Abstract
A dynamic model of the external turning of the screw workpiece outer edge is worked out. The differential equations of the system motion to determine the torsional and linear vibrations of a screw workpiece, a mandrel, and a cutter are deduced. Based on research analyses, the analytical dependences for determining the dynamic loads on the system are developed. The graphic dependences of variation value of cutting force in time are developed, as well as the angle change of screw workpiece deformation in time, and the linear deformation while turning the screw workpiece outer edge. The cutting conditions for turning the screw workpiece outer edge are experimentally specified. According to the results of the experimental study of turning L-shaped auger spirals, outer edges made of 30 Steel (eq. C 30), 20 Steel (eq. C 22), and Steel 08kp (eq. St14), the increase in cutting speed reduces the cutting force. The increase of cutting depth and feed leads to increased cutting force.
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Hevko, I., Diachun, A., Lyashuk, O., Vovk, Y., Hupka, A. (2021). Study of Dynamic and Power Parameters of the Screw Workpieces with a Curved Profile Turning. In: Ivanov, V., Trojanowska, J., Pavlenko, I., Zajac, J., Peraković, D. (eds) Advances in Design, Simulation and Manufacturing IV. DSMIE 2021. Lecture Notes in Mechanical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-030-77719-7_38
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