KR20200029649A - Excavation bits using 3D printers and its manufacturing method - Google Patents

Excavation bits using 3D printers and its manufacturing method Download PDF

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Publication number
KR20200029649A
KR20200029649A KR1020180105286A KR20180105286A KR20200029649A KR 20200029649 A KR20200029649 A KR 20200029649A KR 1020180105286 A KR1020180105286 A KR 1020180105286A KR 20180105286 A KR20180105286 A KR 20180105286A KR 20200029649 A KR20200029649 A KR 20200029649A
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South Korea
Prior art keywords
excavation
cemented carbide
printer
seating surface
manufacturing
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KR1020180105286A
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Korean (ko)
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이중완
박상태
조정래
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이중완
조정래
박상태
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Priority to KR1020180105286A priority Critical patent/KR20200029649A/en
Publication of KR20200029649A publication Critical patent/KR20200029649A/en

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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
    • B22F10/10—Formation of a green body
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/28—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
    • B22F3/008—
    • 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
    • B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P17/00—Metal-working operations, not covered by a single other subclass or another group in this subclass
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/08—Roller bits
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/50—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of roller type
    • 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 present invention relates to a drilling bit using a 3D printer and a manufacturing method thereof and, more specifically, to a drilling bit using a 3D printer and a manufacturing method thereof, which can spray super hard powder by means of a 3D printer to manufacture a super hard tip, thereby shortening time required for a fabrication process and increasing the hardness of the super hard tip. Furthermore, a previously used drilling body can be reused to prevent waste of resources and increase efficiency. According to the present invention, at least one super hard tip is attached to an outer circumferential surface of the drilling body by using a 3D printer, thereby simplifying a fabrication process and reducing time required for the fabrication process. In addition, the super hard tip of the drilling bit can provide HRC 65-80, which is improved from the hardness of a conventional special mold tool steel of HRC 57-58, thereby reducing abrasion caused during a drilling process. Moreover, the drilling bit which is made of conventional special mold tool steel can be reused without being discarded, thereby preventing waste of resources and magnifying efficiency.

Description

3D 프린터를 이용한 굴착비트 및 그 제조방법{Excavation bits using 3D printers and its manufacturing method}Excavation bits using 3D printers and its manufacturing method

본 발명은 3D 프린터를 이용한 굴착비트 및 그 제조방법에 관한 것으로서, 더욱 구체적으로 3D 프린터로 초경분말을 분사하여 초경팁을 제작할 수 있으므로 제조공정시간을 단축할 수 있고, 초경팁의 경도를 상승시킬 수 있으며, 기존에 사용했던 굴착바디를 재사용할 수 있으므로 자원의 낭비를 막고 효율성을 증대시킬 수 있는 3D 프린터를 이용한 굴착비트 및 그 제조방법를 제공코자 하는 것이다.The present invention relates to an excavation bit using a 3D printer and a method for manufacturing the same, and more specifically, to manufacture a cemented carbide tip by spraying a cemented carbide powder with a 3D printer, thereby shortening the manufacturing process time and increasing the hardness of the cemented carbide tip. It is possible to provide an excavation bit using a 3D printer and a method of manufacturing the same, which can prevent the waste of resources and increase the efficiency because the existing excavation body can be reused.

일반적으로 굴착비트는 굴착헤드의 하단에 수개 설치하여 연암반층을 파쇄하기 위해 사용하는 것이다.In general, excavation bits are installed at the bottom of the excavation head to be used to crush the soft rock layer.

상기 굴착비트의 선행기술로는 대한민국 등록특허공보 제10-1636720호와 같이 굴착헤드의 전방에 커터(=굴착비트)가 수개 부착되며, 이 굴착비트는 특수금형공구강인 SKD 61 재질로 가공하여 열처리하여 제조된 것으로, 경도가 HRC 57~58정도로 연암반층을 파쇄하는 작업 중 파손되는 경우가 많고, 이로 인해 굴착작업한 후 재사용할 수 없어 폐기처분해야 하는 문제점이 있었다.As the prior art of the excavation bit, several cutters (= excavation bits) are attached to the front of the excavation head as in Korean Patent Registration No. 10-1636720, and the excavation bit is processed with SKD 61 material, a special mold tool steel, and heat treated. As it was manufactured, the hardness is often broken during the work of crushing the soft rock layer with a HRC of about 57 to 58, and as a result, there is a problem that it must be disposed of because it cannot be reused after excavation.

