| |
 |
|
|
Science Forum Index » Engineering - Joining (Welding) Forum » DCEP 7018 rod -- followup
Page 1 of 1
|
| Author |
Message |
| Ignoramus6496 |
 Posted: Sat Jan 27, 2007 11:22 pm |
|
|
|
Guest
|
Thanks to all. This rod runs smooth and easy using DCEP. I think that
it is great.
i |
|
|
| Back to top |
|
| Steve B |
| Posted: Sat Jan 27, 2007 11:42 pm |
|
|
|
Guest
|
"Ignoramus6496" <ignoramus6496@NOSPAM.6496.invalid> wrote in message
news:dpydnSEHwO2RiiHYnZ2dnUVZ_h2pnZ2d@giganews.com...
Quote: Thanks to all. This rod runs smooth and easy using DCEP. I think that
it is great.
i
Keep at it, and see if you can get someone who knows how to show you some of
the weave motions you will need to do out of position welding. When done
right, it does produce one of the prettiest beads I know of on any welding
process except automated. But then, a good welder using 7018 looks just
like an automated weld. Also, when done right, flux removal is very easy.
Steve |
|
|
| Back to top |
|
| Ignoramus6496 |
| Posted: Sun Jan 28, 2007 12:10 am |
|
|
|
Guest
|
On Sat, 27 Jan 2007 19:42:01 -0800, Steve B <dsrttrvlr@aol.com> wrote:
Quote:
"Ignoramus6496" <ignoramus6496@NOSPAM.6496.invalid> wrote in message
news:dpydnSEHwO2RiiHYnZ2dnUVZ_h2pnZ2d@giganews.com...
Thanks to all. This rod runs smooth and easy using DCEP. I think that
it is great.
i
Keep at it, and see if you can get someone who knows how to show you some of
the weave motions you will need to do out of position welding. When done
right, it does produce one of the prettiest beads I know of on any welding
process except automated. But then, a good welder using 7018 looks just
like an automated weld. Also, when done right, flux removal is very easy.
I will definitely look for a local 7018 mentor. Meanwhile, I did make
several vertical welds yesterday and today, and while quite a few have
run-ons (tear shaped steel protrusions) they fully close the gaps and
seem serviceable for the little amount of stress that they will hold.
i |
|
|
| Back to top |
|
| Steve B |
| Posted: Sun Jan 28, 2007 1:54 am |
|
|
|
Guest
|
"Ignoramus6496" <ignoramus6496@NOSPAM.6496.invalid> wrote in message
news:2f-dnV2TlbCvvyHYnZ2dnUVZ_sTinZ2d@giganews.com...
Quote: On Sat, 27 Jan 2007 19:42:01 -0800, Steve B <dsrttrvlr@aol.com> wrote:
"Ignoramus6496" <ignoramus6496@NOSPAM.6496.invalid> wrote in message
news:dpydnSEHwO2RiiHYnZ2dnUVZ_h2pnZ2d@giganews.com...
Thanks to all. This rod runs smooth and easy using DCEP. I think that
it is great.
i
Keep at it, and see if you can get someone who knows how to show you some
of
the weave motions you will need to do out of position welding. When done
right, it does produce one of the prettiest beads I know of on any
welding
process except automated. But then, a good welder using 7018 looks just
like an automated weld. Also, when done right, flux removal is very
easy.
I will definitely look for a local 7018 mentor. Meanwhile, I did make
several vertical welds yesterday and today, and while quite a few have
run-ons (tear shaped steel protrusions) they fully close the gaps and
seem serviceable for the little amount of stress that they will hold.
i
7018 is kind of tricky because you have to learn to make "shelves" which you
don't with other rods.
Watching someone else do it is infinitely easier than figuring it out
yourself, and takes a WHOLE lot less rod. This particularly comes into play
with thick material, and where you want to make a wide pass to get a lot of
metal into a joint, particularly in a vertical position.
Steve |
|
|
| Back to top |
|
| Ernie Leimkuhler |
| Posted: Sun Jan 28, 2007 2:16 am |
|
|
|
Guest
|
In article <2f-dnV2TlbCvvyHYnZ2dnUVZ_sTinZ2d@giganews.com>,
Ignoramus6496 <ignoramus6496@NOSPAM.6496.invalid> wrote:
Quote: On Sat, 27 Jan 2007 19:42:01 -0800, Steve B <dsrttrvlr@aol.com> wrote:
"Ignoramus6496" <ignoramus6496@NOSPAM.6496.invalid> wrote in message
news:dpydnSEHwO2RiiHYnZ2dnUVZ_h2pnZ2d@giganews.com...
Thanks to all. This rod runs smooth and easy using DCEP. I think that
it is great.
i
Keep at it, and see if you can get someone who knows how to show you some
of
the weave motions you will need to do out of position welding. When done
right, it does produce one of the prettiest beads I know of on any welding
process except automated. But then, a good welder using 7018 looks just
like an automated weld. Also, when done right, flux removal is very easy.
