Contact Tip and Nozzle Lengths Question

[Shootr]

Do they make different length nozzles and/or tips? On mine, the tip is recessed in about 1/4". Seems like if the tip were more flush to the nozzle end I would have a little better visibility when using .023 wire. The nozzle is so close to the work piece it's hard for me to get a good sight on the puddle and/or wire.

I use the 5/8" ones that fit in the Lincoln Magnum 100L style guns. Just wondering.

[Welder Dave]

Looks like a KP21-50-F nozzle is flush. Just make sure it's a Magnum 100L and not a Magnum Pro 100L.

https://images.homedepot-static.com/...56c9227002.pdf

[Oscar]

BTW, either your contact tip is severely worn out, or its the wrong size.

[Shootr]

BTW, either your contact tip is severely worn out, or its the wrong size.

Arrrrgh...wrong tip ...Must be awesome to have good eyes! Grassy ***.

[Shootr]

Looks like a KP21-50-F nozzle is flush. Just make sure it's a Magnum 100L and not a Magnum Pro 100L.

https://images.homedepot-static.com/...56c9227002.pdf

Awesome - thanks for posting this Between having the correct contact tip in it and a flush nozzle - be interesting to see how things change/improve.

[Oscar]

Welcome. You can always slice off the needed amount off the old nozzle if you can spare it. For 023 wire, might even be best to have it protrude 1/16"-1/8".

[Shootr]

Quick update: Sliced off a bit of the existing nozzle (have 3 spares) to get it flush with the (correct) .023 tip.



Probably need to turn up the gas flow a touch, but bottle ran dry after 5 beads (was at 20CF/H). Visibility is better and I think I can tell where the fine tuning still needs work. Moving the gun more smoothly, watching the stick out distance better, angle of the gun, etc.

On this one, if I were to self-critique, looks like the toes on the bottom horizontal piece weren't quite wetted(?). Maybe the wire angle/direction was favoring the vertical piece a little?


This one, not sure what the occlusions are from. Maybe gas running low.


So, starting to get comfortable in this position - only a zillion left to go...

[Oscar]

Don't assume it's all technique. There is such a thing as incorrect MIG settings, but overall looks good from here. You have to be able to describe the big picture in order to see the big picture. Also, are you using CO2 or C25 ?

[Shootr]

Don't assume it's all technique. There is such a thing as incorrect MIG settings, but overall looks good from here. You have to be able to describe the big picture in order to see the big picture. Also, are you using CO2 or C25 ?

The settings were: C25 at 20CF/H, 125A at 23.5V, .023 solid wire.

[Welder Dave]

Your gas flow is fine but get some nozzle dip to prevent spatter from sticking. Spatter build up can cause problems, especially when it decides to let go into the puddle. Looks like your travel speed could be a little faster. On a proper size fillet weld the leg length (distance from inside corner to edge of weld) should be equal to the thickness of the thinner plate. If both plates are 1/8", the weld should 1/8" out from the corner and 1/8" up from the corner. If the plates were different thicknesses the leg only has to equal the thinner plate. You could try slowly twisting your wrist side to side to wash the edges of the puddle in. Below are some examples of nozzle dip. Cooter Snot seems like you pay a lot for the name.

https://www.amazon.com/Best-Welds-We.../dp/B01LW3SXZ0

[Oscar]

The settings were: C25 at 20CF/H, 125A at 23.5V, .023 solid wire.

125A is bordering on the limit of what 023 diameter wire can carry AFAIK. For anything over 70A or so, I'd suggest 030 wire. Don't get me wrong, you can obviously run 023 wire up into the higher WFS ranges, but there come a point where the wire will no longer carry any more amperage so you might not get the proper toe-fusion you are looking for. Since the wire will no longer carry anymore amperage, the metal deposition will still be there, but it will be missing heat from the [missing] amperage, and you can't compensate with more voltage because you'll just get tons of spatter. Just my take from my observations.

[Rangerhgm]

I've been using this anti spatter.....on my table, weldment and mig nozzle.....works well.

I use it in a small spray bottle.

https://www.amazon.com/Simple-Green-...6459770&sr=8-1

[Oscar]

I've been using this anti spatter.....on my table, weldment and mig nozzle.....works well.

I use it in a small spray bottle.

https://www.amazon.com/Simple-Green-...6459770&sr=8-1

I didn't even know Simple Green made that! Is it a gel or a regular liquid?

[Rangerhgm]

It's a thin clear liquid. I put it in small plastic spray bottle and use it to spray the table, weldment and nozzle. It's worked well for me, and a gallon will last a loooong time.

[psacustomcreations]

In regards to anti-spatter, Fireball tools tested over 40 products in this video.



Sent from my SM-G930V using Tapatalk

[Oscar]

Nevermind, lol.

[ttoks]

BTW, either your contact tip is severely worn out, or its the wrong size.

some would call that an asset, I was recently doing some welding with .045 ER90S-B3 wire using a 5/64 contact tip and it worked like a charm, a .045 tip would close up with spatter within half an hour.

In fact I almost always use a tip one size bigger than my wire for that reason.