Passed my 3G welding test!

[Timothy]

That big gob of ( shiny) sh!t just below and right of the weld you're showing off.   
I know, If you can't make it right, make it pretty .  ( it is very shiny )   

There are some inked circles.  Is that what you're talking about?

I was on my way out this afternoon after a 10 hour day and just snapped a few pics with the phone.  This is very basic stuff for us.

[Frosty]

Congrats Tyler!
Keep practicing & when you think your done practice some more! My oldest son went to welding school, he loves pipe welding and is working on getting his own rig to go out in the field, wants to work a pipeline. Good luck with your endevours and practice, practice etc.

[tombogan03884]

There are some inked circles.  Is that what you're talking about?

I was on my way out this afternoon after a 10 hour day and just snapped a few pics with the phone.  This is very basic stuff for us.

Might be, REALLY looks like a lump under the right end of the visible weld where it disappears into the glare.
Dude, it looks like it will never come off on the outside, presumably noncritical, surface, I'm just busting your chops . 

[Timothy]

Might be, REALLY looks like a lump under the right end of the visible weld where it disappears into the glare.
Dude, it looks like it will never come off on the outside, presumably noncritical, surface, I'm just busting your chops . 

Heck Tom!  I don't care....I didn't weld it myself!  If I had, it's be one big lump of molten glob, believe me!  QC would take me out back and shoot me!

 

[tombogan03884]

Heck Tom!  I don't care....I didn't weld it myself!  If I had, it's be one big lump of molten glob, believe me!  QC would take me out back and shoot me!

 

Same here, I'll machine it to +/- .0005 but don't ask me to weld or dremel anything. 

[Sponsor]

[Timothy]

Same here, I'll machine it to +/- .0005 but don't ask me to weld or dremel anything. 

That particular part has been machined internally as well as where those threaded boss's are welded in the second picture.  By the time the final welding is done, it's been in the machine shop two or three times.  After they tack weld the assembly, it's inspected to make sure the end flanges are parallel to about .008 or .010 and mounted in proper rotation to the bolt flange.  Once that's done, they do the final welding and then re-inspect the entire assembly on the CMM before it's approved for packaging.  Looks simple at first glance but that piece of pipe is worth well north of 5K when it's finally done and it's only about 18 inches long.

[tombogan03884]

When I was working we had some parts, (Gas Flanges, forget the Customer, may have been GTE ) that were basically a hollow, gas tight dick 3 feet across that had to be square, and flat to something like +/- .003. I didn't have anything to do with that SOB though.
Nothing about it went easily.

[Magoo541]

When I was working we had some parts, (Gas Flanges, forget the Customer, may have been GTE ) that were basically a hollow, gas tight dick 3 feet across that had to be square, and flat to something like +/- .003. I didn't have anything to do with that SOB though.
Nothing about it went easily.

Stainless?  That stuff loves to move around when you just look at it let alone machine it.  FWIW I've had good luck using HSS tools on 303/304/316, it seems HSS has a better edge that doesn't stress the material as much as carbide, coated or not.

[tombogan03884]

Stainless?  That stuff loves to move around when you just look at it let alone machine it.  FWIW I've had good luck using HSS tools on 303/304/316, it seems HSS has a better edge that doesn't stress the material as much as carbide, coated or not.

They bought some type of super alloy tooling just for that job, 304 stainless they ran a 1/2 inch endmill  around 3 - 4,000 RPM
with some insane feed rate of like 30 inches a minute. all over the shop you could hear the machine basically screaming for mercy.

[PegLeg45]

I used to love the Super Missle (nickle) ARC welding rods for TiG welding. I would beat the flux off of them and use them for TiG. They made some pretty welds....strong too.  



When we would do a re-fit on some of our hydraulic presses, we would use up to 6" schedule 160 pipe. It has almost a 3/4" wall thickness. Talk about taking forever to do a weld joint. Two root passes with a Tig and then multiple cover passes with 7018 stick. Plenty of time all day long for internal contemplation and focus.  
My all-time favorite was welding two halves of a 48" hydraulic cylinder together (almost 13' circumference with a 2" thick wall)......