Improving the technology of manufacturing friction discs based on vibration loading and alternating bending

Particularly rigid parts are those in which one of the geometric parameters is much larger than all the others. The paper discusses various technologies and equipment for editing such rigid parts as friction discs. The outer diameter of the discs is tens or even hundreds of times larger than their thickness. Such design features create difficulties in their manufacture. The task of giving the correct shape to the part is more complicated than observing dimensional tolerances. Therefore, it is important for modern production to have technologies and equipment that would make it possible to shape the part and hold it for a long time. According to the authors of this work, this can be achieved solely by progressive editing. A distinctive feature of modern dressing technologies for non-rigid products is the creation of dynamic effects on their work surfaces. In the process of dressing, various types of microplastic deformations, including bending, are created on their working surfaces. The cyclic nature of the editing of parts creates conditions for the relaxation of residual stresses in the material of products, which favorably affects the stabilization of their geometric parameters over time. At the same time, during dynamic dressing of products in certain modes, there is no loss in the operational resource of the products. On the contrary, the correct shape of the products creates the conditions for increasing the durability of low-rigid products. An attempt is made to summarize information on the technology of editing friction discs based on studies performed by the authors of this work in different years. The article reveals the ways to improve the editing technology, in order to give the products the correct geometric shape.