The objective of this study was an analysis of the thickness of a plasticized zone that appears after surface burnishing of machine parts with a non-deformable roller of a torus contour. A function defining the plasticized zone thickness depending on burnishing parameters was determined. M. T. Huber's hypothesis of plastic deformation was used in the solution. It was found that the thickness of the plasticized zone depends principally on the pressure force and yield point, and it is insignificantly dependent on the geometrical dimensions of the workpiece and burnishing roller.

The volume of combustion chamber consists of head and cylinder spaces. The distribution of volumes in the cylinder depends on accuracy of dimensions, determined by the production process, and precision of the crankshaft system assembling. Therefore, the aim of this work is to present a correct method of assembling, and give an example of analysis of crankshaft system dimensions based on the engine family type Wola-135TC.