Cutting tool for a mining machine

Details Cutting tool for a mining machine Cutting tool for a mining machine

1987-12-18

1989-11-14

Dang, Hoang C.

Mining or in situ disintegration of hard material

Cutter tooth or tooth head

175329, 175410, 175413, E21C 3518, E21B 1046

Patent

active

048802786

ABSTRACT:
A cutting tool for a mining machine comprises a holding lug for connecting the tool to the mining machine, and a tool component. The tool component comprises a cemented carbide stud having a bottom portion, a top conical portion in which is provided a top recess and a central portion spacing the top portion from the bottom portion. The bottom portion and the whole of the central portion are secured within a socket formed in one end of the holding lug. The top conical portion lies wholly within the space bounded by an imaginary upward continuation of the upper edge of the end of the holding lug. The tool component also includes a composite abrasive compact secured within the top recess, the composite abrasive compact comprising a cemented carbide backing to which is bonded a compact layer. The periphery of the compact layer provides a cutting edge for the tool component.

REFERENCES:
patent: 3342532 (1967-09-01), Krekeler
patent: 4337980 (1982-07-01), Krekeler
patent: 4655508 (1987-04-01), Tomlinson
patent: 4678237 (1987-07-01), Collin
patent: 4679858 (1987-07-01), Tank

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