Surface Layer Properties after Successive EDM or EDA and Then Superficial Roto-Peen Machining

Figure 8

Specification of the resulting resistance to abrasive wear for friction with lubrication of the samples of tool steel NC10 machined by grinding and by the EDM: U = 80 (V), I = 48(A), Ti = 400 (μs), and EDM + roto-peen: 𝑛=5000 (rev/min), 𝑡=2.5 (min), and 𝑛=7000 (obr/min), 𝑡=5 (min).