In manufacturing, cutting speeds are increasing significantly, thanks to the use of new tool materials with wear-resistant coatings, which is associated with increased vibration and hence reduced machining speed and precision. In end milling on heavy-duty machine tools, the milling depth greatly influences the vibrational stability of the cutting process. On the one hand, a multimass system with many degrees of freedom must be considered on account of the relatively massive mobile parts, the low rigidity of the parts and the mobile and immobile joints, and discrepancy between the centers of rigidity and the centers of mass. On the other hand, with certain parameter combinations, the gaps in the kinematic pairs close on account of the impact character of the end-milling processes, the nonsteady magnitude and direction of the components of the cutting forces, and the displacement of the point of application of the cutting force. There has been extensive research on means of reducing the vibration of milling machines, the influence of forced oscillations of milling machines on the machining precision, and improvement in the dynamic characteristics of the machines [1-3]. One means of increasing the productivity of rough end milling is to increase the cross section of the cut layer by changing the traditional distribution of the milling force between the teeth. In the present work, we consider the possibility of increasing the productivity by reducing the vibration, as a result of designing the milling machine so as to subdivide the cut over the width.
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