AU2006248268B2 - Diamond cutting tool and manufacturing method thereof - Google Patents

Diamond cutting tool and manufacturing method thereof Download PDF

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Publication number
AU2006248268B2
AU2006248268B2 AU2006248268A AU2006248268A AU2006248268B2 AU 2006248268 B2 AU2006248268 B2 AU 2006248268B2 AU 2006248268 A AU2006248268 A AU 2006248268A AU 2006248268 A AU2006248268 A AU 2006248268A AU 2006248268 B2 AU2006248268 B2 AU 2006248268B2
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AU
Australia
Prior art keywords
body portion
diamond particles
metal
diamond
cutting tool
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
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AU2006248268A
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AU2006248268B9 (en
AU2006248268A1 (en
Inventor
Rin-Soon Park
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Individual
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Individual
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Publication of AU2006248268A1 publication Critical patent/AU2006248268A1/en
Application granted granted Critical
Publication of AU2006248268B2 publication Critical patent/AU2006248268B2/en
Publication of AU2006248268B9 publication Critical patent/AU2006248268B9/en
Ceased legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • B23P5/00—Setting gems or the like on metal parts, e.g. diamonds on 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D18/00—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
    • B24D18/0018—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for by electrolytic deposition
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
    • C23C30/005—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process on hard metal substrates
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D15/00—Electrolytic or electrophoretic production of coatings containing embedded materials, e.g. particles, whiskers, wires
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D7/00—Electroplating characterised by the article coated
    • C25D7/001—Magnets
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrochemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Description

