Methods of manufacturing gradient composite metallic...

Details Methods of manufacturing gradient composite metallic... Methods of manufacturing gradient composite metallic...

B - Operations, Transporting

22

F

75/154, 57/17, 1

B22F 7/00 (2006.01)

Patent

CA 1157606

ABSTRACT OF THE INVENTION A rolling cutter drill bit is disclosed having cutters manufactured by powder metallurgy techniques, said cutters hav- ing gradient composite metallic structures in the cutting areas arranged to reduce or eliminate physical and metallic disconti- nuities and stress risers.

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