Table 5 Optimization results of welding parameters.

From: Prediction and optimization method for welding quality of components in ship construction

Sample number

Welding current/A

Arc voltage/V

Welding speed/(mm/s)

Wire elongation/(mm)

Inductance value/(H)

Welding gas flow/(L/min)

Predicted value/(Mpa)

Actual Residual stress/(Mpa)

1

150

21.2

7.34

0.162

158

21.2

97.56,634

104

2

154

20.6

7.455

0.173

162

20.9

102.71,648

107

3

150

21.8

7.365

0.165

153

21.5

95. 31,051

101