WO 2006/123874 PCT/KR2006/001780
I
Description DIAMOND CUTTING TOOL AND MANUFACTURING METHOD THEREOF Technical Field The present invention relates to a diamond cutting tool and a manufacturing method thereof, and more particularly to diamond cutting tool which can be shortened in manufacturing time and prolonged in lifetime and a manufacturing method thereof.
Background Art In general, the diamond cutting tool has been used as a cutting tool for cutting a hard material such as stone, metal, concrete, and the like in the construction field or engineering works.
As a manufacturing method of the diamond cutting tool, there has been known a method in which a plurality of cutting segments that is manufactured by a blending, a forming, and a sintering of diamond particles and metal powders is welded around a body portion made of a high speed tool steel such as a carbon tool steel, a low carbon steel, and the like.
However, in such welding method, the processes of blending, forming, and sintering and the welding process for the cutting segments should be independently performed in the separate devices. This causes a problem of complicated manufacturing process so that manufacturing cost and time are increased.
In order to solve this problem, it has been developed an electro-deposition process by which diamond particles are deposited around the steel body portion.
FIGS. 1 to 3 show a conventional manufacturing method for cutting tools according to such electro-deposition process. First, as shown in FIG. 1, it is performed to arrange diamond particles 2 on a disc type steel body portion 1. Then, as shown in FIG. 2, it is performed to immerse the body portion 1 on which diamond particles 2 are arranged in a plating bath 3 filled with an electrolyte 5 such that a metal plate 4 installed in the plating bath 3 is positive-biased and the body portion 1 is negative-biased. Herein, the metal plate 4 is composed of a metal to be electro-deposited between the diamond particles 2 and the body portion, for example, Ni, Cu, Co, and so on, and the electrolyte 5 is a solution containing metal ions forming the metal plate 4.
As set forth before, when the body portion 1 is negative-biased and the metal plate 4 is positive-biased, the metal ions contained in the electrolyte 5 are reduced and precipitated on the negative-biased body portion 1. Although the metal ions in the electrolyte are exhausted through the precipitation, other metal ions are continuously supplied therein from the metal plate 4 through electrolysis, thereby acting on the WO 2006/123874 PCT/KR2006/001780 2 reaction continuously. With the procedure of such reaction taking a sufficient time, as shown in FIG. 3, the diamond particles 2 are adhered to the body portion 1 through the electro-deposited metal 7.
[81 However, according to this conventional manufacturing method, there was a problem in that it takes so much plating time in order to thicken a plating thickness for secure adhesion of the diamond particles. In addition, according to the conventional manufacturing method, there was another problem in that the diamond particles are moved to be in disarray in the course of electro-deposition of the diamond particles after the arrangement of the diamond particles on the body portion.
Disclosure of Invention Technical Problem Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the prior art, and an object of the present invention is to provide a diamond cutting tool in which the diamond particles are securely adhered to a disc type body portion and a manufacturing time is shortened, and a manufacturing method thereof.
Another object of the present invention is to provide a diamond cutting tool in which the diamond particles are coated with magnetic metal and a body portion is magnetized so that the diamond particles coated with metal are fixed to the magnetized body portion through a magnetic force therebetween, thereby preventing the diamond particles from being in disarray, and a manufacturing method thereof.
[11] Still another object of the present invention is to provide a diamond cutting tool in which the diamond particles coated with metal are arranged in multi-layer using a magnetic force and electro-deposited on a body portion, thereby prolonging a lifetime of the cutting tools, and a manufacturing method thereof.
Technical Solution [12] In order to accomplish the above objects, there is provided a method for manufacturing a diamond cutting tool, comprising the steps of: [13] coating the diamond particles with metal; [14] arranging the metal coated diamond particles on a region of a steel body portion intended to be used as a cutting edge; immersing the body portion in a plating bath filled with an electrolyte; and [16] performing the electro-deposition in such a manner that the body portion is negative-biased and a separate metal plate installed in the plating bath for plating is positive-biased, thereby adhering the metal coated diamond particles to the body portion.
[17] The diamond particles may be arranged in multi-layer and electro-deposited so that the diamond particles are thickened to prolong a lifetime of the cutting tool.
[181 The metal coating the diamond particles may be iron or cobalt with excellent Smagnetic property. In case where the diamond particles are coated with the metal with excellent magnetic property, when the metal coated diamond particles are arranged on 00 the body portion, the diamond particles can be fixed to the body portion by a magnetic kiN force generated between the metal coating layer and the body portion through mag- 00 netization of the body portion.
[19] In the mean time, the diamond particles may be coated with metal by means of \IN electro-deposition or fusion welding.
[19a] Definitions of the specific embodiments of the invention as claimed herein follow.
According to a first embodiment of the invention, there is provided a method for manufacturing a diamond cutting tool, comprising the steps of: coating the diamond particles with metal such as iron or cobalt with excellent magnetic property; arranging the metal coated diamond particles on a region of a steel body portion intended to be used as a cutting edge; immersing the body portion in a plating bath filled with an electrolyte; and performing the electro-deposition in such a manner that the body portion is negativebiased and a separate metal plate installed in the plating bath for plating is positivebiased, thereby adhering the metal coated diamond particles to the body portion, wherein when the metal coated diamond particles are arranged on the body portion, the diamond particles are fixed to the body portion by a magnetic force generated between the metal coating layer and the body portion through magnetization of the body portion.
[19b] According to a second embodiment of the invention, there is provided a diamond cutting tool manufactured by the method as claimed in the first embodiment.
