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MADI has developed a device for ultrasonic welding

Scientists from the department "Technology of structural materials" using the laboratory of electrophysical methods of processing of structural materials (LEFMO) MADI invented a device for ultrasonic welding and received a patent for a utility model. The team included Dmitriy Fatukhin, associate professor, PhD, Ravil Nigmetzyanov, associate professor, PhD, Sergey Sundukov, and post-graduate student Alexander Sukhov.

Development of additive technologies based on layer-by-layer deposition or spraying of material is one of the priority tasks of production all over the world. The utility model refers to technical means of mechanization of welding technological processes, including obtaining multilayer joints and additive manufacturing.

Metal foil is rolled by a roller, to which a normal force is applied. An ultrasonic oscillating system consisting of a transmitter and a concentrator waveguide creates movements of the roller in the direction transverse to the direction of its feed. As a result, the oxide film is destroyed at the point of contact of the foil sheets, plastic deformation occurs and heat is released, which is sufficient for the diffusion penetration of molecules of one metal into the other. The welding of the foil layers takes place. The workpiece, welded from the foil layers, is then milled, removing the excess metal.

The main advantages of the technology are the possibility of obtaining composite products of complex shape from heterogeneous materials such as steel, titanium, copper, etc.

In comparison with foreign analogues the device for ultrasonic welding has a simplified design and allows to increase the efficiency of welding and reduce energy costs.

The proposed utility model is a continuation of the pioneering developments of LEFMO MADI scientific school in the field of ultrasonic technological processes.