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T O P I C R E V I E W
Posted - 04/18/2004 : 12:14:08 Ideally a butt weld should be done using either TIG (HeliArc) or with a mini gas torch. Using TIG (my personal preference) or gas, will give a softer more workable weld that can be ground perfectly flat on both sides of the seam and be hammer & dollied, metalfinished without a worry of cracking.
A MIG creates a strong, yet brittle weld that is not ideal for butt welds and grinding down flat. I'm not saying it can't be done... it's just much more susceptible to cracking and failure, especially if you do any significant amount of hammer & dollywork. This also depends on the particular application... and if you grind down BOTH sides of the weld.