Brief Description of the Drawings [20] The above and other objects, features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: [211 FIG. 1 is a view showing a state in which the diamond particles are arranged on a body portion according to a conventional method of manufacturing a cutting tool; [221 FIG. 2 is a view showing a state in which the body portion on which the diamond particles of FIG. I are arranged is immersed in a plating bath; 00 [23] FIG. 3 is a sectional view of the cutting tool electro-deposited with the diamond i particles according to the conventional method of manufacturing the cutting tool; 00 [241 FIG. 4 is a flow chart showing a manufacturing method for a diamond cutting tool according to a preferred embodiment of the present invention; NO [25] FIG. 5 is a perspective view of a diamond particle coated with metal according to the present invention; 1261 FIG. 6 is a view showing a state in which the diamond particles coated with metal are arranged on a body portion according to the present invention; [27] FIG. 7 is a view showing a state in which the body portion on which the diamond particles coated with metal are arranged is immersed in a plating bath according to the present invention; [281 FIG. 8 is a sectional view of the cutting tool electro-deposited with the diamond particles coated with metal according to the present invention; and [29] FIG. 9 is a sectional view showing a cutting tool according to another preferred embodiment of the present invention.
Best Mode for Carrying Out the Invention Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.
[31] FIG. 4 is a flow chart showing a manufacturing method for a diamond cutting tool according to a preferred embodiment of the present invention. As shown in FIG. 4, the WO 2006/123874 PCT/KR2006/001780 4 manufacturing method for a diamond cutting tool according to the present invention comprises the steps of coating the diamond particles with metal (S410), arranging the metal coated diamond particles on a body portion (S430), and electro-depositing the diamond particles on the body portion (S450).
[32] Description will be made in detail to the steps of the manufacturing method for the diamond cutting tool according to the present invention.
[33] FIG. 5 is a perspective view of a diamond particle 20 coated with metal 22. As shown in FIG. 5, for manufacturing the diamond cutting tool, a worker first coats the outer surfaces of the diamond particles 20 with metal to form a metal coating layer 22 (S410). As the coating method for the diamond particles 20, various coating technologies can be used, such as electro-deposition or fusion welding, for example.
That is, there can be used the electro-deposition method in which the surfaces of the diamond particles 20 are coated with metal by means of electroplating through a separate electro-deposition process, or the fusion welding method in which the metal to be coated is fused and welded on the surfaces of the diamond particles [34] The metal constituting the metal coating layer 22 may be a metal with excellent magnetic property, for example, iron cobalt (Co) and the like. When the diamond particles are coated with the metal with excellent magnetic property and a body portion (See FIG. 6) is magnetized, metal coated diamond particles 20 can be fixed to the body portion 10 while being arranged thereon by means of a magnetic force between the metal coating layer 22 and the body portion 10. When the diamond particles 20 are fixed like this, the diamond particles maintain their original positions without being moved even when the body portion 10 is moved for plating or even in the course of plating. While the above description has been made for the coating metal such as Fe and Co, the magnetic metal is not limited thereto, but other proper metals may be adopted by persons with ordinary knowledge in the art to which the present invention pertains.
FIG. 6 is a view showing a state in which the diamond particles 20 coated with metal are arranged on the body portion 10 (S430).
[36] A worker coats the diamond particles 20 and arranges the diamond particles coated with the metal coating 22 on the surface of the disc type body portion 10 forming a cutting edge. At this time, in order to maintain cutting performance of the cutting tool constantly, it is preferable to arrange the diamond particles 20 at regular intervals.
[37] When the diamond particles 20 are arranged like this, as set forth before, the body portion 10 is magnetized and then the diamond particles 20 are arranged. There may be used various methods for magnetizing the body portion 10. For example, when a permanent magnet is attached to the body portion 10, the body portion 10 is magnetized by the magnetic force of the permanent magnet, having a magnetic WO 2006/123874 PCT/KR2006/001780 property. Like this, the diamond particles 20 are fixed to the body portion 10 by means of a magnetic force generated between the magnetized body portion 10 and the metal coating 22 surrounding the diamond particles20. In this way, if the diamond particles are arranged and fixed by means of a magnetic force, they are not moved even in the course of plating, thereby manufacturing a cutting tool with the diamond particles arranged at regular intervals.
[38] After the arrangement of the diamond particles 20, the worker imm-nerses the body portion 10 on which the diamond particles 20 are arranged in a plating bath 30 to electro-deposit the diamond particles 20 as shown in FIG. 7 (S450).
[39] The worker immerses the body portion 10 on which the diamond particles are arranged and a pair of metal plates 32 in the plating bath 30 filled with an electrolyte 34. Herein, the material of the metal plate 32 may be a metal to which the diamond particles 20 are intended to be electro-deposited, such as, for example, Ni, Cu, Co, and the like.
In the mean time, the electrolyte 34 is composed of a solution containing the same metal ions as the metal plate 32. When the metal ions contained in the electrolyte 34 are electro-deposited and precipitated, the metal ions are supplied to the electrolyte 34 through the electrolysis of the metal plate 32. Therefore, the electro-deposition process of the metal ions may be continued so that the plating process of the metal coated diamond particles 20 is performed.
[41] After the body portion 10 and the metal plate 32 are immersed in the plating bath the metal plate 32 is applied with a positive bias and the body portion 10 on which the diamond particles 20 are arranged is applied with a negative bias. With the application of bias, the metal ions such as Ni, Cu, Co, and the like contained in the electrolyte 34 are reduced and precipitated at the negative-biased body portion 10. The metal ions are continuously precipitated at the body portion 10 by the reduction reaction so that the diamond particles 20 arranged on the body portion 10 are bonded to the body portion 10 while being plated by the precipitated metal. Meanwhile, when t he plating of the diamond particles 20 is completed, the body portion 10 is picked out from the plating bath 30 to dry. In this case, if a permanent magnet (not shown) is attached to the body portion 10 to magnetize the same, the permanent magnet is removed and then the body portion 10 is dried.
[42] FIG. 8 is a sectional view of the cutting tool electro-deposited with the diamond particles according to the above-mentioned method. As shown in FIG. 8, the diamond particles 20 coated with metal 22 are fixed to the body portion 10 by the plating layer 24. According to the present invention, the plating is performed after the diamond particles 20 are coated with the metal coating 22 so that the thickness of the electrodeposited layer surrounding the diamond particles 20 is equal to the combination of the additions and substitutions are possible, without departing from the scope and spirit Sof the invention is disclosed in the accompanying claims.
[48] The term "comprise" and variants of the term such as "comprises" or "comprising" Sare used herein to denote the inclusion of a stated integer or stated integers but not to exclude any other integer or any other integers, unless in the context or usage an 00 exclusive interpretation of the term is required.
I[49] Any reference to publications cited in this specification is not an admission that the 0disclosures constitute common general knowledge in Australia.
IND

