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5. Properties
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Process
• Wide range of weldable thicknesses from a few millimeters to 100 mm.
• Preparation by mechanical machining with low precision (10% thickness deviation permissible).
• Butt-jointed sheets without chamfer.
• No chemical pickling before welding for light alloys.
• Possibility of welding different materials.
• Welding in a single pass over the entire thickness, or in two opposing passes for thicker sheets.
• No consumables, filler metal or gas shielding.
• Corner and "T" welding.
• Overlap and clinch welding.
• Welding in any position.
• Simplified production of difficult assemblies using...
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Properties
Applications
Bibliography
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Organizations
Most of the data concerning the process can be found at the British Welding Institute, TWI, and the French Welding Institute, IS.
The process is currently the subject of numerous research and development programs financed by companies and institutes, some of which are French (aeronautics, railways, etc.). They cover all aspects of the process: scientific, technological, economic and practical. All...
Websites
The following websites may also be consulted:
http://www.twi.co.uk of the TWI Institute (Great Britain).
http://www.eurostir.co.uk on the EUROSTIR program, part of the EUREKA framework on the process. The Eurostir...
Machine builders
(non-exhaustive list)
The main manufacturers of friction stir welding machines are listed below.
Figures 1 ,
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