EP1883493A1 - Diamond cutting tool and manufacturing method thereof - Google Patents

Diamond cutting tool and manufacturing method thereof

Info

Publication number
EP1883493A1
EP1883493A1 EP06757709A EP06757709A EP1883493A1 EP 1883493 A1 EP1883493 A1 EP 1883493A1 EP 06757709 A EP06757709 A EP 06757709A EP 06757709 A EP06757709 A EP 06757709A EP 1883493 A1 EP1883493 A1 EP 1883493A1
Authority
EP
European Patent Office
Prior art keywords
diamond particles
body portion
metal
cutting tool
diamond
Prior art date
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.)
Withdrawn
Application number
EP06757709A
Other languages
German (de)
French (fr)
Other versions
EP1883493A4 (en
Inventor
Rin Soon Park
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP1883493A1 publication Critical patent/EP1883493A1/en
Publication of EP1883493A4 publication Critical patent/EP1883493A4/en
Withdrawn legal-status Critical Current

Links

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.]

Definitions

  • 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.
  • 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.
  • FIGS. 1 to 3 show a conventional manufacturing method for cutting tools according to such electro-deposition process.
  • 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.
  • the metal ions contained in the electrolyte 5 are reduced and precipitated on the negative-biased body portion 1.
  • 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 reaction continuously.
  • the diamond particles 2 are adhered to the body portion 1 through the electro-deposited metal 7.
  • 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.
  • 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.
  • 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.
  • the metal coating the diamond particles may be iron or cobalt with excellent magnetic 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 the body portion, the diamond particles can be 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.
  • the diamond particles may be coated with metal by means of electro-deposition or fusion welding.
  • 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
  • FIG. 2 is a view showing a state in which the body portion on which the diamond particles of FIG. 1 are arranged is immersed in a plating bath
  • FIG. 3 is a sectional view of the cutting tool electro-deposited with the diamond particles according to the conventional method of manufacturing the cutting tool
  • FIG. 4 is a flow chart showing a manufacturing method for a diamond cutting tool according to a preferred embodiment of the present invention
  • FIG. 5 is a perspective view of a diamond particle coated with metal according to the present invention
  • 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
  • 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
  • FIG. 8 is a sectional view of the cutting tool electro-deposited with the diamond particles coated with metal according to the present invention
  • FIG. 9 is a sectional view showing a cutting tool according to another preferred embodiment of the present invention.
  • FIG. 4 is a flow chart showing a manufacturing method for a diamond cutting tool according to a preferred embodiment of the present invention.
  • the 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).
  • FIG. 5 is a perspective view of a diamond particle 20 coated with metal 22.
  • a worker first coats the outer surfaces of the diamond particles 20 with metal to form a metal coating layer 22 (S410).
  • S410 metal coating layer 22
  • 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 20.
  • the metal constituting the metal coating layer 22 may be a metal with excellent magnetic property, for example, iron (Fe), cobalt (Co) and the like.
  • 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.
  • 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.
  • 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).
  • 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.
  • the body portion 10 is magnetized and then the diamond particles 20 are arranged.
  • 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 20 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 20 arranged at regular intervals.
  • 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.
  • 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.
  • the electrolyte 34 is composed of a solution containing the same metal ions as the metal plate 32.
  • 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.
  • 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.
  • 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.
  • FIG. 8 is a sectional view of the cutting tool electro-deposited with the diamond particles according to the above-mentioned method.
  • the diamond particles 20 coated with metal 22 are fixed to the body portion 10 by the plating layer 24.
  • the plating is performed after the diamond particles 20 are coated with the metal coating 22 so that the thickness of the electro- deposited layer surrounding the diamond particles 20 is equal to the combination of the thicknesses of the metal coating 22 and the plating layer 24. Accordingly, the thickness of the electro-deposited layer surrounding the diamond particles 20 can be made sufficient without thickening the plating layer with a long time plating process, thereby prolong the lifetime of the cutting tool considerably.
  • FIG. 9 is a sectional view showing a cutting tool according to another preferred embodiment of the present invention. In the drawing, it is illustrated that the diamond particles 20 are electro-deposited on only one side of the body portion 10 for convenience of description.
  • the diamond particles 20 coated with the metal coating 22 are arranged in multi-layer on the body portion 10 and it is performed an electro-deposition process. If the body portion 10 is magnetized, since the metal to be coated on the diamond particles 20 has a magnetic property, it is possible to arrange the diamond particles in multi-layer by means of the magnetic force between the metal coating 22 and the body portion 10. In this way, when the diamond particles 20 are arranged in multi-layer and the plating is performed, it can be obtained a cutting tool on which the diamond particles 20 are arranged in multi-layer as shown in FIG. 9.
  • the diamond particles 20 are arranged in multi-layer so that even though the utmost upper diamond layer is worn out by the cutting work, the cutting work can be done by the next lower diamond layer. Accordingly, through the arrangement of the diamond particles in multi-layer, the lifetime of the cutting tool can be further increased.
  • the diamond particles are coated with metal and then electro-deposited with the plating so that the plating time can be reduced and the diamond particles can be securely attached to the body portion as well.
  • the diamond particles are coated with magnetic metal and the body portion is magnetized so that it is possible to arrange the metal coated diamond particles in multi-layer on the body portion by means of the magnetic force and to electro-deposit the same, thereby prolong the lifetime of the cutting tool.
  • the diamond particles are coated with magnetic metal and the body portion is magnetized so that it is possible to arrange the metal coated diamond particles on the body portion by means of the magnetic force thus to fix the same without movement in the course of the manufacturing process.

