International Scientific Journals
of Scientific Technical Union of Mechanical Engineering "Industry 4.0"

In the paper is presented a study regarding the influence of different factors on the roughness of machined surfaces obtained by manufacturing process of flat grinding. The workpieces that were used on the experimental tests were radial bearing ring with needles made of steel hardened to 60-64 HRC. It were taken into consideration factors like, the size of the machined surface, the traverse speed, the grain size of abrasive grinding wheels, cutting fluid.
During the experiments was used the method of the Box-plot graphical representation that aims to observe and characterize the distribution of values obtained on these tests.

The heat released during the grinding process is directly proportional to the size of the forces developed in the cutting process, which depend on the nature and mechanical properties of the workpiece material, the geometric parameters of the cutting tool, the properties of cutting fluids used during the machining process.
Experimental research has confirmed the hypothesis that an increase in cutting speed leads to an increase in the amount of heat released and consequently to an increase in the temperature of the workpiece when using the same temperature control system. The paper presents the identification of heat sources in grinding process, as well as the distribution of heat to the elements which are part of the processing system.