이를 보완하기 위해 최근에는 대한민국 공개특허공보 제10-2009-0086663호와 같이 굴착비트의 외주면에 초경인 비트날(=초경팁)을 부착하여 굴착이 이루어지도록 하나, 초경팁을 부착하기 위해서는 굴착비트의 외주면에 초경팁을 부착할 수 있도록 홈을 형성하는 과정과 이 홈에 고가인 초경으로 가공된 초경팁을 삽입하여 고정하는 과정으로 제조되므로 제조공정시간이 증가하고 이로 인한 제조단가가 증가하는 문제점이 있었다.In order to compensate for this, as described in Korean Patent Application Publication No. 10-2009-0086663, a bit bit (= cemented carbide tip), which is a carbide bit, is attached to the outer circumferential surface of the excavation bit so that excavation is performed. It is manufactured by the process of forming a groove to attach a cemented carbide tip to the outer circumferential surface of the product, and by inserting and fixing a carbide tip processed with expensive cemented carbide into the groove, so the manufacturing process time increases and the manufacturing cost increases. There was.

그리고 상기 초경팁은 굴착하는 과정에서 외부의 충격으로 굴착비트에서 이탈되어 손실되는 문제점도 있었다.In addition, the cemented carbide tip had a problem of being detached from the excavation bit due to external impact during the excavation process.

또한 상기 굴착비트는 굴착하는 과정에서 심하게 마모되기 때문에 재사용하지 못하고 폐기해야 함으로 자원의 낭비가 이루어지는 불합리한 문제점이 있었다.In addition, since the excavation bit is severely worn in the process of excavation, it cannot be reused and must be discarded, resulting in an unreasonable problem that wastes resources.

KR 10-1636720 B1 2016.07.06.KR 10-1636720 B1 2016.07.06. KR 10-2009-0086663 A 2009.08.14.KR 10-2009-0086663 A 2009.08.14.

이에 본 발명자는 상기한 종래 굴착비트의 문제점을 해소하고자 연구하여 개발한 것으로서, 본 발명에서는 굴착비트를 사용한 후 폐기하는 폐단을 없애고 재사용할 수 있도록 하고, 굴착비트의 굴착하는 과정에서 마모가 최소한으로 이루어질 수 있도록 굴착비트의 수명을 연장시키도록 하며, 굴착비트를 용이하게 제작할 수 있도록 하고, 제조단가를 저감시킬 수 있는 3D 프린터를 이용한 굴착비트 및 그 제조방법을 제공함에 기술적 과제를 두고 본 발명을 완성한 것이다.Accordingly, the present inventors have researched and developed to solve the above-mentioned problems of the conventional drilling bits, and in the present invention, after using the drilling bits, they can be removed and reused, and wear is minimized in the process of excavating the drilling bits. In order to extend the life of the excavation bit so that it can be achieved, to make it easy to manufacture the excavation bit, and to provide an excavation bit using a 3D printer capable of reducing the manufacturing cost and a method for manufacturing the present invention, the present invention It is completed.

과제 해결 수단으로 본 발명에서는 외주면에 산형으로 돌출된 돌출부와 내부의 중앙에 축연결공이 형성된 굴착바디를 가공하는 굴착바디 가공단계; 가공된 굴착바디의 돌출부의 단부에 초경안착면을 가공하는 초경안착면 가공단계; 상기 초경안착면에 3D 프린터로 초경분말을 분사하여 초경팁을 제조하는 3D 프린터의 분사단계;를 포함하여 구성한다.In the present invention as a solution to the problem, an excavation body processing step of processing an excavation projecting in the form of an acid on an outer circumferential surface and an excavation body having an axial connecting hole formed in the center of the inside; Carbide seating surface processing step of processing a carbide seating surface at the end of the protruding portion of the processed excavation body; It comprises; a spraying step of a 3D printer for manufacturing a cemented carbide tip by spraying a cemented carbide powder onto the cemented carbide seating surface.

