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questions from a new guy

mig and flux core tips and techniques, equipment, filler metal

Re: questions from a new guy

Postby Poland308 » Thu Mar 30, 2017 8:48 pm

Can you post a picture of your mig gun? Looks like a gas issue. Might be plugged up in the gas nozzle.
I have more questions than answers

Josh
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Re: questions from a new guy

Postby Farmwelding » Thu Mar 30, 2017 9:20 pm

Poland308 wrote:Can you post a picture of your mig gun? Looks like a gas issue. Might be plugged up in the gas nozzle.

I agree, but I've run a fair share of mig with no gas due to idiocracy, diagnosed at birth, and that is part of it but there is something more. Another good question is what kind of steel and where did you get it from. Could be some weird alloy that does crazy stuff or has some weird contaminant.
A student now but really want to weld everyday. Want to learn everything about everything.
warning!! Bad English may be in post. It's off a phone/autocorrect. I've had teachers with worse spelling!
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Re: questions from a new guy

Postby Scott Morris » Fri Mar 31, 2017 4:49 am

Poland308 wrote:Can you post a picture of your mig gun? Looks like a gas issue. Might be plugged up in the gas nozzle.


Sure, when it is daylight out I will post a pic. When I press the trigger, I can feel the gas coming out. In response to someone else, the metal I am using to practice was purchased at Lowes.



Thanks

SM
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Re: questions from a new guy

Postby Scott Morris » Fri Mar 31, 2017 8:43 am

Here ya go... Doesn't look like it in the pics but there is an opening around the nozzle the gas comes out of. There is definitely gas coming out of it.

Image

Image
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Re: questions from a new guy

Postby PeteM » Fri Mar 31, 2017 9:14 am

So, that black cap is called the diffuser cover. The diffuser cover prevents spatter from destroying the diffuser when using self shielded flux core wire.

The diffuser evenly distributes shield gas within the nozzle to create a laminar gas pocket around the weld pool.

You have to take that black cover off and put a standard nozzle for that type of gun on to have gas coverage of your welds.

You should also clean the nozzle every so often to prevent blockage and maintain adequate shield gas coverage.
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Re: questions from a new guy

Postby Scott Morris » Fri Mar 31, 2017 10:06 am

PeteM wrote:So, that black cap is called the diffuser cover. The diffuser cover prevents spatter from destroying the diffuser when using self shielded flux core wire.

The diffuser evenly distributes shield gas within the nozzle to create a laminar gas pocket around the weld pool.

You have to take that black cover off and put a standard nozzle for that type of gun on to have gas coverage of your welds.

You should also clean the nozzle every so often to prevent blockage and maintain adequate shield gas coverage.



Wow..... you are one hundred percent correct. Just looking through the manual and I found what you are talking about. I don't find the other nozzle anywhere. Going to lowes to see if they carry it... Thank you very much.


SM
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Re: questions from a new guy

Postby PeteM » Fri Mar 31, 2017 10:17 am

Scott Morris wrote:
Wow..... you are one hundred percent correct. Just looking through the manual and I found what you are talking about. I don't find the other nozzle anywhere. Going to lowes to see if they carry it... Thank you very much.


SM


:) Thanks, but to be fair, it was Polands idea to get the pic.

You should be good to go with some clean steel. Happy welding.

ps. You'll want to turn down those settings back into a more normal range for that wire too.
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Re: questions from a new guy

Postby cherwolf » Fri Mar 31, 2017 11:52 am

Yesterday watched a video about his welder, the boring guy there stated, that that machine comes with flux core tip on gun, as I have never welded flux core, kept my 2 cts in pocket.

The video -> https://www.youtube.com/watch?v=x6WzZ_LoDSg
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Re: questions from a new guy

Postby Scott Morris » Fri Mar 31, 2017 2:49 pm

Amazing the difference a tip makes. Now with that problem solved. Thank y'all very much!! What could I do to improve from this bead?

Image
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Re: questions from a new guy

Postby exnailpounder » Fri Mar 31, 2017 4:24 pm

PeteM wrote:So, that black cap is called the diffuser cover. The diffuser cover prevents spatter from destroying the diffuser when using self shielded flux core wire.

The diffuser evenly distributes shield gas within the nozzle to create a laminar gas pocket around the weld pool.

You have to take that black cover off and put a standard nozzle for that type of gun on to have gas coverage of your welds.

You should also clean the nozzle every so often to prevent blockage and maintain adequate shield gas coverage.

Pete NAILED IT. Pictures sure do help.
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