Study of the working body mechanism in forging-and-stamping equipment

Introduction. The synthesized basic diagram of the frictional contact of solids in forging-and-stamping machines is considered. The possibility of obtaining the maximum load characteristics of the frictional contact within the variation interval of the friction factor is determined. The following two possibilities of frictional contact forces are indicated: they will be equal at the boundaries of the specified interval if there is maximum balance; they achieve the greatest stability under these conditions.Materials and Methods. When the angle value changes, the position of the maximum point changes. This causes violation of the friction forces balance at the boundaries of the variation interval of the friction factor. In this case, the accuracy coefficient should be determined by the ratio of the maximum of function to the least boundary value. Doing this requires establishing trends of changing the boundary function values associated with the angle variation. To solve this problem, a new value of the pressure angle tangent was presented as a product of the coefficient of variation by the base value of the angle tangent...