Landscapes

  • 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)

Abstract

A manufacturing method of a diamond cutting tool is characterized in that the metal coated diamond particles are arranged on a region of a steel body portion intended to be used as a cutting edge, and then adhered to the body portion through the electro-deposition whereby the manufacturing time is reduced, the diamond particles are securely adhered to the body portion, and the lifetime of the cutting tool is prolonged as well.

Description

Description
DIAMOND CUTTING TOOL AND MANUFACTURING
METHOD THEREOF
Technical Field
[1] 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
[2] 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.
[3] 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.
[4] 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.
[5] 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.
[6] 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.
[7] 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 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.
[8] 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
[9] 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.
[10] 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;
[15] 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. [18] The metal coating the diamond particles may be iron or cobalt with excellent magnetic 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 the body portion, the diamond particles can be 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. [19] In the mean time, the diamond particles may be coated with metal by means of electro-deposition or fusion welding.
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: [21] 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; [22] FIG. 2 is a view showing a state in which the body portion on which the diamond particles of FIG. 1 are arranged is immersed in a plating bath; [23] FIG. 3 is a sectional view of the cutting tool electro-deposited with the diamond particles according to the conventional method of manufacturing the cutting tool; [24] FIG. 4 is a flow chart showing a manufacturing method for a diamond cutting tool according to a preferred embodiment of the present invention; [25] FIG. 5 is a perspective view of a diamond particle coated with metal according to the present invention; [26] 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; [28] 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 [30] 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 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 20.
[34] The metal constituting the metal coating layer 22 may be a metal with excellent magnetic property, for example, iron (Fe), cobalt (Co) and the like. When the diamond particles are coated with the metal with excellent magnetic property and a body portion 10 (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.
[35] 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 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 20 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 20 arranged at regular intervals.
[38] After the arrangement of the diamond particles 20, the worker immerses 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.
[40] 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
30, 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 electro- deposited layer surrounding the diamond particles 20 is equal to the combination of the thicknesses of the metal coating 22 and the plating layer 24. Accordingly, the thickness of the electro-deposited layer surrounding the diamond particles 20 can be made sufficient without thickening the plating layer with a long time plating process, thereby prolong the lifetime of the cutting tool considerably.
[43] FIG. 9 is a sectional view showing a cutting tool according to another preferred embodiment of the present invention. In the drawing, it is illustrated that the diamond particles 20 are electro-deposited on only one side of the body portion 10 for convenience of description.
[44] Referring to FIG. 9, according to this embodiment, the diamond particles 20 coated with the metal coating 22 are arranged in multi-layer on the body portion 10 and it is performed an electro-deposition process. If the body portion 10 is magnetized, since the metal to be coated on the diamond particles 20 has a magnetic property, it is possible to arrange the diamond particles in multi-layer by means of the magnetic force between the metal coating 22 and the body portion 10. In this way, when the diamond particles 20 are arranged in multi-layer and the plating is performed, it can be obtained a cutting tool on which the diamond particles 20 are arranged in multi-layer as shown in FIG. 9. In this embodiment, the diamond particles 20 are arranged in multi-layer so that even though the utmost upper diamond layer is worn out by the cutting work, the cutting work can be done by the next lower diamond layer. Accordingly, through the arrangement of the diamond particles in multi-layer, the lifetime of the cutting tool can be further increased. Industrial Applicability
[45] As set forth above, according to a manufacturing method for diamond cutting tool, the diamond particles are coated with metal and then electro-deposited with the plating so that the plating time can be reduced and the diamond particles can be securely attached to the body portion as well.
[46] In addition, according to the present invention, the diamond particles are coated with magnetic metal and the body portion is magnetized so that it is possible to arrange the metal coated diamond particles in multi-layer on the body portion by means of the magnetic force and to electro-deposit the same, thereby prolong the lifetime of the cutting tool.
[47] In addition, according to the present invention, the diamond particles are coated with magnetic metal and the body portion is magnetized so that it is possible to arrange the metal coated diamond particles on the body portion by means of the magnetic force thus to fix the same without movement in the course of the manufacturing process.
[48] Although preferred embodiments of the present invention have been described for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.

