GB654058A - Improvements in or relating to the spot welding of sheet aluminium or aluminium alloys - Google Patents
Improvements in or relating to the spot welding of sheet aluminium or aluminium alloysInfo
- Publication number
- GB654058A GB654058A GB1410847A GB1410847A GB654058A GB 654058 A GB654058 A GB 654058A GB 1410847 A GB1410847 A GB 1410847A GB 1410847 A GB1410847 A GB 1410847A GB 654058 A GB654058 A GB 654058A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aluminium
- per cent
- cleaning
- immersing
- effected
- 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
- 229910000838 Al alloy Inorganic materials 0.000 title abstract 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title abstract 2
- 239000004411 aluminium Substances 0.000 title abstract 2
- 229910052782 aluminium Inorganic materials 0.000 title 1
- 238000003466 welding Methods 0.000 title 1
- 238000004140 cleaning Methods 0.000 abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 abstract 2
- 238000005406 washing Methods 0.000 abstract 2
- JHWIEAWILPSRMU-UHFFFAOYSA-N 2-methyl-3-pyrimidin-4-ylpropanoic acid Chemical compound OC(=O)C(C)CC1=CC=NC=N1 JHWIEAWILPSRMU-UHFFFAOYSA-N 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 1
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
- 239000012153 distilled water Substances 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 239000011229 interlayer Substances 0.000 abstract 1
- 238000005554 pickling Methods 0.000 abstract 1
- 239000001488 sodium phosphate Substances 0.000 abstract 1
- 239000001117 sulphuric acid Substances 0.000 abstract 1
- 235000011149 sulphuric acid Nutrition 0.000 abstract 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 abstract 1
- 229910000406 trisodium phosphate Inorganic materials 0.000 abstract 1
- 235000019801 trisodium phosphate Nutrition 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
- B23K11/18—Resistance welding; Severing by resistance heating taking account of the properties of the material to be welded of non-ferrous metals
-
- 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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/226—Non-corrosive coatings; Primers applied before welding
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
Aluminium or aluminium alloy sheets particularly for aircraft are electrically spot welded by first cleaning the surfaces chemically or mechanically to reduce the surface resistivity then applying an interlayer to render the joints fluid-proof or corrosion resisting and then effecting the spot welds. Cleaning may be effected by first de-greasing in trichlorethylene vapour for three minutes then immersing in an alkaline cleaner such as M.O.S. Specification D.T.D. 901B, Appendix II or trisodium phosphate solution at 85 DEG C to 95 DEG C, then washing in cold running water, then immersing in a pickling solution of 10 per cent of sulphuric acid, 2 per cent of sodium dichromate and 0.1 per cent of hydrofluoric acid for three to six minutes at 140 DEG F, again washing first in cold running water and then in hot distilled water at 180 DEG F to raise the parts to such temperature and then drying in a heated air oven. The final cleaning may be effected by a wire brush rotated by a compressed-air motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1410847A GB654058A (en) | 1947-05-27 | 1947-05-27 | Improvements in or relating to the spot welding of sheet aluminium or aluminium alloys |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1410847A GB654058A (en) | 1947-05-27 | 1947-05-27 | Improvements in or relating to the spot welding of sheet aluminium or aluminium alloys |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB654058A true GB654058A (en) | 1951-06-06 |
Family
ID=10035131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1410847A Expired GB654058A (en) | 1947-05-27 | 1947-05-27 | Improvements in or relating to the spot welding of sheet aluminium or aluminium alloys |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB654058A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0153149A2 (en) * | 1984-02-15 | 1985-08-28 | Alcan International Limited | Metal pretreatment for resistance spot welding of aluminum |
| GB2186292A (en) * | 1986-01-21 | 1987-08-12 | Parker Chemical Co | Process for cleaning aluminium |
| US20160167150A1 (en) * | 2013-07-29 | 2016-06-16 | D.G. Weld S.R.L. | Method for coating, with metallic material, bodies made of spheroidal cast iron, and plans for moulds of machines for aluminium die casting made with said method |
-
1947
- 1947-05-27 GB GB1410847A patent/GB654058A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0153149A2 (en) * | 1984-02-15 | 1985-08-28 | Alcan International Limited | Metal pretreatment for resistance spot welding of aluminum |
| EP0153149A3 (en) * | 1984-02-15 | 1987-12-16 | Alcan International Limited | Metal pretreatment for resistance spot welding of aluminum |
| GB2186292A (en) * | 1986-01-21 | 1987-08-12 | Parker Chemical Co | Process for cleaning aluminium |
| GB2186292B (en) * | 1986-01-21 | 1990-02-14 | Parker Chemical Co | Process for cleaning aluminium |
| US20160167150A1 (en) * | 2013-07-29 | 2016-06-16 | D.G. Weld S.R.L. | Method for coating, with metallic material, bodies made of spheroidal cast iron, and plans for moulds of machines for aluminium die casting made with said method |
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