KR101591994B1 - Fabrication apparatus for diamond segment and Manufacturing method for diamond segment, diamond tool - Google Patents

Fabrication apparatus for diamond segment and Manufacturing method for diamond segment, diamond tool Download PDF

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Publication number
KR101591994B1
KR101591994B1 KR1020150084892A KR20150084892A KR101591994B1 KR 101591994 B1 KR101591994 B1 KR 101591994B1 KR 1020150084892 A KR1020150084892 A KR 1020150084892A KR 20150084892 A KR20150084892 A KR 20150084892A KR 101591994 B1 KR101591994 B1 KR 101591994B1
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KR
South Korea
Prior art keywords
powder
punch
blank
diamond
mold
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KR1020150084892A
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Korean (ko)
Inventor
박광민
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에스티이엠 주식회사
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Priority to KR1020150084892A priority Critical patent/KR101591994B1/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
    • 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
    • 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
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/12—Both compacting and sintering
    • 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
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/12—Both compacting and sintering
    • B22F3/16—Both compacting and sintering in successive or repeated steps
    • 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
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • B22F2005/001—Cutting tools, earth boring or grinding tool other than table ware

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Materials Engineering (AREA)
  • Powder Metallurgy (AREA)

Abstract

The present invention relates to an apparatus and a method for manufacturing a diamond segment, and a diamond tool. The apparatus for manufacturing a diamond segment comprises: a forming frame having a forming space penetrating therethrough; a powder supply unit to supply powder to the forming space; a punch unit which is disposed on one side of the forming frame and supports the powder; a diamond supply unit to arrange diamonds in the powder; a compacting unit which is disposed on the other side of the forming frame and compacts the powder; and a main operational unit to support the punch unit.

Description

Technical Field [0001] The present invention relates to a diamond segment manufacturing apparatus and a diamond segment manufacturing method,

The present invention relates to an apparatus for manufacturing a diamond segment and a method for manufacturing a diamond segment, and a diamond tool.

Diamond tools include diamond dressers, diamond bite tools, diamond dice tools, diamond drill bits, diamond wheels, diamond glasses, Knives, and diamond needles. All of which have excellent hardness, abrasion degree, and low coefficient of thermal expansion of diamonds for industrial production, contributing to the improvement of quality by improving the precision of industrial products.

Such a diamond tool includes a shank coupled to a rotation shaft of a motor, and a plurality of segments arranged in a plurality of diamond particles and coupled to an outer circumferential surface of the sink. Sinks and segments are combined in a solder manner.

There is a problem that a segment is dislocated from the sink due to an increase in load due to a large frictional resistance during high-speed rotation due to weak bonding strength.

Registration Utility Model No. 20-0280067 (Jun. 17, 2002) Registration No. 10-0502573 (July 12, 2005)

The present invention provides a technique capable of tightly bonding a tip and a blank by simultaneously sintering the tip and blank in a molding space.

A diamond segment manufacturing apparatus according to an embodiment of the present invention includes a mold frame having a molding space penetrating the inside thereof, a powder supply unit for supplying powder to the molding space, a punch unit disposed at one side of the mold, A diamond supplying part for arranging diamond in the powder, a compaction part disposed on the other side of the mold and for supporting the powder, and a main operating part for supporting the punching unit.

The punch unit includes a noise punch disposed at one side of the molding space and a blank punch disposed at the other side of the molding space, and the noise punch and the blank punch can be moved up and down.

And a stopper for supporting the blank punch when the main operation unit is operated.

Wherein the powder supply unit is arranged to be operable on one side of the mold and is operable to supply the first powder onto the noise punch and to operate on the other side of the mold, And a second powder supply unit for supplying the powder.

The diamond supply unit may arrange diamonds on the first powder.

The second powder supply unit includes a quantitative part having a quantitative hole for supplying a second amount of powder onto the blank punch and a second powder accommodating part movably disposed in the quantitative part and supplying the second powder with the quantitative hole can do.

A method of manufacturing a diamond segment according to an embodiment of the present invention includes the steps of (a) aligning an upper surface of a mold with an upper surface of a noise punch and a blank punch, (b) lowering the noise punch, (D) arranging the diamond on the first powder, (d) scraping the diamond and the first powder, (e) repeating the steps (b), (c) (B) lowering the blank punch, (g) supplying a second powder onto the blank punch, (h) disposing a compaction unit on the first powder and the second powder, (i) simultaneously pressing the first powder and the second powder in the direction of the compaction portion by simultaneously raising the noise punch and the blank punch to sinter the blank punch, Moves and step (l) the compaction unit and to remove the sintered body in the mold includes the step of completing the diamond segments.

