Coated carbide alloy cutting member exhibiting excellent resista

Details Coated carbide alloy cutting member exhibiting excellent resista Coated carbide alloy cutting member exhibiting excellent resista

1997-01-24

1999-11-16

Turner, Archene

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

428469, 428472, 428697, 428698, 428699, 428701, 428702, 428336, 51307, 51309, B32B 1504

Patent

active

059854278

ABSTRACT:
A coated carbide alloy cutting member is provided exhibiting excellent resistance against chipping, wherein the cutting member has a cemented carbide substrate and one or more hard coating layers including an aluminum oxide-based layer primarily of aluminum oxide, the hard coating layers having an average thickness of 3 to 20 .mu.m and being formed on the cemented carbide substrate by chemical and/or physical vapor deposition; and wherein the aluminum oxide-based layer contains 0.005 to 0.5 percent by weight of chlorine.

REFERENCES:
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patent: 4525415 (1985-06-01), Porat
patent: 4532149 (1985-07-01), McHargue
patent: 4746563 (1988-05-01), Nakama et al.
patent: 4758451 (1988-07-01), Van den Berg et al.
patent: 5516588 (1996-05-01), Van den Berg et al.

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