THEORETICAL ANALYSIS ON REGULARITIES OF THE PROCESS OF NOISE GENERATION OF PLANING, SLOTTING AND PLANING-MILLING MACHINES

The acoustic characteristics of the planing machines, which are the most widespread and the most noisy metalworking equipment, are considered. The article presents the theoretical models of the process of noise generation of planing, slotting and planing-milling machines. Regularities of sound pressure levels and sound power are obtained for brittle materials (cast iron blanks) mounted on the machine table. The regularities of the vibration velocities of the cutting tool and the workpiece are derived. The system of second-order differential equations is obtained for the version of the cantilever fixing of the planing cutter, using the developed approaches to the calculating vibrations and noise of machine equipment.