Braze material for an attack tool

Details Braze material for an attack tool Braze material for an attack tool

2008-03-25

2008-03-25

Bagnell, David (Department: 3676)

Boring or penetrating the earth

Bit or bit element

Specific or diverse material

C175S425000, C175S434000, C299S113000

Reexamination Certificate

active

07347292

ABSTRACT:
In one aspect of the invention, a tool has a wear-resistant base suitable for attachment to a driving mechanism and also a hard tip attached to an interfacial surface of the base. The tip has a first cemented metal carbide segment bonded to a superhard material at a non-planar interface. The tip has a height between 4 and 10 mm and also has a curved working surface opposite the interfacial surface. A volume of the superhard material is about 75% to 150% of a volume of the first cemented metal carbide segment.

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Chaturvedi et al., Diffusion Brazing of Cost Inconel 738 Superalloy, Sep. 2005, Journal of Materials Online (http://www.azom.com/details.asp?ArticleID=2995).

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