The diamond segment manufacturing method may further include (j) supporting the blank punch with the stopper before the step (k).

After the step (e), the upper surface of the blank punch may be further away from the upper surface of the mold than the upper surface of the noise punch.

A diamond tool according to an embodiment of the present invention includes a segment made of the above-mentioned manufacturing method and including a tip and a blank, and a sink in which the segment is arranged along an outer periphery.

According to the embodiment of the present invention, the first powder and the second powder are introduced into the molding space, and the first powder and the second powder are simultaneously compression sintered, so that the first powder and the second powder are respectively sintered, The process can be simplified as compared with the method of connecting using Accordingly, the manufacturing process can be shortened, and the manufacturing speed can be shortened and the manufacturing cost can be reduced.

According to the embodiment of the present invention, since the first powder and the second powder are compression-sintered in the molding space, the boundary portions of the first powder and the second powder can be connected to each other. The tip made of the first powder and the diamond and the blank being the second powder can be firmly connected.

1 is a schematic view of an apparatus for manufacturing a diamond segment according to an embodiment of the present invention;
2 is a block diagram of a method of manufacturing a diamond segment according to one embodiment of the present invention.
Figs. 3 to 14 are diagrams showing a process of manufacturing the diamond segment shown in Fig. 2. Fig.
15 is a front view of a diamond tool according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Like parts are designated with like reference numerals throughout the specification.

A diamond segment manufacturing apparatus according to an embodiment of the present invention will now be described with reference to FIG.

1 is a schematic view of an apparatus for manufacturing a diamond segment according to an embodiment of the present invention.

1, the diamond segment manufacturing apparatus 1 according to the present embodiment includes a mold 10, a powder supply unit 20, a punch unit 30, a stopper 40, a diamond supply unit 50, (60) and a main operation portion (70).

The mold 10 is made of a diamond segment, and has a molding space 11 penetrating vertically therein. An upper surface of the mold 10 is formed in a plane, and the powder supply unit 20 is disposed so as to be slidable.

The powder supply unit 20 supplies powder to the molding space 11 and includes a first powder supply unit 21 and a second powder supply unit 22. [

The first powder supply unit 21 is disposed on one side of the upper surface of the mold 10 and includes a first housing member 211 and a first actuator 212. The first housing member 211 is disposed so as to be movable on the upper surface of the mold 10 and has a first housing space 211a in which a first powder such as nickel or cobalt is received. The first accommodating space 211a may be connected to the molding space 11 or out of the molding space 11 depending on the moving direction of the first accommodating member 211. [

The first actuator 212 is disposed on the upper surface of the mold 10 and is connected to the first housing member 211. The first actuator 212 moves the first housing member 211, and uses oil or compressed air as a working fluid.

The second powder supply unit 22 is disposed on the other side of the upper surface of the mold 10 and includes a metering unit 221, a powder receiving unit 222 and a regulating unit 223.

The quantification part 221 quantitatively supplies a second powder such as iron to the molding space 11 and includes a quantification mold 221a and a quantitative actuator 221c.

The metering mold 221a is arranged movably in the mold 10, and a metering hole 221b is formed in the inside of the metering mold 221a. The cross-sectional area of the metering hole 221b decreases from the upper side to the lower side. The quantitative hole 221b may be connected to the molding space 11 or deviate from the molding space 11 in accordance with the moving direction of the quantitative die 221a.

The metering actuator 221c is disposed on the upper surface of the mold 10 and connected to the metering mold 221a. The metering actuator 221c moves the metering mold 221a and uses oil or compressed air as the working fluid.

The powder accommodating portion 222 is disposed on the quantitative portion 221 and includes a second accommodating member 222a and a second actuator 222c.

The second housing member 222a is movably disposed on the upper surface of the metering mold 221a, and a second accommodation space 222b is formed through the upper portion of the metering mold 221a. The second accommodating space 222b may be connected to the quantitative hole 221b or may escape from the quantitative hole 221b in accordance with the moving direction of the second accommodating member 222a.

The second actuator 222c is disposed on the upper surface of the metering frame 221a and is connected to the second housing member 222a. The second actuator 222c moves the metering mold 221a and uses oil or compressed air as the working fluid.

