Puddles, use a 5/32" gap rod, no land and weld in about the 1:30/2:00 o'clock position while you roll it. If you have some 4" pipe use a 3/16" gap rod. You don't need to be real hot, about 18 volts and 110 amps. The puddle higher up can have gravity act on it too much and too far down can make proper penetration a little harder. 1:30/2:00 downhand lets you control penetration quite easily and you can adjust your speed for how hot you're burning. If your gap gets wider, weave a little wider and if it gets narrow, don't weave as wide. keep the arc on the leading edge of the puddle. A tapered nozzle is real nice because you can rest it on the bevel and just slowly twist your wrist side to side. It will be fairly easy to get an almost perfect slightly convex very smooth root pass. Welders get carpal tunnel from doing MIG root pases.
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Today's Featured Article - History of the Nuffield Tractor - by Anthony West. The Nuffield tractor story started in early 1945. The British government still reeling from the effects of the war on the economy, approached the Nuffield organization to see if they would design and build an "ALL NEW" British built wheeled tractor, suitable for both British and world farming.
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