JPS56151183A - Welding method for painted steel plate - Google Patents
Welding method for painted steel plateInfo
- Publication number
- JPS56151183A JPS56151183A JP5511480A JP5511480A JPS56151183A JP S56151183 A JPS56151183 A JP S56151183A JP 5511480 A JP5511480 A JP 5511480A JP 5511480 A JP5511480 A JP 5511480A JP S56151183 A JPS56151183 A JP S56151183A
- Authority
- JP
- Japan
- Prior art keywords
- steel plate
- painted
- welding
- broken down
- plate
- 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.)
- Granted
Links
- 229910000831 Steel Inorganic materials 0.000 title abstract 11
- 239000010959 steel Substances 0.000 title abstract 11
- 238000003466 welding Methods 0.000 title abstract 8
- 238000000034 method Methods 0.000 title 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 abstract 3
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000010422 painting Methods 0.000 abstract 1
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
- B23K11/16—Resistance welding; Severing by resistance heating taking account of the properties of the material to be welded
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Resistance Welding (AREA)
Abstract
PURPOSE:To perform high-performance welding of painted steel plates by superposing a nonpainted steel plate on the electrode pressurizing surface of painted steel plates and subjecting these to series welding. CONSTITUTION:Series spot welding electrodes 4a, 4b are approached to a backing bar 3 to pressurize painted steel plates 1, 2 and a mild steel plate 5 and further series welding current is applied to the electrodes 4a, 4b. Then, the welding current flows along the mild steel plate 5 by the loop shown by A1 and gradually the mild steel plate 5 is heated, thereby the adjacent painting film 1a is broken down. When the painted film 1a is completely broken down, the plate 5 and the steel plate 1 conduct directly and the welding current passes through the plate 5 and reaches the steel plate 1, thereby forming a loop shown by A2. Next, it begins to heat the steel plate 1, and when the heating temp. reaches constant temp., the painted film 1b is successively thermally broken down to the painted film 2a of the steel plate 2, thereby electrically conducting the steel plates 1, 2 and forming a loop of A3 in the steel plate 2. Thereafter, the painted film 2b is broken down in the similar manner, whereby A loop of A4 is formed between the same and the backing bar 3 and welding is accomplished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5511480A JPS56151183A (en) | 1980-04-24 | 1980-04-24 | Welding method for painted steel plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5511480A JPS56151183A (en) | 1980-04-24 | 1980-04-24 | Welding method for painted steel plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56151183A true JPS56151183A (en) | 1981-11-24 |
| JPS6324796B2 JPS6324796B2 (en) | 1988-05-23 |
Family
ID=12989718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5511480A Granted JPS56151183A (en) | 1980-04-24 | 1980-04-24 | Welding method for painted steel plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56151183A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011050977A (en) * | 2009-08-31 | 2011-03-17 | Jfe Steel Corp | Indirect spot welding method |
| JP2013052413A (en) * | 2011-09-05 | 2013-03-21 | Jfe Steel Corp | Resistance spot welding method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08195098A (en) * | 1995-01-17 | 1996-07-30 | Nec Corp | Flash memory device |
-
1980
- 1980-04-24 JP JP5511480A patent/JPS56151183A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011050977A (en) * | 2009-08-31 | 2011-03-17 | Jfe Steel Corp | Indirect spot welding method |
| JP2013052413A (en) * | 2011-09-05 | 2013-03-21 | Jfe Steel Corp | Resistance spot welding method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6324796B2 (en) | 1988-05-23 |
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