Mig-short bursts

[Dino]

Hi Fellas,

I'm happy to report that I am succeeding in welding 22 gauge metal without blow thru by setting my HH175 at a setting of 1 and wire feed around 50 with a stickout of 1 1/2" or so.

I am doing short bursts every inch or so and then coming back to complete...Is this what is referred to as "stitching"?

Gettting better all the time, thanks again

Dino

[Sberry]

Stitching would be leaving a space in between, lets say every 3 inches put an inch, then come back and add another inch to each one, the reapeat untill all the spaces are full,

[cutter]

Is this 1 1/2 inch stickout that Dino mentioned really necessary? (Don't mean that to sound insulting, Dino) That sounds like it would defeat shielding gas & just make a helluva mess with fluxcore.

[Sundown]

S is 100% on, I think that the further apart the "stiches" are the better, I try to get 1" stiches at least 3-4" or more. Also I try to drink some coffee between welds (cool off time). Probably don't need to do that but I like coffee.

[echo8287]

Welding light gauge metal

Dino ,what size wire are you using? And are you using gas or fluxcore?

[Roger]

He states succeeding in welding 22 gauge metal without blow through doing short bursts using 1.5" stickout. This leads me to guess he is using self-shielding FCAW rather than MIG as stated in topic.
Self-shielding FCAW uses more stickout than MIG partly because no shielding gas and to preheat wire which makes it weld better. I think 1.5" stickout is excessive for .030 or .035 fluxcore wire used in HH175. I recall .5 inch stickout is normal for that wire and I use a little more .75" to 1" when wire is welding bad due to absorbing some water.

22ga. and even 24ga. should be easy to MIG weld with .023" solid wire and C25 gas.
New .030 metal core wire is now made that is used with C25 gas for welding down to 28ga .015" steel.

http://www.jwharris.com/images/twentygauge.pdf

[Dino]

Thanks for the responses,

I guess my original thread at 1 1/2" may have been too exagerated, in fact it's more like 3/4", sorry about confusion.

I am using the J.W. Harris product, Twenty Gauge .030 core wire and using 75/25 gas.

What I find different about this product is that it seems I get a nice "sizzle", but I can still blow thru if I'm not careful.

This is why I referred to "short bursts" in my earlier thread almost like tack welding a series of welds and filling in using same procedure, is this acceptable? Not very pretty but after grinding looks o.k.

Thanks
Dino

[Dan]

Originally posted by Dino
Thanks for the responses,

I guess my original thread at 1 1/2" may have been too exagerated, in fact it's more like 3/4", sorry about confusion.

I am using the J.W. Harris product, Twenty Gauge .030 core wire and using 75/25 gas.

What I find different about this product is that it seems I get a nice "sizzle", but I can still blow thru if I'm not careful.

This is why I referred to "short bursts" in my earlier thread almost like tack welding a series of welds and filling in using same procedure, is this acceptable? Not very pretty but after grinding looks o.k.

Thanks
Dino

Personally on 22 ga with a HH 175 I d just use an .023 solid wire and the C-25. Actually, since I also have a bottle of 85/15, I d use it as my shielding gas instead of the higher energy C-25.

[Roger]

What polarity are you using with 20Ga. wire?
3/4" is most stickout I would use with that wire because of shielding gas. To hold that much stickout I would pull out the nozzel 1/8" or use extended nozzel.