Methods of pressure treatment of metals based on the action of technological load in the conditions of a localized plastic cell. The main purpose of such methods is that the change in shape at any time is performed only on a fraction of the volume of the workpiece and when moving the deformation center covers the entire volume. These are well-studied and widely used in the production of free forging, rotary forging, rolling, etc. A relatively new method of MP - stamping by rolling, is characterized by a number of positive effects: - reduction of deformation force in comparison with traditional methods in 5-30 times; - the possibility of processing metal in the cold state with the same technological effort as in hot processing; - the equipment corresponds to a high level of labor safety; - reducing the size, weight and cost of equipment; - the possibility of implementing various technological operations. Modern mechanical engineering, instrument making and other metalworking industries widely use and manufacture parts with a large ratio of cross-sectional dimensions, the production of which by existing methods of metal forming is either inefficient or impossible. The most technological are the processes of SHO, in which the workpiece has a tubular or annular shape. Such blanks are well amenable to induction heating, which while providing a high frequency electromagnetic field allows them to be heated quickly and efficiently. This can heat a limited amount of workpiece material. Thus, the use of induction heating in the processes of SHO significantly expands their technological capabilities, which determines the relevance of the chosen topic. The main advantages of induction heating include: transmission of electrical energy does not require contact devices, is carried out directly into the workpiece, which increases the heating rate; due to the possibility of controlling the frequency of the current, the maximum power is released in the limited thickness of the surface layer of the product, which is especially effective when heating the pipe blanks; induction heating can increase productivity and improve working conditions.

The article presents the results of development and research of technological schemes of cold forming by rolling (CFR) of blanks. Expansion of the technological capabilities of the processes of COP and improving the quality of products is based on the control of active friction forces and deformability of the processed metals. The main limiting factors in the application of SHO processes are insufficient ductility of metals, which causes the risk of destruction of workpieces, as well as relatively large deformation forces that cause unfavorable operating conditions of the rolling bearing unit. The solution of these problems is facilitated by the transition to hot SHO. However, the problems of manufacturing by the hot SHO method of products from tubular and solid cylindrical billets have been little studied to date. An effective process of billets heating is induction heating, but its application is characterized by relatively low efficiency. In this work, it is recommended to use new materials and technology for the manufacture of induction heaters for the implementation of hot SHO, which open up opportunities for improving induction heating equipment for industrial applications. The use of new generation induction heaters to replace other heating methods in metalworking has significant advantages: higher efficiency; less scattered magnetic fields; less complexity of the coil design; increased geometric freedom; no water cooling is required. In order to study the hot SHO, devices for rolling billets with conical and cylindrical rolls were designed and manufactured. Physical modeling of hot SHO by using solid cylindrical lead billets was carried out. It is experimentally proved that the process of hot SHO allows to achieve significant degrees of deformation even at unfavorable stress-strain state and insignificant power of the equipment. Thus, the process of induction heating of blanks can be quite effective when processing them by hot SHO.