MIG welders |
The MIG welding machine Parameters to get you started MCB on MIG welding, including information Parameter settings.
Optimal performance with your MIG welder
Unless you weld to survive, then it is often difficult to
know if your MIG welder is set up for optimal performance. If you ask yourself
questions like "Am I using the proper voltage?" Or "Do I have
too many or too few strings?" Then this article is for you! We will focus
on the basics of properly installing your welder, and then see what your weld
bead is telling you.
Equipment
Good tools make MIG welding easier, while bad tools can get
you frustrated and expensive in weld quality. MIG welders such as 211 and 141
are sometimes ideal for welders. If you are looking for a machine with multiple
welding capabilities, we recommend multi-process welders such as the 215 and 220
AC / DC.
Some welding machines include technological advances, such
as Auto-Set ™ technology, which automatically sets optimal parameters based on
material thickness and wire diameter. This allows you to focus on the
appropriate technique.
To determine which welding machine is best suited for your
needs, see which welder is right for your home or shop, or download this guide.
Getting the most from your machine
It contains important
information about proper operating and safety guidelines. Most companies offer
their manuals online.
The MIG welding steel with solid wire. Combined design,
positioning, and other factors influence results and settings. When good
results are obtained, record the parameters.
1. The thickness of the material determines the ampere. As a
guideline, 1 amp output is required for each .001 inch material thickness: .125
inch = 125 amps.
2. Select the appropriate wire size according to the
amperage. Since you do not want to replace the wire, select one for your most
commonly used thickness.
• 30–130 Amps: .023 in.
• 40–145 Amps: .030 in.
• 50–180 amps: .035 inch
• 75–250 amps: .045 in.
3. Set the voltage. The voltage determines the height and
width of the bead. If there are no charts, manuals, or specifications available
to set the correct voltage, you can try this: When a person welcomes scrap
metal, an assistant drops the voltage down until the arc is in the workpiece.
Don't be Do not think, do not think so. Then, start welding again and increase
an auxiliary voltage until the arc becomes unstable and sloppy.
A relationship between arc voltage and arc length.
A short arc voltage
decreases and produces a narrow, sharp bead. A long arc (over-voltage) produces
a flatter, wider bead. Too much arc length creates the possibility of a very
flat bead and undercut.
4. Set the wire feed speed. Wire-speed controls the amperage
as well as the amount of weld penetration. A speed that is too high can lead to
burnout. If a manual or weld specification sheet is not available, use the
multiplier in the following chart to find a good starting point for the wire
chart.
Multiply the former by the size of the chord. Using 1/8 inch
(125 amps)
.023 inch 3.5 inch per amp 3.5 x 125 = 437.5 IPM
.030 inch 2 inch per amp 2 x 125 = 250 pm
.035 inch 1.6 inch per amp 1.6 x 125 = 200 pm
To check for the
Parameters
One way to check your parameters is to check the weld bead.
Its presence indicates what needs to be adjusted.
Very Good weld:
good penetration |
Watch for good
penetration into the base material, flat bead profile, suitable bead width, and
good tie-in to the toe of the weld (where the weld metal meets the base metal).
Voltage is too high: too high a voltage is marked by poor arc
control, inconsistent penetration, and a turbulent weld pool that consistently
fails to penetrate the base material.
The voltage is too high |
Voltage
too low: A bad arc has a very low voltage due to start, control, and
penetration. This causes excessive splatter, a convex bead profile, and a bad
tie at the toe of the weld.
Voltage too low |
Travel speed too fast: A narrow, convex bead is caused by the
insufficient tie in the claws of the weld, insufficient penetration, and an
inconsistent weld bead.
Travel speed too fast |
Traveling
speed is too slow: traveling
too slow gives too much heat to the weld, resulting in too wide a weld bead and
poor penetration. On thin materials, it can also be caused by burns.
Traveling speed is too slow |
Wire
feed speed/amperage too high: Setting the wire feed speed or amperage too high (depending on what type
of machine you are using) can cause a bad arc start and a very wide weld. Can.
Bead, burning, can give rise to excessive splatter. And poor penetration.
Wire feed speed/amperage too high |
Wire feed
speed/amperage too low: Weld to narrow, often convex beads with a bad tie
at the toe of high speed
Wire feed speed/amperage too low |
Not Shielding Gas: Inadequate or lack of shielding gas is easily identified by the weld's face and internal pores and pinholes.
Not Shielding Gas |
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