Technically, you want any weld running parallel to the load being applied. So, the "fishmouth" puts the welds much closer to the direction of load, along the pushrod.
But.....an analysis of a "butt" weld around the circumference of the rod, assuming a 1/8" throat, gives a low enough stress in the weld that something else will fail before the weld does.
I think the weld is at least as strong as the root of the threads on the stud being welded to the rod itself.
The weld is just not a problem.
But.....an analysis of a "butt" weld around the circumference of the rod, assuming a 1/8" throat, gives a low enough stress in the weld that something else will fail before the weld does.
I think the weld is at least as strong as the root of the threads on the stud being welded to the rod itself.
The weld is just not a problem.