Perhaps there is another way to look at it. Imagine a pipe coupling welded to a steel floor and a pipe is threaded into the coupling. The pipe has a high moment due to its length and until now I have simply welded it to the floor. More of a simple post than a railing now. I am curious as to...
A question came to mind today. Say a pipe is threaded on its outer diameter in order to couple to another pipe to achieve a desired length. Material is taken from the pipe to make the threads which weakens the pipe, and as I understand it pipe threading is tapered, so that would take even more...
The radius I was referring to was on the inside of a bent plate 3/4" thick. I can see from everyone’s responses that my question can not derive a concrete rule of thumb. It seems that the application and material used determine the proper method of fabrication.
The plates in question are 3/4" thick and 5" wide. They are a low carbon steel 1008/1010. I assume the fillet welds, on either side of the plate, are comprised of a very similar grade of steel. The radius of the bend is roughly 1" formed in a large brake press.
A question arose today... If 2 plates welded together at a right angle with fillet welds, are stronger than a single plate of the same thickness and material bent on a brake to form a right angle. I have always been informed that a welded part is stronger at the welds than the material itself...
