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Author: Violeta Krcheva

  • TECHNOLOGIES

    Simulation of toolpaths and program verification of a CNC lathe machine tool

    • Violeta Krcheva
    • Marija Chekerovska
    • Sara Srebrenkoska
    Machines. Technologies. Materials., Vol. 17 (2023), Issue 2, pg(s) 76-79
    • Abstract
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    This paper presents the simulation and verification of programs created for the CNC Hitachi Seiki Seicos LIII lathe machine tool. The main purpose of program simulation and verification is to ensure the quality and accuracy of the cutting process, which can significantly improve production efficiency. In addition to defining the toolpath, simulation can perform linear and circular interpolation according to specific programs based on G – codes. Therefore, all the motions of the moving parts of the real lathe machine tool can be clearly visualized. The use of simulation is a good solution not only to precise the toolpath, but also verify the program and detect any possible collision between cutting tools and mobile components, before loading the program into the lathe machine tool and starting cutting processes.

  • MACHINES

    Dependance on the required power of the electric motor on the CNC Spinner EL-510 lathe according to the depth of cut for turning and facing with CNMG 120408-PM 4325 tool insert

    • Violeta Krcheva
    • Marija Chekerovska
    Machines. Technologies. Materials., Vol. 16 (2022), Issue 7, pg(s) 228-230
    • Abstract
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    •  Article PDF

    A lathe is a machine that removes metal from a workpiece to the required shape and size. A lathe operates on the principle of a rotating workpiece and a fixed cutting tool. The cutting tool is fed into the workpiece, which rotates about its own axis, causing the workpiece to be formed into the desired shape. The operation by which the excess material is removed from the workpiece to produce a cone or cylindrical shape is called turning, and the operation used to cut a flat surface perpendicular to the workpiece’s rotational axis is called facing. Speed, feed, and depth of cut are important factors that have to be determined according to the power of the CNC Spinner EL-510 lathe using a PCLNR 2525M 12 shank tool and a CNMG 120408-PM 4325 tool insert.

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