Table 1.

Experimental plan of pre-tests.

Sample	Weld Process	Intensity (A)	Voltage (V)	Wire Feed (mm/min)	Travel Speed (mm/s)	Heat Input (kJ/mm)
1	Job1	60	15.4	65	20	0.037
2 1	Job1	60	15.4	65	20	0.037
3	Job1	60	15.4	65	9	0.082
4	Job2	86	16.4	85	9	0.125
5	Job2	86	16.4	85	6	0.188
6	Job2	86	16.4	85	4	0.282
7	Job2	86	16.4	85	2	0.564

¹ All the samples were made with one layer, except sample 2 which was made with two layers to solve errors.