KR101977333B1 - A 3D printing device having a wiper type powder supplier - Google Patents
A 3D printing device having a wiper type powder supplier Download PDFInfo
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- KR101977333B1 KR101977333B1 KR1020170110393A KR20170110393A KR101977333B1 KR 101977333 B1 KR101977333 B1 KR 101977333B1 KR 1020170110393 A KR1020170110393 A KR 1020170110393A KR 20170110393 A KR20170110393 A KR 20170110393A KR 101977333 B1 KR101977333 B1 KR 101977333B1
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- powder
- main body
- chamber
- powder supply
- shaping
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/141—Processes of additive manufacturing using only solid materials
- B29C64/153—Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/205—Means for applying layers
- B29C64/214—Doctor blades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/255—Enclosures for the building material, e.g. powder containers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/307—Handling of material to be used in additive manufacturing
- B29C64/321—Feeding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/307—Handling of material to be used in additive manufacturing
- B29C64/321—Feeding
- B29C64/329—Feeding using hoppers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
Abstract
The present invention relates to a 3D printing apparatus having a wiper-type powder supply unit, and more particularly to a 3D printing apparatus having a plurality of powder supply chambers and a plurality of shaping chambers provided circumferentially and having a turning radius to a position of the powder supply chamber and the shaping chamber To a 3D printing apparatus having a wiper-type powder supply unit so that the apparatus is simplified and the working time can be shortened.
For this, a plurality of powder supply chambers for supplying powder and a plurality of shaping chambers for 3D shaping are arranged alternately in the circumferential direction, and are installed above the main body, And a hybrid powder supply unit that is connected to the center of the main body and rotates in a circumferential direction of the main body to continuously supply and planarize the powder housed in the powder supply chamber to a neighboring forming chamber, Wherein the main body is cylindrical, and the hybrid powder supply portion includes an extension portion that is axially coupled to the main body and extends toward an edge of the main body, a powder material installed in the powder supply chamber to be rolled on the extension portion, And a pressurizing roller for conveying and planarizing the powder supply chamber to the adjacent forming chamber Wherein the hybrid powder supply unit is axially coupled to the center of the top surface of the main body and is rotated 360 degrees with respect to the center of the top surface of the main body, wherein a turning radius of the hybrid powder supplying unit corresponds to the powder supply chamber and the molding chamber, Wherein the roller pushes the powder material in the powder supply chamber toward the adjacent forming chamber by rotation of the extension portion and simultaneously performs the planarizing operation as the rolling of the pressure roller is performed, The present invention also provides a 3D printing apparatus having the above-
Description
The present invention relates to a 3D printing apparatus having a wiper-type powder feeder, and more particularly, to a 3D printing apparatus having a wiper-type powder feeder for simplifying the apparatus and shortening the working time.
Recently, 3D printers capable of forming desired objects using three-dimensional (3D) data have been actively researched.
It is expected that the market of 3D printers will become very big in the future as it can be easily molded and manufactured according to the design of a product having a complicated structure.
3D printers are actively used in various fields such as medicine, industry, and life because they can easily process objects to be produced based on digitized drawing information.
Most of the 3D printers that have been put into practical use now use synthetic resin materials that are easy to process, but their applications are limited due to limitations of the physical properties of synthetic resins. In addition, 3D There is a growing demand for printers.
Recently, as a method of performing 3D printing using a metal material, a method has been proposed in which a material powder is spread and arranged in a thin layer, and only a desired portion is sintered using a laser (or an electron beam) And a selective laser sintering (SLS) method in which a desired portion is sintered with a laser is repeatedly performed.
SLS is mainly represented by direct metal laser sintering (DMLS) using metal powder.
In the SLS type 3D printer, it is essential to spread the material powder thinly one layer at a time to arrange it as a powder layer. In this method, after spreading the material powder, a leveling blade is used to flatten the powder while adjusting the height of the powder. Or a height adjusting plate for moving together with the discharge port on the side of the discharge port to directly discharge the discharged powder to form a powder layer.
