Not Ranked
Hey Bob,
With a Mig you should always push the weld, the reason is a Mig is cold on start of weld so if you pull a weld you are always working away from the heat. If you are are pushing you will always be laying the wire into the heat therefore you will have better penetration. I will admit it, i can make a better looking weld by pulling, but it is not the best practice.
Steve
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