The Institute of Metal Physics has developed a novel unique technology of plastic deformation of round billets, caused by an external hydrostatic pressure on an inner mandrel. The pressure of the compressed fluid causes radial deformation of the tube, and the inner outline of the tube replicates the shape of the mandrel. Prototypes of different hollow products with hexagonal, square, splined and other cross-sections of variable length have been made and passed full-scale tests. The method and the devices for its implementation are covered with three patents.

When applied to manufacturing of precision blanks for machine components, this technology eliminates the procedures currently used for odd-shaped hollow products, such as casting, welding, and preliminary machining processes. The metal consumption is reduced by 40-60%; the energy consumption is reduced by 30-40%; and the labor intensity of the technology process is reduced by a factor of 1.5-2. In the process of manufacturing, hidden flaws are detected in the metal.