Tool bit for machining materials

Details Tool bit for machining materials Tool bit for machining materials

1992-04-03

1993-12-21

Howell, Daniel W.

Cutting by use of rotating axially moving tool

Tool of specific diverse material

407119, 408145, B23B 2714

Patent

active

052716961

ABSTRACT:
A tool bit for machining a hard material includes a carrier member (1) supporting polycrystalline diamond platelets (2) with the platelets including a hard metal base member (2a) and a diamond-type layer (2b) supported by the base body. At least the diamond-type layer (2b) is covered by a hard metal layer (3). The hard metal layer (3) serves a carbon diffusion block, whereby the tool bit can be used for machining ferroalloys. Without such a hard metal layer (3) chemical wear occurs due to carbon interaction.

REFERENCES:
patent: 4776862 (1988-10-01), Wiand
patent: 5049164 (1991-09-01), Horton et al.
patent: 5126207 (1992-06-01), Chen et al.

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