О ВОЗМОЖНОСТИ ПОВЫШЕНИЯ ПРОЧНОСТИ И ПЛАСТИЧНОСТИ ТИТАНОВОЙ ФОЛЬГИ С УЛЬТРАЗВУКОВЫМ УПРОЧНЕНИЕМ ЕЕ ПОВЕРХНОСТЕЙ
Based on the analysis of the literatary sources and experimental data, it is shown that titanium has specific physical and chemical properties, in particular high specific strength and ductility, low specific weight, corrosion resistance in many corrosive environments, the ability not to be magnetized, high heat resistance and low thermal conductivity, which are maintained in a wide temperature range, including cryogenic temperatures. The main consumer of titanium products are the military and aviation industries. Titanium is also widely used in shipbuilding, it is extremely popular in medicine. Currently, it is widely used in engineering, automotive, oil and gas industry, nuclear power, jewelry, construction, for the manufacture of light sports equipment, and harmless titanium dioxide is used as a pigment in paints, pharmaceuticals and pharmaceuticals, food industry products and other products. Therefore, at present, the demand
for titanium products is growing from year to year, and the world production of titanium sponge is increasing annually by 5 ... 7%. Based on the study and analysis of the results of well-known research on the development of technology for producing titanium billets, it is found that the possibilities of improving their physico-mechanical properties are not exhausted and conducting new research in this direction is an urgent task. In the paper, the possibility of improving the physicomechanical properties of titanium foil by additional bilateral hardening of its surfaces, an indenter oscillating with an ultrasonic frequency is substantiated. Schemes of devices for ultrasonic hardening of thin-walled machine parts have been developed.