Hey Brand X

[Dan]

Scott,

Is this the type of short arc weld bead (see attachment) that pulse spray on steel looks somewhat like?

[Brand X]

Dan,
you can change the pulse rate and other things to probably get close to that. Really the way I used pulse on steel is to control the spray puddle so you can spray out of position. I do not have any pulsers at this time to show you how smooth and very fine ripples in the weld bead. Just think of pulse as a spray process and not of a short-arc one. My best looking weld bead ever was a pulse one and I tossed it out.:mad: I was just testing it on some .250 mild steel.

[Sberry]

If pulse would help spray ot of position it would be something that might interest me. Thats a big reason I dont spray. That and I seem to know what fusion looks like so I havnt had much need to do anything differently. I short arc everything but my work is mostly light, very little heavy stuff.

[Brand X]

Sberry,
you might want to forget the pulse and look into self shielded flux-core wire. Just a thought.:D

[Sberry]

I have ran miles of fluxcore,, ha,,,, I really dont need more stuff,,, I would have to buy another machine. We can run sticks if we have to but short arc works good for us. If I was in the biz full time I probably would set another machine with it, but I dont weld much anymore. Been waiting months to finish the roll of L 56 and try a roll of the Hobart. They only had it in 44#, wonder how long it will take to burn that?

[Brand X]

Originally posted by Sberry27
I have ran miles of fluxcore,, ha,,,, I really dont need more stuff,,, I would have to buy another machine. We can run sticks if we have to but short arc works good for us. If I was in the biz full time I probably would set another machine with it, but I dont weld much anymore. Been waiting months to finish the roll of L 56 and try a roll of the Hobart. They only had it in 44#, wonder how long it will take to burn that?


I meant gas shielded flux-core anyway. Lots of different stuff for about any need other then short-arc.:cool:

[evaporator]

While you guys are driving on the subject, let me pull along side and ask, "Just what is "spray" welding?" I see it all the time on the forum. Is it done by special equipment, or is it a stick welding technique?

[Planet X]

Originally posted by Brand X
I meant gas shielded flux-core anyway. Lots of different stuff for about any need other then short-arc.:cool:


Interesting....:D

[Rocky D]

Originally posted by evaporator
While you guys are driving on the subject, let me pull along side and ask, "Just what is "spray" welding?" I see it all the time on the forum. Is it done by special equipment, or is it a stick welding technique?

Spray arc, or spray arc transfer is a form of MIG welding. It has higher wire feed rates and higher volt/amp parameters. You also use a different gas mix...various mixes of argon/co2 or ar/o2 gas.

The higer parameters make the transfer into a spray, from wire to basemetal and penetrate much deeper....however it is also much hotter to run, and heavy gloves and covering all exposed skin is a must.

Here is an extreme version of a spray arc weld...2" HRS to 5" HRS. The weld is 1 1/2" wide....single pass, using 1/16" E70S-6. 315amps amd 28 volts.

[Rocky D]

This is the weldment I built with spray arc...7 tons

Dan has some excellent examples of spray transfer using a 210, on lighter material. You can do a search here and find more than you really wanted to know about it. :D

[Sberry]

Hey Rocky,, exactly where on the airplane does that thing go?

[evaporator]

Originally posted by Rocky D
This is the weldment I built with spray arc...7 tons

Dan has some excellent examples of spray transfer using a 210, on lighter material. You can do a search here and find more than you really wanted to know about it. :D

WOW!! Just how deep does the weld penetrate on that 5"? I never would have believed those lifting eyes were thick enough, but then, I'm still muddlin' and puddlin' around with 3/16 and 1/4, and thats probably as thick as I'll ever work with. Is that 5" cut with water jet, laser, or what?

[Rocky D]

Originally posted by Sberry27
Hey Rocky,, exactly where on the airplane does that thing go?

Don't really know where...but it shouldn't be too hard to find:eek: :D

Actually it goes on a machine that streches skins for the airplane.:p

[Rocky D]

Originally posted by evaporator
WOW!! Just how deep does the weld penetrate on that 5"? I never would have believed those lifting eyes were thick enough, but then, I'm still muddlin' and puddlin' around with 3/16 and 1/4, and thats probably as thick as I'll ever work with. Is that 5" cut with water jet, laser, or what?

The 5" steel was cut at the mill with oxy Acetylene. Mill scale was real thick on it...I removed all of it with a needle gun scaler.:eek:

[Rocky D]

Here they are after stress relieve, sandblast and machining. I've never shown this picture before. The manifold was all heliarc welded.