Image Industries CD 110 Operation Manual page 14

Section 3
WELD QUALITY
Visual Inspection
Too Hot
Excessive weld flash
and weld spatter.
This weld may break.
Reduce Voltage,
Increase Spring Pressure,
or Reduce Capacitance
CONTACT CAPACITOR DISCHARGE PROCESS
CD Stud is positioned against work
on the timing or ignition tip, the gun
mechanisms are compressed.
Note: The tip design/dimensions are very important. The ignition tip controls the arc length and weld duration. If the
ignition tip is too short there will not be enough weld time to ensure an adequate weld.
Normal weld flash.
No significant weld spatter.
This will be a good, strong weld.
No Adjustments Required
The gun begins
to drive the stud
into the base metal.
The Trigger is pulled, the ignition
tip vaporizes and an arc is formed.
This arc melts the bottom of the
stud and top of the base metal.
Normal Operation
Correct
Complete fusion
1
Too Cold
No visible weld flash.
This weld will break.
IncreaseVoltage,
Reduce Spring Pressure,
or Increase Capacitance.
Also could be caused by a
short tip or a center punch mark
At the end of travel, the power source
is completely discharged and the stud
has formed a complete bond with the
base material.