The adjusting portion 223 is disposed between the quantifying portion 221 and the powder receiving portion 222 and controls the amount of movement of the second powder flowing into the quantitative hole 221b in the second receiving space 222b, 2 powder to flow into the quantitative hole 221b from the second accommodation space 222b. The amount of the second powder may vary depending on the size of the segment.

The punch unit 30 is disposed on the lower side of the mold 10 and supports the first powder and the second powder that have flowed into the molding space 11 and includes a noise punch 31 and a blank punch 32.

The noise punch 31 can be raised and lowered, and the upper side is disposed on one side of the molding space 11. The noise punch 31 supports the first powder. The noise punch 31 can descend stepwise when the first powder is supported.

The blank punch 32 includes a blank punch member 321 and a blank actuator 322 for supporting the second powder.

The blank punch member 321 can move up and down, is in contact with the noise punch 31, and is positioned on the other side of the molding space 11 to support the second powder.

The blank actuator 322 supports the blank punch member 321 and moves the blank punch member 321 and uses oil or compressed air as the working fluid.

The stopper 40 is adjacent to the blank punch and is connected to the stopper actuator 41. By the operation of the stopper actuator 41, the stopper 40 can be inserted or released between the blank punch member 321 and the blank actuator 322. The stopper 40 inserted between the blank punch member 321 and the blank actuator 322 supports the blank punch member 321.

The diamond supply part 50 is movably arranged on the upper side of the mold 10 and regularly arranges diamonds in the first powder. The diamonds may be arranged at equal intervals in the horizontal and vertical directions.

The compaction unit 60 is arranged to be movable on the upper side of the mold 10. A compaction actuator 61 is connected to the upper surface of the compaction unit 60 and a lower surface is formed in a planar shape. The lower surface of the compaction portion 60 can be inserted into the molding space 11 or abut on the upper surface of the mold 10. The compaction unit 60 compiles the first powder and the diamond. So that the diamond can flow into the first powder.

On the other hand, the compaction unit 60 can block the molding space 11 in a state where the first powder, the second powder, and the diamond are located in the molding space 11.

The main operation portion 70 supports the punch unit 30, and moves the punch unit 30 up and down. The stopper 40 can be inserted between the blank punch member 321 and the blank actuator 322 when the main operation portion 70 is operated. Here, the main operation portion 70 uses hydraulic pressure or compressed air as the working fluid, and its capacity is larger than the capacity of the blank actuator 322. [

Next, a method of manufacturing a diamond segment will be described with reference to Figs. 2 to 14. Fig.

2, a method of manufacturing a diamond segment includes the steps of: (a): matching the upper surface of a mold with the upper surface of a noise punch and blank punch, (b) lowering a noise punch, (C): arranging the diamond on the first powder; (d) repeating steps (d) and (d): densifying the diamond and the first powder; (G): supplying a second powder onto a blank punch; (h) disposing a compaction part on the first powder and the second powder; (i) (J) elevating the blank punch to compress the second powder, (j) supporting the blank punch with a stopper, (k): simultaneously raising the noise punch and the blank punch to compose the first powder and the second powder (1): a step of pressing the compaction part And separating the sintered body from the mold to complete the diamond segment.

Prior to manufacturing the diamond segments, the upper surface of the mold 10, the upper surface of the noise punch 31, and the upper surface of the blank punch member 321 are located on the same plane as shown in Fig. That is, the noise punch 31 and the upper side of the blank punch member 321 are located in the molding space 11. [

Referring to FIG. 3, the noise punch 31 is lowered so that a part of one side of the molding space 11 is received. The degree of descent of the noise punch 31 may vary according to the standard of the diamond segment (step (a)).

Referring to FIG. 4, the first actuator 212 is driven to advance the first housing member 211 in a state in which the first powder is housed in the first housing space 211a. The first accommodation space 211a is connected to one side of the molding space 11. At this time, the first powder is firstly introduced into one side of the molding space 11, and the upper surface of the noise punch 31 supports the first powder. The first powder introduced into the molding space 11 is brought into contact with the peripheral surface of the molding space 11 and the outer surface of the blank punch member 321. When the insertion of the first powder is completed, the first housing member 211 can be retracted (step (b)).

Referring to FIG. 5, the diamond feeder 50 contacts the upper surface of the mold 10, and regularly arranges diamonds in the longitudinal direction and the transverse direction on the first powder. At this time, the diamond is placed on the first powder (step (c)).