또한 본 발명에서는 굴착작업 중에 묻은 이물질을 굴착바디에서 제거하는 이물질제거단계; 굴착작업 중에 발생된 외관상 크랙, 외관이 찍혀 손상된 부위가 있는지 굴착바디를 확인하는 외관검사단계; 외관검사가 이루어진 굴착바디 중에 재사용이 가능한 굴착바디의 돌출부의 단부에 초경안착면이 형성되도록 가공하는 초경안착면 가공단계; 상기 초경안착면에 3D 프린터로 초경분말을 분사하여 초경팁을 제조하는 3D 프린터의 분사단계;를 포함하여 구성한다.In addition, in the present invention, the foreign material removal step of removing the foreign matter deposited during the excavation work from the excavation body; An appearance inspection step of checking the excavation body to see if there are any cracks or damages on the exterior that are generated during excavation; Carbide seating surface processing step of processing such that a cemented seating surface is formed at the end of the protrusion of the reusable excavating body among the excavated bodies having an external inspection; It comprises; a spraying step of a 3D printer for manufacturing a cemented carbide tip by spraying a cemented carbide powder onto the cemented carbide seating surface.

그리고 본 발명에서는 외주면에 산형으로 돌출되게 돌출부를 형성하고, 내부의 중앙에 베어링이 삽입되어 축 설치될 수 있도록 축연결공이 형성된 굴착바디와; 상기 굴착바디의 돌출부의 단부에 형성된 초경안착면과; 상기 초경안착면에 3D 프린터를 이용하여 초경분말을 분사하여 부착 구성된 초경팁;을 포함하여 구성한다.And in the present invention, the excavation body is formed so as to protrude in the form of a mountain on the outer circumferential surface, and a shaft connection hole is formed so that a bearing is inserted into the center of the inside and the shaft is installed; A cemented carbide seating surface formed at an end of the protrusion of the excavation body; It comprises a; a cemented carbide tip configured to spray the cemented carbide powder on the cemented carbide seating surface using a 3D printer.

본 발명에서 굴착비트는 3D 프린터를 이용하여 굴착바디의 외주면에 한 개 이상의 초경팁이 부착되도록 제조함으로 제조과정을 단순화할 수 있고, 제조공정시간을 단축할 수 있는 효과를 제공할 수 있다.In the present invention, by using a 3D printer, one or more cemented carbide tips are attached to the outer circumferential surface of the excavating body, thereby simplifying the manufacturing process and providing an effect of shortening the manufacturing process time.

그리고 상기 굴착비트의 초경팁은 기존의 특수금형공구강(일 예로 SKD 61)의 경도보다 상승된 HRC 65~80을 제공할 수 있으므로 굴착과정에서 발생되는 마모를 감소시킬 수 있는 효과를 제공할 수 있다.In addition, the cemented carbide tip of the digging bit can provide an HRC 65 to 80 that is higher than the hardness of the existing special mold tool steel (eg SKD 61), thereby providing an effect of reducing wear generated during the digging process. .

기존의 특수금형공구강으로 제작된 굴착비트를 폐기하지 않고 굴착비트를 재사용할 수 있으므로 자원의 낭비를 막고 효율성을 극대화시킬 수 있는 효과를 제공할 수 있다.Since it is possible to reuse the excavating bit without disposing of the existing excavating bit made of special mold tool steel, it is possible to prevent the waste of resources and maximize the efficiency.

