Tool of cemented carbide for cutting, punching or nibbling

Details Tool of cemented carbide for cutting, punching or nibbling Tool of cemented carbide for cutting, punching or nibbling

1993-05-06

1995-04-04

Turner, A. A.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

51307, 51309, 428469, 428698, B32B 1504

Patent

active

054036526

ABSTRACT:
There is provided a cemented carbide tool for punching, cutting or nibbling containing WC and a binder comprising at least one of the metals Co, Ni and Fe. The tool comprises a core of eta-phase-containing cemented carbide surrounded by an eta-phase-free surface zone with the working surface of the tool comprising exposed eta-phase-containing cemented carbide.

REFERENCES:
patent: 3909895 (1975-10-01), Abrahamson et al.
patent: 4339272 (1982-07-01), Grover et al.
patent: 4359335 (1982-11-01), Garner
patent: 4610931, Nemeth et al.
patent: 4642003 (1987-02-01), Yoshimura
patent: 4705124 (1987-11-01), Abrahamson et al.
patent: 4731296 (1988-03-01), Kikuchi et al.
patent: 4743515 (1988-05-01), Fischer et al.
patent: 4843039 (1989-06-01), Akesson et al.
A. T. Santhanam et al, "Innovations in Coated Carbide Cutting Tools", MPR Dec. 1987, pp. 841-845.

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