Hereinafter, a powder supply apparatus for a 3D printer according to the prior art will be described with reference to FIG.
As shown in Fig. 1, the powder feeder of the 3D printer is composed of a
The
The pressurizing
The
That is, when the
In such a conventional 3D printer powder feeder, a powder P having a predetermined height is uniformly applied to the entire upper surface area of the bed B before dissolving the powder P using a laser in a 3D printer, The powder P is coated on the upper surface of the bed B because the process for forming the printed material 3 on one surface of the bed B and then forming the layer of the printed material on the surface of the printed material 3 is repeated, It is preferable that the entire top surface of the bed B is coated when the driving unit reciprocates once along the longitudinal direction of the bed B. [
However, the conventional powder supply device for 3D printer has the following problems.
As shown in FIG. 1, since the conventional powder coating method linearly moves and applies powder, a large amount of powder is unnecessarily consumed in a region deviating from the work surface W where the molding of the printed material is formed, and the powder is wasted There was a problem.
Further, since the powder supply device for supplying powder and the bed (B) for shaping are constituted respectively, there is a problem that it is difficult to simplify the structure of the apparatus.
SUMMARY OF THE INVENTION The present invention has been conceived to solve the problems described above, and it is an object of the present invention to provide a hybrid powder feeder comprising a plurality of powder supply regions and a plurality of shaping regions together, It is an object of the present invention to provide a 3D printing apparatus having a wiper-type powder supply unit that simplifies the structure of the apparatus and allows the printing operation to be performed quickly by performing powder supply and planarization operations from the powder supply region to the shaping region will be.
In order to achieve the above-mentioned object, the present invention provides a powder processing apparatus including a main body in which a plurality of powder supply chambers for supplying powder and a plurality of forming chambers for 3D molding are alternately disposed in the circumferential direction, A laser oscillation unit for performing 3D shaping by irradiating a laser while being moved toward the center of the main body, and rotating the main body in the circumferential direction by being axially coupled to the center of the main body, and supplying and planarizing the powder housed in the powder supply chamber to the neighboring forming chamber Wherein the hybrid powder supply unit includes an extension portion that is axially coupled to the main body and extends toward an edge of the main body, and a hybrid powder supply portion that is installed to be rolled on the extension portion, The powder material in the powder supply chamber is transferred to the molding chamber adjacent to the powder supply chamber The hybrid powder supply unit is rotatably rotated 360 degrees with respect to the center of the upper surface of the main body of the main body. The rotation radius of the hybrid powder supply unit is controlled by the powder supply chamber and the molding chamber position The pressing roller pushes the powder material in the powder supply chamber toward the forming chamber next to the forming chamber by the rotation of the extension portion and the flattening operation can be performed successively as the pressing roller is rolled. The present invention provides a 3D printing apparatus having a wiper-type powder supply unit.
As another example for achieving the above object, there is provided a plasma display apparatus comprising: a main body in which a plurality of forming chambers are arranged in a circumferential direction; a laser oscillating portion provided above the main body to perform 3D molding by irradiating a laser while being moved toward the forming chamber; And a hybrid powder supply unit which is axially coupled to the center of the main body and rotates in a circumferential direction of the main body to apply powder toward the shaping chamber and perform a planarization operation successively, A hopper which is fixed to the extended portion and accommodates the powder material and has a discharge port at one end thereof for discharging the powdered material, a discharge port provided at the other end of the hopper, And a pressurizing roller for flattening the powder while passing through the powder feeder, And the rotation radius of the hybrid powder supply unit corresponds to the position of the shaping chamber so that the hopper rotates in the circumferential direction of the main body when the extension unit rotates to supply the powder through the discharge port And the pressure roller discharges through the discharge port to flatten the collected powder. The present invention also provides a 3D printing apparatus having a wiper-type powder supply unit.
The 3D printing apparatus having the wiper-type powder supplying unit according to the present invention has the following effects.