I will definitely look for a local 7018 mentor. Meanwhile, I did make
several vertical welds yesterday and today, and while quite a few have
run-ons (tear shaped steel protrusions) they fully close the gaps and
seem serviceable for the little amount of stress that they will hold.
i
When running 7018 vertical up.
The rod should be pointed up a little so it has about a 80 degree
included angle below.
The arc has to be kept extremely short.
About 1/16" is best.
Never, I repeat, NEVER move 7018 quickly in any direction ever.
It requires a slow motion so the flux has time to flow out of your way.
Move quickly and you will trap flux.
Vertical can be done as a stringer bead (no weave) or a slight weave,
but a weave no wider than 2 electrodes side by side.
The weave must be performed in a slow back and forth motion, no circles
or up and down motions.
Remember the simple rule that one 1/8" x 14" 7018 electrode should yield
5" to 6" of weld bead in any position.
If you master that then you will have the travel speed down and your
flux should practically fall off.
Pulling away from the metal or letting your rod burn back faster than
you feed it in, will cause those weld boogers you saw.
Travel too fast and you will get undercutting on the sides (toes) of the
weld bead.
Travel too slow and the weld will build up too thick and will try to
fall off the plate. |
|
|
| Back to top |
|
| Vernon |
| Posted: Sun Jan 28, 2007 2:25 am |
|
|
|
Guest
|
Iggy,
A couple of years ago, I had a major eureka epiphany about how to run
a stringer bead with 7018 rod. I posted it under "laying down the
limp noodle" or something similar. If you'll search this group for
"limp noodle" I think you'll find it.
As I recall it only got one response back then. I was sorta
disappointed because, frankly, at the time, I thought it was the best
contribution I've made to this group. And I has definitely carted
away far far more than I has brung.
But, just like "self abuse" it's all "in the wrist action".
Just don't do it 'til you go blind.
V
On Jan 27, 9:22 pm, Ignoramus6496 <ignoramus6...@NOSPAM.6496.invalid>
wrote:
Quote: Thanks to all. This rod runs smooth and easy using DCEP. I think that
it is great.
i |
|
|
| Back to top |
|
| Ignoramus10675 |
| Posted: Sun Jan 28, 2007 12:14 pm |
|
|
|
Guest
|
Ernie and Vernon, I tried your technique of weaving a little bit, with
reduced amperage, and it worked better than what I tried before.
My welds are still a worse than flat position, but not by as
much.
I did one half of the A. Can't do much now, having to watch a 1 year
old. After the A is done, I will need to attach the axle mounting
pieces.
i |
|
|
| Back to top |
|
| Steve B |
| Posted: Sun Jan 28, 2007 12:48 pm |
|
|
|
Guest
|
"Ernie Leimkuhler" <stagesmith@mindspring.com> wrote
Quote: Vertical can be done as a stringer bead (no weave) or a slight weave,
but a weave no wider than 2 electrodes side by side.
Would not it be an exception on the last pass on a 1" plate open v test? I
just ask, because I've done those, and the distance seems like more than two
rods wide.
Steve |
|
|
| Back to top |
|
| Ernie Leimkuhler |
| Posted: Sun Jan 28, 2007 3:00 pm |
|
|
|
Guest
|
In article <St4vh.2833$uj5.1538@newsfe07.phx>,
"Steve B" <dsrttrvlr@aol.com> wrote:
Quote: "Ernie Leimkuhler" <stagesmith@mindspring.com> wrote
Vertical can be done as a stringer bead (no weave) or a slight weave,
but a weave no wider than 2 electrodes side by side.
Would not it be an exception on the last pass on a 1" plate open v test? I
just ask, because I've done those, and the distance seems like more than two
rods wide.
Steve
Cover passes on deep V welds are an exception, but that is more of a
test plate technique.
You still have to travel slowly. |
|
|
| Back to top |
|
| Steve B |
| Posted: Sun Jan 28, 2007 7:04 pm |
|
|
|
Guest
|
"Ernie Leimkuhler" <stagesmith@mindspring.com> wrote in message
news:stagesmith-5DE1D1.11002028012007@news.west.earthlink.net...
Quote: In article <St4vh.2833$uj5.1538@newsfe07.phx>,
"Steve B" <dsrttrvlr@aol.com> wrote:
"Ernie Leimkuhler" <stagesmith@mindspring.com> wrote
Vertical can be done as a stringer bead (no weave) or a slight weave,
but a weave no wider than 2 electrodes side by side.
Would not it be an exception on the last pass on a 1" plate open v test?
I
just ask, because I've done those, and the distance seems like more than
two
rods wide.
Steve
Cover passes on deep V welds are an exception, but that is more of a
test plate technique.
You still have to travel slowly.
And pause momentarily at each side to tie it in.
A passed test open root, vertical, travel up, 6010 root pass, 7018 fill on a
1" plate is a thing of beauty, in my humble opinion. Takes a while to do,
and takes a while to learn how to do it.
Steve  |
|
|
| Back to top |
|
| |
|
Page 1 of 1
All times are GMT - 5 Hours
The time now is Wed Jul 09, 2008 2:24 am
|
|
