Abrasive compacts

Details Abrasive compacts Abrasive compacts

1984-06-21

1986-02-25

Lieberman, Paul

Abrasive tool making process, material, or composition

With inorganic material

Metal or metal oxide

51308, B24D 302

Patent

active

045727228

ABSTRACT:
In a method of removing second phase from an abrasive compact, the invention provides the improvement of forming a hole in the compact prior to or during the removal step. The compact is typically a diamond compact having a cobalt second phase. The preferred removal method is by leaching using as a leach medium hydrochloric acid in the presence of a platinum group metal catalyst.

REFERENCES:
patent: 3136615 (1964-06-01), Bovenkerk et al.
patent: 3141746 (1964-07-01), De Lai
patent: 3233988 (1966-02-01), Wentrof, Jr. et al.
patent: 3743489 (1973-07-01), Wentrof, Jr. et al.
patent: 3767371 (1973-10-01), Wentrof, Jr. et al.
patent: 4224380 (1980-09-01), Bovenkerk et al.
patent: 4389465 (1983-06-01), Nakai et al.

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