Patent US4942285A successfully refreshed from Google Patents.
US4942285A
Expired / Lapsed
US
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Method for welding metal honeycomb carrier
Assignee: Marelli Corp
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Filing: 1989-11-06
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Granted: 1990-07-17
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Expires: 2009-11-06
Abstract
Abstract This invention relates to a method for welding a metal honeycomb carrier in which the metal honeycomb carrier for a catalyst convertor is welded. The method for welding the metal honeycomb carrier according to this invention radiates laser beam to one end surface of a core section formed of metal corrugated and flat plates to mutually weld said corrugated and flat plates, where said laser beam is moved in the direction perpendicular to the welding direction while oscillating at a certain amplitude and masking is applied to the amplitude end of said laser beam and its neighboring area on the end surface of said core section.
Inventors
- 👤 Hiroyuki Ishikawa
- 👤 Hiroyasu Koizumi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:47
CPC Classifications
B; B23; B23K; B23K26/00; B23K26/20; B23K26/21; B23K26/24; B23K26/28; B23K2101/00; B23K2101/02
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
77 words
A method for welding a metal honeycomb carrier by radiating laser beam to one end surface of a core section formed of metal corrugated and flat plates to mutually weld said corrugated and flat plates, said method comprising: moving said laser beam in the direction perpendicular to the welding direction while oscillating at a certain amplitude and masking the amplitude end of said laser beam and its neighboring area on the end surface of said core section.
Claim 2
Independent Claim
77 words
A method for welding a metal honeycomb carrier by radiating laser beam to one end surface of a core section formed of metal corrugated and flat plates to mutually weld said corrugated and flat plates, said method comprising: moving said laser beam in the direction perpendicular to the welding direction while oscillating at a certain amplitude and masking the amplitude end of said laser beam and its neighboring area on the end surface of said core section.
Claim 3
Dependent Claim
33 words
A method for welding a metal honeycomb carrier according to claim 1, wherein the core section is formed by piling the metal corrugated and flat plates and rolling them into a multiple layer.
Claim 4
Dependent Claim
30 words
A method for welding a metal honeycomb carrier according to claim 1, wherein the core section is formed by piling the metal corrugated and flat plates into a multiple layer.
Claim 5
Dependent Claim
21 words
A method for welding a metal honeycomb carrier according to claim 1, wherein the amplitude is 2 mm to 30 mm.
Claim 6
Dependent Claim
20 words
A method for welding a metal honeycomb carrier according to claim 2, wherein frequency is 120 Hz to 150 Hz.
Claim 7
Dependent Claim
30 words
A method for welding a metal honeycomb carrier according to claim 1, wherein masking is effected to cover a distance of at least 0.3 mm inward from the amplitude end.
Claim 8
Independent Claim
67 words
A method for welding a metal honeycomb carrier by radiating laser beam generated from a laser generator to one end surface of a core section formed of metal corrugated and flat plates to mutually weld said corrugated and flat plates, said method comprising: converting said laser beam into a linear beam through a condensing member and radiating the beam to the end surface of said core section.
Claim 9
Independent Claim
67 words
A method for welding a metal honeycomb carrier by radiating laser beam generated from a laser generator to one end surface of a core section formed of metal corrugated and flat plates to mutually weld said corrugated and flat plates, said method comprising: converting said laser beam into a linear beam through a condensing member and radiating the beam to the end surface of said core section.
Claim 10
Dependent Claim
21 words
A method for welding a metal honeycomb carrier according to claim 7, wherein the condensing member is a cylindrical concave mirror.
Claim 11
Dependent Claim
21 words
A method for welding a metal honeycomb carrier according to claim 7, wherein the condensing member is a cylindrical convex lens.
Claim 12
Dependent Claim
33 words
A method for welding a metal honeycomb carrier according to claim 7, wherein the core section is formed by piling the metal corrugated and flat plates and rolling them into a multiple layer.
Claim 13
Dependent Claim
33 words
A method for welding a metal honeycomb carrier according to claim 7, wherein the core section is formed by piling the metal corrugated and flat plates and laminating them into a multiple layer.
Claim 14
Dependent Claim
20 words
A method for welding a metal honeycomb carrier according to claim 7, wherein frequency is 120 Hz to 150 Hz.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1993-07-16 | 1994-01-15 | 1994-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-07-16 | 1998-01-15 | 1998-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-07-16 | 2002-01-15 | 2002-07-17 | $7700.00 | Window Closed / Lapsed |