US5053601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for producing welded stamped parts
Assignee: Bruderer AG
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Filing: 1989-05-16
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Granted: 1991-10-01
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Expires: 2009-05-16
Abstract
Abstract A process for producing at least two joined-together stamped parts stamps the two stamped parts in stamping operation of a stamping tool in a stamping press that retains the two stamped parts and welds the two stamped parts together at least at one location in the course of the stamping operation with the beam of a laser.
Inventors
- 👤 Josef Landtwing
- 👤 Waldemar Hellwig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:42
CPC Classifications
B; B23; B23P; B23P23/00; B21; B21D; B21D28/00; B21D28/02; B21D28/22; B23K; B23K26/00; B23K26/0093; B23K26/20; B23K26/21; B23K26/22
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
74 words
A process for producing at least two joined-together stamped parts, comprising: stamping at least two stamped parts in stamping operation of a stamping tool in a stamping press that retains the two stamped parts; and welding the two stamped parts together at least at one location in the course of the stamping operation with the beam of a laser, the one location where the two stamped parts are welded together being at their edges.
Claim 2
Dependent Claim
74 words
A process for producing at least two joined-together stamped parts, comprising: stamping at least two stamped parts in stamping operation of a stamping tool in a stamping press that retains the two stamped parts; and welding the two stamped parts together at least at one location in the course of the stamping operation with the beam of a laser, the one location where the two stamped parts are welded together being at their edges.
Claim 3
Dependent Claim
22 words
A process according to claim 1, wherein the location where the two stamped parts are welded together is at superposed surfaces thereof.
Claim 4
Dependent Claim
47 words
A process according to claim 1, wherein the two stamped parts are combined into a stack wherein adjacent parts in the stack have superposed edges, and further comprising another location of the welding, the one and another locations being at opposite sides of the two stamped parts.
Claim 5
Dependent Claim
29 words
An apparatus for carrying out the process according to claim 1, wherein the laser is a pulsed laser controlled in dependence on the stamping operation of the stamping press.
Claim 6
Dependent Claim
19 words
An apparatus to claim 4, wherein the laser is mounted on one of the stamping press and stamping tool.
Claim 7
Dependent Claim
31 words
An apparatus according to claim 4, and further comprising a focusing device for the laser beam fastened to the stamping tool, and a light-guiding cable connecting the laser and focusing device.
Claim 8
Dependent Claim
21 words
An apparatus according to claim 4, and further comprising a reflection device for the laser beam fastened to the stamping tool.
Claim 9
Dependent Claim
21 words
An apparatus according to claim 4, and further comprising arrangement means for holding the laser and for adjusting the laser beam.
Claim 10
Dependent Claim
22 words
A process according to claim 1, wherein the location where the two stamped parts are welded together is at superposed surfaces thereof.
Claim 11
Dependent Claim
47 words
A process according to claim 1, wherein the two stamped parts are combined into a stack wherein adjacent parts in the stack have superposed edges, and further comprising another location of the welding, the one and another locations being at opposite sides of the two stamped parts.
Claim 12
Dependent Claim
47 words
A process according to claim 2, wherein the two stamped parts are combined into a stack wherein adjacent parts in the stack have superposed edges, and further comprising another location of the welding, the one and another locations being at opposite sides of the two stamped parts.
Claim 13
Dependent Claim
47 words
A process according to claim 9, wherein the two stamped parts are combined into a stack wherein adjacent parts in the stack have superposed edges, and further comprising another location of the welding, the one and another locations being at opposite sides of the two stamped parts.
Claim 14
Dependent Claim
31 words
An apparatus according to claim 5, and further comprising a focusing device for the laser beam fastened to the stamping tool, and a light-guiding cable connecting the laser and focusing device.
Claim 15
Dependent Claim
21 words
An apparatus according to claim 5, and further comprising a reflection device for the laser beam fastened to the stamping tool.
Claim 16
Dependent Claim
21 words
An apparatus according to claim 6, and further comprising a reflection device for the laser beam fastened to the stamping tool.
Claim 17
Dependent Claim
21 words
An apparatus according to claim 13, and further comprising a reflection device for the laser beam fastened to the stamping tool.
Claim 18
Dependent Claim
21 words
An apparatus according to claim 5, and further comprising arrangement means for holding the laser and for adjusting the laser beam.
Claim 19
Dependent Claim
21 words
An apparatus according to claim 6, and further comprising arrangement means for holding the laser and for adjusting the laser beam.
Claim 20
Dependent Claim
21 words
An apparatus according to claim 16, and further comprising arrangement means for holding the laser and for adjusting the laser beam.
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) | 1994-09-30 | 1995-04-01 | 1995-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-09-30 | 1999-04-01 | 1999-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-09-30 | 2003-04-01 | 2003-10-01 | $7700.00 | Window Closed / Lapsed |