Claims (4)

1. A method for manufacturing a diamond cutting tool, comprising the steps of: c coating the diamond particles with metal such as iron or cobalt with excellent Smagnetic property; (-i arranging the metal coated diamond particles on a region of a steel body portion 00 intended to be used as a cutting edge; INO immersing the body portion in a plating bath filled with an electrolyte; and 00 performing the electro-deposition in such a manner that the body portion is negative- (Ni biased and a separate metal plate installed in the plating bath for plating is positive- Sbiased, thereby adhering the metal coated diamond particles to the body portion, Swherein when the metal coated diamond particles are arranged on the body portion, the diamond particles are fixed to the body portion by a magnetic force generated between the metal coating layer and the body portion through magnetization of the body portion.
2. The method as claimed in claim 1, wherein the diamond particles are arranged in multi-layer and electro-deposited.
3. The method as claimed in claim 1, wherein the diamond particles are coated with metal by means of electro-deposition or fusion welding.
4. A diamond cutting tool manufactured by the method as claimed in claims in 1, 2 or 3. DATED: 20 JANUARY 2009
AU2006248268A 2005-05-20 2006-05-12 Diamond cutting tool and manufacturing method thereof Ceased AU2006248268B9 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR10-2005-0042452 2005-05-20
KR1020050042452A KR100698537B1 (en) 2005-05-20 2005-05-20 Diamond Cutting Tool and Manufacturing Method Thereof
PCT/KR2006/001780 WO2006123874A1 (en) 2005-05-20 2006-05-12 Diamond cutting tool and manufacturing method thereof

Publications (3)

Publication Number Publication Date
AU2006248268A1 AU2006248268A1 (en) 2006-11-23
AU2006248268B2 true AU2006248268B2 (en) 2009-02-05
AU2006248268B9 AU2006248268B9 (en) 2011-04-14

