Intelligent Testing and Analysis of Dissimilar Steel Welds for Industrial Throttle Flowmeter

Table 3

Specimen bending test.

No.	Bending test side bend D = 40 mm, α = 180°
	−1	−2	−3	−4
Specimen 1	No opening defect was found on the curved outer surface	A 1.6 mm long crack on the fusion line	A 3.1 mm long crack on the fusion line	Cracks with lengths of 1.5 mm, 2.8 mm, and 1.7 mm on the fusion line
Specimen 2	No opening defect was found on the curved outer surface	No opening defect was found on the curved outer surface	No opening defect was found on the curved outer surface	No opening defect was found on the curved outer surface
Specimen 3	No opening defect was found on the curved outer surface	A 9.3 mm long crack on the fusion line	A 8.1 mm long crack on the fusion line	Cracks with lengths of 2.3 mm, 4.0 mm and 1.0 mm on the fusion line
Specimen 4	No opening defect was found on the curved outer surface	A 9.3 mm long crack on the fusion line	A 8.1 mm long crack on the fusion line	Cracks with lengths of 2.3 mm, 4.0 mm and 1.0 mm on the fusion line