Hybrid diamond insert platform locator and retention method

Details Hybrid diamond insert platform locator and retention method Hybrid diamond insert platform locator and retention method

1980-06-19

1982-11-16

Pate, III, William F.

Boring or penetrating the earth

Bit or bit element

Magnetized or with magnet

175336, 175410, E21B 936

Patent

active

043591124

ABSTRACT:
This concept discloses a new technique which uses brazing or diffusion bonding methods to attach a diamond disk to a wedge-shaped steel support platform on a hybrid type of bit. The invention is primarily concerned with the attachment of the innermost diamond cutting disk on the wedge-shaped drag bit face portion of the hybrid bit. It is particularly difficult to secure any kind of cutting structure to the innermost portion of a rock bit because of the lack of material available to secure the cutting structure to the drag bit face. Space limitations on the drag bit face prevent the use of conventional interference fit diamond insert studs for the innermost cutters.

REFERENCES:
patent: 4244432 (1981-01-01), Rowley

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