US5358796A
Expired / Lapsed
US
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Joined parts of Ni-Ti alloys with different metals and joining method therefor
Assignee: Furukawa Electric Co Ltd
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Filing: 1993-06-15
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Granted: 1994-10-25
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Expires: 2013-06-15
Abstract
Abstract Composite parts of Ni-Ti alloys joined to a different metal have a melt forged structure obtained through the reactive fusion of both metals, initiated by the fusion of at least one metal bordering on the joint interface and the application of pressure; a hot forged structure of Ni-Ti alloy obtained through softening the alloy at high temperature and applying pressure on the Ni-Ti alloy side of the joint; and a hot forged structure of the different metal obtained by softening the metal at high temperature and applying pressure on the different metal side of the joint.
Inventors
- 👤 Masayuki Nakamura
- 👤 Kaisuke Shiroyama
- 👤 Satoru Masunaga
- 👤 Kazuo Murata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:23
CPC Classifications
B; B23; B23K; B23K20/00; B23K20/02; B23K11/00; B23K11/16; B23K11/20; B23K20/22; B23K20/227; B23K20/233; Y; Y10; Y10S; Y10S420/00; Y10S420/902; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12771; Y10T428/12806; Y10T428/12861; Y10T428/12944
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
172 words
A joined article of a Ni-Ti alloy having a shape memory characteristic or a superelasticity characteristic and a metal different from said Ni-Ti alloy, said article having interfacial parts of said Ni-Ti alloy joined with said metal different from said Ni-Ti alloy, comprising: i) a melt-forged layer obtained through reactive fusion under application of pressure of at least a portion of said different metal bordering on a joined surface with said Ni-Ti alloy; ii) a hot-forged layer of said Ni-Ti alloy across a side of layer i), said hot-forged layer having been obtained by softening a portion of said Ni-Ti alloy at high temperature and applying pressure on the side of said Ni-Ti alloy across from said layer (i); and iii) a hot-forged layer of said different metal across a side of said layer i) opposite that of said layer ii), said hot-forged layer having been obtained by softening a portion of said different metal at high temperature and applying pressure on the side of said different metal across said layer (i).
Claim 2
Dependent Claim
172 words
A joined article of a Ni-Ti alloy having a shape memory characteristic or a superelasticity characteristic and a metal different from said Ni-Ti alloy, said article having interfacial parts of said Ni-Ti alloy joined with said metal different from said Ni-Ti alloy, comprising: i) a melt-forged layer obtained through reactive fusion under application of pressure of at least a portion of said different metal bordering on a joined surface with said Ni-Ti alloy; ii) a hot-forged layer of said Ni-Ti alloy across a side of layer i), said hot-forged layer having been obtained by softening a portion of said Ni-Ti alloy at high temperature and applying pressure on the side of said Ni-Ti alloy across from said layer (i); and iii) a hot-forged layer of said different metal across a side of said layer i) opposite that of said layer ii), said hot-forged layer having been obtained by softening a portion of said different metal at high temperature and applying pressure on the side of said different metal across said layer (i).
Claim 3
Dependent Claim
53 words
The joined article of claim 1, wherein said Ni-Ti alloy comprises 40-60 at % each of Ni and Ti, and further comprising no more than 20 at % of an element selected from the group consisting of Fe, Cr, Al, V, Pd, Ag, Mn, Mg, Co, Nb, Mo, Cu and a mixture thereof.
Claim 4
Dependent Claim
34 words
The joined article of claim 1, wherein said metal different from said Ni-Ti alloy is selected from the group consisting of Ni, Ti, Cu, Fe, Ni-based alloy, Ti-based alloy, Fe-based alloy and Cu-based alloy.
Claim 5
Dependent Claim
19 words
The joined article of claim 1, wherein said Ni-Ti alloy comprises 40-60 at % each of Ni and Ti.
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) | 1997-10-24 | 1998-04-25 | 1998-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-10-24 | 2002-04-25 | 2002-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-10-24 | 2006-04-25 | 2006-10-25 | $7700.00 | Window Closed / Lapsed |