US3840367A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tool alloy compositions and methods of fabrication
Assignee: TDY Industries LLC
•
Filing: 1972-02-14
•
Granted: 1974-10-08
•
Expires: 1992-02-14
Abstract
Abstract A composition of material comprising a titanium molybdenum carbide and an iron group metal binder is disclosed which is particularly useful as a metal cutting tool. The carbide phase of the composition is substantially richer in carbon than the prior art. For any given metal exchange ration, the carbide phase contains more carbon than the composition line TiC-Mo2C for the same ratio. Also, the carbide phase can contain higher amounts of molybdenum than was used in the prior art.
Inventors
- 👤 E Rudy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:11
CPC Classifications
C; C22; C22C; C22C29/00; C22C29/02; C22C29/06; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9265; Y10S428/932
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
55 words
A COMPOSITION OF MATERIAL COMPRISING SINTERED CARBIDEBINDER METAL IN WHICH SAID CARBIDE HAS TITANIUM AND MOLYBDENUM AS ITS BASE METAL AND HAS A GROSS COMPOSITION FALLING WITHIN THE AREA EFGH OF FIG. 1, AND IN WHICH SAID BINDER IS SELECTED FROM THE IRON METALS AND COMPRISES BETWEEN 5 AND 25 WEIGHT PERCENT OF THE COMPOSITION.
Claim 2
Dependent Claim
55 words
A COMPOSITION OF MATERIAL COMPRISING SINTERED CARBIDEBINDER METAL IN WHICH SAID CARBIDE HAS TITANIUM AND MOLYBDENUM AS ITS BASE METAL AND HAS A GROSS COMPOSITION FALLING WITHIN THE AREA EFGH OF FIG. 1, AND IN WHICH SAID BINDER IS SELECTED FROM THE IRON METALS AND COMPRISES BETWEEN 5 AND 25 WEIGHT PERCENT OF THE COMPOSITION.
Claim 3
Dependent Claim
24 words
A composition of material according to claim 1 in which said carbide has a gross composition falling within the area E''F''G''H'' of FIG. 1.
Claim 4
Dependent Claim
33 words
A composition of material according to claim 2 in which said binder is selected from the group consisting of nickel and cobalt and comprises between 8 and 12 weight percent of the composition.
Claim 5
Dependent Claim
39 words
A composition of material according to claim 1 in which up to 30 mole percent of the total amount of titanium in the composition is replaced by a material chosen from the group consisting of hafnium, niobium and tantalum.
Claim 6
Dependent Claim
28 words
A composition of material according to claim 1 in which up to 50 mole percent of the total amount of molybdenum in the composition is replaced by tungsten.
Claim 7
Dependent Claim
30 words
A composition of material according to claim 5 in which up to 10 mole percent of the combined amounts of molybdenum and tungsten in the composition is replaced by chromium.
Claim 8
Dependent Claim
28 words
A composition of material according to claim 1 in which up to 25 mole percent of the total amount of carbon in the composition is replaced by nitrogen.
Claim 9
Dependent Claim
28 words
A composition of material according to claim 1 in which up to 20 mole percent of the total amount of titanium in the composition is replaced by vanadium.
Claim 10
Independent Claim
126 words
The method of forming a composition of material comprising a sintered carbide-binder metal in which said carbide has titanium and molybdenum as its base metal and has a predetermined gross composition falling with the area EFGH of FIG. 1, comprising the steps of: forming a homogeneous solid solution powder alloy of (Ti,Mo)C which contains a higher mole percent molybdenum than said predetermined Gross composition, adding a sufficient amount of titanium monocarbide to said homogeneous solid solution powder alloy so that said powder alloy and said titanium monocarbide together have said predetermined gross composition, adding binder material to said mixture, mechanically blending said mixture until it has a uniform consistency, compacting said mixture into a desired shape, and sintering the composites so formed at an elevated temperature.
Claim 11
Independent Claim
126 words
The method of forming a composition of material comprising a sintered carbide-binder metal in which said carbide has titanium and molybdenum as its base metal and has a predetermined gross composition falling with the area EFGH of FIG. 1, comprising the steps of: forming a homogeneous solid solution powder alloy of (Ti,Mo)C which contains a higher mole percent molybdenum than said predetermined Gross composition, adding a sufficient amount of titanium monocarbide to said homogeneous solid solution powder alloy so that said powder alloy and said titanium monocarbide together have said predetermined gross composition, adding binder material to said mixture, mechanically blending said mixture until it has a uniform consistency, compacting said mixture into a desired shape, and sintering the composites so formed at an elevated temperature.
Claim 12
Dependent Claim
24 words
The method of claim 9 which further comprises the step of grinding the sintered composite into predetermined shape to form a metal cutting tool.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-07 | 1978-04-08 | 1978-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-07 | 1982-04-08 | 1982-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-07 | 1986-04-08 | 1986-10-08 | $7700.00 | Window Closed / Lapsed |