EP0352093B1 - Schleifendes Schneiden von ultraharten Steinen - Google Patents

Schleifendes Schneiden von ultraharten Steinen Download PDF

Info

Publication number
EP0352093B1
EP0352093B1 EP89307317A EP89307317A EP0352093B1 EP 0352093 B1 EP0352093 B1 EP 0352093B1 EP 89307317 A EP89307317 A EP 89307317A EP 89307317 A EP89307317 A EP 89307317A EP 0352093 B1 EP0352093 B1 EP 0352093B1
Authority
EP
European Patent Office
Prior art keywords
diamond
stone
abrading
compact
cutting
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.)
Expired - Lifetime
Application number
EP89307317A
Other languages
English (en)
French (fr)
Other versions
EP0352093A2 (de
EP0352093A3 (de
Inventor
Robert Charles Burns
Charlie Maurice Levitt
Gabriel Shraga Tolkowsky
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.)
De Beers Industrial Diamond Division Pty Ltd
Original Assignee
De Beers Industrial Diamond Division Pty Ltd
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 De Beers Industrial Diamond Division Pty Ltd filed Critical De Beers Industrial Diamond Division Pty Ltd
Publication of EP0352093A2 publication Critical patent/EP0352093A2/de
Publication of EP0352093A3 publication Critical patent/EP0352093A3/de
Application granted granted Critical
Publication of EP0352093B1 publication Critical patent/EP0352093B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D5/00—Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor
    • B28D5/02—Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor by rotary tools, e.g. drills
    • B28D5/022—Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor by rotary tools, e.g. drills by cutting with discs or wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D5/00—Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor

Definitions

  • This invention relates to the abrading of diamond stones.
  • Diamond gem stones may be cut into a variety of shapes and sizes depending on the applications to which they are to be put. For example, thin slivers of diamond may be cut from a gem stone diamond for use as surgical blades.
  • the cutting tool which is generally used is a phosphor-bronze disc having fine diamond particles embedded in a peripheral cutting edge. A limitation of this tool is that cutting can only be effected along certain soft planes of the diamond.
  • EP-A-0 208 414 discloses a composite diamond abrasive compact comprising a thermally stable diamond compact comprising bonded diamond forming a coherent, skeletal mass and a second phase, which compact is bonded directly to a cemented carbide substrate.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)

Claims (3)

  1. Verwendung eines Diamantpressteils in der Form einer Scheibe, die eine Schneidkante an ihrem Umfang hat und um die Längsachse der Scheibe drehbar ist, zum Schneiden eines Diamantsteines oder zur Schnittfugenherstellung an einem Diamantstein.
  2. Verwendung gemäß Anspruch 1, wobei das Diamantpressteil bei einer Temperatur von 1200 °C in einer inerten oder nicht oxidierenden Atmosphäre thermisch stabil ist.
  3. Verwendung gemäß Anspruch 1 oder 2, wobei die Schneidkante eine Dicke von 0,5 bis 1 mm hat.
EP89307317A 1988-07-20 1989-07-19 Schleifendes Schneiden von ultraharten Steinen Expired - Lifetime EP0352093B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA885245 1988-07-20
ZA885245 1988-07-20

Publications (3)

Publication Number Publication Date
EP0352093A2 EP0352093A2 (de) 1990-01-24
EP0352093A3 EP0352093A3 (de) 1991-04-24
EP0352093B1 true EP0352093B1 (de) 1995-01-25

Family

ID=25579341

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89307317A Expired - Lifetime EP0352093B1 (de) 1988-07-20 1989-07-19 Schleifendes Schneiden von ultraharten Steinen

Country Status (2)

Country Link
EP (1) EP0352093B1 (de)
IL (1) IL90976A0 (de)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU526640A1 (ru) * 1974-07-30 1976-08-30 5-й Государственный подшипниковый завод Композици дл пропитки абразивных кругов из эльбора
GB2078572B (en) * 1980-06-25 1983-07-13 Gersan Ets Kerving
ATE34108T1 (de) * 1982-12-21 1988-05-15 De Beers Ind Diamond Schleifpresskoerper und verfahren zu ihrer herstellung.
US4643741A (en) * 1984-12-14 1987-02-17 Hongchang Yu Thermostable polycrystalline diamond body, method and mold for producing same
IE58714B1 (en) * 1985-06-07 1993-11-03 De Beers Ind Diamond Thermally stable diamond abrasive compact body
JP2672136B2 (ja) * 1987-03-23 1997-11-05 ザ・オーストラリアン・ナショナル・ユニバーシティ ダイヤモンドコンパクト

Also Published As

Publication number Publication date
EP0352093A2 (de) 1990-01-24
IL90976A0 (en) 1990-02-09
EP0352093A3 (de) 1991-04-24

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