Thanks for the tip. We usually use pulsed Mig on the exterior for structural welds and TIG for the interior Vacuum tight welds which are usually just fusion welds. What I'm looking for is not how to do it (we have that down) but for a specification that helps me quantify it and that will have...
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When possible the chambers are structurally welded first and this helps a lot, but so much heat is put into the chamber it seems to distort a fair amount. Between that and actively cooling them we rarely have a problem. [U]What I'm trying to do is write a welding specification and was...
Yes, that is correct. Almost all structural welds occur on the outside of the vessel. To accomplish this the boxes are constructed with top, bottom and ends overhanging the sides about 1-1/2". Structural members are most common on the tops and bottoms and not required on the sides because of...
Mostly we are working with 304, 304L to 304, 304L or 316L. We are making vacuum chambers so the walls, flanges and passages are all SS. We often weld mild low carbon steel stiffeners and gussets on to the larger external areas for structure. Depending on size/spans, function, and number of...
I was wondering if anyone knows of an AWS (or similar) process specification to minimize distortion when welding stainless steel plate. We are assembling large vacuum chambers and need to control heat distortion that occurs during welding. We don't do the work in house but want to be able to...
