US4554130A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Consolidation of a part from separate metallic components
Assignee: POWMET FORGINGS LLC
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Filing: 1984-10-01
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Granted: 1985-11-19
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Expires: 2004-10-01
Abstract
Abstract A method of consolidating metallic body means comprises (a) applying to the body means a mixture of: (i) metallic powder (ii) fugitive organic binder (iii) volatile solvent (b) drying the mixture, and (c) burning out the binder and solvent at elevated temperature, (d) and applying pressure to the powdered metal to consolidate same on said body means.
Inventors
- 👤 Gunes M. Ecer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:23
CPC Classifications
E; E21; E21B; E21B17/00; E21B17/10; E21B17/1078; B; B22; B22F; B22F3/00; B22F3/12; B22F3/14; B22F3/15; B22F3/22; B22F7/00; B22F7/06; E21B10/00; E21B10/08; E21B10/22; E21B10/46; E21B10/50; E21B10/52; B22F5/00; B22F2005/001
Claims Analysis
Total Claims: 34
Claim 1
Independent Claim
93 words
A method of consolidating metallic body means which includes: (a) applying to the body means surface a mixture of: (i) metallic powder, (ii) fugitive organic binder, and (iii) volatile solvent, (b) drying the mixture, (c) burning out the binder and solvent at elevated temperature, (d) immersing the heated body means in a heated granular bed of refractory material within a metal die, and (e) applying a pressure to the granular bed, which transmits the pressure to the body means, until the said metal powder is consolidated and bonded to the said body means.
Claim 2
Independent Claim
93 words
A method of consolidating metallic body means which includes: (a) applying to the body means surface a mixture of: (i) metallic powder, (ii) fugitive organic binder, and (iii) volatile solvent, (b) drying the mixture, (c) burning out the binder and solvent at elevated temperature, (d) immersing the heated body means in a heated granular bed of refractory material within a metal die, and (e) applying a pressure to the granular bed, which transmits the pressure to the body means, until the said metal powder is consolidated and bonded to the said body means.
Claim 3
Dependent Claim
13 words
The method of claim 1 wherein said binder consists essentially of cellulose acetate.
Claim 4
Dependent Claim
11 words
The method of claim 1 wherein said solvent consists of acetone.
Claim 5
Dependent Claim
12 words
The method of claim 1 wherein said powder consists essentially of steel.
Claim 6
Dependent Claim
12 words
Body means having cladding consolidated thereon by the method of claim 1.
Claim 7
Dependent Claim
23 words
The method of claim 1 wherein said body means comprises multiple bodies joined together by said consolidated powder metal initially in said mixture.
Claim 8
Dependent Claim
22 words
Body means comprising multiple bodies joined together by the method of claim 1 with said consolidated metal powder located between the bodies.
Claim 9
Dependent Claim
28 words
The method of claim 6 wherein at least one of the bodies is consolidated at the same time as said step (e) of claim 1 is carried out.
Claim 10
Dependent Claim
25 words
The method of claim 8 wherein at least said one body, prior to said step (e), consists of powdered metal which is not completely consolidated.
Claim 11
Dependent Claim
24 words
The method of claim 6 wherein said bodies have rim portions which are joined together by said consolidated powder metal initially in said mixture.
Claim 12
Dependent Claim
15 words
The method of claim 6 wherein one of said bodies comprises a drilling bit core.
Claim 13
Dependent Claim
28 words
The method of claim 5 wherein said body means comprises a drilling bit core, and said cladding is formed on said core exterior to provide a wear pad.
Claim 14
Dependent Claim
38 words
The method of claim 6 wherein one of said bodies comprises a drilling bit core, and another of said bodies comprises a cutter or cutters joined to the core by said consolidated powder metal initially in said mixture.
Claim 15
Dependent Claim
36 words
The method of claim 6 wherein one of said bodies comprises a drilling bit core, and another of said bodies comprises a nozzle joined to the core by said consolidated powder metal initially in said mixture.
Claim 16
Dependent Claim
41 words
The method of claim 5 wherein one of said body means comprises a stabilizer sleeve adapted for use in a well bore, and said cladding is formed on the sleeve exterior to define a wear resistant local outer surface or surfaces.
Claim 17
Dependent Claim
31 words
The method of claim 15 wherein there are multiple of said surfaces which are spaced apart and spiral about and along said sleeve, thereby to define well fluid circulation passages therebetween.
Claim 18
Dependent Claim
55 words
The method of claim 6 wherein one of said bodies comprises a metallic stablizer sleeve adapted for use in a well bore with a drill pipe extending therethrough, and another or others of said bodies comprises a wear resistant pad or pads joined to the sleeve by said consolidated powder metal initially on said mixture.
