Залежність залишкових напружень в поверхні виробу від умов різання при торцевому фрезеруванні

Presented in the article information is an overview. It discusses residual stresses occurred in the surface during face milling. Face milling is one of the most effective machining processes that provides high accuracy and quality of flat surfaces of products. However, this process is accompanied by the occurrence of internal residual stresses. They can be either compressive or tensile. Tensile stresses can negatively affect the performance of products and should be avoided. This article presents an analysis of research results that describe the mechanisms of formation and prediction of residual stresses during milling, as well as methods for their detection and other auxiliary control methods. An analysis of recent research and publications has shown that the mechanism of residual stress formation and its level during face milling depends on many factors, such as the type of tool material, cutting modes, and material properties of the workpiece. However, the influence of the interaction of these factors, the nature of residual stresses in the material microstructure, and ways to effectively manage them to ensure the desired characteristics of finished products remain insufficiently studied. The purpose of the article is to study the mechanisms of internal stress formation and their level as a result of face milling of flat surfaces. It has been established that for most tool materials, tensile residual stresses are formed at low cutting speeds at high cutting forces. At medium cutting speeds, maximum cutting forces increase the plastic deformation, contributing to the formation of compressive residual stresses in deeper layers, but can increase the risk of surface damage. At high cutting speeds, a decrease in residual stresses was found and they moved to a neutral state. Increasing the feed rate resulted in higher forces and, as a result, tensile residual stresses. Tool wear increased the force. As a result, the resulting residual stresses changed from compressive to tensile, which increased as the tool wore.