Charlie57
Valued Contributor
Posts: 3098
Loc: Lebanon, Tennessee
Reg: 03-30-08
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10-18-16 11:27 AM - Post#2657195
Up till now I had been using a Tractor Supply Farm Hand welder. I just picked up a Lincoln 125 and I am testing it out. Now I'll be the first to say I ain't no welder. I was trying to weld in this patch panel. I drilled 3/16" holes and started, really thought I was doing good, both of these two welds did not stick. They came right off when I removed the clamps. From the pictures what looks wrong? Too fast wire speed, no heat, too much heat? Any tips?
Charlie
Going to guess part of the reason was the one side was not cleaned enough.
[image] Untitled by Charlie Shew, on Flickr[/image]
[image]
This is the back side of the weld.
Untitled by Charlie Shew, on Flickr[/image]
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grumpyvette
Performance Subject Matter Expert --
Posts: 17800
Age: 76
Loc: farmersville texas USA
Reg: 03-16-01
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10-18-16 12:02 PM - Post#2657202
In response to Charlie57
the surface to be welded must be pre-cleaned with a wire brush,or disc grinder,
down to clean rust free,
degreased, paint free, bare metal,
that looks like you tried FLUX CORE welding ,
not MIG with a gas shield??
and used not enough amps, and/or the wire to mig torch distance was sticking out too far.
https://www.youtube.com/watch?v=7r437J7EO5A
http://www.eastwood.com/blog/eastwood-chatter /10-t...
http://www.rodauthority.com/tech-stories/welding- 1...
http://garage.grumpysperformance.com/index.php?thr...
http://garage.grumpysperformance.com/index.php?thr...
my old college engineering instructor used to say(back in the late 1960s) in my welding shop class
We can teach monkeys to MIG weld so I assume theres SOME FAINT HOPE for you gentlemen"
honestly I think he was correct, in that with a PROPERLY ADJUSTED MIG WELDER with the correct amps, wire , wire speed and gas shield flow rates the actual welding process is just not very difficult if your dealing with clean grease free metal surfaces, especially if your welding surface is not above you.
like most things, some time spent researching the subject and reading related books and watching a few related videos will tend to help out the newer guys considerably
IF YOU CAN,T SMOKE THE TIRES AT WILL,FROM A 60 MPH ROLLING START YOUR ENGINE NEEDS MORE WORK!!"!
IF YOU CAN , YOU NEED BETTER TIRES AND YOUR SUSPENSION NEEDS MORE WORK!! |
Edited by grumpyvette on 10-18-16 01:30 PM. Reason for edit: No reason given.
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grumpyvette
Performance Subject Matter Expert --
Posts: 17800
Age: 76
Loc: farmersville texas USA
Reg: 03-16-01
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10-19-16 05:07 PM - Post#2657397
In response to grumpyvette
WELL? what have you tried and what were the results of changes made?
no one learns to weld INSTANTLY, its a learning process, I,ve been welding for 47 years and I still learn new tips and tricks constantly
IF YOU CAN,T SMOKE THE TIRES AT WILL,FROM A 60 MPH ROLLING START YOUR ENGINE NEEDS MORE WORK!!"!
IF YOU CAN , YOU NEED BETTER TIRES AND YOUR SUSPENSION NEEDS MORE WORK!! |
Edited by grumpyvette on 10-19-16 05:09 PM. Reason for edit: No reason given.
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 wagonman100
Site Ambassador
Posts: 15802
Loc: Baltimore, MD
Reg: 11-27-04
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10-19-16 07:01 PM - Post#2657418
In response to grumpyvette
Looks like your amps were pretty close to correct, but I think you wire speed may have been too fast and maybe your technique was off. You basically filled the hole in the top panel. Obviously welding to clean metal goes a long way to making a good weld. I always clean the bottom panel and get the metal around the hole in the top panel clean and down to bare metal. I then strike the arc inside the hole work my way around to the rim of the hole in the top panel. This ensures the bottom layer is getting hot enough for the weld to penetrate and that the weld will be hot enough to melt the top layer and fuse the two together.
Jay
Friends don’t let friends drive Fords.
1999 Silverado Z71 4X4 extra-cab short bed
1983 Malibu Fauxmad - tubbed
1978 El Camino Kustomized
1972 Monte Carlo
1957 210 handyman wagon
1957 Nomad sport wagon
1957 Cameo Carrier |
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