First, a plurality of powder supply chambers and a plurality of shaping sections are formed together in one apparatus, and the powder supply chambers and shaping sections are arranged alternately in the circumferential direction, thereby simplifying the structure of the apparatus.
Secondly, by providing a hybrid powder supply unit having a rotation radius at a position from the powder supply chamber and the forming chamber to the powder supply chamber and the forming chamber, centering on the center of the apparatus provided with the plurality of powder supply chambers and the forming chambers, There is an effect that can be.
Third, a recovery chamber is provided in an inner lower part of the apparatus, and a filter capable of separating powder falling down by particle size is provided at an upper part of the recovery chamber, thereby enabling powder separation for reuse.
At this time, a transfer pipe is formed between the recovery chamber and the powder supply chamber, and suction force is generated in the transfer pipe to allow the powder in the recovery chamber to be transferred to the powder supply chamber, thereby facilitating powder reuse.
Fourth, since a drop port is provided between the powder supply chamber and the shaping chamber and the drop port is configured to be opened and closed, even when different kinds of powder materials are used, the powder is supplied to different powder supply chambers Can be prevented.
1 is a perspective view showing a powder feeder of a conventional 3D printing apparatus;
2 is a perspective view illustrating a 3D printing apparatus having a wiper-type powder supplying unit according to a first embodiment of the present invention.
FIGS. 3A and 3B are plan views of a powder supplying unit of a 3D printing apparatus having a wiper-type powder supplying unit according to a first embodiment of the present invention
4 is a plan view showing a 3D printing apparatus having a wiper-type powder supplying unit according to a second embodiment of the present invention.
5 is a cross-sectional view showing the main part of the powder supplying unit of the 3D printing apparatus having the wiper-type powder supplying unit according to the second embodiment of the present invention
6 is a cross-sectional view showing a 3D printing apparatus having a wiper-type powder supplying unit according to a third embodiment of the present invention
FIG. 7 is a cross-sectional view showing a main portion of a 3D printing apparatus having a wiper-type powder supply unit according to a fourth embodiment of the present invention; FIG.
It is to be understood that the words or words used in the present specification and claims are not to be construed in a conventional or dictionary sense and that the inventor can properly define the concept of a term in order to describe its invention in the best possible way And should be construed in light of the meanings and concepts consistent with the technical idea of the present invention.
Hereinafter, a 3D printing apparatus having a wiper-type powder supplying unit according to a first embodiment of the present invention (hereinafter referred to as a 3D printing apparatus) will be described with reference to FIGS. 2 to 3B.
The 3D printing apparatus has a technical feature such that powder supply and 3D modeling of a plurality of regions can be performed on one apparatus.
Thus, the device configuration can be simplified.
Particularly, since the wiper-type powder supply unit is rotated, the powder supply and planarization operations can be performed successively, thereby shortening the working time due to the continuity of the operation, thereby increasing work productivity.
The 3D printing apparatus includes a
The
As shown in FIG. 2, the
The
The number of the
The
The
The operation principle of the
Next, the
The
The configuration and operation of the
Next, the hybrid
The rotation radius of the hybrid
That is, since the
In addition, since the powder transportation is performed by the rotation of the hybrid
In other words, conventionally, as the supply of powder is linear, the laser oscillation can not be achieved with respect to the
The hybrid
The
The
The
The
The
3 (b), the applying
The
This is to ensure that the forces acting on both ends of the
Hereinafter, the operation of the 3D printing apparatus constructed as described above will be described.
In a state where the plurality of
Then, the
Accordingly, the powder supplied to each
Then, the
Thereafter, the hybrid
Thereafter, sintering is performed through laser oscillation. As a series of processes are repeatedly performed, the programmed 3D molding is performed in each of the
The
This will be described as a second embodiment of the present invention and will be described with reference to FIGS. 4 and 5 attached hereto.
Before describing, the same components as those of the first embodiment are denoted by the same reference numerals, and a detailed description thereof will be omitted.
