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Feedback on my welds (new to MIG welding)

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发表于 2021-8-31 22:45:24 | 显示全部楼层 |阅读模式
I picked up a Craftsman 120V MIG welder (believe it's made by an Italian company) and started learning how to do basic MIG welding.Below are some pictures from today's practice.  I'd like feedback on the appearance and quality of the weld.  I'm not looking to become a welding professional, just an averagely good, backyard 'joe'.I'm using .30 wire with 75/25 gas.The wire speed is ~3 and the voltage is "C" on an A-D scale.Not sure of the metal thickness,I bought tube and flat stock at Tractor Supply, as I didn't have any scraps laying around. Pay no attention to the 'uglier' welds in the background
Reply:thier good but on the weld circled in red try to get some more weld to the bottom of the weld joint but good none the less just keep practicing and learning either by youtube or finding a skilled welder nearby and just keep welding
Reply:You need a bigger welder for that thickness. Would work for 1/8th" and under. See you did not penetrate in to the bottom piece. The toe did not wet in. Cleaning the scale off and preheating does help.Weld like a "WELDOR", not a wel-"DERR" MillerDynasty700DX,Dynasty350DX4ea,Dynasty200DX,Li  ncolnSW200-2ea.,MillerMatic350P,MillerMatic200w/spoolgun,MKCobraMig260,Lincoln SP-170T,PlasmaCam/Hypertherm1250,HFProTig2ea,MigMax1ea.
Reply:Thanks for the feedback fellas.  I know I need more practice, just wanting to be sure I'm moving in the right direction.
Reply:Clean the metal, and more volts. Looks cold to me..
Reply:Don't buy metal at the store to practice on.  Find a steel distributor near you, or a fab shop, and go there and talk to the owner about buying some scrap.  Sometimes they will even give some to you.  Like already mentioned, the welds are definitely cold (not enough voltage).  Cleaning the mill scale off, especially where your ground clamp attaches, and where you weld is going to help some. Use a propane torch or map gas, and heat up the metal before welding if you can not turn up the voltage.Here is a link to an online welding calculator to help you set your machine:http://www.millerwelds.com/resources...calculator.php   Also check out:http://www.weldingtipsandtricks.com/And for the price, this company has some of the best training videos out there:http://www.weldingvideos.com/Last bit of advise:Contact your local junior college and sign up for an intro welding class.  You will learn a lot, and the price of the class is usually cheaper then the electricity, scrap metal, and consumables you will use at home.GarLincoln Electric, Power MIG 256Hypertherm Powermax 45 Miller Dynasty 280DXSmith O/A torchGenesis of a welding table
Reply:180 Fright Mig .030 gas. Junk Steel, junk welder.. Attached Images
Reply:Originally Posted by xmancharl180 Fright Mig .030 gas. Junk Steel, junk welder..
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