KR20180072206A - Precision processing method of 3d printing result and precision processing apparatus - Google Patents

Precision processing method of 3d printing result and precision processing apparatus Download PDF

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KR20180072206A
KR20180072206A KR1020160175526A KR20160175526A KR20180072206A KR 20180072206 A KR20180072206 A KR 20180072206A KR 1020160175526 A KR1020160175526 A KR 1020160175526A KR 20160175526 A KR20160175526 A KR 20160175526A KR 20180072206 A KR20180072206 A KR 20180072206A
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cnc
cooling
result
heat generated
finishing
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김정기
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김정기
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    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
    • G05B19/414—Structure of the control system, e.g. common controller or multiprocessor systems, interface to servo, programmable interface controller
    • G05B19/4145—Structure of the control system, e.g. common controller or multiprocessor systems, interface to servo, programmable interface controller characterised by using same processor to execute programmable controller and numerical controller function [CNC] and PC controlled NC [PCNC]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/33—Director till display
    • G05B2219/33099—Computer numerical control [CNC]; Software control [SWC]
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/45—Nc applications
    • G05B2219/45187—Printer
    • 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
    • Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

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  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)

Abstract

The present invention relates to an apparatus and a method for precisely processing 3 printing result. The method includes: printing a designed 3D modeling into a 3D model; post-processing the fabricated 3D printing result by using a CNC machine; spraying a cooling compound by using a cooling injector to cool heat generated when the fabricated 3D printing result is post-processed by the CNC machine; and precisely processing the 3D printing result while cooling the heat generated during CNC cutting by spraying the cooling compound by using the cooling injector. Accordingly, when the 3D printing result is post-processed by the CNC machine, the heat generated during CNC machining is cooled by injecting a coolant to prevent a product from being deformed due to the heat generated during cutting of the result, so that the deformation of the product is prevented and the precision of the 3D result is increased by the CNC machining.

Description

3차원 프린터 결과물의 정밀가공방법 및 정밀가공장치{PRECISION PROCESSING METHOD OF 3D PRINTING RESULT AND PRECISION PROCESSING APPARATUS}[0001] PRECISION PROCESSING METHOD OF 3D PRINTING RESULT AND PRECISION PROCESSING APPARATUS [0002]

본 발명은 3차원 프린터 결과물의 정밀가공에 관한 것으로, 특히 3차원 프린터 결과물을 CNC 가공하여 정밀도를 높일 수 있는 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a precision processing of a three-dimensional printer resultant, and in particular, a three-dimensional printer resultant can be CNC-processed to increase precision.

일반적으로 프린터는 대상물에 문자 또는 도안 등을 인쇄하는 장치를 의미하는 것으로, 컴퓨터에 연결하여 종이에 인쇄하는 프린터장치로 업무용 또는 가정용으로서 널리 사용되고 있다.2. Description of the Related Art [0002] Generally, a printer is a device that prints letters, drawings, and the like on an object, and is widely used as a printer or a printer for printing on paper by being connected to a computer.

이와 같이, 프린터에 경우 대상물이 되는 종이 또는 시트를 소정의 방향으로 이동하면서 2차원적으로 인쇄하는 것에 불과한 반면에, 최근 3차원적인 조형물로 형상화 할 수 있는 3차원 프린터가 개발되었다.As described above, a three-dimensional printer capable of shaping into a three-dimensional molding material has been developed, whereas it is only a two-dimensionally printing a paper or sheet as an object of the printer in a predetermined direction.

이러한, 3차원 프린터(3D Printer)로는 광경화 수지 조형 방식(SLA; Stereo Lithography Apparatus), 선택적 레이저 소결 조형 방식(SLS; Selective Laser Sintering), 용융 수지 압출 조형 방식(FDM; Fused DepositionModeling), 잉크젯 및 광조형 혼합 방식(PolyJet; Photopolymer Jetting Technology), 마스크 투영 이미지 경화 방식(DLP; Digital Light Procedding) 등의 다양한 방식이 개발되었다.As such a 3D printer, there are a Stereo Lithography Apparatus (SLA), a Selective Laser Sintering (SLS), a Fused Deposition Modeling (FDM) Various methods have been developed such as PolyGet (Photopolymer Jetting Technology), and Mask Projection Image Curing (DLP; Digital Light Procedure).

