Hello,Let's assume we have two parallel 3' aluminum 1.3quot; OD, .25quot; wall thickness tubesThere is a 2' .5quot; OD .25quot; wall thickness tube below the two 3' tubes intersecting them on one endThe result is a U shape with the 2' tube overlapping below the other two.Now let's assume we have a 2' 1quot; OD .25quot; wall thickness tube overlapping ABOVE the two 3' pipes, but 5quot; back from the edge where the thinner tube overlapsThese tubes are all welded togetherThe aluminum is 6061 T6 Schedule 40.Could someone comment as to the forces (vertical and lateral) these welds could be expected to withstand? Are we looking at a level a person could exert, or into the hundreds of pounds? I am simply talking about the welds, not the tubing.Thanks
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The filler metal is answer, but you didn't give ANY specs on the filler metal! So, with that being said,I cannot tell you the answer to your questionHOWEVER, your tubing should withstand 45,000 pounds of pressure per square inchIf you tell me what filler metal you were using, I can tell you what the welding will be able to withstandThe first 2 numbers in your filler metal will indicate tensile strength multiplied by 1000For example a 7018 rod tells me the following: 70 70,000 psi tensile strength, how much the weld will hold The 1 tells me it can weld in all positions, flat, virtical, horizontal and overheadThe 8 tells me that its a low hydrogen rodI must also add that this depends on the soundness of the weld metal depositedIf there are defects in the weld such as undercut, porosity etc, that will affect its strengthThere are other variables as well, but I'm not getting into that.
