On Sun, 01 Feb 2004 17:30:26 GMT, "Ed Huntress" vaguely proposed a theory ......and in reply I say!:
I need to put this another way....sorry.
You start with the wall of a round pipe, which looks like solid steel end on to a bending force. It is replaced by a hollow pipe being flattened side on, as far as bending that round pipe into the join. It's weaker, unless the wall of the leg of the T was really really thick.
Basically, flatten a piece of pipe end on in a press. Now flatten it side on. That's over the top, but gives an idea.
**************************************************** sorry remove ns from my header address to reply via emailSpike....Spike? Hello?