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

Figure 14

Stereometric image of the surface subjected to the: (a) EDM: cooper electrode, I = 32 (A), Ti = 800 (μs); (b) EDA: 1H18N9 electrode, I = 32 (A), Ti = 3200 (μs); (c) EDA + roto peen; 𝑛=4100 (rev/min), 𝑡=75 (s).

(a)

(b)

(c)