Weld inspection

[mudcats23]

Does the weld in the attached photos look acceptable.
It was a repair to a craked weld. Material is Aluminum.

We used mil-std-2219 which I know is superceded but is called
out on drawing.

 

[metengr]

Does the weld in the attached photos look acceptable.

Not enough information to answer your question. What is the required fillet side of the weld? What are your acceptance criteria for an acceptable weld? You need to define this not us.

Also, you might want to wrap the fillet weld around the corners to reduce stress concentration, plus it looks better.

 

[stanweld]

Agree with metengr regarding wrapping the fillet weld. Weld flaws must be considered to occur with the abrupt weld termination as shown.

 

[mudcats23]

Thank you guys for the info.
I attached a picture of weld symbol and
note.
The weld should have been a fillet all around to begin with.
The material is 6061-T651. We used Argon gas.

We call out Fusion weld IAW MIL-STD 2219 class C.

We repaired a crack and did a fillet weld up to the corner
and left a little void.
My question is if the little void shown in the picture
acceptable. I think we are allowed some porosity per MIL-STD-2035.

I agree it is a sloppy repair but we could not continue around the corner without distorting the thin sections.

Thanks in advance for your input

 

[stanweld]

Can you not simply blend grind/machine the flawed location?

 

[Duwe6]

Agree with stanweld, this ugly duck needs to be ground with a carbide burr bit "roto-file" and dressed up. There will probably need to be a little more weld added. GTAW 'Tig' is the best for small rework/repairs.

And no, the weld fails Visual Inspection to the expectations of 2219. The criteria are very poorly called out in 2219, but this Mil-Spec is for "flight parts". If your welds don't look reasonably good, they have to be dressed up a little. Burr bit in a small, cheap die grinder is the best tool for fixing ugly welds.

Try to obtain a copy of AWS D1.1, D1.5, or D1.6; they have an excellent description of accept/reject criteria. But remember, if a weld on a "flight part" looks bad, it is bad.

 

[fegenbush]

Duwe6,

How about AWS D1.2 since that actually relates to structural aluminum?

 

[Duwe6]

D1.2 is the code I was trying to remember. Thanx

 

[gtaw]

It has been several years since I worked with MIL-WSTD-2219, but I don't believe MIL-STD-2035 has anything to do with the acceptance criteria for MIL-STD-2219. I believe MIL-STD-2219 containes acceptance criteria for class A, B, aqnd C welds.

If I am correct, why are you looking at MIL-STD-2035?

Best regards - Al