Push vs Pull: Flux Core Edition

In the last episode we did a push vs pull test with spray arc MIG where we did a cut and etch to examine if the travel angle made a difference. Today we are doing a similar test with Gas shielded flux core welding. We had some comments in the previous video that wanted us to test it at a more drastic angle, so in this video we are raising the stakes and doing both tests at a 25 degree angle.
Talk with Bob, Jason and Mancub!

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#welddotcom

[hodgepodgeenginerd]

A video on depth of penetration at differing guns angles would be informative. As in 10 degrees vs 20 vs 45 etc

[GearheadGrows]

The results were exactly what i expected thanks for this video ... but!!! One more test 7018 vertical up weave technique versus stringers

[kenbudd]

I may be missing something but it looked like they were pushed?

[alexweeks]

This was a really interesting test, Jason! I knew that a drag angle was suggested to avoid slag entrapment, but I didn’t expect to see much of a difference in the penetration profile. Very cool! 👍👍

[Kevin.L_]

Always worth watching! Thanks guys. This furthered my understanding of push vs pull.

[tomim]

You really can't judge a book by its cover! Thanks for the in-depth look at the welds, that really tells the whole story.

[rvalcourtpersonaca]

Yes I would like to see solid wire with 75/25 short circuit and self shielding fcaw. For those of us who are no longer into production stuff. I’m just playing around with the small stuff now. Good vids.

[bazkeen]

If it has slag then drag. Learn't that one 60 years ago. Looks like it still holds true.

[robertblackshear]

At my old job we always push dual shield flux core using CO2 gas. I have always passed my bend tests using this method but my travel angel was mush steeper and I moved relatively slower.

[davidusry]

I run .052 71T1 everyday and i find straight in gives the best of both worlds when welding downhand. Itll lay better like a slight push but itll also penetrate excellent like a pull.

[justinmixon]

I've seen a lot of UT failures from pushing instead of pulling.

Great video!

[goldfinger]

Looks like the torch was moving from left to right in both pull and push setup.

[winnielessin]

that was a cool experiment. Something I probably wouldn't try myself with my everlast welder so definitely learned something new here.

[madcapmagician]

Wow pretty eye opening. Looks like I'm gonna have to work on my drag technique.

[michaelwatson]

great video bit confused as both welds looked as though they went in the same direction

[larescats]

Very good vid and very informative nice to see the outcome in the microscope when done

[donperry]

We use ABB robot welders at work and I'm constantly reworking the welds, we used to use the .45 fcaw but witg the lack of penetration and heavy spatter with most every push welds, we stopped using it, and went ti using .45 scaw instead, changed the gas settings to 90/10 and let her rip.

[solomonstello]

Both takes are push!! How'd you guys do that?!

[kylebornschein]

so if i weld from right starting point to left with a idk say 10° angle is that pushing or dragging? this video is confusing they both look like they are pushing and not pulling, pulling to me is starting left to right with a gun angle pointed back into your puddle

[keithhunchuk]

Honestly i would LOVE to see this test done with a gasless flux core wire from Lincoln Electric. Its called NR 232 and is an .072 wire size. Ived used it extensively and was blown away at the penetrating qualities. We were using it on plate that was as thick as 3.5" and it felt like we were riding a tidal wave of metal when using it. It is designed for high deposition and can be used in all positions. When cranked up to 350 ipm and 24.5-25 volts i felt like it was penetrating like 3/8" into the welds below. We ran parameter testing to check the overall amperage being ran through the wire at those settings and it was around 400 amps!! If you have a chance to do the test using it you will have to use 3/4" plate for the t joint as it is designed to be used with thicker steels. Even if you dont run it through the tests youve been using in these past episodes it would be interesting to see your perspective on its characteristics. It almost feels like cross between wire and stick. Takes some practice to get used to it as it is unlike any wire with shielding gas. Definatly a unique niche kind of wire but ive seen it being used more and more due to the cheaper overall cost and ability to nail UT and xrays. Check out lincolns videos on it for use they have alot of good videos on youtube about it!