Claim 19
Dependent Claim
11 words
The consolidated body means produced by the process of claim 1.
Claim 20
Dependent Claim
47 words
The method of claim 1 wherein said mixture is a fluid and is applied to said body means by one of the following: (i) dipping the body means into said mixture, (ii) painting said mixture on the body means, (iii) spraying the mixture onto the body means.
Claim 21
Dependent Claim
36 words
The method of claim 1 wherein the body means has a layer of powder metal consolidated and bonded provided thereon, thereby forming a consolidated cladding on the body means, by the steps recited in claim 1.
Claim 22
Dependent Claim
36 words
The method of claim 1 wherein the initial density of the body means is less than 100% of its theoretical density and the said body means is consolidated simultaneously with said step (e) of claim 1.
Claim 23
Independent Claim
176 words
The method of consolidating a metallic body means by joining separately produced metallic body components, as follows: (a) applying to the joint surfaces on the said body components a mixture of: (i) metallic powder, (ii) fugitive organic binder, and (iii) volatile solvent, (b) assembling the components to be joined together whereby the said mixture acts as weakly binding adhesive between the component joint surfaces, (c) drying the mixture, (d) burning out the binder and solvent at elevated temperature, (e) immersing the heated assembly of body components, still relatively weakly bonded together at the joint surfaces, in a heated granular bed of refractory material within a metal die, and (f) applying a pressure to the granular bed, which transmits the pressure to said components, until the said metallic body components are bonded together strongly by the consolidation of the metal powder applied to the joint surfaces and by bonding of the consolidated metal powder to the surfaces of the metallic body components, thus creating a metallic body means more complex in shape than the original body components.
Claim 24
Independent Claim
176 words
The method of consolidating a metallic body means by joining separately produced metallic body components, as follows: (a) applying to the joint surfaces on the said body components a mixture of: (i) metallic powder, (ii) fugitive organic binder, and (iii) volatile solvent, (b) assembling the components to be joined together whereby the said mixture acts as weakly binding adhesive between the component joint surfaces, (c) drying the mixture, (d) burning out the binder and solvent at elevated temperature, (e) immersing the heated assembly of body components, still relatively weakly bonded together at the joint surfaces, in a heated granular bed of refractory material within a metal die, and (f) applying a pressure to the granular bed, which transmits the pressure to said components, until the said metallic body components are bonded together strongly by the consolidation of the metal powder applied to the joint surfaces and by bonding of the consolidated metal powder to the surfaces of the metallic body components, thus creating a metallic body means more complex in shape than the original body components.
Claim 25
Dependent Claim
15 words
The method of claim 22 wherein the said metallic body components number three or more.
Claim 26
Dependent Claim
30 words
The body means produced by the method of one of claims 22 and 23, wherein said components and the said metal powder used to join the components have dissimilar compositions.
Claim 27
Dependent Claim
58 words
The body means produced by the method of one of claims 22 and 23 wherein at least one of the metallic body components being joined has a density less than 100% of its theoretical density initially, and is consolidated simultaneously with said powder metal at the same time as said step (f) of claim 22 is carried out.
Claim 28
Dependent Claim
40 words
The body means produced by the method of one of claims 22 and 23 wherein at least one of the body components initially has less than the full theoretical density and consists of powdered metal which is not completely consolidated.
Claim 29
Independent Claim
37 words
The method of one of claims 22 and 23 wherein the powder metal applied to the joint surfaces is partially sintered into a strip prior to being placed in the joint between the body components being joined.
Claim 30
Dependent Claim
41 words
The method of claim 22 wherein step (e) is carried out so that the granular, pressure transmitting bed envelopes only a portion of the assembly of metallic body components, the remainder of the assembly being supported by a solid shaped die.
Claim 31
Dependent Claim
20 words
A roller bit rolling cutter used in earth drilling produced by the method of one of claims 1 and 22.
Claim 32
Dependent Claim
25 words
A shear bit used in earth drilling, utilizing polycrystalline diamond compacts as cutting elements, produced by the method of one of claims 1 and 22.
Claim 33
Dependent Claim
18 words
A stabilizer sleeve used in earth drilling produced by the method of one of claims 1 and 22.
Claim 34
Independent Claim
34 words
The method of one of claims 1 and 22 wherein one of the components is a leachable ceramic, and can be chemically removed after consolidation of the body means to provide a predesigned cavity.
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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) | 1988-11-18 | 1989-05-20 | 1989-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-11-18 | 1993-05-20 | 1993-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-11-18 | 1997-05-20 | 1997-11-19 | $7700.00 | Window Closed / Lapsed |