Multi-objective optimization of process parameters for ultrasonic rolling extrusion of 42CrMo material

Open Access

Table 3

Orthogonal test results of ultrasonic rolling extrusion.

Number	n/(r/min)	v/(mm/min)	A/µm	F/N	R_a/µm	RS/MPa	N_H/%
1	130	15	5	200	0.665	–901	1.083
2	130	25	10	280	0.524	–983	1.105
3	130	30	15	350	0.456	–1031	1.123
4	130	40	20	480	0.382	–1113	1.138
5	130	55	25	600	0.333	–1153	1.142
6	250	15	10	350	0.536	–1028	1.117
7	250	25	15	480	0.435	–1092	1.132
8	250	30	20	600	0.382	–1160	1.153
9	250	40	25	200	0.559	–940	1.135
10	250	55	5	280	0.539	–939	1.093
11	340	15	15	600	0.432	–1151	1.143
12	340	25	20	200	0.614	–937	1.137
13	340	30	25	280	0.519	–1012	1.142
14	340	40	5	350	0.524	–971	1.096
15	340	55	10	480	0.424	–1064	1.123
16	490	15	20	280	0.586	–997	1.142
17	490	25	25	350	0.500	–1053	1.151
18	490	30	5	480	0.493	–1038	1.103
19	490	40	10	600	0.415	–1116	1.126
20	490	55	15	200	0.597	–907	1.122
21	630	15	25	480	0.477	–1121	1.155
22	630	25	5	600	0.471	–1082	1.107
23	630	30	10	200	0.671	–898	1.103
24	630	40	15	280	0.553	–979	1.122
25	630	55	20	350	0.479	–1019	1.134

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