Algorithm of Evaluation of 3D Parameters of a Digital Surface Model

The article presents an algorithm for calculating the parameters of a digital model of a 3D surface in accordance with GOST-25178-2–2014.3267 “Geometrical Product Specifications (GPS)” on the example of a surface treated with an abrasive tool. Microgeometry of working surfaces of machine parts is an important factor in determining their durability, reliability, and efficiency in operation. The developed models enable control over the parameters of the treatment process at the stage of design of the technological process with the aim to ensure required geometric parameters of the machined surface. he problem is a relevant issue because surface microrelief characteristics determine the area of real contact, the coefficient of friction, the ability to hold lubricant, and the ability of the working surface to withstand wear under load. Optimization of microgeometry can result in reduced wear, improved efficiency, and increased reliability of mechanisms.