Author Topic: New welder and fundamental mistakes  (Read 1739 times)

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Offline Rickster

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New welder and fundamental mistakes
« on: September 16, 2009, 09:56:46 PM »
I finished welding in the replacement battery tray in the Mustang.  It took a lot of re-work.  As my fist MIG welding project I made a mountain of fundamental mistakes:

- I didn't practice on scrap metal.  Just headed right in trying to dial everything in and weld it together at the same time.

- I had a huge repair panel and only needed about a 1/4 of it for the repair.  Two mistakes here:
  - I cut away the rusted out portion of the panel. But I had difficulty with blowing holes along the edges because the metal was too thin there.  I should have used more of the repair panel and cut back deeper into the stock panel for better metal.
  - In cutting the repair panel I left too much gap in places along the edges.  I should have taken more care to make the edges as close as possible.

Well I got to learn the hard way.  But I've gotten really good at welding and grinding and welding some more and grinding some more.

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New welder and fundamental mistakes
« on: September 16, 2009, 09:56:46 PM »

Offline pipehack

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Re: New welder and fundamental mistakes
« Reply #1 on: June 15, 2010, 08:45:49 PM »
Just saw this thread... I'm still burning through. I really do no have a pile of scrap to practice on so sometimes I have to use the machines "suggested" settings on the inside of the panel and hope for the best. Usually turns out for the worst.  :no_no:

Offline Fins/413

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Re: New welder and fundamental mistakes
« Reply #2 on: June 16, 2010, 05:46:09 AM »
I'm in the same boat, any info along these lines will be helpful.
Eric Corse
Wake Forest, NC
1959 Chrysler New Yorker
1982 Ford Econoline

Offline 1977Impala

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Re: New welder and fundamental mistakes
« Reply #3 on: September 21, 2010, 10:15:47 PM »
What machines is everyone using? if you are burning through good solid sheetmetal  you need to back down the voltage, if you have a cheaper machine with only a few adjustment settings  your gonna hate life until you get a little better machine. Make sure what you are trying to join is CLEAN metal, You can't weld rust.
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Offline 79pacecar

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Re: New welder and fundamental mistakes
« Reply #4 on: September 29, 2010, 12:11:48 PM »
One other thing that helps when welding thin sheet is (if you can get to it) put a piece of copper behind the joint, The steel wont stick to the copper & it will keep you from blowing through

1/4 thick copper is plenty..
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Torque is how far you take the wall with you.

Offline 1977Impala

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Re: New welder and fundamental mistakes
« Reply #5 on: October 03, 2010, 09:45:25 AM »
Yea I took a small lenght of 3/4 copper pipe and smashed on end flat so I could use it to help weld molding and trim holes.
"Ten six niner! Ten six niner!, We've got whores in the city, we
need back up now!