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- W4377083945 abstract "Purpose to work: to study the dynamic process of drilling with step drills in difficult-to-machine body parts of complex shape. The effective ways to improve the processing are suggested. Methodology: to create a mathematical model of drilling a hole in the part by the finite element method and to analyze the machining process by varying the different parameters of the cutting modes. Results: the analysis of the factors influencing cutting process is done. The advantages of using a step drill when machining holes in complex, difficult-to-machine parts are substantiated. A mathematical model of the finite element drilling process has been developed. The dynamic drilling process according to different variation of cutting mode parameters is investigated and the data on tool movement and stresses arising in the process of work piece processing are obtained. The results obtained indicate that as the cutting speed increases due to the increase in forces, the forces acting on the drill in the axial direction increase. Thus, due to the properties of the feed drive, increasing the feed rate of the tool, it also increases the cutting forces, as well as the thermodynamic loading of the drill, which reduces its stability. The locations of the largest stresses on the cutting edges of the drill have been identified, which can affect the quality of the resulting hole, the strength and stability of the drill. Scientific novelty: the mathematical model of processing of a difficult detail by a step drill is developed. Practical significance: recommendations on the use of step drills and the possibility of increasing the stability of the tool and the accuracy of processing." @default.
- W4377083945 created "2023-05-20" @default.
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- W4377083945 date "2020-01-01" @default.
- W4377083945 modified "2023-10-05" @default.
- W4377083945 title "IMPROVING THE EFFICIENCY OF TREATMENT OF HOLES WITH STEPS DRILLS IN THE PROCESSING OF HOUSING PARTS" @default.
- W4377083945 doi "https://doi.org/10.31474/2308-5312-2020-1-14-61-67" @default.
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