Title:
多結晶ダイアモンドの研磨要素
Document Type and Number:
Japanese Patent JP2006528084
Kind Code:
A
Abstract:
A polycrystalline diamond abrasive element, particularly a cutting element, comprises a table of polycrystalline diamond bonded to a substrate, particularly a cemented carbide substrate, along a non-planar interface. The non-planar interface typically has a cruciform configuration. The polycrystalline diamond has a high wear-resistance, and has a region adjacent the working surface lean in catalysing material and a region rich in catalysing material. The region lean in catalysing material extends to a depth of 40 to 90 microns, which is much shallower than in the prior art. Notwithstanding the shallow region lean in catalysing material, the polycrystalline diamond cutters have a wear resistance, impact strength and cutter life comparable to that of prior art cutters, but requiring only 20% of the treatment times of the prior art cutters.
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Inventors:
Lancaster, bullet
Roberts, Bronwin Annette
Hoodie,imran
Achilles, Royderick
Roberts, Bronwin Annette
Hoodie,imran
Achilles, Royderick
Application Number:
JP2006530699A
Publication Date:
December 14, 2006
Filing Date:
May 27, 2004
Export Citation:
Assignee:
Element Six (PTW) Limited
International Classes:
B24D3/00; B24D7/00; B24D7/18; B24D18/00; B24D99/00; E21B10/56; E21B10/573
Domestic Patent References:
| JPH054102A | 1993-01-14 | |||
| JPS61270496A | 1986-11-29 | |||
| JP2000096972A | 2000-04-04 |
Foreign References:
| US5351772A | 1994-10-04 |
Attorney, Agent or Firm:
Ippei Watanabe
Koji Kikawa
Takeshi Higuchi
Koji Kikawa
Takeshi Higuchi