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Pulse welding can be done in both Stick welding (SMAW) and TIG welding (GTAW) processes. It allows
the operator greater control over the weld puddle and heat input, which is particularly helpful for welding
out of position or with thin materials. Pulse welding can help prevent warping by getting adequate
penetration while putting less heat into the workpiece. It also makes it easier to create a reliable,
uniform, and visually appealing weld.
Please note, pulse welding in Stick (SMAW) mode can be much more difficult than normal stick welding.
Starting and maintaining an arc can be more difficult and too low of a setting for Pulse (Hz) or Pulse (%
On) can cause loss of arc or electrode sticking. If you are having difficulty it is recommended to keep
Pulse (% On) over 40 and Pulse (Hz) over 2.
HOW TO SETUP PULSE WELDING:
• Press and push the PULSE SETTINGS ADJUSTMENT KNOB (9) to light the Pulse (Hz) PULSE
SETTINGS INDICATOR LED (7).
• Turn the PULSE SETTINGS ADJUSTMENT KNOB (9) to adjust the pulse frequency in Hertz (or pulses
per second).
• This sets how many switching cycles between peak amperage (user-set amperage) and base
amperage (50% of peak amperage) occur per second. A higher frequency creates a focused
puddle and a tight ripple bead pattern. A lower frequency creates a broader puddle and unique
ripple bead pattern.
• Tip: When pulse stick welding, Pulse (Hz) over 2 is recommended to avoid arc loss and sticking.
• Push the PULSE SETTINGS ADJUSTMENT KNOB (9) to light the Pulse (% On) PULSE SETTINGS
INDICATOR LED (7)
• Turn the PULSE SETTINGS ADJUSTMENT KNOB (9) to adjust the percent of each pulse that the weld
output is at peak amperage vs. base amperage. A higher setting for Pulse (% On) will increase
penetration while a lower value is better for thin material.
• Tip: When pulse stick welding, Pulse (% On) over 40 is recommended to avoid arc loss and
sticking.
PULSE SETTINGS EXAMPLE:
• Pulse (% On) set at 60%
• Pulse (Hz) set at 1
• Each 1-second-long pulse will have 100A output for 0.6 sec then 50A output for 0.4 sec.
HOW TO TURN OFF PULSE WELDING:
• Press and push the PULSE SETTINGS ADJUSTMENT KNOB (9) to light the Pulse (Hz) PULSE
SETTINGS INDICATOR LED (7)
• Turn the PULSE SETTINGS ADJUSTMENT KNOB (9) counterclockwise until the PULSE SETTINGS
DISPLAY (8) displays “OFF”
• Note: Pulse (% On) setting will not be available if Pulse (Hz) is set to Off
EXPERT-TECH TIPS FOR PULSE STICK WELDING:
The pulse settings in the Stick setup chart are a
good starting point for pulse stick welding for most applications. Out of position and flat welding will see
the benefits of pulse welding with these settings. If you want to weld thinner material, it is recommended
to increase Hz and reduce % On. This will allow you to use most electrodes type on material as thin as
16GA. With good technique, the right settings, and the right electrode type, pulse settings can enable
stick welding all the way down to 20GA material. All electrodes can see the benefits of pulse welding,
but please note that pulse welding affects typical rod behavior. You may not get the typical benefits of an
electrode type when pulse welding, but it can still be quite useful.
EXPERT-TECH TIP: ON THIN SHEET METAL TRY A 3/32” DIAMETER E6013 ROD AND SET THE
PULSE (HZ) TO 7 WITH PULSE (% ON) TO 90. FOR VERTICAL OR OVERHEAD WELDING, TRY
E7014 AT 2.2 HZ AND 40% ON.
Pulse Welding
