GB580794A - Improvements in and relating to fusion welding - Google Patents
Improvements in and relating to fusion weldingInfo
- Publication number
- GB580794A GB580794A GB17014/44A GB1701444A GB580794A GB 580794 A GB580794 A GB 580794A GB 17014/44 A GB17014/44 A GB 17014/44A GB 1701444 A GB1701444 A GB 1701444A GB 580794 A GB580794 A GB 580794A
- Authority
- GB
- United Kingdom
- Prior art keywords
- parts
- edges
- bevelled
- welding
- 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
- B23K33/00—Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
- Arc Welding In General (AREA)
Abstract
580,794. Uniting by fusion. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 6, 1944, No. 17014. Convention date, Sept. 13, 1943. [Class 83 (iv)] In a method of fusion welding, particularly of parts of magnesium, aluminium or their alloys which are readily oxidisable to form over the molten portion a refractory oxide skin, the parts which have or are bevelled on their upper sides to obtain contacting joining edges about #" thick, have the contacting edges smoothed and the lower halves thereof bevelled so that they are separated from one another by an amount sufficient to permit the edge portions of the parts at the joining edges, when fused, to drop down to form a reinforcement along the bottom edges without coming into contact with each other, heat being applied to the top surface of the edge portions to melt them and form a gap between the parts which is then filled with molten metal to complete the weld. Complete fusion at the bottom of the weld is thus obtained without excessive dropping down of the molten edges. Edges of about #" thick have contacting portions 20 and bevelled lower portions 21, the widest parts of which may be about 0.005-0.025" apart or the bevel may be up to an angle of 90 degrees. When thicker parts are being welded, the upper portion is first bevelled to bring down the thickness to about #" and the upper bevelled portion, after welding the other portion as previously described, is filled with weld metal in a series of passes. Welding may be effected by flame or by the electric arc, in the latter case in an atmosphere of helium or argon as described in Specifications 273,297 and 273,705, [both in Class 83 (iv)]. A tungsten electrode 10 surrounded by a gas chamber and a nozzle arranged at an angle of at least 60 degrees with respect to the electrode and through which a filler metal rod 17 of the same metal as the work is fed, are traversed along the line of weld. Welding of a #" sheet of an alloy containing 6 per cent of aluminium, 0.7 per cent of zinc, 0.2 per cent of manganese and the rest magnesium, may be effected with a 65 amp. current at 16¢ volts at a rate of 13" per minute. The parts may be held on supports 22, 23 with their bottom edges unsupported or arranged over a grooved backing member such as of stainless steel with a wide groove.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US580794XA | 1943-09-13 | 1943-09-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB580794A true GB580794A (en) | 1946-09-19 |
Family
ID=22014541
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB17014/44A Expired GB580794A (en) | 1943-09-13 | 1944-09-06 | Improvements in and relating to fusion welding |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB580794A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009072891A1 (en) * | 2007-11-09 | 2009-06-11 | Amr Engineering As | A method for joining tubes, rods and bolts |
CN106425291A (en) * | 2016-08-31 | 2017-02-22 | 浙江西子联合工程有限公司 | Demineralized water tank for high-temperature condensate water and manufacturing method thereof |
CN106624436A (en) * | 2016-11-21 | 2017-05-10 | 上海航天精密机械研究所 | Magnesium alloy welding wire suitable for laser wire filling welding and preparation method thereof |
-
1944
- 1944-09-06 GB GB17014/44A patent/GB580794A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009072891A1 (en) * | 2007-11-09 | 2009-06-11 | Amr Engineering As | A method for joining tubes, rods and bolts |
CN106425291A (en) * | 2016-08-31 | 2017-02-22 | 浙江西子联合工程有限公司 | Demineralized water tank for high-temperature condensate water and manufacturing method thereof |
CN106624436A (en) * | 2016-11-21 | 2017-05-10 | 上海航天精密机械研究所 | Magnesium alloy welding wire suitable for laser wire filling welding and preparation method thereof |
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