The United Engine Corporation (UEC) on its Telegram channel has for the first time shown the process of rotational friction welding. Heating is carried out in a thin surface layer of materials.
The high temperature required for welding is generated by the friction of surfaces under the action of rotation of one of the parts and simultaneous compression force.
The footage shows how, during rotation, the most plastic parts of the metal being processed are squeezed out of the joint between the parts. The welding moment occurs after the rotation stops, when an additional compression force is applied to the part.
The technology allows welding dissimilar materials, including those that cannot be joined by traditional fusion welding.
The method of rotational and linear friction welding are critical technologies in modern engine construction. Friction welding technologies reduce the weight and increase the service life of aircraft engines without reducing the strength of welded joints.
Earlier, www1.ru reported that new Russian aircraft with a flying wing design will be 20% more economical than traditional airliners.
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