The Influence of Shot Peening and Brushing on the Deburring Effectiveness and Surface Layer Properties of 1.0503 Steel

Burrs that often remain on the edges of the workpiece after machining require removal. The functional properties of manufactured parts can be improved via finishing treatments. The aim of this study was to assess the effectiveness of burr removal by brushing and shot peening and to determine the impact of these treatments on selected properties of the surface layer of 1.0503 steel elements. Brushing was conducted on a vertical machining center, FV580a, using a 120 mm diameter brush with wire fibers. The study showed brushing and shot peening to be effective burr removal methods. In the adopted processing conditions, brushing resulted in a slight improvement in the surface roughness by 11%, while shot peening caused the tested surface roughness parameters to increase several times compared to their values after initial milling processing. The results also demonstrated a significant increase in the microhardness around the edges of the samples after brushing and shot peening. After brushing the surface microhardness increased to HV0.3 = 390 and after shot peening it was HV0.3 = 306, which may have a positive impact on the durability of produced parts.