How to MIG Weld : How to Do MIG Tack Welding

How to MIG Weld : How to Do MIG Tack Welding


Hi I’m Mike Rogers and we are making this
video for expertvillage.com on the uses of a mig welder. The next step that we are going
to show you is a very useful technique creating tack welds. Why do we need tack welds? Well
when you are setting up to create something were joining tip is steeled together you don’t
necessarily get it right the first time so the tack weld becomes very important. All
we need to do is decide a way that we are going to place something to joint these two
items together and we carefully measure the position and decide were it wants to be. We
place on a …clamp and we apply a tack weld. Close your eyes. Okay we have tacked our two
pieces together. Now this is just a small weld we will hold it there quiet strongly
so the two wont fall apart but, lets say oh dear and that is wrong I made a mistake what
we could easily do is break this weld. Separate the two pieces and start again. So oh yes
that is better. It should have been there. Again tack weld and we could have another
look lets see oh yes that is fine that is so nicely lined up we can go ahead and weld
those two items together.

12 thoughts on “How to MIG Weld : How to Do MIG Tack Welding

  1. any tip on ideal weld settings? im novice and just curious how they do the settings. im practicing and my welds doesnt seem to penetrate well and look ugly as hell. any tip would be appreciated. tyty

  2. in my experience, if your welds arent penetrating you need more heat to get deeper into the metal. Just make sure youre not going to blow a fuse in your shop or anything. one reason welds can be ugly is because your gas isn't at a high enough psi. If you let O2 into the welding environment it can screw up your welds

  3. first tip is to read your w.p.s. ….in there you will find your parameters, then set your machine according on a scrap piece of steel until you get the desired bead. spray tranfer is different than regular mig welding as i.e. when you spray tranfer all you hear is a hiss ….no sound like cooking bacon. and that tack was really suck ass. anyone doubts my skills ….go to my page and look at my uploads i have a couple short vids of me welding…..and the bead when it's done.

  4. @theweirdthings both are similar, just use different shielding gasses. mig refers to metal Inert gas, Mag refers to metal active gas. an inert gas would be argon, so when welding, oh lets say aluminum, where you would have a 100% argon gas to shield the weld, that would be considered mig, because argon is an active gas, on the other hand, if you were welding stell with co2, you would be using an active gas and it would technically be considered MAG. hope this helps.

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