Influence of Cr-Al-Si-N and DLC-Si Thin Coatings on Wear Resistance of Titanium Alloy Samples with Different Surface Conditions

Volosova, Marina A.; Lyakhovetsky, Maxim A.; Mitrofanov, Artem P.; Melnik, Yury A.; Okunkova, Anna A.; Fedorov, Sergey V.

doi:10.3390/coatings13091581

Cited by 1 publication

(3 citation statements)

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“…At the same time, as preliminary experiments and analysis of literature data [30,31] have shown, in the conditions of semi-finishing cutting, the defining element of tool wear is the wear chamfer on its rear surface. The analysis of the back surface wear profile performed in the study [14,28,31] showed that the lowest variability of the wear measurement results is characterized by the average back surface wear along the leading cutting edge. This parameter at constant values of the front and back angles of the cutting wedge reflects the dimensional wear resistance of the tool.…”

Section: Experimental Results and Their Discussionmentioning

confidence: 99%

“…The above properties determine the wear resistance of the cutting tool, i.e., the ability to resist the removal of its particles during contact interaction. Along with the requirements for the physical-mechanical and thermophysical properties of the tool material, a necessary condition for achieving sufficiently high cutting properties of the tool is a low physical and chemical activity of the tool material to the processed material, which is achieved by applying coatings [25][26][27][28].…”

Section: 𝑇 𝑙 𝑉mentioning

confidence: 99%

“…A considerable number of works [28,29] have been devoted to studies of temperature and methods of its measurement during metal cutting, in which it is shown that to obtain information about the average contact temperature during cutting with sufficiently high accuracy, simplicity, and reliability, it is possible to use the method of a natural thermocouple. In the research, this method was used to determine the average cutting temperature.…”

Section: 𝑇 𝑙 𝑉mentioning

confidence: 99%

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Effect of Surface Modification via Laser Irradiation on the Operability of Carbide End Mills When Cutting Aircraft Alloys

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et al. 2023

Coatings

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In modern aviation production, innovative hard-to-machine materials with unique physical and mechanical properties are being used increasingly. When processing such materials, the weakest link in the technological chain of production is the metal-cutting tool. In this paper, to improve the efficiency of the blade cutting of heat-resistant alloys, we propose the use of nanostructured multilayer wear-resistant coatings with subsequent laser processing of the cutting surfaces of the end milling cutters according to various schemes. In this case, an increase in the wear-resistant properties of the cutting edge by 15%–20% is provided due to the formation, at high temperatures, of secondary structures with increased wear resistance and a reduction of the temperature and force loading of contact processes. Methodologically, the work was carried out in several consecutive stages: the first stage was the determination of effective grades of wear-resistant coatings obtained via various installations with their subsequent laser processing during the «SharpMark™ Fiber» installation; at the second stage tribotechnical tests were carried out during the tribometer and adhesion installation; and in the third stage wear-resistant, temperature-force tests were carried out using milling machines in various cutting modes. According to the results of the field tests, the tool durability period was increased by 15%–20%.

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