Stock material or miscellaneous articles – All metal or with adjacent metals – Component of composite having metal continuous phase...
Patent
1978-03-28
1980-09-23
Schafer, Richard E.
Stock material or miscellaneous articles
All metal or with adjacent metals
Component of composite having metal continuous phase...
51307, 51309, 75231, 75243, 75244, 428550, 428553, 428564, 428565, 428566, C22C 300, B24D 300
Patent
active
042243807
ABSTRACT:
In one embodiment, a compact for tools, such as cutting, drilling and shaping tools, consists essentially of self-bonded abrasive particles. The bonded particles define a substantially continuous interconnected network of pores, dispersed throughout the compact. The method for making such a compact comprises the steps of bonding a mass of abrasive particles, aided by a sintering aid material, under high temperatures and pressures (HP/HT) to form an abrasive body comprised of said particles in a self-bonded form and said material infiltrated throughout the body. The body is then treated to remove substantially all infiltrated material, thereby to produce a compact consisting essentially of the self-bonded abrasive particles. In another embodiment, a composite compact which is made in a similar manner to the first embodiment consists essentially of a layer of self-bonded abrasive particle and a substrate layer (preferably of cemented carbide) bonded to the abrasive particle layer.
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Bovenkerk Harold P.
Gigl Paul D.
General Electric Company
Schafer Richard E.
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