METHOD FOR GRINDING WORK PIECE IN CORROSIVE ENVIRONMENT

Title:

METHOD FOR GRINDING WORK PIECE IN CORROSIVE ENVIRONMENT

Document Type and Number:

Japanese Patent JPH10277949

Kind Code:

A

Abstract:

To improve the corrosion resistance by forming the diamond grinding molded body of the diamond polycrystalline lump having a second phases containing chromium and nickel, and setting the diamond content in the molded body to be not less than the prescribed value.

A diamond grinding molded body includes a second phase of chromium and nickel. A volumetric ratio of chromium metal and nickel metal is 10:90-25:75. In the second phase, chromium and nickel are present in the metal mode, the carbide mode and/or the intermetallic compound mode. A cutting point or a cutting edge provided on the molded body is advanced to a work piece through the grinding effect to perform the grinding work including the cutting, drilling and grinding. The diamond grinding molded body can thus demonstrate the excellent corrosion resistance under the environment where the binder and/or the corrosive cleaning chemical is present.

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Inventors:

TANK KLAUS
FRIES ROBERT
ECKERT JURGEN DIETRICH

Application Number:

JP6717798A

Publication Date:

October 20, 1998

Filing Date:

March 17, 1998

Export Citation:

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Assignee:

DE BEERS IND DIAMOND

International Classes:

B24B19/24; B24D3/08; B24D99/00; B24D3/10; C09K3/14; C22C26/00; (IPC1-7): B24D3/10; B24D17/00; C09K3/14

Attorney, Agent or Firm:

Akira Asamura (3 outside)

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