도 1은 본 발명에서 제공하는 굴착비트의 사시도
도 2는 본 발명에서 제공하는 굴착비트의 단면구성도
도 3은 다양한 형태의 굴착비트에 초경팁을 부착한 상태를 보인 도면
도 4는 굴착비트의 초경안착면의 다양한 실시예를 보인 도면
도 5는 초경안착면에 부착된 초경팁의 다른 실시예를 보인 도면
도 6은 본 발명에서 제공하는 굴착비트의 제조과정을 보인 순서도
도 7은 본 발명에서 제공하는 굴착비트의 재사용하는 과정을 보인 순서도1 is a perspective view of a drilling bit provided by the present invention
Figure 2 is a cross-sectional configuration of the drilling bit provided in the present invention
3 is a view showing a state in which a carbide tip is attached to various types of excavation bits.
Figure 4 is a view showing various embodiments of the carbide seating surface of the drilling bit
5 is a view showing another embodiment of a cemented carbide tip attached to a cemented carbide seating surface.
Figure 6 is a flow chart showing the manufacturing process of the drilling bit provided in the present invention
7 is a flow chart showing the process of reusing the drilling bits provided by the present invention.

이하 본 발명의 실시예 중의 첨부 도면을 결합하여, 본 발명의 실시예 중의 기술방안에 대해 분명하고 완전하게 설명하고자 한다. 물론, 설명하는 실시예는 단지 본 발명의 바람직한 실시예일 뿐, 모든 실시예가 아님은 자명하다. 본 발명의 실시예에 따라, 본 분야의 보통 기술자가 창조적인 노동을 하지 않고 획득한 모든 기타 실시예는 전부 본 발명의 보호 범위에 속한다.Hereinafter, the technical solutions in the embodiments of the present invention will be clearly and completely described by combining the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are merely preferred embodiments of the present invention, and it is obvious that not all embodiments. According to the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative labor are all within the protection scope of the present invention.

이하에서 본 발명의 구성을 첨부 도면에 의거하여 설명한다.Hereinafter, the configuration of the present invention will be described based on the accompanying drawings.

도 1은 본 발명에서 제공하는 굴착비트의 사시도를 도시한 것이고, 도 2는 본 발명에서 제공하는 굴착비트의 단면구성도를 도시한 것이다.Figure 1 shows a perspective view of the drilling bit provided by the present invention, Figure 2 shows a cross-sectional configuration of the drilling bit provided by the present invention.

본 발명은 굴착헤드(미도시)의 전면에 수개 부착하여 연암반층을 파쇄하기 위하여 사용되는 것으로, 특수금형공구강인 굴착바디(110)와 이 굴착바디(110)의 중앙에 베어링이 삽입되는 축연결공(140)으로 구성된다.The present invention is to be used to crush the soft rock layer by attaching several to the front of the excavation head (not shown), a special mold tool steel excavation body 110 and a shaft connection in which a bearing is inserted in the center of the excavation body 110 It consists of a ball 140.

상기 굴착헤드는 선행기술에 기재된 바와 같이 일반적인 구성으로 본 발명에서 상세한 설명은 생략한다.The excavation head is a general configuration as described in the prior art, and detailed description is omitted in the present invention.

상기 굴착바디(110)는 연암반층이 굴착될 수 있도록 산형으로 돌출된 돌출부(120)가 형성된다.The excavation body 110 is formed with a protrusion 120 protruding in the form of a mountain so that the soft rock layer can be excavated.

상기 돌출부(120)는 도 3과 같이 굴착비트(100)의 다양한 형태에 따라 한 개 또는 수 개 형성될 수 있으며, 단부에 초경팁(200)이 부착 구성될 수 있도록 초경안착면(130)이 형성된다.The protrusion 120 may be formed one or several according to various types of excavation bits 100, as shown in Figure 3, the cemented carbide surface 130 so that the cemented tip 200 can be configured to be attached to the end Is formed.

