Coaxial Cylinder Weld Symbols
Coaxial Cylinder Weld Symbols
(OP)
I've searched but with little help on how a weld is interpreted on cylinders when they abut another cylinder and the view is perpendicular to axis (see attached).
Of the three examples shown I can't see how any mean anything different (all are all-around anyway) though the 3rd seems redundant. Is there a different view or preference for specifying welds on abutting coaxial cylinders?
I can imagine if it were a hollow cylinder instead of a solid cylinder there might be a different interpretation, but I would still have my doubts depending on the drawing view.
Of the three examples shown I can't see how any mean anything different (all are all-around anyway) though the 3rd seems redundant. Is there a different view or preference for specifying welds on abutting coaxial cylinders?
I can imagine if it were a hollow cylinder instead of a solid cylinder there might be a different interpretation, but I would still have my doubts depending on the drawing view.





RE: Coaxial Cylinder Weld Symbols
Peter Stockhausen ://www.lin kedin.com/ profile/vi ew?id=3006 4526&t rk=tab_pro
Senior Design Analyst (Checker)
Infotech Aerospace Services
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RE: Coaxial Cylinder Weld Symbols
Weld symbols are read left to right. Above the horizontal line of the symbol is for the "other side" and below the horizontal line is for the "arrow side".
RE: Coaxial Cylinder Weld Symbols
What about in a situation where you have a tube over an internal cylinder (attached).
Would any of these symbols have a different meaning and furthermore, if the internal cylinder were hollow would it change the meaning of any of them?
For example--assuming I wanted to weld both ends of the tube to the internal cylinder, do any of the symbols accurately show this or would it be best to have two separate weld symbols (one at each end)?
RE: Coaxial Cylinder Weld Symbols
I would use the one in section A-A. It shows clearly that both ends of the cylinder are welded.
Side note:
Are you using 1st angle projection? For 3rd angle projection the section view is behind the section cutting line.
RE: Coaxial Cylinder Weld Symbols
Behind the "arrow heads" of the secion line.
RE: Coaxial Cylinder Weld Symbols
Regardless, while the shown symbol might technically mean to put the weld at both ends of the tube/cylinder interface I would put two seperate symbols. To me it's more clear. Opposite side on cylindrical welds usually means ID to me.
RE: Coaxial Cylinder Weld Symbols
Steve: I agree, I simply re-used the symbol from the first example since I needed something to illustrate a weld.
Two symbols is certainly more clear, but I wasn't sure what the actual connotation was.