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

Figure 7

Microhardness distribution in surface layer for EDM U = 120 (V), I = 24 (A), Ti = 200 (μs), and machined by the EDM and roto-peen 𝑛=5000 (rev/min), 𝑡=5 (min).

(a)

(b)