Patent US3882579A successfully refreshed from Google Patents.
US3882579A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anti-wear thin film coatings and method for making same
Assignee: Granville Phillips Co
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Filing: 1973-08-21
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Granted: 1975-05-13
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Expires: 1993-08-21
Abstract
Abstract A tool for and the method of cutting metal containing materials, the tool including a coating on the cutting edge thereof and a method of providing the coating on the cutting edge including the steps of (1) cleaning the cutting edge; and (2) vapor depositing a coating material selected from the group consisting of titanium, chromium, hafnium, zirconium, alloys thereof with each other, and alloys thereof with other materials where the titanium, chromium, hafnium, or zirconium is at least 2 percent of said last-mentioned alloy, the coating material being deposited onto the cutting edge to a depth of approximately 10 2 to 10 Mu m.
Inventors
- 👤 Roy Norman Peacock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:21
CPC Classifications
B; B23; B23P; B23P15/00; B23P15/28; B23P15/30; B23B; B23B27/00; B23B27/14; B23B27/148; C; C23; C23C; C23C30/00; C23C30/005; Y; Y10; Y10T; Y10T407/00; Y10T407/27; Y10T82/00; Y10T82/10
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
121 words
A method for cutting with a tool a metal containing material tending to build up on the cutting edge of said tool during a cutting operation comprising cutting said material with a tool having (a) a cutting edge substrate for said tool for cutting metallic materials; and (b) a physically vapor deposited coating of a material selected from the group consisting of titanium, chromium, hafnium, zirconium, and alloys thereof with each other, the thickness of said coating being approximately in the range of 10 2 to 10 Mu m, said coating being partially diffused in said substrate to form a bond therebetween so that build up of said metal containing material on said cutting edge is minimized during said cutting step.
Claim 2
Independent Claim
121 words
A method for cutting with a tool a metal containing material tending to build up on the cutting edge of said tool during a cutting operation comprising cutting said material with a tool having (a) a cutting edge substrate for said tool for cutting metallic materials; and (b) a physically vapor deposited coating of a material selected from the group consisting of titanium, chromium, hafnium, zirconium, and alloys thereof with each other, the thickness of said coating being approximately in the range of 10 2 to 10 Mu m, said coating being partially diffused in said substrate to form a bond therebetween so that build up of said metal containing material on said cutting edge is minimized during said cutting step.
Claim 3
Dependent Claim
32 words
A method as in claim 1 where said metal containing material is selected from the group consisting of steel, aluminum and its alloys, nickel and its alloys, and copper and its alloys.
Claim 4
Dependent Claim
21 words
A method as in claim 2 where said steel is selected from the group consisting of stainless steel and unhardened steel.
Claim 5
Dependent Claim
23 words
A method as in claim 1 where said thickness of said coating is approximately in the range of 0.5 to 1 Mu m.
Claim 6
Dependent Claim
27 words
A method as in claim 1 where said cutting edge substrate is selected from the group of materials consisting of steel, tungsten carbide, and cemented carbide mixtures.
Claim 7
Dependent Claim
12 words
A method as in claim 1 where said coating material is titanium.
Claim 8
Dependent Claim
107 words
IN A TOOL FOR CUTTING WITH A TOOL METALLIC MATERIALS TENDING TO BUILD UP ON THE CUTTING EDGE OF SAID TOOL DURING A CUTTING OPERATION, THE IMPROVEMENT COMPRISING A. A CUTTING EDGE SUBSTRATE; B. A PHYSICALLY VAPOR DEPOSITED COATING OF A MATERIAL SELECTED FROM THE GROUP CONSISTING OF TITANIUM, CHROMIUM, HAFNIUM, ZIRCONIUM, AND ALLOYS THEREOF WITH EACH OTHER, THE THICKNESS OF SAID COATING BEING APPROXIMATELY IN THE RANGE OF 10**-2 TO 10 UM, SAID COATING BEING PARTIALLY DIFFUSED IN SAID SUBSTRATE TO FORM A BOND THEREBETWEEN SO THAT BUILD UP OF SAID METALLIC MATERIALS ON SAID METAL CONTAINING MATERIAL ON SAID TOOL IS MINIMIZED DURING SAID CUTTING.
Claim 9
Dependent Claim
107 words
IN A TOOL FOR CUTTING WITH A TOOL METALLIC MATERIALS TENDING TO BUILD UP ON THE CUTTING EDGE OF SAID TOOL DURING A CUTTING OPERATION, THE IMPROVEMENT COMPRISING A. A CUTTING EDGE SUBSTRATE; B. A PHYSICALLY VAPOR DEPOSITED COATING OF A MATERIAL SELECTED FROM THE GROUP CONSISTING OF TITANIUM, CHROMIUM, HAFNIUM, ZIRCONIUM, AND ALLOYS THEREOF WITH EACH OTHER, THE THICKNESS OF SAID COATING BEING APPROXIMATELY IN THE RANGE OF 10**-2 TO 10 UM, SAID COATING BEING PARTIALLY DIFFUSED IN SAID SUBSTRATE TO FORM A BOND THEREBETWEEN SO THAT BUILD UP OF SAID METALLIC MATERIALS ON SAID METAL CONTAINING MATERIAL ON SAID TOOL IS MINIMIZED DURING SAID CUTTING.
Claim 10
Dependent Claim
23 words
The improvement as in claim 7 where said thickness of said coating is approximately in the range of 0.5 to 1 Mu m.
Claim 11
Dependent Claim
27 words
The improvement as in claim 7 where said cutting edge substrate is selected from the group of materials consisting of steel, tungsten carbide, and cemented carbide mixtures.
Claim 12
Dependent Claim
12 words
The improvement as in claim 7 where said coating material is titanium.
Claim 13
Dependent Claim
15 words
A method as in claim 1 where said coating is physically vapor deposited by sputtering.
Claim 14
Dependent Claim
16 words
A method as in claim 1 where said coating is physically vapor deposited by thermal heating.
Claim 15
Dependent Claim
15 words
In a tool in claim 7 where said coating is physically vapor deposited by sputtering.
Claim 16
Dependent Claim
17 words
In a tool as in claim 7 where said coating is physically vapor deposited by thermal heatiNg.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-12 | 1978-11-11 | 1979-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-12 | 1982-11-11 | 1983-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-12 | 1986-11-11 | 1987-05-13 | $7700.00 | Window Closed / Lapsed |