상기 초경안착면(130)에는 초경분말이 분사될 수 있도록 저장된 3D 프린터를 이용하여 초경분말을 분사하고, 사용자가 원하는 형태로 프린팅하여 초경팁(200)을 구성하면, 본 발명은 완성된다.When the cemented carbide surface 200 is sprayed with a 3D printer stored to allow the cemented carbide powder to be ejected, and printed in a shape desired by the user to configure the cemented carbide tip 200, the present invention is completed.

도 4는, 초경안착면(130)의 다양한 형태를 보인 실시예로,4 is an embodiment showing various types of carbide seating surfaces 130,

상기 초경안착면(130)은 도 7의 (a)와 같이 산형으로 돌출된 초경안착면(130)에 초경분말이 저장된 3D 프린터로 분사하여 초경팁(200)이 형성되도록 한 형태이고, 도 7의 (b)와 같이 돌출부(120)의 상단을 수평으로 절단한 초경안착면(130)을 구성하고, 이 초경안착면(130)에 초경분말이 저장된 3D 프린터로 분사하여 초경팁(200)이 형성되도록 한 형태이며, 도 7의 (c)와 같이 돌출부(120)의 상단을 골이 형성되도록 함몰되게 초경안착면(130)을 형성하고, 이 초경안착면(130)에 초경분말이 저장된 3D 프린터로 분사하여 프린팅된 초경팁(200)을 구성하면, 본 발명의 다른 실시예는 완성된다.The cemented carbide surface 130 is a form in which a cemented carbide tip 200 is formed by spraying a 3D printer in which cemented carbide powder is stored on the cemented carbide surface 130 protruding in a mountain shape as shown in FIG. As shown in (b), the cemented carbide surface 130 is horizontally cut at the top of the protrusion 120, and the cemented carbide tip 200 is sprayed onto the cemented carbide surface 130 by spraying it with a 3D printer. Formed so as to be formed, the upper surface of the protrusion 120 as shown in Figure 7 (c) to form a cemented carbide surface 130 to be recessed so that the bone is formed, the cemented carbide surface 130 is stored in 3D When the printed carbide tip 200 is configured by spraying with a printer, another embodiment of the present invention is completed.

도 5는, 초경팁(200)의 다른 실시예를 보인 도면으로,5 is a view showing another embodiment of the cemented carbide tip 200,

상기 초경안착면(130)에 초경분말을 분사하여 부착 구성한 초경팁(200)의 외주연으로 돌출팁부(210)를 일정한 간격으로 형성하면, 본 발명의 다른 실시예는 완성된다.When the protruding tip portion 210 is formed at regular intervals with the outer periphery of the cemented carbide tip 200 configured by spraying the cemented carbide powder onto the cemented carbide surface 130, another embodiment of the present invention is completed.

도 6은 본 발명에서 제공하는 굴착비트(100)의 제조과정을 보인 순서도를 도시한 것이다.Figure 6 shows a flow chart showing the manufacturing process of the drilling bit 100 provided in the present invention.

도 6은 굴착비트(100)의 제조방법에 관한 것으로서, 굴착바디(110) 가공단계, 초경안착면(130) 가공단계, 3D 프린터의 분사단계에 의해 제조되도록 하는 것으로, 이하에서 각 단계를 보다 구체적으로 설명한다.6 relates to a method of manufacturing the excavation bit 100, to be manufactured by the excavation body 110 processing step, the cemented carbide surface 130 processing step, and the spraying step of a 3D printer. It will be described in detail.

① 굴착바디(110) 가공단계① Excavation body (110) processing step

굴착바디(110)는 특수금형공구강 재질이며, 강도는 HRC 57~58정도이고, 고온강도, 내열충격성을 겸비한 범용강이고, 다이캐스팅금형, 열간압출공구, 열간프레이스금형에 사용되며, 외주면에 산형으로 돌출되게 돌출부(120)를 형성하고, 내부의 중앙에 베어링이 삽입되어 축 설치될 수 있도록 축연결공(140)이 형성되도록 가공한다.The excavation body 110 is a special mold tool steel material, the strength is HRC 57 ~ 58, is a general-purpose steel having high temperature strength and heat shock resistance, and is used for die casting molds, hot extrusion tools, hot press molds, and acid type on the outer circumferential surface. The protruding portion 120 is formed to protrude, and the shaft connecting hole 140 is processed so that the bearing is inserted into the center of the inside to be installed.