Referring to FIG. 6, the compaction unit 60 is lowered to press the diamond and the first powder toward the noise punch 31 to compose the diamond and the first powder. The compaction of the compaction unit 60 allows the diamond to flow into the first powder. The first powder can also be compressed. When compaction of the first powder and the diamond is completed, the compaction unit 60 is raised (step (d)).

7, the steps of (a), (b), (c), and (d) are repeatedly carried out to form the first powder and the diamond into a plurality of layers in the molding space 11. A tip of the segment is formed in the molding space (11). The tips of the first powder and the diamond of each layer are held in the first pressed state by the compaction unit 60 (step (e)).

Referring to Fig. 8, the blank punch member 321 is lowered. And the other side of the molding space 11 through which the second powder can flow into the upper side of the blank punch member 321 is exposed. The upper surface of the blank punch member 321 is further away from the upper surface of the mold 10 than the upper surface of the noise punch 31. This may vary depending on the cross-sectional area of the tip and the compressive strength (step (f)).

9, the quantitative portion 221 of the second powder supply portion 22 is moved in a state in which the second powder is supplied to the quantitative hole 221b through the second accommodation space 222b in a fixed amount, Is connected to the other side of the molding space 11. The second powder of the quantitative hole 221b is introduced into the molding space 11 and the blank punch member 321 supports the second powder (step (g)).

Referring to FIG. 10, the compaction unit 60 is lowered to bring the lower surface of the compaction unit 60 into contact with the first powder, the diamond, and the second powder. That is, the molding space 11 is closed using the compaction unit 60 (step (h)).

Referring to FIG. 11, the blank actuator 322 is operated to raise the blank punch member 321. The blank punch member 321 presses the second powder in the direction of the compaction portion 60 to primarily compress the powder. The second powder can be formed to have the same thickness as the tip by the pressurization of the blank punch member 321. [ The second powder is not exposed to the outside of the molding space 11 because the compaction portion 60 blocks the molding space 11 when the blank punch member 321 is pressed. The pressurized second powder penetrates into the first powder, and the first powder can penetrate into the second powder. The boundary portion between the first powder and the second powder may be intermeshed with each other (step (i)).

12, the stopper 40 is positioned between the blank punch member 321 and the blank actuator 322 (step (j)). However, step (j) may be omitted.

Referring to Fig. 13, the noise punch 31 and the blank punch member 321 are simultaneously raised by using the main operation portion 70. Fig. The noise punch 31 and the blank punch member 321 press the first powder and the second powder toward the compaction portion 60. The first powder and the second powder in the molding space 11 are secondarily pressed and sintered and the first powder and the second powder are integrated with each other as the boundary portions of the first powder and the second powder cross each other (k) step).

14, the sintered body 500 (hereinafter, referred to as a segment) sintered in the step (k) is raised from the molding space 11 by raising the compaction portion 60 and raising the main operation portion 70 Out. Thus, the segment 520 can be manufactured without the separation of the blank 520 and the segment 510.

Since the tip 500 and the blank portion are simultaneously sintered in one apparatus, the processing can be facilitated and the manufacturing process can be minimized.

The fabricated segment 500 may be arranged along the outer circumferential surface of the sink 600 as shown in FIG. At this time, the diamond tool 700 can be manufactured by laser welding the blank 510 to the sink 600.

The segment 500 is connected to the sink 600 by the blank 510 so that the segment 500 does not easily fall off the sink 600 even if the diamond tool 700 rotates at a high speed. Further, since the workpiece can be precisely processed, the workability of the workpiece can be improved.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, Of the right.

1: Segment manufacturing apparatus 10:
11: Molding space 20: Powder supply unit
21: first powder supply unit 211: first housing member
211a: first accommodation space 212: first actuator
22: second powder supply unit 221:
221a: Quantification frame 221b: Quantitative hole
221c: Quantitative actuator 222: Powder receiving part
222a: second housing member 222b: second housing space
222c: second actuator 223:
30: punch unit 31: noise punch
32: Blank punch 321: Blank punch member
322: Blank actuator 40: Stopper
41: Stopper actuator 50: Diamond supply part
60: Compaction unit 61: Compaction actuator
70: main operation part 700: diamond tool
500: segment 510: blank
520: Tip 600: Sink

Claims (10)

