The work is devoted to the question of lowering the cost of production engineering products by reducing the costs of technological training. The possibility of cutting mode selection based on the quality of the processed parts using the proposed methodology for determining the roughness, elastic deformation of the item in the process of mechanical machining non-rigid parts of machines and technological level of residual stresses. The algorithm search automation rational cutting mode a brute-force attack all possible combinations of milling with calculation mode settings for each of the required quality parameters. Shows his work in appointing cutting mode for accommodative wall milling on aluminum alloy billet D16T.

The possibility of improving the quality of holes in complex packages of composite materials and titanium alloys for drilling operations by using the energy of ultrasonic vibrations introduced into the processing zone is considered. The design of two experimental installations based on a vertical drilling machine and an industrial robot is described.

The paper presents the results of numerical experimental studies of cutting titanium blanks using mathematical modeling programs, which make it possible to completely repeat technological processes in a computer (digital twin). The LS-DYNA product was used as a program to simulate the process of stock removal from titanium blank. It has been established that the use of this method adequately describes the cutting processes, including with the introduction of the energy of an ultrasonic field into the processing zone, can significantly reduce the duration of experimental research and evaluate the influence of the elements of the cutting mode and design parameters of the tool on the thermal power aspects of the formation of new surfaces of machine parts.

The possibility of improving the quality of holes in complex packages made of composite materials and titanium alloys in the drilling operation by using the energy of ultrasonic vibrations introduced into the treatment zone is considered. The construction of complex packages and the problems arising from their processing with an axial tool are described. The rational design of the experimental setup for testing the technology of ultrasonic drilling of small-diameter holes was chosen. The unit is based on the KUKA KR 16 R2100 robotic complex. In addition to the industrial robot, it contains a spindle attached to the robot; Ultrasonic head, dynamometer and table, on which the package made of composite materials and titanium alloys is fixed. Ultrasonic oscillations with a frequency of 22 kHz can be transmitted, depending on the execution of the installation, either to the spindle or to the table with a complex package. The device allows carrying out experiments with the imposition of unmodulated, amplitude-modulated or frequency-modulated ultrasonic vibrations on the drill or on the object table with a package of composite materials.

The formation of computer models of hard-to-machine titanium alloy billet cutting by the example of drilling is considered. There are presented results of numerical investigations of hole drilling in titanium billets using mathematical modeling software allowing the full imitation of engineering processes in computer (a digital twin).