상기한, 여러 가지 방식 중 DLP에 경우 컴퓨터로 작업된 가상의 3차원 CAD (computer-aided design) 모델을 손으로 만질 수 있는 조형물로 제작하는 것으로 소재를 한 층씩(Layer by layer) 적층하여 최종적인 형상을 구현하고, 특히, 다양한 기술의 특징적 차이에 따라 고체 분말 또는 액체의 플라스틱, 금속제, 왁스, 종이 등의 다양한 재료를 사용할 수 있다.In the above-mentioned DLP, a virtual three-dimensional computer-aided design (CAD) model operated by a computer is manufactured as a sculptable material that can be touched by hand, and the materials are layered one by one Various materials such as solid powder or liquid plastic, metal, wax, paper and the like can be used depending on the characteristic difference of various technologies.

따라서, 3차원 프린터(3D Printing)을 활용하면 비용 대비 효율성을 높일 수 있기 때문에 변화가 빠른 디자인분야 또는 제조업분야에 활용도가 매우 높아, 제3산업형명의 태동이라 할 정도이고, 미국, 일본 등의 각 선진국에서는 3D Printing 기술을 본격 상용화하고 있다.Therefore, 3D printing (3D printing) can increase the cost efficiency. Therefore, it can be used in the rapidly changing design field or manufacturing field. 3D printing technology is fully commercialized in each advanced country.

3차원 프린터의 결과물은 정밀도가 완벽하지 못해 정밀한 부품을 제조하는 경우 CNC 가공과 같은 후가공을 통해 정밀도를 높이는 공정이 필요한 실정이다.The result of the 3D printer is not perfect in precision, and in the case of manufacturing precision parts, it is necessary to increase the precision through post-processing such as CNC machining.

하지만, CNC 가공의 경우 금속 절삭에 적합한 환경으로 설치되어 있어 플라스틱소재의 3차원 프린터 결과물을 절삭하는 경우 공구에서 발생하는 열에 의해 결과물의 제품 변형이 발생하거나 정밀도 저하 등 품질이 낮아지는 문제가 발생할 수 있다.However, in the case of CNC machining, it is installed in an environment suitable for metal cutting. Therefore, when cutting the result of a three-dimensional printer of a plastic material, the resultant product may be deformed due to heat generated by the tool, have.

등록특허 제10-1591438호, "3D 프린팅 금속 제품의 표면 처리 방법"Registered Patent No. 10-1591438, "Surface Treatment Method of 3D Printing Metal Product &

따라서 본 발명의 목적은 3차원 프린터 결과물을 CNC 가공을 통해 정밀하게 후가공하는 경우 발생하는 열에 의한 결과물의 변형을 방지하기 위한 3차원 프린터 결과물의 정밀가공방법 및 정밀가공장치를 제공하는데에 있다.SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a precision machining method and a precision machining apparatus for three-dimensional (2D) printer results to prevent deformation of a product due to heat generated when CNC machining is finely finished.

상기의 목적에 따른 본 발명은 설계된 3D 모델링을 통해 3차원 모형으로 프린팅하는 단계와, 제작된 3차원 프린터 결과물을 CNC 장치로 후가공하는 단계와, CNC 장치로 3차원 프린터 결과물을 후가공하면서 발생하는 열을 냉각시키기 위해 냉각 분사기로 냉각 화합물을 스프레이 형태로 분사하는 단계와, 냉각 분사기에 의해 냉각 화합물을 분사하여 CNC 정삭시 발생하는 열을 냉각시키면서 3차원 프린터 결과물을 정밀하게 가공하는 단계로 이루어짐을 특징으로 한다.According to an aspect of the present invention, there is provided a method of manufacturing a three-dimensional printer, comprising the steps of: printing a three-dimensional model through a designed 3D modeling; finishing the produced three-dimensional printer with a CNC apparatus; And spraying the cooling compound in a spray form by a cooling injector to spray the cooling compound to the cooling injector to cool the heat generated during finishing the CNC, .

또한, 본 발명은 설계된 3D 모델링을 이용하여 3차원 모형을 제작하는 3차원 프린터와, 제작된 3차원 프린터 결과물의 정밀도를 높이기 위해 정삭하는 CNC 장치와, CNC 장치에 의한 3차원 프린터 결과물의 정삭시 발생하는 열에 의해 결과물이 변형되는 것을 방지하기 위해 냉각 화합물을 분사함으로써 CNC 장치의 정삭시 발생한 열과 함께 증발되도록 하여 3차원 프린터 결과물의 정밀도를 높이도록 하는 냉각 분사기로 구성함을 특징으로 한다.The present invention also relates to a three-dimensional printer for producing a three-dimensional model using the designed 3D modeling, a CNC device for finishing the produced three-dimensional printer to increase the precision of the result, and a finishing device for finishing the three- And a cooling sprayer for spraying a cooling compound to prevent the resultant product from being deformed due to the generated heat, thereby evaporating the generated heat generated by the finishing of the CNC apparatus, thereby enhancing the accuracy of the result of the three-dimensional printer.

