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Subtract Simulators to Verify Hole-Making Precision of Control Programs: An Improvement in Computer-Aided Process Engineering Systems

2022; Springer Nature; Linguagem: Inglês

10.1007/978-3-030-85230-6_9

2195-4364

С. В. Сергеев, Yu. S. Sergeev, A. V. Kononistov,

Advanced Surface Polishing Techniques

The paper presents a novel concept of arranging the controllable processes of hole shaping by rotating multipoint tools such as drills, countersinks, reamers, etc. The concept is implemented as a program for precise simulation, verification, and real-time visualization of the dynamics hole-shaping process in ISO 7-bit. The program can be embedded in a package such as VeriCut, Sprut NCTuner, Siemens NX, etc., and is a digital twin of the machining process. Simulation is performed in the context of spontaneous redistribution of cut-layer cross-sections due to the synchronization (desynchronization) of high-frequency (relative to the rotation speed) transverse and axial vibrations of the multipoint tool. It also takes into account how vibration parameters are affected by the machining parameters. Aside from visualizing the cutting process, the program can compute the stock removed by each cutting edge, or the total stock removed, i.e., the total bulk of the material removed from the workpiece, where the size and shape of the outer surface reflect the shaped surface of the part. Therefore, before the control program is tested on a real CNC machine, it must be optimized for hole-size and longitudinal-shape precision by means of the same simulator. Optimization is done by controlling the cutting parameters to alter the radial-to-axial vibration ratio. This redistributes the volume of layers cut by each tool tooth, which immediately affects the geometry of the part surface, i.e., the hole-size and longitudinal-shape precision.