LOOK ON FRICTION OF SLIPPING FROM THE POINT OF VIEW OF THE MECHANICAL CHARACTERISTICS OF THE MATERIAL
The article discusses the force of friction sliding. This friction force can be of 2 types: friction of rest and friction of movement. The coefficient of sliding friction depends on the mechanical characteristics of the material. The nature of sliding friction is associated with compressive deformations - tension, shear and shear, collapse, as well as the destruction of the material under the action of these strains. This all refers to sliding friction when moving. As for the rest friction, here it is necessary to additionally take into account the forces of intermolecular adhesion. The sliding friction force has a complex physical and technical nature, which requires taking into account many different factors, such as the design of a kinematic pair, the state of the material surface, the actual contact area, etc. Therefore, it is of interest to obtain the magnitude of the sliding friction force, at least approximately, for approximate technical calculations (the exact value requires the use of tribonics methods). The article presents such a dependence on the basis of the mechanical characteristics of the material, which is in good agreement with other sources of information.