Experimental and Statistical Investigation of Machinability of AISI D2 Steel Using Electroerosion Machining Method in Different Machining Parameters

Table 3

Test parameters and output parameters obtained after processing.

No.	Ampere	Time on (μs)	Time off (μs)	Processing time (min.)	Wear amount (g)	Wear rate (g/min)	Surface roughness (μm)	Hole diameters (mm)	Crater diameter (μm)
1	2	200	20	192	0.421	0.0022	2.363	12.466	85.446
2	2	200	40	346	0.421	0.0012	2.149	12.462	83.790
3	2	200	60	387	0.367	0.0009	2.085	12.432	81.007
4	2	400	20	272	0.434	0.0016	3.394	12.565	104.556
5	2	400	40	422	0.336	0.0008	3.205	12.529	100.209
6	2	400	60	430	0.301	0.0007	3.191	12.039	96.151
7	2	600	20	270	0.547	0.0020	3.548	12.555	107.506
8	2	600	40	306	0.531	0.0017	3.430	12.010	105.901
9	2	600	60	378	0.604	0.0016	3.381	12.522	104.470
10	4	200	20	47	0.418	0.0089	3.659	12.503	109.953
11	4	200	40	67	0.380	0.0057	3.520	12.500	105.348
12	4	200	60	110	0.313	0.0028	3.456	12.464	104.916
13	4	400	20	63	0.395	0.0063	3.920	12.587	124.843
14	4	400	40	102	0.404	0.0040	3.880	12.525	123.893
15	4	400	60	155	0.349	0.0023	3.700	12.505	121.695
16	4	600	20	87	0.483	0.0056	4.714	12.656	143.165
17	4	600	40	138	0.452	0.0033	4.443	12.644	140.170
18	4	600	60	176	0.401	0.0023	4.083	12.551	137.911