21
9 Welding Process
©Walter Stauffenberg GmbH & Co. KG
All rights reserved – Reprinting, in whole or in part, only with the approval of the manufacturer
Variants of drawn-arc stud welding
Item
Drawn arc stud
welding with ceramic
ferrule
Drawn arc stud wel-
ding with shielding
gas
Short-cycle drawn
arc stud welding with
shielding gas
Capacitor discharge
drawn arc stud welding
Diameter
welding element d
metric in mm
(imperial)
3 - 25
(#4 or 12 gage to 1“)
3 - 12 (16)
(#4 or 12 gage to 1/2“
(5/8“)
3 - 12
(#4 or 12 gage to 1/2“)
2 - 8
(14 gage to 5/16“
Max. current I in A
3 000
2 500
1 500
5 000
Welding time t in ms 50 - 2 000
50 - 2 000
5 - 100
3 - 10
Energy source
Welding rectifier
Welding transformer
Inverter
Welding rectifier
Welding transformer
Inverter
Welding rectifier
Inverter
Capacitor
Weld pool protection Ceramic ferrule CF
Shielding gas SG
Shielding gas SG
No protection NP
No protection NP
Material welding
element
4.8 (suitable for welding)
A2-50
Aluminium
(up to 12 mm/0.47“)
4.8 (suitable for welding)
A2-50
Aluminium
(up to 12 mm/0.47“)
4.8 (suitable for welding)
A2-50
Brass
(with shielding gas)
4.8 (suitable for welding)
A2-50
Aluminium, brass, copper
Workpiece surface
Metallic bright
(rolling skin, rust film)
Metallic bright
(rolling skin, rust film)
Metallic bright,
galvanised, light oiled
Metallic bright,
galvanised, light oiled
Min. thickness of
workpiece
1/4 d
min. 1 mm (0.04“)
1/8 d
min. 1 mm (0.04“)
1/8 d
min. 0.6 mm (0.02“)
1/10 d
min. 0.6 mm (0.02“)
Adjustable
parameters
Welding current
I in A = 80 x d
(up to 16 mm/0.63“)
Welding current
I in A = 80 x d
(up to 16 mm/0.63“)
Welding current
I in A = 100 x d
(up to 12 mm/0.47“)
Charging voltage
Welding time
t in ms = 20 x d
(up to 12 mm/0.47“)
Welding time
t in ms = 20 x d
(up to 12 mm/0.47“)
Welding time
Ignition point / lift
Lift
(arc length)
Lift
(arc length)
Lift
(arc length)
Spring pressure
(plunging speed)
Plunging depth
Plunging depth
Plunging depth
Plunging depth