② 초경안착면(130) 가공단계② Carbide seating surface 130 processing step

가공된 굴착바디(110)의 돌출부(120)에는 초경팁(200)이 부착 구성될 수 있도록 도 7의 형태 중 어느 하나를 선택하여 초경안착면(130)을 가공한다.The cemented carbide surface 130 is processed by selecting any one of the shapes in FIG. 7 so that the cemented carbide tip 200 may be attached to the protruding portion 120 of the processed excavation body 110.

상기 초경안착면(130)을 자세히 설명하면,When the carbide seating surface 130 is described in detail,

상기 초경안착면(130)은 도 7의 (a)와 같이 산형으로 돌출된 형태이고, 도 7의 (b)와 같이 돌출부(120)의 상단을 수평으로 절단한 형태이며, 도 7의 (c)와 같이 돌출부(120)의 상단은 골이 형성되도록 함몰된 형태이다.The carbide seating surface 130 is a form protruding in the form of a mountain, as shown in Fig. 7 (a), and is a form of horizontally cutting the top of the protruding portion 120, as shown in Fig. 7 (b), ), The upper end of the protrusion 120 is recessed to form a bone.

③ 3D 프린터의 분사단계③ Spraying step of 3D printer

상기 초경안착면(130)에는 초경분말이 분사될 수 있도록 저장된 3D 프린터를 이용하여 분사하고, 연암반층을 굴착할 수 있도록 경도가 HRC 65~80인 초경팁(200)을 사용자가 원하는 형태로 구성하면, 굴착비트(100)의 제조가 완성된다.The cemented carbide surface 130 is sprayed using a stored 3D printer so that cemented carbide powder can be sprayed, and a cemented carbide tip 200 having a hardness of HRC 65 to 80 is formed in a form desired by the user to excavate the soft rock layer. Then, manufacturing of the excavation bit 100 is completed.

도 7은 본 발명에서 제공하는 굴착비트(100)의 재사용하는 과정을 보인 순서도를 도시한 것이다.7 is a flow chart showing a process of reusing the excavation bit 100 provided by the present invention.

도 7은 굴착비트(100)를 재활용하는 제조방법으로, 이물질제거단계, 외관검사단계, 초경안착면(130) 가공단계, 3D 프린터의 분사단계에 의해 제조되도록 하는 것으로, 이하에서 각 단계를 보다 구체적으로 설명한다.7 is a manufacturing method for recycling the excavation bit 100, to be produced by a foreign material removal step, an external appearance inspection step, a cemented carbide seating surface 130 processing step, and a spraying step of a 3D printer. It will be described in detail.

① 이물질제거단계① Foreign material removal step

굴착바디(110)는 굴착작업 중에 묻은 이물질을 제거하여 외관을 청결하게 한다.The excavation body 110 cleans the exterior by removing foreign substances on the excavation.

② 외관검사단계② Visual inspection stage

굴착작업 중에 발생된 외관상 크랙, 외관이 찍혀 손상된 부위가 있는지 굴착바디(110)를 확인하는 검사가 이루어진다.An inspection is performed to check the excavation body 110 for any cracks or appearances that are damaged during the excavation.

③ 초경안착면(130) 가공단계③ Carbide seating surface 130 processing step

외관검사가 이루어진 굴착바디(110) 중에 재사용이 가능한 굴착바디(110)는 초경팁(200)이 부착 구성될 수 있도록 굴착바디(110)의 돌출부(120)에 도 7의 형태 중 어느 하나를 선택하여 가공하여 초경안착면(130)을 형성한다.The reusable excavation body 110 among the excavation bodies 110 having undergone an external inspection is selected from any one of the shapes shown in FIG. 7 on the protrusion 120 of the excavation body 110 so that the cemented carbide tip 200 can be attached. To form a cemented carbide seating surface 130.

