US5518822A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Titanium carbonitride-based cermet cutting insert
Assignee: Mitsubishi Materials Corp
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Filing: 1994-10-12
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Granted: 1996-05-21
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Expires: 2014-10-12
Abstract
Abstract A TiCN-based cermet cutting insert superior in toughness with improved wear resistance includes a binding phase and at least two hard dispersion phases. One of the hard dispersion phases includes one of a duplex and triplex structure having a core structure containing at least one of titanium carbonitride and a carbonitride solid solution of Ti and one of a V, Cr, Ti, Nb, Zr, W and Mo (hereinafter referred to as a (Ti,M)CN. The other hard dispersion phase includes a single structure wherein the core structure is composed of at least one of (Ti,M)CN or (Ti,M)CN and TiCN.
Inventors
- 👤 Kiyohiro Teruuchi
- 👤 Katsuhiko Yano
- 👤 Niro Odani
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:40
CPC Classifications
C; C22; C22C; C22C29/00; C22C29/02; C22C29/04; B; B22; B22F; B22F2998/00; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12021; Y10T428/12028; Y10T428/12049; Y10T428/12056; Y10T428/1216; Y10T428/12167; Y10T428/12174
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
80 words
A cerment cutting insert comprising: from about 5 to about 30 volume percent of a metallic binding phase; consisting of at least one of Ni and Co; from about 5 to about 40 volume percent of a first hard dispersion phase having at least one of a duplex and a triplex structure comprising a core of TiCN; and a balance of said cutting insert being a second hard dispersion phase having a single-phase structure having a core of a TiCN.
Claim 2
Dependent Claim
80 words
A cerment cutting insert comprising: from about 5 to about 30 volume percent of a metallic binding phase; consisting of at least one of Ni and Co; from about 5 to about 40 volume percent of a first hard dispersion phase having at least one of a duplex and a triplex structure comprising a core of TiCN; and a balance of said cutting insert being a second hard dispersion phase having a single-phase structure having a core of a TiCN.
Claim 3
Dependent Claim
100 words
A cermet cutting insert comprising: from about 5 to about 30 volume percent of a metallic binding phase consisting of at least one of Ni and Co; from 5 to 40 volume percent of a first hard dispersion phase having at least one of a duplex and a triplex structure comprising a core of TiCN; and a balance of said cutting insert being a second hard dispersion phase having a core of a composite carbonitride of a solid solution of Ti and at least one element selected from the group consisting of Ta, Nb, V, Zr, W, Mo and Cr.
Claim 4
Dependent Claim
100 words
A cermet cutting insert comprising: from about 5 to about 30 volume percent of a metallic binding phase consisting of at least one of Ni and Co; from 5 to 40 volume percent of a first hard dispersion phase having at least one of a duplex and a triplex structure comprising a core of TiCN; and a balance of said cutting insert being a second hard dispersion phase having a core of a composite carbonitride of a solid solution of Ti and at least one element selected from the group consisting of Ta, Nb, V, Zr, W, Mo and Cr.
Claim 5
Dependent Claim
131 words
A cermet cutting insert comprising: from about 5 to about 30 volume percent of a metallic binding phase consisting of at least one of Ni and Co from 5 to 40 volume percent of a first hard dispersion phase having at least one of a duplex and a triplex structure having a core of a composite carbonitride of a solid solution of Ti and at least one element selected from the group consisting of Ta, Nb, V, Zr, W, Mo and Cr; and a balance of said cutting insert being a second hard dispersion phase having a single-phase structure having a core of a composite carbonitride of a solid solution of Ti and at least one element selected from the group consisting of Ta, Nb, V, Zr, W, Mo and Cr.
Claim 6
Dependent Claim
131 words
A cermet cutting insert comprising: from about 5 to about 30 volume percent of a metallic binding phase consisting of at least one of Ni and Co from 5 to 40 volume percent of a first hard dispersion phase having at least one of a duplex and a triplex structure having a core of a composite carbonitride of a solid solution of Ti and at least one element selected from the group consisting of Ta, Nb, V, Zr, W, Mo and Cr; and a balance of said cutting insert being a second hard dispersion phase having a single-phase structure having a core of a composite carbonitride of a solid solution of Ti and at least one element selected from the group consisting of Ta, Nb, V, Zr, W, Mo and Cr.
Claim 7
Dependent Claim
137 words
A cermet cutting insert comprising: from about 5 to about 30 volume percent of a metallic binding phase consisting of at least one of Ni and Co; from 5 to 40 volume percent of a first hard dispersion phase having at least one of a duplex and a triplex structure having a core of a composite carbonitride of a solid solution of Ti and at least one element selected from the group consisting of Ta, Nb, V, Zr, W, Mo and Cr; and a balance of said cutting insert being a second hard dispersion phase having a single-phase structure having a core selected from the group consisting of a composite carbonitride of a solid solution of Ti and at least one element selected from the group consisting of Ta, Nb, V, Zr, W, Mo, Cr and TiCN.
Claim 8
Dependent Claim
137 words
A cermet cutting insert comprising: from about 5 to about 30 volume percent of a metallic binding phase consisting of at least one of Ni and Co; from 5 to 40 volume percent of a first hard dispersion phase having at least one of a duplex and a triplex structure having a core of a composite carbonitride of a solid solution of Ti and at least one element selected from the group consisting of Ta, Nb, V, Zr, W, Mo and Cr; and a balance of said cutting insert being a second hard dispersion phase having a single-phase structure having a core selected from the group consisting of a composite carbonitride of a solid solution of Ti and at least one element selected from the group consisting of Ta, Nb, V, Zr, W, Mo, Cr and TiCN.
Claim 9
Dependent Claim
111 words
A cermet cutting insert comprising: from about 5 to about 30 volume percent of a metallic binding phase consisting of at least one of Ni and Co; from 5 to 40 volume percent of a first hard dispersion phase having a core of TiCN; a triplex structure having a core of a composite carbonitride of a solid a balance of said cutting insert being a second hard dispersion phase having a single-phase structure having a core selected from the group consisting of a composite carbonitride of a solid solution of Ti and at least one element selected from the group consisting of Ta, Nb, V, Zr, W, Mo, Cr and TiCN.
Claim 10
Dependent Claim
111 words
A cermet cutting insert comprising: from about 5 to about 30 volume percent of a metallic binding phase consisting of at least one of Ni and Co; from 5 to 40 volume percent of a first hard dispersion phase having a core of TiCN; a triplex structure having a core of a composite carbonitride of a solid a balance of said cutting insert being a second hard dispersion phase having a single-phase structure having a core selected from the group consisting of a composite carbonitride of a solid solution of Ti and at least one element selected from the group consisting of Ta, Nb, V, Zr, W, Mo, Cr and TiCN.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-05-21 | 1999-11-20 | 2000-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-05-21 | 2003-11-20 | 2004-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-05-21 | 2007-11-20 | 2008-05-21 | $7700.00 | Window Closed / Lapsed |