본 발명은 3차원 프린터 결과물을 CNC 장치에 의해 후가공하는 경우 결과물의 정삭시 발생하는 열에 의한 제품의 변형을 방지하도록 CNC 가공시에 냉각제를 분사하여 발생한 열을 냉각시킴으로써 제품의 변형을 방지함과 함께 CNC 가공에 의해 3차원 결과물의 정밀도를 높일 수 있는 효과가 있다.The present invention prevents the deformation of the product by cooling the heat generated by spraying the coolant during the CNC processing so as to prevent the deformation of the product caused by the heat generated when finishing the result of finishing the product by the CNC apparatus And the accuracy of the three-dimensional result can be increased by CNC machining.

도 1은 본 발명의 실시 예에 따른 3차원 결과물의 정밀가공방법을 설명하는 흐름도이다.1 is a flowchart illustrating a method of precisely machining a three-dimensional product according to an embodiment of the present invention.

이하 첨부한 도면을 참조하여 본 발명의 바람직한 실시 예를 상세히 설명한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명의 실시 예에 따른 3차원 프린터 결과물의 정밀가공방법을 설명하는 흐름도이다.FIG. 1 is a flowchart for explaining a precision machining method of a three-dimensional printer resultant according to an embodiment of the present invention.

이를 참조하면, 먼저 미리 설계된 3D 모델링을 이용하여 3차원 프린터를 통해 결과물을 제작한다.Referring to this, first, the result is produced through a 3D printer using a pre-designed 3D modeling.

제작된 3차원 프린터 결과물은 표면이 거칠고 정밀도가 떨어지는 것이며, 후가공을 통해 표면을 매끄럽게 가공함과 함께 결과물의 정밀도를 높이는 것이 필요하다.The resulting 3D printer results in rough surfaces and poor precision, and it is necessary to smooth the surface through post-processing and increase the precision of the result.

본 발명에서는 3차원 프린터 결과물을 CNC 장치에 의해 후가공함으로써 제품의 정밀도를 높이도록 한다.In the present invention, the result of the three-dimensional printer is post-processed by the CNC apparatus to increase the precision of the product.

3차원 프린터에 의해 제작된 결과물을 CNC 장치의 작업대에 올려 놓고 미리 설계된 형태로 정밀도를 높이도록 가공하게 되며, 이때 CNC 장치에 의해 후가공되는 3차원 프린터 결과물은 밀폐된 공간에서 작업이 이루어지게 된다.The result produced by the 3D printer is placed on the workbench of the CNC machine and processed to increase the accuracy in a pre-designed form. At this time, the result of the 3D printer after the CNC machine is processed in a closed space.

CNC 가공의 경우 금속재질을 가공하기에 적합한 환경임에 따라 가공시 많은 열이 발생하게 되며, CNC 가공시 발생하는 열에 의해 3차원 프린터 결과물의 변형이 발생하게 된다.In the case of CNC machining, a large amount of heat is generated due to the environment suitable for machining a metal material, and the resultant three-dimensional printer results in deformation of the three-dimensional printer due to heat generated during CNC machining.

일반적으로 3차원 프린터 결과물은 플라스틱과 같은 소재를 사용하며, 녹는점이 대체로 50~60℃임에 따라 CNC 가공시 발생하는 고열로 인해 플라스틱이 녹아 제품의 변형이 발생하여 정밀도가 떨어지게 된다.Generally, the result of 3D printer uses materials such as plastic. Since the melting point is generally 50 to 60 ° C, due to the high heat generated in CNC machining, the plastic melts and the product is deformed and the precision is lowered.

본 발명에서는 밀폐된 공간에서의 3차원 프린터 결과물의 CNC 가공시 발생하는 열을 줄이기 위해 냉각 화합물을 CNC 장치에 분사한다.In the present invention, a cooling compound is injected into a CNC device to reduce the heat generated during CNC machining of a three-dimensional printer resultant in a closed space.

