I'm trying to figure out what welding symbol to use. I have two cylindrical pieces (pipe, for example), mitered at 45-deg, then put together to form a 90-deg angle. The inside of this angle would probably use a fillet weld and symbol, but the outside corner isn't a fillet at all. What symbol is appropriate?
In my opinion it would be a groove weld all around but you could also just make it a fillet all around(not saying that the fillet would be right but detailers use it all the time).
The other day I saw a drawing with TC-U4b weld on a column baseplate and it had an all around weld symbol.I know what he wants but technically the detailed weld is wrong.
What application is this joint? Is it structural or mechanical? The design of this joint will help determine the proper weld symbol(s).
John Wright
There is really no joint prep in this case. The inside corner gets a fillet weld, and the outside corner really gets melted over, with a little filler added as required. It is somewhat structural, but it is just copper pipe, so there really isn't much strength there to start with.
The welding symbol for the outside corner would depend on the groove preperation. If none, I would call it a square groove weld. I typically like to cut the last little bit of the pipe off square to made the end a single V groove weld. It is easier to make a nice radius that way too.(The sides would still be a square groove weld unless a bevel is put on one or both pipes)
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