④ 3D 프린터의 분사단계④ 3D printer spraying step

가공된 상기 초경안착면(130)에는 초경분말이 분사될 수 있도록 저장된 3D 프린터를 이용하여 분사하고, 연암반층을 굴착할 수 있도록 사용자가 원하는 형태로 초경팁(200)을 구성하면, 굴착비트(100)의 재사용하는 제조과정은 완성된다.When the cemented carbide seating surface 130 is sprayed using a 3D printer stored so that the cemented carbide powder can be sprayed, and the user configures the cemented carbide tip 200 to excavate the soft rock layer, excavation bits ( The reuse process of 100) is completed.

이상은 단지 본 발명의 약간의 개선점으로 형성된 바람직한 실시예일 뿐으로, 결코 본 발명을 제한하기 위한 것이 아니며, 본 발명의 개선점에 대하여 실시한 동등한 변화 또는 등가의 변화, 또는 본 명세서에 도시되지 않은 조합은 모두 본 발명의 보호 범위 내에 포함되어야 할 것이다.The above is merely a preferred embodiment formed with some improvements of the present invention, and is not intended to limit the present invention, and any equivalent or equivalent changes made to the improvements of the present invention, or combinations not shown in this specification are all It should be included within the protection scope of the present invention.

100: 굴착비트
110: 굴착바디 120: 돌출부
130: 초경안착면 140: 축연결공
200: 초경팁100: drilling bit
110: excavation body 120: protrusion
130: cemented carbide seat 140: shaft connecting hole
200: carbide tips

Claims (6)

