steeldr. wrote:because of the angle of the torch and not lifting the rod from the puddle, could this method invite cold lap,or lack of fusion ? ron
If the amperage isn't right yes....walking the cup is very popular on pipe and actually helps you slow down and make sure your breaking down the walls, also can keep your arc length very consistent.
The image you posted is a very good example, that is some of the nicest I've seen.
I weld stainless, stainless and more stainless...Food Industry, sanitary process piping, vessels, whatever is needed, I like to make stuff.
ASME IX, AWS 17.1, D1.1
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Markus,
The reason that I use a socket weld over a butt weld is prep time. You can cut out a lot of time on the pipe end of things since it just needs to be cut. A lot of low pressure piping doesn't require full pen butt welds so why spend the time and money. The best weld in any situation is the one that will do the job for the least amount of money.