Claims

Claims
[1] A method for manufacturing a diamond cutting tool, comprising the steps of: coating the diamond particles with metal; 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 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.
[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 metal coating the diamond particles is iron or cobalt with excellent magnetic property.
[4] The method as claimed in claim 3, 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.
[5] The method as claimed in claim 1, wherein the diamond particles are coated with metal by means of electro-deposition or fusion welding.
[6] A diamond cutting tool manufactured by the method as claimed in any one of claims 1 to 5.
EP06757709A 2005-05-20 2006-05-12 Diamond cutting tool and manufacturing method thereof Withdrawn EP1883493A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020050042452A KR100698537B1 (en) 2005-05-20 2005-05-20 Diamond cutting tool and its manufacturing method
PCT/KR2006/001780 WO2006123874A1 (en) 2005-05-20 2006-05-12 Diamond cutting tool and manufacturing method thereof

Publications (2)

Publication Number Publication Date
EP1883493A1 true EP1883493A1 (en) 2008-02-06
EP1883493A4 EP1883493A4 (en) 2011-04-27

Family

ID=37431425

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06757709A Withdrawn EP1883493A4 (en) 2005-05-20 2006-05-12 Diamond cutting tool and manufacturing method thereof

Country Status (7)

Country Link
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 (6)

* 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
KR102710203B1 (en) 2021-12-29 2024-09-26 레커픽스 주식회사 Diamond Rotary Dresser Manufacturing Method to Improve Surface Finish
CN116690442B (en) * 2023-06-08 2026-02-10 泉州华大超硬工具科技有限公司 A diamond tool and its manufacturing method

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4400937A (en) * 1982-09-29 1983-08-30 Deere & Company Control for quickly effecting displacement changes in a pump supplying fluid to primary and secondary function control valves
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
US5250086A (en) 1992-03-25 1993-10-05 General Electric Company Multi-layer metal coated diamond abrasives for sintered metal bonded tools
DE19844397A1 (en) 1998-09-28 2000-03-30 Hilti Ag Abrasive cutting bodies containing diamond particles and method for producing the cutting bodies
KR20030004791A (en) * 2001-07-06 2003-01-15 삼성전기주식회사 Lna built-in tuner with self control function of lna
WO2003018875A1 (en) * 2001-08-27 2003-03-06 Surfect Techologies, Inc. Electrodeposition apparatus and method using magnetic assistance and rotary cathode for ferrous and magnetic particles
KR100477895B1 (en) 2002-04-08 2005-03-18 한국화학연구원 Preparation of diamond tool improved durability using nanometal powder coated grit
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

Also Published As

Publication number Publication date
AU2006248268B9 (en) 2011-04-14
AU2006248268B2 (en) 2009-02-05
KR20060119425A (en) 2006-11-24
EP1883493A4 (en) 2011-04-27
US20080171175A1 (en) 2008-07-17
JP2008540150A (en) 2008-11-20
WO2006123874A1 (en) 2006-11-23
AU2006248268A1 (en) 2006-11-23
NO20076593L (en) 2007-12-20
KR100698537B1 (en) 2007-03-22

Similar Documents

Publication Publication Date Title
TWI503213B (en) Method and clamp assembly for manufacturing an outer blade cutting wheel
US11242613B2 (en) Electrodeposited, nanolaminate coatings and claddings for corrosion protection
CN103459091B (en) Super hard alloy baseplate outer circumference cutting blade and manufacturing method thereof
CN103313825B (en) Cement carbide substrate outside cutting wheel and manufacture method thereof
JP5975138B2 (en) Cemented carbide base plate outer cutting blade manufacturing method
AU2006248268B9 (en) Diamond cutting tool and manufacturing method thereof
CN102166792A (en) Diamond fret saw and manufacture method thereof
TW201328802A (en) Cemented carbide as substrate, peripheral blade cutting wheel and manufacturing method thereof
Tsyntsaru Electrodeposition of cobalt–tungsten alloys and their application for surface engineering
CN111101173A (en) Multilayer nickel plating and dehydrogenation process for neodymium iron boron permanent magnet material
CN202137859U (en) Diamond wire saw
KR20140095205A (en) Wire cutting tool comprising different kind of abrasive particles, and method of fabricating the same
KR102137792B1 (en) Method for manufacturing multi-layer electro deposition cutting tool and multi-layer electro deposition cutting tool manufactured thereby
JP3025884B1 (en) Method of manufacturing strip file
KR20020050829A (en) Ni multilayer plated Nd-Fe-B magnet and its manufacturing method
Kelly et al. Experimental study of NiFe and CoFe throughmask electrodeposition of high aspect ratio features
FI74308C (en) FOERFARANDE FOER FRAMSTAELLNING AV EN BELAEGGNING OCH EN BELAEGGNING.
JP2015037833A (en) Hard alloy baseplate outer periphery cutting blade and production method thereof
JPS63139670A (en) Grinding tool
JPH08229828A (en) Super-abrasive grain tool, and manufacture thereof
MD2560F1 (en) Process for magnetic fluid obtaining
CN102709020A (en) Magnet member
JPH08197424A (en) Machining method using wire tool, machining device using wire tool
JP2015147297A (en) Cutting blade for super hard alloy baseplate outer circumference

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20071204

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

DAX Request for extension of the european patent (deleted)
A4 Supplementary search report drawn up and despatched

Effective date: 20110329

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20111026