Modeling of dynamic stability of drilling process
The article presents the results of the drilling process. Experimental tests were carried out using solid carbide drill. Modal analysis of the tool setups, defined by their own frequency, lateral and torsional-axial modes, damping ratios and modal stiffness was carried out. Dependences have been obtained for calculating the number of spindle revolutions and the rigidity of cutting, the effectiveness of which has been proved by the results of the experiment. The stability lobes are calculated. The holes drilling process was conducted on the machining center in the aluminum alloy V95. The cutting forces were measured and spectral analysis was carried out. Results of the work permit simulation of the hole drilling process, on the basis of which cutting modes are assigned, which ensure a stable drilling process. The results of the work allow simulating the process of drilling holes. Assign cutting modes to ensure a stable drilling process.