Abstract
The regularities of friction during cutting are considered on the basis of the approaches of thermodynamics and the theory of self-organization. It is shown that the average coefficient of friction during cutting is significantly determined by the intensity of phase and structural transformations in the zone of secondary chip deformation, which affect the contact length, chip shrinkage, and its load-bearing capacity. From the standpoint of the theory of self-organization, friction during cutting should be considered as the storage of elastic deformation energy in the boundary layer and its dissipation through various mechanisms that cause wear of the cutting tool and self-oscillations during cutting. Keywords: metal cutting, secondary deformation, structural changes, plastic structures. uru.40@mail.ru
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