상기 냉각 화합물을 냉각 분사기에 의해 스프레이 형태로 CNC 가공시 열이 발생하는 위치에 분사하여 열과 함께 증발하도록 함으로써 열을 줄일 수 있는 것이다.The cooling compound is sprayed to a position where heat is generated during CNC machining in the form of a spray by a cooling injector, and is evaporated together with heat, thereby reducing heat.

본 발명의 일 실시 예로서 상기 냉각 화합물은 휘발성이 좋은 액체를 분사하게 되며, 바람직하게는 에탄올과 이소프로필을 혼합하여 사용한다.In an embodiment of the present invention, the cooling compound injects a volatile liquid, preferably ethanol and isopropyl mixed.

에탄올은 일반적으로 휘발성이 좋은 액체이고, 여기에 휘발성을 높여 발생한 열을 빠르게 냉각시키기 위해 이소프로필을 혼합하여 사용하며, 상기 에탄올과 이소프로필을 7:3의 중량비로 혼합하여 냉각 화합물을 제조한다.Ethanol is generally a volatile liquid. To increase the volatility, ethanol is mixed with isopropyl to rapidly cool the generated heat. Ethanol and isopropyl are mixed in a weight ratio of 7: 3 to prepare a cooling compound.

상기 냉각 화합물은 밀폐된 공간에서 분사하는 것이 바람직하며, 이소프로필은 독성이 있어 외부로 분산되지 않도록 밀폐된 공간에서 분사하여 CNC 가공시 발생한 열과 함께 증발되도록 하는 것이 좋다.The cooling compound is preferably sprayed in a closed space. It is preferable that the isopropyl is sprayed in a closed space so as not to be dispersed to the outside because it is toxic, so that it evaporates together with heat generated during CNC processing.

3차원 프린터 결과물을 CNC 장치에 냉각 화합물을 분사하여 발생한 열을 낮추면서 정삭 가공하여 열에 의한 제품의 변형을 방지하며 정밀가공할 수 있는 것이다.The result of the 3-dimensional printer is sprayed with the cooling compound to the CNC device, and the generated heat is reduced while finishing it, thereby preventing the deformation of the product due to heat and precision machining.

상기에서 설명한 바와 같이 본 발명은 3차원 프린터 결과물을 CNC 장치에 의해 후가공하는 경우 결과물의 정삭시 발생하는 열에 의한 제품의 변형을 방지하도록 CNC 가공시에 냉각제를 분사하여 발생한 열을 식혀줌으로써 제품의 변형을 방지함과 함께 CNC 가공에 의해 3차원 결과물의 정밀도를 높일 수 있는 효과가 있다.As described above, according to the present invention, when a CNC apparatus is post-processed by a CNC apparatus, the present invention can cool the generated heat by spraying a coolant during CNC processing so as to prevent deformation of the product caused by heat generated during finishing of the product, And the precision of the three-dimensional result can be increased by CNC machining.

상술한 본 발명의 설명에서는 구체적인 실시 예에 관해 설명하였으나, 여러가지 변형이 본 발명의 범위에서 벗어나지 않고 실시할 수 있다. 따라서 본 발명의 범위는 설명된 실시 예에 의하여 정할 것이 아니고 특허청구범위 및 그 특허청구범위의 균등한 것에 의해 정해져야 한다.While the present invention has been described in connection with certain exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. Therefore, the scope of the present invention should not be limited by the described embodiments but should be determined by the scope of the appended claims and equivalents thereof.

본 발명은 3차원 프린터를 이용한 결과물을 정밀하게 가공하는데에 사용될 수 있다.INDUSTRIAL APPLICABILITY The present invention can be used to precisely process a product using a three-dimensional printer.

Claims (4)

