Skeans
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Doing those tubes for hydraulics I was told to purge them so the weld would be full penetration without having too much interruption of the flow of fluids. That's why I was wondering on the bulk head if it was dug down say with 1/8 of the total wall thickness would keep the same from happening.On a cylinder? I recon it wouldn't matter if you had to remachine the bore.
Could do a small land and gap, and just keyhole it.
Purge is usually used in situations where the inside of the weld, has to be as good as the outside.
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