 3D printing |
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| CN105478767A true CN105478767A (en) | 2016-04-13 |
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| CN201511030533.5A Pending CN105478767A (en) | 2015-12-30 | 2015-12-30 | Device and method for obtaining metal dental prosthesis through laser 3D printing |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105750728A (en) * | 2016-04-20 | 2016-07-13 | 华南理工大学 | Light spot changing optical scanning method and device for selective laser part processing |
| CN105799176A (en) * | 2016-04-26 | 2016-07-27 | 广东汉邦激光科技有限公司 | Laser output device and 3D printer |
| CN106392071A (en) * | 2016-09-18 | 2017-02-15 | 四川大学 | Method used for improving manufacturing efficiency and precision of additive formed through powder bed fusion |
| CN106863783A (en) * | 2017-04-17 | 2017-06-20 | 中山大简科技有限公司 | A kind of multi-pass combined system for 3D printings |
| CN107498049A (en) * | 2017-09-05 | 2017-12-22 | 洛阳华理研究院科技有限公司 | A kind of light path device of self-action adjustable focus plane for 3D printing |
| CN109940880A (en) * | 2019-04-12 | 2019-06-28 | 西安增材制造国家研究院有限公司 | A kind of 3 D stereo scanning forming device and forming method based on laser formation |
| CN110680532A (en) * | 2019-11-12 | 2020-01-14 | 无锡市创艺义齿配制有限公司 | False tooth 3D printing manufacturing process and 3D printing device thereof |
| CN111730861A (en) * | 2020-06-30 | 2020-10-02 | 北京闻亭泰科技术发展有限公司 | 3D prints laser processing module based on digital light processing |
| CN114178679A (en) * | 2020-09-15 | 2022-03-15 | 台达电子工业股份有限公司 | Laser processing apparatus |
| CN114378308A (en) * | 2021-11-30 | 2022-04-22 | 杭州正向增材制造技术有限公司 | Laser printing method and system |
| CN114770933A (en) * | 2022-04-21 | 2022-07-22 | 深圳市华阳新材料科技有限公司 | Combined type 3D printing and scanning method |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105750728A (en) * | 2016-04-20 | 2016-07-13 | 华南理工大学 | Light spot changing optical scanning method and device for selective laser part processing |
| CN105799176A (en) * | 2016-04-26 | 2016-07-27 | 广东汉邦激光科技有限公司 | Laser output device and 3D printer |
| CN105799176B (en) * | 2016-04-26 | 2018-01-02 | 广东汉邦激光科技有限公司 | laser output device and 3D printer |
| CN106392071A (en) * | 2016-09-18 | 2017-02-15 | 四川大学 | Method used for improving manufacturing efficiency and precision of additive formed through powder bed fusion |
| CN106863783A (en) * | 2017-04-17 | 2017-06-20 | 中山大简科技有限公司 | A kind of multi-pass combined system for 3D printings |
| CN107498049A (en) * | 2017-09-05 | 2017-12-22 | 洛阳华理研究院科技有限公司 | A kind of light path device of self-action adjustable focus plane for 3D printing |
| CN109940880A (en) * | 2019-04-12 | 2019-06-28 | 西安增材制造国家研究院有限公司 | A kind of 3 D stereo scanning forming device and forming method based on laser formation |
| CN110680532A (en) * | 2019-11-12 | 2020-01-14 | 无锡市创艺义齿配制有限公司 | False tooth 3D printing manufacturing process and 3D printing device thereof |
| CN110680532B (en) * | 2019-11-12 | 2021-07-13 | 无锡市创艺义齿配制有限公司 | False tooth 3D printing manufacturing process and 3D printing device thereof |
| CN111730861A (en) * | 2020-06-30 | 2020-10-02 | 北京闻亭泰科技术发展有限公司 | 3D prints laser processing module based on digital light processing |
| CN114178679A (en) * | 2020-09-15 | 2022-03-15 | 台达电子工业股份有限公司 | Laser processing apparatus |
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