Selection and design of tools for finishing machining of seal grooves of hydraulic cylinders

Abstract

The most important operating performance parameters of machine components such as tightness, wear resistance, durability, and corrosion resistance largely depend on the state of their surface layer, determined by the parameters of machine processing during manufacturing. Selection of the technique for final machining of machine components is a rather difficult task, since, despite the large amount of information on technological support of the surface layer parameters, there are practically no recommendations on the quantitative estimates of the parameters of performance properties achieved in this case. Reliable functioning of hydraulic systems, their durability, and, consequently, reliable functioning and durability of the drilling rig, depend on the quality of the surface of the seal grooves. At present, turning is used for grooves machining, which in some cases does not provide the required quality indicators of the machined surface according to the surface roughness parameter. In this regard, an analysis of the possibilities of obtaining the required surface roughness using edge cutting machining techniques was conducted as well as other machining techniques ensuring uniformity of the surface roughness of seal grooves were analyzed. One of the promising processing techniques that can provide the required quality of the machined surface is a surface plastic deformation method. However, in order to use this method effectively, it is necessary to carry out an experimental study of the rolling process and determine processing conditions.