외주면에 산형으로 돌출된 돌출부(120)와 내부의 중앙에 축연결공(140)이 형성된 굴착바디(110)를 가공하는 굴착바디(110) 가공단계;(S100)
가공된 굴착바디(110)의 돌출부(120)의 단부에 초경안착면(130)을 가공하는 초경안착면(130) 가공단계;(S200)
상기 초경안착면(130)에 3D 프린터로 초경분말을 분사하여 초경팁(200)을 제조하는 3D 프린터의 분사단계;(S300)를 포함하여 이루어지는 3D 프린터를 이용한 굴착비트 제조방법.
Excavation body 110 processing step of processing the excavation body 110 protruding in the form of an acid on the outer circumferential surface and the excavation body 110 in which the shaft connecting hole 140 is formed in the center of the inside; (S100)
Carbide seating surface 130 processing step of processing the cemented carbide seating surface 130 at the end of the protruding portion 120 of the processed excavation body 110; (S200)
A 3D printer spraying step of manufacturing a cemented carbide tip 200 by spraying a cemented carbide powder onto the cemented carbide seating surface 130 using a 3D printer.
굴착작업 중에 묻은 이물질을 굴착바디(110)에서 제거하는 이물질제거단계;(S110)
굴착작업 중에 발생된 외관상 크랙, 외관이 찍혀 손상된 부위가 있는지 굴착바디(110)를 확인하는 외관검사단계;(S120)
외관검사가 이루어진 굴착바디(110) 중에 재사용이 가능한 굴착바디(110)의 돌출부(120)의 단부에 초경안착면(130)이 형성되도록 가공하는 초경안착면(130) 가공단계;(S200)
상기 초경안착면(130)에 3D 프린터로 초경분말을 분사하여 초경팁(200)을 제조하는 3D 프린터의 분사단계;(S300)를 포함하여 이루어지는 3D 프린터를 이용한 굴착비티 제조방법.
Debris removal step of removing the foreign matters deposited during the excavation from the excavation body 110; (S110)
Appearance inspection step of checking the excavation body 110 to see if there are any cracks or external damage occurred during the excavation work; (S120)
Carbide seating surface 130 processing step of processing so that the cemented carbide surface 130 is formed at the end of the protrusion 120 of the reusable excavation body 110 that is reusable in the excavation body 110 in which the appearance inspection is performed; (S200)
3D printer spraying step of manufacturing a cemented carbide tip 200 by spraying cemented carbide powder with a 3D printer on the cemented carbide seating surface 130; an excavation bit manufacturing method using a 3D printer comprising (S300).
청구항 1 또는 청구항 2항에 있어서,
상기 초경안착면(130)은 산형으로 돌출된 형태, 굴착바디(110)의 돌출부(120)의 상단을 수평으로 절단한 형태 및 굴착바디(110)의 돌출부(120)의 상단에 골이 형성되도록 함몰된 형태 중 어느 하나의 선택하여 형성한 것을 특징으로 하는 3D 프린터를 이용한 굴착비티 제조방법.
The method according to claim 1 or claim 2,
The carbide seating surface 130 has a mountain-shaped protruding shape, a form in which the top of the protruding portion 120 of the excavating body 110 is cut horizontally, and a bone is formed at the top of the protruding portion 120 of the excavating body 110. Excavation bit manufacturing method using a 3D printer, characterized in that formed by selecting any one of the recessed form.
외주면에 산형으로 돌출되게 돌출부(120)를 형성하고, 내부의 중앙에 베어링이 삽입되어 축 설치될 수 있도록 축연결공(140)이 형성된 굴착바디(110)와;
상기 굴착바디(110)의 돌출부(120)의 단부에 형성된 초경안착면(130)과;
상기 초경안착면(130)에 3D 프린터를 이용하여 초경분말을 분사하여 부착 구성된 초경팁(200);을 포함하는 것을 특징으로 하는 3D 프린터를 이용한 굴착비트.
An excavation body (110) having a protrusion (120) formed to protrude in the form of an acid on the outer circumferential surface, and having a shaft connecting hole (140) to allow shaft installation by inserting a bearing in the center of the inside;
A cemented carbide seating surface 130 formed at an end of the protrusion 120 of the excavation body 110;
Excavation bit using a 3D printer, characterized in that it comprises; a cemented carbide tip (200) configured by spraying a cemented carbide powder using a 3D printer on the cemented seat surface (130).
청구항 4항에 있어서,
상기 초경안착면(130)은 산형으로 돌출된 형태, 굴착바디(110)의 돌출부(120)의 상단을 수평으로 절단한 형태 및 굴착바디(110)의 돌출부의 상단에 골이 형성되도록 함몰된 형태 중 어느 하나의 선택하여 형성한 것을 특징으로 하는 3D 프린터를 이용한 굴착비트.
The method according to claim 4,
The carbide seating surface 130 has a mountain-shaped protruding shape, a form in which the top of the protruding portion 120 of the excavating body 110 is cut horizontally, and a depression in which a bone is formed at the top of the protruding portion of the excavating body 110 Excavation bit using a 3D printer, characterized in that formed by selecting any one of.
청구항 4항에 있어서,
상기 초경안착면(130)에 초경분말을 분사하여 부착 구성한 초경팁(200)의 외주연으로 돌출팁부(210)를 일정한 간격으로 형성한 것을 특징으로 하는 3D 프린터를 이용한 굴착비트.The method according to claim 4,
Excavation bit using a 3D printer, characterized in that the protruding tip portion 210 is formed at regular intervals with the outer periphery of the cemented carbide tip 200 constructed by spraying cemented carbide powder onto the cemented carbide surface 130.
KR1020180105286A 2018-09-04 2018-09-04 Excavation bits using 3D printers and its manufacturing method KR20200029649A (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090086663A (en) 2008-02-11 2009-08-14 다이아몬드 주식회사 Excavating bit
KR101636720B1 (en) 2014-12-11 2016-07-06 김종화 Tunnel boring apparatus to move back and forth

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090086663A (en) 2008-02-11 2009-08-14 다이아몬드 주식회사 Excavating bit
KR101636720B1 (en) 2014-12-11 2016-07-06 김종화 Tunnel boring apparatus to move back and forth

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