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Mig Welding Question.


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#1 IamSherwood OFFLINE  

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Posted January 20, 2014 - 09:04 PM

This afternoon, I finally got to playing with my new Lincoln 140.

Can anyone tell me why I'm getting splatter seen in a couple of the

pictures?

 

DSCF0260.JPG DSCF0261.JPG

DSCF0262.JPG DSCF0263.JPG

DSCF0264.JPG DSCF0265.JPG

DSCF0266.JPG


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#2 MH81 ONLINE  

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Posted January 20, 2014 - 09:07 PM

I see the gas, but is it wire that is meant for gas?
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#3 olcowhand ONLINE  

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Posted January 20, 2014 - 09:13 PM

Is the polarity correct for using gas?  The gun should be +.  On most, this is done by swapping cables inside where the wire feed spools are.


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#4 IamSherwood OFFLINE  

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Posted January 20, 2014 - 09:16 PM

I see the gas, but is it wire that is meant for gas?

 

Yes, L-56.

It only happened 2 or 3 times.

Settings in the 1st picture produced the weld in the 2nd pic.

Weld in the last pic, was produced with these settings. (same pcs. of material)

 

DSCF0267.JPG


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#5 IamSherwood OFFLINE  

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Posted January 20, 2014 - 09:20 PM

I see the gas, but is it wire that is meant for gas?

 

Yes, did that.


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#6 Texas Deere and Horse OFFLINE  

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Posted January 20, 2014 - 09:22 PM

Will, It looks to me like your holding the gun too far from the work and you maybe a little too high.


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#7 Texas Deere and Horse OFFLINE  

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Posted January 20, 2014 - 09:23 PM

How much of angle are holding the gun at?


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#8 cookiemonster OFFLINE  

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Posted January 20, 2014 - 10:16 PM

It doesn't look like spatter, it looks like you had the heat too high for your speed and it melted the wire before it got to the piece. 

keep on practicing.

 

You're using solid wire and NOT flux core, right?


Edited by cookiemonster, January 20, 2014 - 10:16 PM.

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#9 ol' stonebreaker ONLINE  

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Posted January 20, 2014 - 11:18 PM

You didn't state wire diameter. Stick w/ "c" voltage setting and play w/ wire speed and speed up your travel. You're piling it up too thick. Are you hearing the "sizzling bacon" sound?
JMHO,
Mike
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#10 IamSherwood OFFLINE  

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Posted January 21, 2014 - 02:18 AM

Is the polarity correct for using gas?  The gun should be +.  On most, this is done by swapping cables inside where the wire feed spools are.

 

Yes, changed that.

 

How much of angle are holding the gun at?

 

Around 30-35 degrees?? guessing.

 

It doesn't look like spatter, it looks like you had the heat too high for your speed and it melted the wire before it got to the piece. 

keep on practicing.

 

You're using solid wire and NOT flux core, right?

 

Correct, I was using solid wire. I'll be burning it up practicing in the morning. Thks

 

 

You didn't state wire diameter. Stick w/ "c" voltage setting and play w/ wire speed and speed up your travel. You're piling it up too thick. Are you hearing the "sizzling bacon" sound?
JMHO,
Mike

 

.025 wire.  The sizzling bacon sound I heard on the better looking welds.

 

Thanks for the input guys. I'll play with it some more, and report back.


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#11 KC9KAS OFFLINE  

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Posted January 21, 2014 - 05:13 AM

Since some of the welds look decent, your settings are probably OK. Your welding speed and angle as well as distance from the work piece all make a difference in the look (and strength) of the welds. 

Practice, practice, practice is the best advise.


Edited by KC9KAS, January 21, 2014 - 05:15 AM.

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#12 JDBrian OFFLINE  

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Posted January 21, 2014 - 06:05 AM

Too much stick out will do that. The welds look pretty good to me for the first time you've used that machine. That's a nice unit and available here for a reasonable price. Let us know how it's working out for you.


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#13 Alc ONLINE  

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Posted January 21, 2014 - 06:21 AM

Could the drive rollers be slightly too loose ? I keep mine just tight enough that I can hold the wire back without making a birds nest inside the machine but sometimes it needs to be adjusted a little more  ( roller wear ? ) when I start having problems getting a smooth weld .


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#14 CRFarnsworth ONLINE  

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Posted January 21, 2014 - 06:52 AM

Will,  Small wire (.025) = small weld. A rule of thumb is  If it has flux you pull it if it is hard wire you push it. (I break that rule all the time)  Gun angle, distance and hand speed are important.  Keep the nozzle close but not in your puddle you need the gas sheild flowing over the puddle for a clean weld.  Gotta go to work,  look forward to seeing your progress.  Rick


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#15 IamSherwood OFFLINE  

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Posted January 21, 2014 - 07:55 AM

Thanks guys.

Today I will practice, practice a lot.

I might watch the included DVD too.


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