(19)
(11) EP 0 865 876 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
15.03.2000 Bulletin 2000/11

(43) Date of publication A2:
23.09.1998 Bulletin 1998/39

(21) Application number: 98301942.3

(22) Date of filing: 16.03.1998
(51) International Patent Classification (IPC)7: B24D 3/08, B24D 17/00, B24B 7/28, B27B 33/02, B27G 15/00
(84) Designated Contracting States:
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 17.03.1997 ZA 9702281

(71) Applicant: DE BEERS INDUSTRIAL DIAMOND DIVISION (PROPRIETARY) LIMITED
Johannesburg (ZA)

(72) Inventors:
  • Tank, Klaus
    Essexwold, Johannesburg (ZA)
  • Fries, Robert
    Essexwold, Johannesburg (ZA)
  • Eckert, Jurgen Dietrich
    Berario, Johannesburg (ZA)

(74) Representative: Jones, Alan John et al
CARPMAELS & RANSFORD 43 Bloomsbury Square
London, WC1A 2RA
London, WC1A 2RA (GB)

   


(54) Abrading method


(57) A diamond abrasive compact is used for abrading a workpiece in a corrosive environment. The invention has particular application to abrading wood products which contain resins or organic binders. The diamond abrasive compact is characterised by a second phase which comprises chromium and nickel.





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