Owner`s manual

6 ©2001 MIDWEST FASTENERS, INC. — CD 50 Stud Welder
WHAT IS STUD
WELDING?
Stud welding is a welding process where a “stud” (or similar metal part) is
instantaneously end-joined to a metal workpiece. This process involves the
same basic principles and metallurgical aspects as any other welding
process.
The equipment required to stud weld is composed of a direct current power
supply, a controller, a weld gun and cables to tie the system components
together. In most systems the power supply and controller are combined into
one unit called the “Welder.”
CD 50 STUD WELDING SYSTEM
(P/N: CDSW-050-01)
The stud welding process is as follows. The stud is placed in the collet of the
“Weld Gun” and then positioned against the workpiece. The weld gun trigger
is depressed and t
hrough operation of the stud welding controller and the
design of the stud, an arc is drawn which melts the base of the stud and a
proportionate area of the workpiece. The stud is then forced by the weld gun
into the molten pool and held in place until the metals resolidify. This high
quality fusion weld is completed in milliseconds.
There are two different stud welding processes:
• Capacitor Discharge (called “CD” for brevity) and
• Arc.
The difference between these two methods involves the power source used
to provide the welding current, the workpiece size, base material and the
stud design.
HOW DOES
CD STUD WELDING
DIFFER FROM
ARC STUD WELDING?
Controller
CDSW-050-00
Weld Gun
CDSG-201-06
Ground Cable
CDGC-200-15
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CD 50
P
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F
F
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C
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T
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G
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+ –
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D
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