How to spot weld with a MIG welder

You can spot weld with a MIG welder, but you need to know how. Note that it is possible to do this without an arc welder or a torch. The hardest part about using a MIG welder for spot welding is learning to keep your hands off the trigger and not let the current build up until it hits your target. When using high voltage and low amperage settings, the gun should be kept moving at all times – not just touching down on one spot for long periods.

How to spot weld with a MIG welder

You’ll need to use a MIG welder and some aluminum spot weld tips to spot weld. A low amperage and high voltage are essential to keep the information cool while welding.

To start, make sure the gun is adjusted correctly so that it’s set to give off enough heat without burning your piece of metal or melting your material too much. You can change this by adjusting the gas flow on the spool (it should be set at around 2/3 complete).

Next, ensure there’s no dust in front of where you’re welding—this can ruin an otherwise perfect weld job! If possible, wear protective glasses when working with any arc welder, even if they aren’t expensive ones like goggles or safety glasses from Harbor Freight Tools (which usually cost less than $10 each).

Use a low amperage and high voltage.

You must use a low amperage and high voltage to ensure the best possible results. This is because the high voltage is more critical than the low amperage when welding metal. The reason for this is that with high voltages come better welds and less wear on your equipment.

Low amperages are also less likely to cause damage to the metal itself because they allow you to use smaller wire sizes (which means less stress).

Use an aluminum spot weld tip.

The next step is to use an aluminum spot weld tip. This will allow you to weld aluminum, which is a good choice if you want to weld your car bumper or other parts made of this material.

To tell if the tip is made from aluminum: look at it closely and check for any markings on its surface. If there are none, then it’s likely that your welder has been incorrectly labeled as having been made in China instead of America (or some other country). You should also see whether or not there are any numbers written near where they connect (this will help ensure that everything fits appropriately).

To tell if the tip was designed specifically for making spot welds: look at its shape carefully—if it’s too wide or narrow compared with other types available today, then most likely yours isn’t meant specifically for this purpose either, however, if everything else seems right except perhaps size then chances are pretty good that yes indeed – It Does Work Perfectly!

Keep moving the gun

  • Keep the gun moving. MIG welders are designed to be mobile, so don’t try to weld a large area or hold it in one spot for too long.
  • Only weld with a tip (or use something else). You don’t want your hands getting burned by the heat from the electrode, and you wouldn’t want them touching another person’s skin, either!

Please do not hold the trigger down; tap it with your finger

  • Do not hold the trigger down. Tap it with your finger like a doorbell, and keep the gun moving.
  • Use a high voltage and low amperage welder (around 20-25 amps). This will help prevent heat buildup in parts of your welds that can weaken them over time.
  • Use an aluminum spot weld tip, which helps create a cleaner arc for better results.*

It is possible to spotweld with a MIG welder, but you must use high voltage and low amperage.

You can spot weld with a MIG welder. It is possible to spotweld with a MIG welder, but you must use high voltage and low amperage.

  • Use a low amperage and high voltage: To prevent the metal from blowing out of the joint or melting into your workpiece, ensure the wire current is set at five amps or less. This will ensure that there are no sparks when you contact your workpiece and start heating it for welding purposes; instead, it will just melt away until only an outline remains behind where there once was material (this happens because flux burns off). If this happens too often during one welding session, consider switching back to manual mode, so things stay manageable!
  • Use an aluminum spot weld tip: Aluminum has been found by many experts across various fields, such as chemistry/physics, etc.,


If you’re looking to buy a MIG welder, it’s essential to know how they work and the available features. This article will help you choose between different types of welders based on your needs and explain each type’s pros and cons. See also 9 Best Engine Driven Welders – Complete Guide & Reviews, 7 Best Portable Spot Welders – A Comprehensive Guide

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