Composite polycrystalline diamond

Abrasive tool making process – material – or composition – With inorganic material – Metal or metal oxide

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51293, B24D 302

Patent

active

045251789

ABSTRACT:
A composite material is described which includes a mixture of individual diamond crystals and pieces of precemented carbide. The mixture is heated and pressurized to create intercrystalline bonds between the diamond crystals and chemical bonds between the diamond crystals and the precemented carbide pieces. The resulting composite polycrystalline diamond body exhibits excellent wear characteristics and impact resistance.

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patent: 4303442 (1981-12-01), Hara
patent: 4370149 (1983-01-01), Hara
patent: 4411672 (1983-10-01), Ishizuka

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