US4572271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing a machine part of fiber-reinforced composite material, the fiber-reinforcement body and the machine part
Assignee: Honda Motor Co Ltd
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Filing: 1984-07-10
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Granted: 1986-02-25
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Expires: 2004-07-10
Abstract
Abstract A method of producing a machine part of a fiber-reinforced composite material comprising forming a fibrous-shaped body by effecting a partial diffusion-bonding of a plurality of inorganic fibers by copper solder. The fibrous-shaped body is self-supporting and is of relatively high density of the order between 2.0 and 5.0 g/cc. The mechanical part is produced by integrating the fibrous-shaped body with a matrix metal by high pressure solidification.
Inventors
- 👤 Waichiro Nakashima
- 👤 Hiroshi Sasaki
- 👤 Katsuhiro Nishizaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:23
CPC Classifications
F; F16; F16C; F16C7/00; F16C7/02; F16C7/026; B; B22; B22D; B22D19/00; B22D19/02; B22D19/14; B29; B29C; B29C70/00; B29C70/04; B29C70/28; B29C70/54; B29C70/542; F16C7/023
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
72 words
A method of producing a machine part of a fiber-reinforced composite material, said method comprising forming a fibrous shaped body by effecting a partial diffusion-bonding of a plurality of metallic fibers by copper solder; said fibrous shaped body having a bulk density of more than 2.0 and up to 5.0 g/cc and forming a mechanical part of fiber-reinforced composite material by integrating the fibrous shaped body with a matrix by high-pressure solidification.
Claim 2
Independent Claim
72 words
A method of producing a machine part of a fiber-reinforced composite material, said method comprising forming a fibrous shaped body by effecting a partial diffusion-bonding of a plurality of metallic fibers by copper solder; said fibrous shaped body having a bulk density of more than 2.0 and up to 5.0 g/cc and forming a mechanical part of fiber-reinforced composite material by integrating the fibrous shaped body with a matrix by high-pressure solidification.
Claim 3
Dependent Claim
55 words
A method as claimed in claim 1, wherein said forming of the fibrous shaped body comprises placing said metallic fibers in a heat-resistant shaping mold together with the copper solder at a predetermined bulk density; and heating the shaping mold to cause said copper solder to impregnate fine spaces between adjacent fibers by capillary action.
Claim 4
Dependent Claim
25 words
A method as claimed in claim 2 wherein said shaping mold has an atmosphere consisting of a reducing gas, an inert gas or a vacuum.
Claim 5
Dependent Claim
14 words
A method as claimed in claim 1 wherein said metallic fibers comprise stainless steel.
Claim 6
Dependent Claim
15 words
A method as claimed in claim 1 wherein said copper solder consists of copper wires.
Claim 7
Dependent Claim
50 words
A method as claimed in claim 2 wherein said fibers are in a bundle and are of polygon cross-section with a mean diameter of about 30μ and said copper solder is in the form of copper wires disposed centrally in said bundle and having a diameter of about 0.2 mm.
Claim 8
Dependent Claim
44 words
A self-supporting fibrous shaped body adapted for forming a reinforcement in a non-copper matrix metal under high-pressure solidification, said fibrous shaped body comprising a plurality of metallic fibers at least partially diffusion-bonded by copper solder substantially over the entire extent of the shaped body.
Claim 9
Dependent Claim
44 words
A self-supporting fibrous shaped body adapted for forming a reinforcement in a non-copper matrix metal under high-pressure solidification, said fibrous shaped body comprising a plurality of metallic fibers at least partially diffusion-bonded by copper solder substantially over the entire extent of the shaped body.
Claim 10
Dependent Claim
17 words
A fibrous shaped body as claimed in claim 7 wherein said metallic fibers include stainless steel fibers.
Claim 11
Dependent Claim
63 words
A machine part comprising a non-copper matrix metal and a fibrous shaped reinforcing body integrated in said matrix metal, said fibrous shaped reinforcing body comprising a plurality of metallic fibers at least partially diffusion-bonded by copper solder over substantially the entire extent of said body, said fibrous shaped reinforcing body having a bulk density of more than 2.0 and up to 5.0 g/cc.
Claim 12
Dependent Claim
63 words
A machine part comprising a non-copper matrix metal and a fibrous shaped reinforcing body integrated in said matrix metal, said fibrous shaped reinforcing body comprising a plurality of metallic fibers at least partially diffusion-bonded by copper solder over substantially the entire extent of said body, said fibrous shaped reinforcing body having a bulk density of more than 2.0 and up to 5.0 g/cc.
Claim 13
Dependent Claim
24 words
A machine part as claimed in claim 9 wherein said fibrous shaped reinforcing body is integrated in said matrix metal by high-pressure solidification casting.
Claim 14
Dependent Claim
61 words
A self-supporting fibrous shaped body adapted for forming a reinforcement in a non-copper matrix metal under high-pressure solidification, said fibrous shaped body comprising a plurality of metallic fibers at least partially diffusion-bonded by copper solder substantially over the entire extent of the shaped body, said fibrous shaped body having a bulk density of more than 2.0 and up to 5.0 g/cc.
Claim 15
Dependent Claim
61 words
A self-supporting fibrous shaped body adapted for forming a reinforcement in a non-copper matrix metal under high-pressure solidification, said fibrous shaped body comprising a plurality of metallic fibers at least partially diffusion-bonded by copper solder substantially over the entire extent of the shaped body, said fibrous shaped body having a bulk density of more than 2.0 and up to 5.0 g/cc.
References Cited (Backward Citations)
US3864807A
Cited
JPS5213180A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-02-24 | 1989-08-26 | 1990-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-02-24 | 1993-08-26 | 1994-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-02-24 | 1997-08-26 | 1998-02-25 | $7700.00 | Window Closed / Lapsed |