5 is a plan view of a 3D printing apparatus having a wiper-type powder supply unit according to a second embodiment of the present invention. In the
Next, although not shown, a
Next, the hybrid
It is natural that the hybrid
The hybrid
The
At this time, a
That is, when the
At the other end of the
The pressurizing
The discharge amount of the powder discharged through the
That is, a screw or the like is formed on the upper part of the
Since a 3D printing apparatus having such a configuration is provided, only a plurality of
In addition, there is a feature that the apparatus can be simplified since the constitution for powder supply, flattening and 3D molding is all constituted in one apparatus.
In the course of molding through the 3D printing apparatus, a large amount of powder materials are dropped into the
This is shown as a third embodiment of the present invention and will be described with reference to FIG. 6 attached hereto.
The same reference numerals are given to the same components as those of the above-described embodiments, and a detailed description thereof will be omitted.
6 is a cross-sectional view schematically showing the inside of the
The
Next, the
The
At this time, the
Next, the
The
This is because some of the powders supplied from the
Next, a
That is, the powder contained in the
Next, the
With such a configuration, the powder material generated in the process of 3D molding is divided into the reusable powder and the waste powder through the
On the other hand, 3D molding can be performed with a powder material of different powder material.
For example, 3D molding may be performed simultaneously or separately using a polymer material powder and a metal material powder. In the process of powder supply and planarization, different kinds of powders may be introduced into different
This is shown as a fourth embodiment of the present invention, and will be described with reference to Fig. 7 attached hereto.
The same components as those of the above-described embodiments are denoted by the same reference numerals, and a detailed description thereof will be omitted.
The 3D printing apparatus according to the fourth embodiment is provided with a
The dropping port 130 is provided at a position where the powder is supplied to the
The drop port 130 is connected to the inside of the
At this time, the drop port (130) is provided with an opening / closing member (140) for opening / closing the drop port (130).
When the different kinds of powders are to be introduced into the
The opening and closing
Hereinafter, the operation of the 3D printing apparatus of the fourth embodiment constructed as described above will be described.
For example, in the case where a molding of a polymer material and a molding of a metal material are 3D-shaped in each molding chamber, the hybrid
The hybrid
The polymer powder that has been transported through the hybrid
The metal powder is supplied to the polymer
As described above, the 3D printing apparatus having a wiper-type powder supply unit has a cylindrical main body in which a plurality of powder supply chambers and a forming chamber are alternately arranged in a circumferential direction, and a powder supply chamber and a molding chamber There is a technical feature that the hybrid powder supply portion of the wiper type having a turning radius is axially coupled.
Thus, the apparatus can be simplified, and the powder supply and planarization operations can be performed successively, so that the working time can be shortened.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art.
100: main body 110: powder feed chamber
110A: Polymer
111, 121: lifting plate 130 (130A, 130B)
131: collection chamber 140: opening / closing member
200: laser oscillation part 210: support frame
220: Oscillator 300: Hybrid powder supply part
310: extension part 320:
321: pressure roller 330: hopper
331: Outlet 340: Pressure roller
400: recovery chamber 500: mesh
600: Feed pipe 700: Feed pump
Claims (8)
A laser oscillating unit installed above the main body and irradiating a laser toward the shaping chamber to perform 3D shaping;
And a hybrid powder supply unit which is axially coupled to the center of the main body and rotates in the circumferential direction of the main body, and supplies powder to the neighboring shaping chamber and successively performs planarization work,
Wherein the main body is cylindrical,
The hybrid powder supply unit includes:
An extension portion which is axially coupled to the main body and extends toward an edge of the main body,
And an application unit configured to be rolled on the extension portion and configured to include a pressure roller for transferring and planarizing the powder material in the powder supply chamber to a molding chamber adjacent to the powder supply chamber,
The hybrid powder supply unit is axially coupled to the center of the upper surface of the main body and is rotated 360 degrees with respect to the center of the top surface of the main body. The rotation radius of the hybrid powder supply unit corresponds to the powder supply chamber and the molding chamber,
Wherein the pressing roller pushes the powder material in the powder supply chamber toward the adjacent forming chamber by rotation of the extension portion and simultaneously performs the planarizing operation as rolling of the pressing roller is performed. A 3D printing device having a supply portion.
