ES467340A1 - Resistance welding - Google Patents
Resistance weldingInfo
- Publication number
- ES467340A1 ES467340A1 ES467340A ES467340A ES467340A1 ES 467340 A1 ES467340 A1 ES 467340A1 ES 467340 A ES467340 A ES 467340A ES 467340 A ES467340 A ES 467340A ES 467340 A1 ES467340 A1 ES 467340A1
- Authority
- ES
- Spain
- Prior art keywords
- welding
- electrodes
- waveform
- cycle
- weld
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/24—Electric supply or control circuits therefor
- B23K11/25—Monitoring devices
- B23K11/252—Monitoring devices using digital means
- B23K11/256—Monitoring devices using digital means the measured parameter being the inter-electrode electrical resistance
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arc Welding Control (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
An improved welding termination control unit, for use with a resistance welding machine that includes interrupting means that control the application of a succession of cycles of alternating current to welding electrodes and having an internal timer, which, in the absence of a prior completion of the welding by the control unit, it causes the interrupting means to operate to cause the welding current to end after a predetermined number of cycles, the control unit comprising: voltage sensitive means between the electrodes at a first instant in relation to each cycle of the waveform of the welding current, to detect a predetermined drop in the resistance of the material between the electrodes and, when such detection takes place, to operate the interrupting means for stop the application of welding current to the electrodes; a suspicious weld indicator; and characterized by means responsive to the waveform of the supply current between the interrupting means and the electrodes at a second instant with respect to each cycle of the waveform, above with respect to the cycle at said first moment, to detect the termination of that supply waveform and to cause the suspicious weld indicator to act if the resistive-sensitive means have not yet operated, whereby the weld indicator, suspect is operated only when the completion of the weld is produced by the machine timer. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8338/77A GB1564562A (en) | 1977-02-28 | 1977-02-28 | Resistance welding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES467340A1 true ES467340A1 (en) | 1978-10-16 |
Family
ID=9850626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES467340A Expired ES467340A1 (en) | 1977-02-28 | 1978-02-27 | Resistance welding |
Country Status (10)
| Country | Link |
|---|---|
| JP (1) | JPS583797B2 (en) |
| AT (1) | AT363561B (en) |
| AU (1) | AU514279B2 (en) |
| DE (1) | DE2808315A1 (en) |
| ES (1) | ES467340A1 (en) |
| FR (1) | FR2392760A1 (en) |
| GB (1) | GB1564562A (en) |
| NL (1) | NL7802096A (en) |
| NZ (1) | NZ186571A (en) |
| SE (1) | SE426920B (en) |
-
1977
- 1977-02-28 GB GB8338/77A patent/GB1564562A/en not_active Expired
-
1978
- 1978-02-24 NL NL7802096A patent/NL7802096A/en not_active Application Discontinuation
- 1978-02-27 DE DE19782808315 patent/DE2808315A1/en not_active Withdrawn
- 1978-02-27 ES ES467340A patent/ES467340A1/en not_active Expired
- 1978-02-27 NZ NZ186571A patent/NZ186571A/en unknown
- 1978-02-27 FR FR7805607A patent/FR2392760A1/en active Granted
- 1978-02-28 AU AU33695/78A patent/AU514279B2/en not_active Expired
- 1978-02-28 JP JP53021681A patent/JPS583797B2/en not_active Expired
- 1978-02-28 AT AT0142478A patent/AT363561B/en not_active IP Right Cessation
- 1978-02-28 SE SE7802263A patent/SE426920B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| JPS53106650A (en) | 1978-09-16 |
| AT363561B (en) | 1981-08-10 |
| AU514279B2 (en) | 1981-01-29 |
| SE7802263L (en) | 1978-08-29 |
| GB1564562A (en) | 1980-04-10 |
| FR2392760A1 (en) | 1978-12-29 |
| NL7802096A (en) | 1978-08-30 |
| FR2392760B3 (en) | 1980-11-21 |
| ATA142478A (en) | 1981-01-15 |
| NZ186571A (en) | 1982-05-25 |
| AU3369578A (en) | 1979-09-06 |
| JPS583797B2 (en) | 1983-01-22 |
| SE426920B (en) | 1983-02-21 |
| DE2808315A1 (en) | 1978-08-31 |
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