Weld Symbol

[Ltbadd]

Can someone decipher this symbol, I don't believe it's correct

[H80N]

Can someone decipher this symbol, I don't believe it's correct
[ATTACH]35177[/ATTACH]

are you talking the 1/16-3/16 fillet..??

http://www.wcwelding.com/welding-symbols.html

[Ltbadd]

are you talking the 1/16-3/16 fillet..??


http://www.wcwelding.com/welding-symbols.html

Yes, are you saying it's giving the size of the fillet? This is a weld on a bolt, so I'd tend to believe they want an all around symbol. If it's the size of the fillet then it should be located to the left of the fillet symbol...?

Also the drawing doesn't show an all around weld, if we're trusting the drawing

[H80N]

Yes, are you saying it's giving the size of the fillet? This is a weld on a bolt, so I'd tend to believe they want an all around symbol. If it's the size of the fillet then it should be located to the left of the fillet symbol...?

Also the drawing doesn't show an all around weld, if we're trusting the drawing

It looks like fillet width & tolerance to me...

but I am not a production guy..

can you get clarification from the customer??

[MMW]

I think the dwg. is wrong. I would clarify with who ever spec'd it.

[Ltbadd]

I think the dwg. is wrong. I would clarify with who ever spec'd it.

H8ON and MMW I agree, just wanted someone else's eyes on this

[Rhinox]

Weld Symbol

Wrong !
the fillet weld symbol should have been on top of the line , drawing f.. up!

[Rhinox]

Weld Symbol

"draft person f..up"

[snoeproe]

The drawing is showing a bolt that's used to lock one shaft to another. The shafts are also key'd together so the bolt is just some added help for the key.
They want 1/16" of weld at 3/16" pitch all around the nut that the bolt screws into. That probably works out to 1/16" of weld on each face (flat part) of the nut.

[MMW]

The drawing is showing a bolt that's used to lock one shaft to another. The shafts are also key'd together so the bolt is just some added help for the key.
They want 1/16" of weld at 3/16" pitch all around the nut that the bolt screws into. That probably works out to 1/16" of weld on each face (flat part) of the nut.

If this is the case then the dwg. is really wrong as it doesn't even show or mention a nut. No matter what the draftsman wants to show he needs to clarify it so someone can build this to what he wants.

I have seen this numerous times & a phone call can usually clear things up. Try to talk to the draftsman & not the purchasing agent though.

EDIT - Looking at the dwg. again, I think they clearly want the bolt welded as they give a 5/16" reference for the height from the od of the shaft to the top of the bolt head. But we are only seeing one view of the dwg.

[Ltbadd]

If this is the case then the dwg. is really wrong as it doesn't even show or mention a nut. No matter what the draftsman wants to show he needs to clarify it so someone can build this to what he wants.

I have seen this numerous times & a phone call can usually clear things up. Try to talk to the draftsman & not the purchasing agent though.

EDIT - Looking at the dwg. again, I think they clearly want the bolt welded as they give a 5/16" reference for the height from the od of the shaft to the top of the bolt head. But we are only seeing one view of the dwg.

Correct, the bolt threads into the part, no nut. If I understand correctly, if 1/16" is the fillet size it should be located to the left of the fillet symbol, to the right would be information concerning the length and center to center spacing

I'm sure most who have been in the trade has dealt with interpreting symbols drawn by someone who doesn't understand weld symbols but perhaps also someone not understanding the correct way a part should be welded.

[JTMcC]

On anything that's continuously circular, there is no "weld all around" symbol. Weld all around is your only option unless they call out an intermitent weld sequence.

If you're getting high centered over a goofy weld symbol on a drawing, then get used to it. It happens about 3.78 million times per day. Detailers punch out work as fast as they can and make many errors. That's what "as builts" are for : )

You don't clarify thru the "draftsman", actually called a detailer, you clarify thru the EOR (Engineer of Record).
The EOR has ultimate responsibility for all design weather it's drawn up by a EIT, Detailer, the Coffee Fetcher or a Drunk on a Napkin.

EOR's in my experience, are quite happy to clarify all welding details to the DRFMTW's (Dudes Responsible For Making The Welds). They will always send written (usually emailed) clarification for liability (theirs and yours, mainly theirs) purposes.

The EOR who stamped the drawings assumes ALL responsibility for the entire design even tho some or most/all of the calc work is done by others. He/She WILL answer your questions thoroughly in short order. Otherwise He/She faces delay of production charges.

Most are, again in my experience, very helpful, patient and understanding of questions from the sharp end.

Just don't expect to receive drawings with all proper weld call outs. Not gonna happen often.

J

[Ltbadd]

On anything that's continuously circular, there is no "weld all around" symbol. Weld all around is your only option unless they call out an intermitent weld sequence.

If you're getting high centered over a goofy weld symbol on a drawing, then get used to it. It happens about 3.78 million times per day. Detailers punch out work as fast as they can and make many errors. That's what "as builts" are for : )

You don't clarify thru the "draftsman", actually called a detailer, you clarify thru the EOR (Engineer of Record).
The EOR has ultimate responsibility for all design weather it's drawn up by a EIT, Detailer, the Coffee Fetcher or a Drunk on a Napkin.

EOR's in my experience, are quite happy to clarify all welding details to the DRFMTW's (Dudes Responsible For Making The Welds). They will always send written (usually emailed) clarification for liability (theirs and yours, mainly theirs) purposes.

The EOR who stamped the drawings assumes ALL responsibility for the entire design even tho some or most/all of the calc work is done by others. He/She WILL answer your questions thoroughly in short order. Otherwise He/She faces delay of production charges.

Most are, again in my experience, very helpful, patient and understanding of questions from the sharp end.

Just don't expect to receive drawings with all proper weld call outs. Not gonna happen often.

J

Thanks for the informative response.

I felt fairly confident the symbol was wrong, as I don't claim to be an expert in this regard. My intent for this post was to get feedback and I was not disappointed. I could have easily gone to my customer about this, however I thought someone on the forum could confirm what I already believed, and in the process I hope others have learned something as I have with many of the threads on this forum. My thanks to all who responded