Determining Optimal Parameters of Grooves of Partially Regular Microrelief Formed on End Faces of Rotary Bodies

Abstract

The article considers the schemes of groove arrangement on a partially regular microrelief of type I with coaxial grooves formed on end faces of rotary bodies because of vibration. An analytical dependence was obtained to determine the relative area of a partially regular microrelief depending on the geometrical parameters of the V-shaped grooves. The parameters of the grooves formed at different distances from the center of rotation, with which the relative area of the partially regular microrelief will be the same, are determined. It is found that without adjusting the vibration amplitude of the deforming element, the relative area of the grooves will decrease significantly. The imprint radius of the deforming element and its influence on changes in the relative area of the vibrorolling are also found.

Determining Optimal Parameters of Regular Microrelief Formed on the End Surfaces of Rotary Bodies

“…The following symbols are also used in the block diagram: F k is the groove area formed on the rotary body end surface [30]; F sur is the end surface area, on which the regular microrelief is formed; F rm is the groove area formed on a regular microrelief, taking into account the overlap area;…”

“…The smallest area of contact with the liquid was provided by a microrelief represented by a plurality of holes of concave spherical shape. The area of triangular grooves, depending on the groove's geometric parameters and their location on the rotary body end surfaces, was calculated in [30].…”

Ensuring a Stable Relative Area of Burnishing of Partially Regular Microrelief Formed on End Surfaces of Rotary Bodies

“…Table 1 -Classification of partly regular microreliefs [24] by the location of the axial symmetry lines of the grooves the axis coincides the axis is shifted by 0. For microreliefs formed on the end surfaces of rotary bodies, the problem of providing the relative area of burnishing is solved for only one variant of grooves arrangement (position "a" table 1) and is considered in [25][26][27][28]. The author obtained an analytical dependence to determine the relative area of a partially regular microrelief depending on the geometric parameters of the V-shaped grooves.…”

“…1), mm 2 ; Fел2 is the element area of groove 2, mm 2 . The area of the PRMR groove element is determined in [26]:…”

Evaluating Some Functional Properties of Surfaces with Partially Regular Microreliefs Formed by Ball-Burnishing

“…Similar problems were addressed with regard to RMRs formed on the face surfaces of rotary bodies. In particular, the I st type of RMR that is characterized by traces with coaxial axes was considered in Nagit et al [20], and the II th type of RMR that is characterized by traces with axes shifted by 0.5 of the angular step were investigated in Dzyura et al [21,22].…”