employee
Perm, Perm, Russian Federation
employee
Perm, Perm, Russian Federation
graduate student
Perm, Perm, Russian Federation
BBK 345 Общая технология машиностроения. Обработка металлов
The study results of grinding the surfaces of gas turbine engine repair parts made of heat-resistant stainless steel EP-517SH with sprayed high-strength wear-resistant VKNA and VK-20KS coatings are considered in order to select the most effective abrasive tools. The effectiveness was evaluated based on the results of comparative studies of the quality parameters of the surface layer: roughness, cracking, tempering, peeling of the coating, pore formation, as well as the machining temperature when using grinding wheels made of fused alumina impregnated with molybdenum disulfide and without impregnation, made of green silicon carbide and el'bor borazon material. As a result of the study, it is found that the best quality of machining parts coated with VKNA and VK-20KS is achieved by using el'bor borazon circles.
grinding, coating, fused alumina, silicon carbide, el'bor borazon
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