GB665360A - Improvements in or relating to electric welding - Google Patents
Improvements in or relating to electric weldingInfo
- Publication number
- GB665360A GB665360A GB30400/48A GB3040048A GB665360A GB 665360 A GB665360 A GB 665360A GB 30400/48 A GB30400/48 A GB 30400/48A GB 3040048 A GB3040048 A GB 3040048A GB 665360 A GB665360 A GB 665360A
- Authority
- GB
- United Kingdom
- Prior art keywords
- welding
- work
- initial pressure
- armature
- electromagnet
- 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
- B23K11/10—Spot welding; Stitch welding
- B23K11/11—Spot welding
-
- 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
- B23K11/241—Electric supplies
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Resistance Welding (AREA)
Abstract
665,360. Electric welding. IGRANIC ELECTRIC CO., Ltd. Nov. 23, 1948 [Dec. 6, 1947], No. 30400/48. Class 83 (iv). In a method of welding by the application of pressure to the work and by the passage of an electric welding current through the work, the pressure is obtained heat least in part from t force of an electromagnet through the winding of which some or all of the welding current is fed. The work 12a is arranged between a lower stationary welding-electrode 10 and a co-operating upper electrode 11, insulated from and carried on, a supporting lever hinged to the frame 13. The lever forms an armature for an electromagnet 14. Part of the unbalanced weight of the armature 15 may be counterbalanced by means of a spring (not shown) or other means when it is desired to limit the initial pressure of the movable electrode on the work. When it is desired to increase the initial pressure the magnet may be provided with a supplemental biasing coil (not shown). Current is supplied to the electrodes by a transformer 16, the connection from the secondary winding thereof to the stationary electrode being through an energizing winding 18 for the magnet hole 19. An adjustable impedance 20 may, if desired, be used to shunt the energizing winding 18. In welding a slight initial pressure is exerted upon the work parts 12, 12a, by the unbalanced weight of the armature, which may be augmented by a hand or foot lever connected to the armature 15; thereupon, the welding- transformer is energized so that the adjacent work faces are caused to melt and simultaneously a flux is produced in the electromagnet which pulls the movable electrode 11 towards the stationary electrode 10 and increases the degree of completeness of contact between the parts to be welded. Primary circuits for the transformer are described utilizing an alternating current source and also a simpler circuit with a battery and capacitor. The electromagnet may also be arranged to oppose the initial pressure where a relatively high initial pressure to be subsequently reduced is required.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US665360XA | 1947-12-06 | 1947-12-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB665360A true GB665360A (en) | 1952-01-23 |
Family
ID=22070135
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB30400/48A Expired GB665360A (en) | 1947-12-06 | 1948-11-23 | Improvements in or relating to electric welding |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB665360A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005075139A1 (en) * | 2004-02-05 | 2005-08-18 | Abb Ab | Spot weld gun |
-
1948
- 1948-11-23 GB GB30400/48A patent/GB665360A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005075139A1 (en) * | 2004-02-05 | 2005-08-18 | Abb Ab | Spot weld gun |
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