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Information × Registration Number 0225U000833, (0122U000403) , R & D reports Title Research of processes of processing of high-strength steels and alloys by tools with PNTM on the basis of KNB in ​​the conditions of dynamic loading popup.stage_title Дослідження процесів обробки високотвердих сталей та сплавів інструментами з ПНТМ на основі КНБ в умовах динамічного навантаження Head Klymenko Serhii A., д.т.н.Manokhin Andrii S., к.т.н. Registration Date 20-01-2025 Organization V. Bakul Institute of superhard material of the National Academy of Sciences of Ukraine popup.description1 Solving the problem of processing difficult-to-machine materials with intermittent cutting and shock load on the cutting tool through the use of superhard composite with high impact strength, the use of design parameterstool and optimization of cutting modes that reduce the magnitude of the shock pulse when cutting or machining surfaces of complex geometric shapes. popup.description2  Cutting tools with geometric parameters optimized by using bevel cutting with a radius cutting edge for machining under dynamic loading conditions has been developed. It has been shown that the characteristic average cut thickness are 15–30 μm for a single-edged cutter and 20–50 μm for a radius bevel tool under other identical conditions. It has been established that during machining with such tools under impact loads, the amplitudes of the vibration movements decrease by 1.75 times with an increase in the angle of inclination of the cutting edge from 0 to 60°. It has been established that the presence of an impulse load during impact machining of hardened steels significantly increases the probability of brittle fracture of tools with an 30° inclination, while the use of 40–50° angles during impact cutting, on the contrary, significantly reduces the probability of brittle fracture. Testing under impact processing conditions of tools equipped with a composite sintered from coated powders including 5%(wt) Ti showed that their performance significantly exceeds the performance of tools equipped with BL composites, and their wear resistance exceeds the wear resistance of tools equipped with Borsinite PCBN (BH). Product Description popup.authors Abramova Svitlana L. Beresniev Viacheslav M. Burykin Vitalii V. Klymenko Serhii A. Kovalenko Ihor A. Kopieikina Maryna Yu. Liamtseva Anna O. Manovytskyi Oleksandr S. Manokhin Andrii S. Melniichuk Yurii O. Mukovoz Serhii Yu. Naidenko Artem H. Ryzhov Yurii E. Chumak Anatolii O. popup.nrat_date 2025-01-20 Close