A mold having a molding space penetrating the inside thereof,
A powder supply unit for supplying powder to the molding space,
A punch unit disposed at one side of the mold and supporting the powder,
A diamond supply part for arranging diamonds in the powder,
A compaction part which is disposed on the other side of the mold and holds the powder,
And a main operation portion for supporting the punch unit,
Wherein the punch unit includes a noise punch disposed on one side of the forming space and capable of being raised and lowered and a blank punch disposed on the other side of the forming space,
The main operation unit simultaneously elevates and lowers the blank punch member of the blank punch by the blank actuator provided at the upper part while simultaneously raising and lowering the noise punch and the blank punch,
Wherein the stopper is provided so that the rod of the blank actuator can be lowered by the thickness of the stopper inserted and inserted between the blank punch member and the blank actuator so as to support the blank punch during operation of the main operation unit,
Wherein the powder supply unit comprises a first powder supply unit arranged to be operable on one side of the mold and supplying a first powder onto the noise punch, and a second powder supply unit arranged to be operable on the other side of the mold, And a second powder supply unit for supplying a second powder, wherein the second powder supply unit includes a quantitative part having a quantitative hole for supplying a predetermined amount of second powder onto the blank punch, a movable part disposed movably on the quantitative part, A second powder accommodating portion in which the second accommodating space is formed to supply the second powder alone, and a second powder accommodating portion disposed between the quantifying portion and the second powder accommodating portion, And a controller for controlling the amount of movement of the powder. delete delete delete The method of claim 1,
And the diamond supply unit arranges the diamond on the first powder. delete (a) matching the upper surface of the formwork with the upper surface of the noise punch and the blank punch,
(b) lowering the noise punch and supplying the first powder onto the noise punch,
(c) arranging the diamond on the first powder,
(d) grinding the diamond and the first powder,
(e) repeating the steps (b), (c), and (d)
(f) lowering the blank punch,
(g) supplying a second powder onto the blank punch,
(h) disposing a compaction portion on the first powder and the second powder,
(i) compressing the second powder by raising the blank punch, causing the pressed second powder to penetrate into the first powder, and causing the first powder to penetrate into the second powder, The first powder and the second powder have a shape in which they are engaged with each other,
(j) holding the blank punch with the stopper so that the rod of the blank actuator can be lowered by a thickness of the stopper inserted and inserted between the blank punch member and the blank actuator so that the blank punch can be supported when the main operation unit is operated; ,
(k) simultaneously pressing the first powder and the second powder in the direction of the compaction portion by squeezing the noise punch and the blank punch simultaneously, and
(1) moving the compaction part and separating the sintered body from the mold to complete the diamond segment
≪ / RTI > delete 8. The method of claim 7,
After step (e), the upper surface of the blank punch is further away from the upper surface of the mold than the upper surface of the noise punch. A method for manufacturing a semiconductor device comprising the steps of: preparing a segment comprising a tip and a blank;
Wherein the segments are arranged along an outer perimeter,
The diamond tool comprising.
KR1020150084892A 2015-06-16 2015-06-16 Fabrication apparatus for diamond segment and Manufacturing method for diamond segment, diamond tool KR101591994B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190012755A (en) * 2017-07-28 2019-02-11 이성목 Encapsulating segments for premium diamond tools resistance sintering heat treatment system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3574191B2 (en) * 1994-11-07 2004-10-06 本田技研工業株式会社 Method for producing molded body for multilayer sintered parts
KR101234572B1 (en) * 2010-11-04 2013-02-19 이화다이아몬드공업 주식회사 Diamond Tool and Method for Manufacturing the Diamond Tool
KR101267722B1 (en) * 2011-06-02 2013-05-27 김창식 Apparatus for making diamond cutting tip

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3574191B2 (en) * 1994-11-07 2004-10-06 本田技研工業株式会社 Method for producing molded body for multilayer sintered parts
KR101234572B1 (en) * 2010-11-04 2013-02-19 이화다이아몬드공업 주식회사 Diamond Tool and Method for Manufacturing the Diamond Tool
KR101267722B1 (en) * 2011-06-02 2013-05-27 김창식 Apparatus for making diamond cutting tip

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190012755A (en) * 2017-07-28 2019-02-11 이성목 Encapsulating segments for premium diamond tools resistance sintering heat treatment system
KR102206986B1 (en) * 2017-07-28 2021-01-22 이성목 Encapsulating segments for premium diamond tools resistance sintering heat treatment system

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