Attack tool insert with polycrystalline diamond layer

Details Attack tool insert with polycrystalline diamond layer Attack tool insert with polycrystalline diamond layer

1991-06-14

1992-11-10

Bagnell, David J.

Boring or penetrating the earth

Bit or bit element

Specific or diverse material

51295, 299 79, E21B 1056, E21C 3518

Patent

active

051616270

ABSTRACT:
An insert for mining attack tools comprising a body portion having a longitudinal axis with a head end portion extending outwardly from one end thereof, the body portion having an endless side wall and being sized and shaped for insertion into a socket of an attack tool such that the head end portion extends outwardly from the attack tool for engaging a surface to be mined, the head end portion having a rounded tip end surface portion and an adjacent annular tapered surface portion extending from the endless side wall of the body portion to the tip end portion, and a layer of polycrystalline diamond compact attached to the head end portion of the insert.

REFERENCES:
patent: 4604106 (1986-08-01), Hall et al.
patent: 4694918 (1987-09-01), Hall
patent: 4811801 (1989-03-01), Salesky et al.
Kennametal Brochure, "U84HDLR Bits", Jun. 1989.
VR Wesson Catalog, "Mining Bits", Jan. 1967, p. 4.

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