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AU2006248268A Ceased AU2006248268B9 (en) 2005-05-20 2006-05-12 Diamond cutting tool and manufacturing method thereof

Country Status (7)

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US (1) US20080171175A1 (en)
EP (1) EP1883493A4 (en)
JP (1) JP2008540150A (en)
KR (1) KR100698537B1 (en)
AU (1) AU2006248268B9 (en)
NO (1) NO20076593L (en)
WO (1) WO2006123874A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5051399B2 (en) * 2009-05-01 2012-10-17 信越化学工業株式会社 Peripheral cutting blade manufacturing method and outer peripheral cutting blade manufacturing jig
US7918032B2 (en) * 2009-07-14 2011-04-05 Sullivans Usa Ruler with abrasive edge
FR2988628B1 (en) 2012-04-02 2015-02-27 Commissariat Energie Atomique METHOD AND APPARATUS FOR MANUFACTURING A CUTTING WIRE
KR20160003147U (en) 2015-03-10 2016-09-21 조승행 Diamond Cutting Tool and Manufacturing Method Thereof
KR20230101102A (en) 2021-12-29 2023-07-06 레커픽스 주식회사 Diamond Rotary Dresser Manufacturing Method to Improve Surface Finish

Citations (4)

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US5250086A (en) * 1992-03-25 1993-10-05 General Electric Company Multi-layer metal coated diamond abrasives for sintered metal bonded tools
US6238280B1 (en) * 1998-09-28 2001-05-29 Hilti Aktiengesellschaft Abrasive cutter containing diamond particles and a method for producing the cutter
KR20030004791A (en) * 2001-07-06 2003-01-15 삼성전기주식회사 Lna built-in tuner with self control function of lna
KR100477895B1 (en) * 2002-04-08 2005-03-18 한국화학연구원 Preparation of diamond tool improved durability using nanometal powder coated grit

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JP2504418B2 (en) * 1986-07-29 1996-06-05 三菱マテリアル株式会社 Grinding stone manufacturing method
US5453293A (en) * 1991-07-17 1995-09-26 Beane; Alan F. Methods of manufacturing coated particles having desired values of intrinsic properties and methods of applying the coated particles to objects
GB2263706B (en) * 1992-01-31 1995-06-07 Honda Motor Co Ltd Method of and apparatus for producing a grinder used for a grinding machine
US6890412B2 (en) * 2001-08-27 2005-05-10 Surfect Technologies, Inc. Electrodeposition apparatus and method using magnetic assistance and rotary cathode for ferrous and magnetic particles
KR100481302B1 (en) * 2003-04-09 2005-04-07 바이텍다이아몬드(주) Method for manufacturing electro-plated diamond wheel and electro-plated diamond wheel manufactured by the method, and apparatus for plating diamond wheel

Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
US5250086A (en) * 1992-03-25 1993-10-05 General Electric Company Multi-layer metal coated diamond abrasives for sintered metal bonded tools
US6238280B1 (en) * 1998-09-28 2001-05-29 Hilti Aktiengesellschaft Abrasive cutter containing diamond particles and a method for producing the cutter
KR20030004791A (en) * 2001-07-06 2003-01-15 삼성전기주식회사 Lna built-in tuner with self control function of lna
KR100477895B1 (en) * 2002-04-08 2005-03-18 한국화학연구원 Preparation of diamond tool improved durability using nanometal powder coated grit

Also Published As

Publication number Publication date
KR100698537B1 (en) 2007-03-22
WO2006123874A1 (en) 2006-11-23
AU2006248268B9 (en) 2011-04-14
NO20076593L (en) 2007-12-20
EP1883493A4 (en) 2011-04-27
JP2008540150A (en) 2008-11-20
KR20060119425A (en) 2006-11-24
EP1883493A1 (en) 2008-02-06
US20080171175A1 (en) 2008-07-17
AU2006248268A1 (en) 2006-11-23

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