San Bruno Pipeline Accident Update

There are welders of all stripes in naval shipyards, some taking their responsibilities more seriously than others. The best technical welders are the nukes with a nuke pipe seal welding qualification. They are specialists in tigging pipe by hand or machine, and often forget how to set up the equipment for other processes.

In my opinion, the best overall welders are those who take the extra time and care to ensure the assembly stays straight, using whatever process is most efficient for the position, length, and size of weldment. They verify the requirements for tolerances, material types, welding electrode and wire type, system cleanliness standards, and customer expectations. They produce a weldment that will pass whatever post-weld inspection the customer wants, be it VT, PT, UT, RT, MT, or ET.

I've met welders in the shipyard that have to be told time and again that their welds don't pass VT because of undercut, rollover, concavity, what-have-you. They don't get tasked with critical welds, and I've spent lots of time over the past seven years cleaning up after them.

I've met welders who take ownership of and pride in their work and these are the people I enjoy either following on a job or getting to work side-by-side with and learn from.

Please don't paint us all with the same brush.

Reply to
TinLizziedl
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I would guess that production weldors are specialized. One would weld submarine pipes for years, the other would TIG weld tiny stainless tubing pieces, the third one would MIG weld ladders or whatever they are called in the marine world, brackets etc.

i
Reply to
Ignoramus7337

There is some of that but what he's really saying is that people's work product is a reflection of their character and integrity an abundance or shortage of either isn't industry specific. Both are individual qualities and when in abundance, are expressed in group efforts. I wouldn't disagree with that and to bring this conversation full circle, what failed in San Bruno wasn't the pipe or the weld. The explosion was a direct reflection of the integrity of the responsible party/parties or lack of same. Focussing on the technical only distracts from the underlying problem.

Reply to
John R. Carroll

=========== An oldie but a goldie:

Pick any *TWO* (1) good (2) fast (3) cheap

-- Unka George (George McDuffee) .............................. The past is a foreign country; they do things differently there. L. P. Hartley (1895-1972), British author. The Go-Between, Prologue (1953).

Reply to
F. George McDuffee

To expand that a bit:

A good fast job won't be cheap. A good cheap job won't be fast. A fast cheap job won't be good.

Jon

Reply to
Jon Anderson

I guess you missed my question.

And it's Ernie, not Lennie.

Steve

Reply to
Steve B

No,but once is enough.

" I seriously wondered if I wasn't just being unreasonable in my expectations and since I had a month on my hands and real professionals to teach me, I learned to do this type of job. I took and passed a certification test supervised by liscensed examiner in 304/308/316 SS pipe/3/8 wall up to 4" diameter in any position as well as SS to 625 Inconel. I'm still not a welder, which makes me about as qualified as most guys sporting paper."

That's the guy. I'd have called him for a referral had I thought of it at the time.

Reply to
John R. Carroll

I can see you have contempt for welders, and that is based on your very small amount of experience contaminated by your vast amount of knowledge.

Welding for a month, even under master teachers is not "I learned how to do this type of job." In any trade. Being able to sit at a bench, inside, under ideal conditions, and welding two objects placed in front of you has no relevant connection to being able to do anything in the real world.

Your forty hours of experience does not qualify you to blanketly condemn and paint a whole trade with your overlyeducated broad brush. I've known more engineers who couldn't find their way to the bathroom or zip up afterwards than I have known welders who had to have "someone sit and hold their hands." Welders who didn't perform were fired. Engineers who didn't perform were usually promoted.

Steve

Reply to
Steve B

It doesn't work with some NNTP software. A lot of newer programs seem to have moved away from the early standards.

Reply to
Michael A. Terrell

Many do wind up getting specialized, especially the nuke pipe welders and those skilled in sheetmetal welds. It's not done on purpose, exactly, but if you show a lot of skill in something, you are more likely to get stuck doing that thing for a while. Sometimes the rest of your career.

Hopefully the person really likes that kind of self-imposed limitation though- I think it stinks getting stuck in a rut like that, so I do my darndest to practice and use all my qualifications, not just the ones people think are "cool."

I'm currently qualified in smaw, dual-shield, mig-pulse, mig-spray, and tig, with a decent range of material types. I like to use whatever process would make the task at hand easier, quicker, and cleaner. Just in the last week I've used smaw, pulse, spray, and tig on two sizable assemblies. Personally, I think it's a fun challenge, not an agonizing chore.

Reply to
TinLizziedl

Personal question: Were you ever hampered by someone (or an engineer) who insisted they had to hold one of your hands?

Steve ;-) (ducking and running)

Reply to
Steve B

Yes, it took us (welders) a long time to do a simple repair because the engineers did not want us to grind out the defects to our satisfaction.

We pussyfooted around this thing using polishing stones and picking slag pockets out by hand rather than simply grind into it and do our weld repairs. Took us about two weeks of work to accomplish what should have taken two or three days. That two weeks came after the engineers had taken a month to look at it and write their papers.

Engineers wound up getting spanked, too. They couldn't make up their minds as to what level of serious-ness to classify the work as, until NAVSEA had to step in and hold their hand! It's not much, just that the lives of everyone on the sub depended upon these welded blocks holding.

In the end, we wound up essentially doing what I wanted to do in the first place-- grinding in all the way to the root, tigging it all the way back out. Funky partial penny joint design that took lots of weld in a sizable bevel.

That experience proved the point to me. Engineers get paid to plan and design things. Welders get paid to fix the engineers plans and designs.

Tinlizzie (new computer, no sig yet)

Reply to
Tin Lizzie DL

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