noddybrian wrote:Don't get AK going on that again please ! - he'd try anyhow just to hate on it if that's 6013 ! naturally he did'nt mention he had a 28lb hammer for that test ! I think he borrowed it from Thor !
That's a wide looking weave on the cap - is this just for #hits & giggles or you got a test to do - last WPS I saw here in 1/2" open root vertical called for a 2 run split cap - have we finally got something the EU can agree on with the paper work ? if so does it have a recognized code / number & can you divulge the written procedure as there are several guys been asking about this in view of new requirements by some of the insurance companies.
That was done on 10mm plate, just practice at a time when I was taking a test on 12mm same setup.
cellulose root,6013 rest of the way out. bs en 287 code.weave cap
we didnt have a big hammer, so the pieces were subjected to xray.
top and bottom strips cut out and bend tested.
of course everyone failed cos it was done with 6013
Yes & no ! - you can drill through them all at once - it's easier on a big morse taper drill / radial arm drill with good feed pressure & a slow enough RPM - but using a reduced shank drill that size in a moderate size drill press you tend to apply enough pressure to flex it slightly & cause the drill to run off at a slight angle so the bottom piece will be slightly off compared with the top - also those drills rarely have a slow enough speed so the drill gets hot - so drilling through that much in one go reduces the drills life ( kinda like duty cycle ) - it would make more sense to drill a suitable pilot hole through them all clamped together to get a consistent center point then separate them & drill the big hole diameter one piece at a time reducing error & heat build up ( in my opinion ) if you do many larger holes in plate you may consider a " Rotabroach " they save alot of time drilling.
Those bends looked ok eh? The way that t-joint broke sucks though.
If your going to drill through multiple plates at once my advice would be to use lots of oil and go slow...keep that blade cool. The further down you go, the harder a time the shavings and debris is going to have to get extracted, which leads to the bit wanting to bind up on you.
If you got a lot of that stuff to do you might look into getting a hydraulic punch or renting/borrowing an iron worker machine. Their expensive to buy outright if you dont do enough work to make it pay for itself, but they are great machines and would make short work of something like that.
Shield Arc,
Thanks for coming over and joining our forum! I appreciate the test pictures.
I PMed Shield Arc aka CEP on WW, and asked him about his test results. What is interesting is I got the same looking result on my fillet weld but it took more hammer blows. Also I ran two more beads making a 3/8"-1/2" fillet. I will try a single pass for my own curiosity. Thanks again Shield Arc!
-Jonathan
Thanks for the welcome Jonathan! Trying to register this morning, it would automatically add me e-mail. But wouldn't accept a password. Went and check my password sheet, I joined here last May , just never posted.
The 7018 break test, I beat the top plate down onto the bottom plate, then had to beat it back the other direction to break the top plate completely off. The 6013 break test snapped with only 3-blows of a 4-pound hammer. All welds were 1/4-inch fillets.
That last picture is telling. Points out the low pentration nature of the 6013. In the absense of root penetration, the root is essentially a sharp corner, which is always a bad thing in structure.
The bend test is the result I expected, with the backing strip allowing full penetration.
While I wouldn't use 6013 in heavy or rigid structure, I've built a lot of light, flexible structure with it where the ductility is an advantage. Anywhere a fillet occured, it was designed to be welded both sides, so each root was protected by the opposing weld. (I built floating docks for a couple years. They require a lot of give to ride the waves and wakes they're constantly exposed to. I don't recall the exact grade of steel we used, but it was a low-carbon steel that wouldn't readily work-harden).
Bridges and fixed docks are two things not on my resume'.
Well, okay, ornamental bridges for private drives and pedestrians, but that's quite a different animal.
The floating docks are the only thing I've ever build where 6013 was the specified rod. I've also used it in the "farmer rod" mode, and built a few one-offs with it, but my preference when AC is the only power source is 6011. Everything else structural was 7018, and occassionally 6010/7018 depending on the joint. Pipe, same thing. These guys in Europe that weld pipe with 6013, open root, impress me. (Though remote amp control on stick welding is common, which must be a big help).
GreinTime wrote:Holy shit lol. Those are some big bridges.
--Sam
My company got the first three contracts on the San Francisco Bay Bridge. First contract was 1-Billion, 316-Million dollars. I forgot the dollar value of the other two contracts.
Otto Nobedder wrote:Spreader bars off a spreader bar. That's some serious rigging!
Steve S
Ya you couldn't get away with that stuff on a "normal" jobsite. Then again, the Ironworkers get away with all kinds of crazy rigging :p Imagine if we could fly up 3 pieces of pipe at a time? Our productivity would...triple!!
Trying to register this morning, it would automatically add me e-mail. But wouldn't accept a password. Went and check my password sheet, I joined here last May 
, just never posted.
