Actual Problems in Machine Building. Vol. 10. N 1-2. 2023 Innovative Technologies in Mechanical Engineering ____________________________________________________________________ 20 MANUFACTURE OF THIN-WALLED HEAT-RESISTANT NON-RIGID PARTS WITH MILLING CUTTERS COATED WITH SILICON AND TITANIUM NITRIDE 1Zhirukhin K.S., Engineer, e-mail: kirill.zhirukhin@haltec.ru 2Kiselev E.S., D.Sc. (Engineering), Professor, e-mail: kec.ulstu@mail.ru 1HALTEC-DoALL LLC, 1B Narimanova, Ulyanovsk, 432071, Russian Federation 2Ulyanovsk Technical State University, 32 Severny Venets st., Ulyanovsk, 432027, Russian Federation Abstract One of the methods to improve the productivity of processing thin-walled non-rigid parts from heat-resistant nickel-based alloys is using carbide monolithic milling cutters with a coating based on titanium-silicon. Purpose of the work is to establish the most effective type of modern wearresistant coating to improve the process efficiency and durability of the cutting tool when processing thin-walled heat-resistant non-rigid parts made of heat-resistant alloys. The paper investigates one of the methods for increasing the process efficiency of thin-walled non-rigid parts made of heat-resistant nickel-based alloys by using carbide monolithic cutters coated with titaniumsilicon. Methods. The studies were carried out on existing technological equipment in the conditions of machining departments engaged in the manufacture of non-rigid parts of aircraft with an assessment of time and economic costs when changing the elements of the cutting mode and the values of the allowances to be removed. Results and discussion. It has been established that the use of tools with new coatings increases the durability period compared to traditional ones based on titanium nitride AlTiN up to 60 times during roughing and semi-finishing processing. At the same time, the likelihood of warping is reduced and a significant increase in process efficiency is ensured. Keywords Wear-resistant coating, heat-resistant alloys, high-performance processing, resistance period, monolithic milling cutter.
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