A laser oscillating unit installed above the main body and irradiating a laser toward the shaping chamber to perform 3D shaping;
And a hybrid powder supply unit that is axially coupled to the center of the main body and rotates in the circumferential direction of the main body, applies powder to the shaping chamber, and performs a planarization operation successively,
The hybrid powder supply unit includes:
An extension portion which is axially coupled to the main body and extends toward an edge of the main body,
A hopper which is fixed to the extension portion and accommodates the powder material and has a discharge port at one end thereof for discharging the powder material;
And a pressure roller installed at the other end of the hopper and planarizing the powder discharged through the discharge port,
The hybrid powder supply unit is axially coupled to the center of the top surface of the main body and is rotated 360 degrees with respect to the center of the top surface of the main body. The rotation radius of the hybrid powder supply unit corresponds to the molding chamber position,
Wherein the hopper rotates in the circumferential direction of the main body during the rotation of the extension part to supply powder through the discharge port and the pressure roller discharges through the discharge port to flatten the collected powder.
The inner bottom of the main body is provided with a recovery chamber for receiving the powder falling down to the inside of the main body during the molding process,
On the upper part of the recovery chamber,
A mesh is installed to filter the falling powder by the particle size,
And a transfer pipe and a transfer pump for transferring the powder recovered in the recovery chamber to the powder supply chamber are provided between the recovery chamber and the powder supply chamber.
Wherein a drop hole communicating with the inside of the main body is formed between the powder supply chamber and the forming chamber in the upper surface of the main body and an opening and closing member for opening and closing the drop port is provided in the drop port. .
Priority Applications (2)
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KR1020170110393A KR101977333B1 (en) | 2017-08-30 | 2017-08-30 | A 3D printing device having a wiper type powder supplier |
PCT/KR2017/009906 WO2019045162A1 (en) | 2017-08-30 | 2017-09-08 | 3d printing apparatus having wiper-type powder supply part |
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KR1020170110393A KR101977333B1 (en) | 2017-08-30 | 2017-08-30 | A 3D printing device having a wiper type powder supplier |
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KR20190023945A KR20190023945A (en) | 2019-03-08 |
KR101977333B1 true KR101977333B1 (en) | 2019-05-13 |
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KR20230045290A (en) | 2021-09-28 | 2023-04-04 | 주식회사 테라웍스 | Apparatus for manufacturing products and method for manufacturing products using therewith |
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KR101640050B1 (en) * | 2015-12-29 | 2016-07-15 | (주)센트롤 | Apparatus for manufacturing three dimensional object |
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FR2984191B1 (en) * | 2011-12-20 | 2014-01-10 | Michelin Soc Tech | MACHINE AND PROCESS FOR ADDITIVE MANUFACTURE OF POWDER |
CN105984147B (en) * | 2015-02-04 | 2018-11-30 | 三纬国际立体列印科技股份有限公司 | Three-dimensional printing device |
KR102290893B1 (en) * | 2015-10-27 | 2021-08-19 | 엘지전자 주식회사 | Laser sintering apparatus capable of continously laser sintering |
US10384435B2 (en) * | 2016-01-04 | 2019-08-20 | Caterpillar Inc. | 3D printing |
KR101676606B1 (en) | 2016-04-06 | 2016-11-16 | 주식회사 대건테크 | Powder supply apparatus for Three-dimensional printer |
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- 2017-09-08 WO PCT/KR2017/009906 patent/WO2019045162A1/en active Application Filing
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KR101640050B1 (en) * | 2015-12-29 | 2016-07-15 | (주)센트롤 | Apparatus for manufacturing three dimensional object |
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KR20230045290A (en) | 2021-09-28 | 2023-04-04 | 주식회사 테라웍스 | Apparatus for manufacturing products and method for manufacturing products using therewith |
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WO2019045162A1 (en) | 2019-03-07 |
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