설계된 3D 모델링을 통해 3차원 모형으로 프린팅하는 단계와,
제작된 3차원 프린터 결과물을 CNC 장치로 후가공하는 단계와,
CNC 장치로 3차원 프린터 결과물을 후가공하면서 발생하는 열을 냉각시키기 위해 밀폐된 공간에서 냉각 분사기로 냉각 화합물을 스프레이 형태로 분사하는 단계와,
냉각 분사기에 의해 냉각 화합물을 분사하여 CNC 정삭시 발생하는 열을 냉각시키면서 3차원 프린터 결과물을 정밀하게 가공하는 단계로 이루어짐을 특징으로 하는 3차원 프린터 결과물의 정밀가공방법.
Printing with a 3D model through designed 3D modeling,
Finishing the produced three-dimensional printer result with a CNC apparatus,
Spraying a cooling compound into the cooling injector in an enclosed space to cool the heat generated by post-processing the three-dimensional printer result with the CNC device,
And a step of spraying a cooling compound by a cooling injector to precisely process the result of the three-dimensional printer while cooling the heat generated when finishing the CNC.
제1항에 있어서,
상기 냉각 화합물은 에탄올과 이소프로필을 혼합하여 구성하되, 에탈올과 이소프로필을 7:3의 중량비로 혼합하는 것을 특징으로 하는 3차원 프린터 결과물의 정밀가공방법.
The method according to claim 1,
Wherein the cooling compound is constituted by mixing ethanol and isopropyl, and mixing ethanol and isopropyl at a weight ratio of 7: 3.
설계된 3D 모델링을 이용하여 3차원 모형을 제작하는 3차원 프린터와,
제작된 3차원 프린터 결과물의 정밀도를 높이기 위해 정삭하는 CNC 장치와,
CNC 장치에 의한 3차원 프린터 결과물의 정삭시 발생하는 열에 의해 결과물이 변형되는 것을 방지하기 위해 밀폐된 공간에서 냉각 화합물을 분사함으로써 CNC 장치의 정삭시 발생한 열과 함께 증발되도록 하여 3차원 프린터 결과물의 정밀도를 높이도록 하는 냉각 분사기로 구성함을 특징으로 하는 3차원 프린터 결과물의 정밀가공장치.
A three-dimensional printer for producing a three-dimensional model using the designed 3D modeling,
A CNC apparatus for finishing the produced three-dimensional printer to enhance the precision of the result,
In order to prevent the resultant from being deformed due to the heat generated when finishing the result of the 3D printer by the CNC device, the cooling compound is injected in the closed space to evaporate along with the heat generated during finishing of the CNC device, And a cooling sprayer for increasing the height of the three-dimensional printer.
제3항에 있어서,
상기 냉각 화합물을 에탄올과 이소프로필을 7:3의 중량비로 혼합한 것임을 특징으로 하는 3차원 프린터 결과물의 정밀가공장치.
The method of claim 3,
Wherein the cooling compound is a mixture of ethanol and isopropyl at a weight ratio of 7: 3.
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Publication number Priority date Publication date Assignee Title
KR20200084509A (en) 2019-01-03 2020-07-13 주식회사 쓰리디팩토리 Manufacturing for 3d printing product, 3d printing product and post treatment apparatus for processed product
KR20230110114A (en) 2022-01-14 2023-07-21 씨와이오토텍 주식회사 Post-processing system for additive products

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JPH0243291A (en) * 1988-06-10 1990-02-13 L D R Partners Cooling fluid for fabricating operation
KR100362738B1 (en) * 2000-10-17 2002-11-27 한국과학기술원 Lamination Manufacturing Method and Apparatus using Ultrasonic Apparatus
KR20150117723A (en) * 2014-04-10 2015-10-21 주식회사 인스턴 Three-dimensional printer having a smooth finishing tool device
KR101591438B1 (en) 2015-07-31 2016-02-03 한국생산기술연구원 Method for treating surface of 3d printing metal products
JP2016041464A (en) * 2014-08-18 2016-03-31 株式会社アストロテック Dry ice powder injection type cooling method, and cooling apparatus

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0243291A (en) * 1988-06-10 1990-02-13 L D R Partners Cooling fluid for fabricating operation
KR100362738B1 (en) * 2000-10-17 2002-11-27 한국과학기술원 Lamination Manufacturing Method and Apparatus using Ultrasonic Apparatus
KR20150117723A (en) * 2014-04-10 2015-10-21 주식회사 인스턴 Three-dimensional printer having a smooth finishing tool device
JP2016041464A (en) * 2014-08-18 2016-03-31 株式会社アストロテック Dry ice powder injection type cooling method, and cooling apparatus
KR101591438B1 (en) 2015-07-31 2016-02-03 한국생산기술연구원 Method for treating surface of 3d printing metal products

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200084509A (en) 2019-01-03 2020-07-13 주식회사 쓰리디팩토리 Manufacturing for 3d printing product, 3d printing product and post treatment apparatus for processed product
KR20230110114A (en) 2022-01-14 2023-07-21 씨와이오토텍 주식회사 Post-processing system for additive products

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