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12 Welding
Determining the Welding Time and the Welding Current for Welding Guns A 12
and A 12-FL
for drawn-arc stud welding without ceramic ferrule
Welding elements
Material:
4.8 (suitable for welding)
Diameter of welding elements
Welding
current
1)
Visar 650
I in A
Welding
time
1)
Visar 650
t in ms
metrisch imperial (US)
Stud
diameter
in mm
eff. diameter
in mm
Stud
diameter
in inches
eff. diameter
in inches
Material of workpiece: Mild steel (suitable for welding)
Ø d
1
Ø d
2
Ø d
1
Ø d
2
PS (US, IS)
3)
M3 4 1/8 0.157 400 10
PS (US, IS)
3)
M4 5 5/32 0.197 600 15
1)
to be checked by test weldings
3)
Information and recommendations on this can be found in DVS 0902.