[Tommy2069]

i was looking at some videos and came across one called mig like tig. i have been doing this type of welding for some time now infact it's the only way i weld now unless it's a rush job .welding this way i have found that i can have a fan blowing on me or i can weld outside with moderate winds blowing and not get pin holes in the weld.i will try to upload some pics on my welds as soon as i can.

[Farmwelding]

Nice weld. At first glance it looked like a tig weld to me. What is it a part for?

[AdVirMachina]

A video also. Are you using self shielded?

Irving, TX. Epicenter of the Metroplex!

[MinnesotaDave]

Out of curiousity, what specifically is the technique you are referring to that counters wind effects and such?

[Tommy2069]

It's duAL shield .045 I will make a video as soon as I can.

[Tommy2069]

heres a link to a video of some welds i made yesterday

https://www.youtube.com/watch?v=SeVw6sjI7TI

[DLewis0289]

The old timers used to call that squirt welding (squirt used to be old slang for sub arc also). Orange circle, stop, move, wait for orange just to go out, pull trigger again. Keep the orange circles the same size and move the same distance, it looks like that, similar philosophy like bumping anodized. Looks really nice until you pull a macro. I will do it for cosmetic reasons (just did it on a fire pit table I built.) but never on anything critical service.

[DLewis0289]

Here is an example of how I trigger sometimes. I just grabbed a quick scrap and ran vertical up. The guy had his machine set .035 hard wire, 28V with 75/25 so I just used it. It still has the ripple effect but I did not let it cool all the way before I pulled the trigger again. If you want really pronounced "dimes" with raised profiles you literally have to let the molten puddle completely extinguish before you "precisely lay another spot weld a 1/3 down on another spot weld".

If you could write a procedure I suppose you could try "manual pulse" operation and see if it would fly. I do know they make pulse MIG welders now but I have never had a chance to use one, am curious if anyone else has.

This is a great for square tubing, looks phenomenal as long as you have the time and it is not critical service.

Before Cleaning

IMG_3263 (2).jpg (109.49 KiB) Viewed 1634 times

After brushing

IMG_3264 (2).jpg (122.25 KiB) Viewed 1634 times

[Tommy2069]

You have to keep weld puddle wet at all times.never let it cool in between burst.and yes this is only to be done on caps.I never string off and fill welds with this procedure.now when welding school 40 pipe you can string it an then run a filler an cap all in one doing this.after 30 plus years I have never had a weld fail.

[Bsmith]

Here is an example of how I trigger sometimes. I just grabbed a quick scrap and ran vertical up. The guy had his machine set .035 hard wire, 28V with 75/25 so I just used it. It still has the ripple effect but I did not let it cool all the way before I pulled the trigger again. If you want really pronounced "dimes" with raised profiles you literally have to let the molten puddle completely extinguish before you "precisely lay another spot weld a 1/3 down on another spot weld".

If you could write a procedure I suppose you could try "manual pulse" operation and see if it would fly. I do know they make pulse MIG welders now but I have never had a chance to use one, am curious if anyone else has.

This is a great for square tubing, looks phenomenal as long as you have the time and it is not critical service.

IMG_3263 (2).jpg

IMG_3264 (2).jpg

If you were colder I think it would look more like you want. 16-20v is where I see most guys weld. I never see anyone weld above 22. So I am curious as to which is better.

[Tommy2069]

you have to weld really hot and never let the puddle cool. i run my machine so hot that if you try to keep trigger pressed and run a full pass you will burn through the metal.if you run a cold machine the weld will fail.i run the vlots at about 25 anh higher depening in metal thickness .you don't want the wire to ever touch the puddle . when your doing it right it will look just like tig welding the puddle will amediatly wet in and penetrate . right when you release the trigger move a tiny bit and press it again do not let puddle cool you want a nice molten puddle.i will try to make a video of me welding it's kinda hard to do when i'm the only guy in the shop and i only have one shield. i use this method on boat hull repair alot too i'll tell you this every job i done they call me back because of the nice welds other welders would go out and burn stick rods or mig on the inserts and with the thin metal they end up with titties hanging down but if you master this procedure you can run nice stack of dimes on any thickness metal and people will love it. it's not something you can just set a machine and produce a weld with it will take a little bit of time to get the hang of it mainly because of the heat and the time in between trigger pressing.after you get the hang of it you'll see that you will have barely any slag to chip because it will form a very thin layer no touching up starts and stops because every puddle is a start and stop. no more stopping to change position because you will learn to move as you go. when i do hull and bulkhead welds i will make a puddle and move the gun a bit farword then let off the trigger then backup and squeaze the trigger again it sorta puts a stringer at the same time as a cap you might think that this method will take longer than a regular weld but it doesn't i welded one side of a hull while a guy welded the other and i finished before him doing it the regular way you have to spray anti splatter then string it off then come back with wire wheel then spray antisplatter again then cap it then clean up starts and stops. my way is you spray antisplatter then you string it and cap it in one pass then wire wheel it and your done.

[Tommy2069]

here are some other welds on a mud mixing tank i'm redoing. you can see in the closeups there is no undercut also none if any grinding touchups.

https://imageshack.com/i/pnUXhe8kj

https://imageshack.com/i/pomOThmjj

https://imageshack.com/i/pnd8zFeSj

https://imageshack.com/i/pnLVV3y6j

https://imageshack.com/i/pnIIavc0j

[Bsmith]

you have to weld really hot and never let the puddle cool. i run my machine so hot that if you try to keep trigger pressed and run a full pass you will burn through the metal.if you run a cold machine the weld will fail.i run the vlots at about 25 anh higher depening in metal thickness .you don't want the wire to ever touch the puddle . when your doing it right it will look just like tig welding the puddle will amediatly wet in and penetrate . right when you release the trigger move a tiny bit and press it again do not let puddle cool you want a nice molten puddle.i will try to make a video of me welding it's kinda hard to do when i'm the only guy in the shop and i only have one shield. i use this method on boat hull repair alot too i'll tell you this every job i done they call me back because of the nice welds other welders would go out and burn stick rods or mig on the inserts and with the thin metal they end up with titties hanging down but if you master this procedure you can run nice stack of dimes on any thickness metal and people will love it. it's not something you can just set a machine and produce a weld with it will take a little bit of time to get the hang of it mainly because of the heat and the time in between trigger pressing.after you get the hang of it you'll see that you will have barely any slag to chip because it will form a very thin layer no touching up starts and stops because every puddle is a start and stop. no more stopping to change position because you will learn to move as you go. when i do hull and bulkhead welds i will make a puddle and move the gun a bit farword then let off the trigger then backup and squeaze the trigger again it sorta puts a stringer at the same time as a cap you might think that this method will take longer than a regular weld but it doesn't i welded one side of a hull while a guy welded the other and i finished before him doing it the regular way you have to spray anti splatter then string it off then come back with wire wheel then spray antisplatter again then cap it then clean up starts and stops. my way is you spray antisplatter then you string it and cap it in one pass then wire wheel it and your done.

We hold the trigger till finished welding. We use xray so I know the welds are good. Just different ways to do it I guess. Yeah id love to see you trigger the weld.

[DLewis0289]

here are some other welds on a mud mixing tank i'm redoing. you can see in the closeups there is no undercut also none if any grinding touchups.

https://imageshack.com/i/pnUXhe8kj

https://imageshack.com/i/pomOThmjj

https://imageshack.com/i/pnd8zFeSj

https://imageshack.com/i/pnLVV3y6j

https://imageshack.com/i/pnIIavc0j

Very nice!