Self-oscillations of the cutting cutters

Abstract

Abstract The design and construction of products that are subjected to variable forces during operation should be based on calculations of the dynamic properties of the structures being created. This applies most to structures that contain thin-walled elements. In this regard, the development of a reliable method for determining the own dynamic characteristics of cutting tools in the form of cutting circles and cutters is relevant.An engineering method for calculating the frequencies and forms of natural oscillations of disk cutting mills of variable thickness in the radial direction is considered. The results of the calculation were confirmed by the proposed method using data from experiments conducted using unique modern equipment. Thus, it was established that the proposed method can be applied to the analysis of the dynamic properties of the considered type of disk cutting tools and their design with the specified dynamic characteristics. The results obtained are necessary for evaluating the critical operating conditions of the mills under study.