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

Table 2

Specification of the chemical composition investigation results for the surface layer after the alloy steel 1H18N9 electrode alloying; pulse current I = 32 (A), pulse Ti = 25 (μs), electrode material: 1H18N9.

18L	Si-K	Cr-K	Mn-K	Ni-K
pt1	0.39	5.91	1.09	2.64
pt2	0.35	5.47	1.38	2.60
pt3	0.37	3.59	1.14	2.02
pt4	0.33	4.85	1.33	1.40
pt5	0.38	0.50	0.92	0.00
pt6	0.25	0.38	0.51	0.16
pt7	0.28	0.29	0.75	0.15
pt8	0.42	0.09	1.20	0.44
pt9	0.36	0.24	0.63	0.53
pt10	0.35	0.19	1.05	0.04