MIDWEST FASTENERS CD80, Owner'S Manual

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©2001
MIDWEST FASTENERS, INC.
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CD 80 Stud Welder 7
CD STUD WELDING
The CD stud welding process produces weld power through a rapid
discharge of the stored energy from a bank of capacitors. This stored
energy is usually derived from a standard 115 volt AC source. CD stud
welding, as a general rule, is used for studs 5/16" and less in diameter,
(or where thin base metals or dissimilar metals are to be joined.)
“CD” STUD WELDING PROCESS
The ARC stud welding process produces weld power through one of three
standard DC welding power sources. These are Transformer-Rectifier type,
Motor/ Generator type, or Storage Battery type. A ceramic ferrule is
required in ARC stud welding to maintain the proper atmosphere in the
weld area. ARC stud welding is generally used for studs over 1/4" in
diameter or where heavier base metals are involved.
“ARC” STUD WELDING PROCESS
ARC STUD WELDING
1. Stud is placed against workpiece
and weld gun trigger depressed
2. Stored energy is discharged
through special tip
3. Weld gun forces stud
into molten metal
4. Weld solidifies in
miliseconds
1. Stud is placed against workpiece
and weld gun trigger depressed
2. Stud is lifted by weld gun
and initiating arc is drawn
3. Weld gun forces stud
into molten metal
4. Weld solidifies and
ferrule is removed