The ring of cleaning should have changed as well it should be noticeable the indication of surface melting or appearance of such change occurring. I decided to throw together a few common mistakes and corrections for beginners when learning the “black art” of TIG welding aluminum. That said, it also appears that is where you are having such issues? How to MIG Weld Aluminium Strike a clean welding electrode around an inch from the start of your weld, then quickly move it over to the point where you want to start welding. Pull long arc, run some short arc, and adjust amperage up and down confirming a complete range of amperage control. A freshly ground tungsten tip does ball up faster when set to a lower number. Are your consumables in good shape? I'm 14 and just started, I keep my auto-darkening helmet to go to around shade 10 in dark-state and I don't know what I'm doing wrong to not be able to see the weld puddle that is 'present' during welding. A cup size of 6. TIG welding aluminum can be more difficult than steel; even with a simplified TIG welder like the Eastwood TIG 200 AC/DC. I used 3 different machines for this video… A miller dynasty 280… an everlast 210 ext. Even on a short weld like this there are small fractures that are already forming, not what you want on anything you care about! The added shielding coverage when using a gas lens allows you to turn your setting more towards the negative side for a tighter arc and weld puddle. Overzealous tightening of the backing cap, or using mismatched collets/collet bodies/tungsten size, can twist or distort the collet. I noticed in a picture you have hi frequency set to max. The clearance effect or AC Balance control is the most important dial to learn when welding Aluminum with your TIG welder. Above you can see an example where I let off the pedal very quickly and immediately pulled the torch away on a hot weld. When I have issues, I like to start at where the circuit is made, the arc, and work my way back toward the machine. Not saying it is, but excess hi freq. You did mention however it was previously looked at? Use a string bead technique as you move along the weld, but be careful not to change the angle of the electrode as you proceed. If adjustment of the balance control dial changes that, or those values, I would see it as functioning? Take your time and keep some of these key steps in mind and you’ll be on a path to close-up worthy welds! At first the arc will turn a small circle of the metal white, then the area will increase in size and the “eye” of the puddle will begin get shiny and turn into a liquid. Out of position welding is a fast whipping or steady motion with a focus of staying ahead of the puddle. It should be connected to the negative, work clamp to the positive. When welding, keep the proper aluminum filler electrode or rod free of contaminants and melt it with the base material to create a constant welding puddle; GMAW/MIG. One slightly tough part is welding 3/8" to .062" You need to get almost all the heat into the 3/8" material. 3/32" if memory serves. Don’t pull away!- Most of us learn MIG or ARC welding before we tackle TIG welding. Although they are both red, the one under the gas valve is electrode, the other work clamp. Helium is the gas that kind of changes everything. Just know that TIG welding is not the sole technology for the process. ... No, you're just not good at feeding filler. Some tips that will help you use direct current to TIG weld aluminum are: Be safe. The other thing that can happen is that the weld is “shocked” from going from hot to cold so quick in that it could develop hairline cracks in that last bit of weld that WILL spread (Crack is bad Mmmmkay?). A good rule of thumb is to tilt the torch back 10-15 degrees from the way you’re traveling on the work piece (left to right for a lefty and right to left for a right handed torch holder). As long as you maintain a consistent rhythm combined with steady to rch movement and puddle control, you’ll be laying a proper weld bead on aluminum in no time. This is insightful and relevant. I would turn it down. I know this may sound like a dumb question to ask, but is there a chance you have your torch connected to the wrong terminal? This bad habit can be tough to break if you’re use to these other types of welding, but it’s necessary to break if you want to make sure your beautiful stack of dimes weld doesn’t fail! This coating metlts at a higher temp than the aluminum base metal itself. The ideal distance from the electrode to the weld puddle is the thickness of the electrode. it seems that when i try to feed the filler material into my puddle, it just ***** up and get blown out of the puddle. Sometime it may require a light polishing or … Is this aluminum or steel? If you see your filler rod balling up too early or the puddle opening up try changing your torch angle mid-weld and see if that solves the issue. TIG welding and MIG welding can both achieve good welds in the aluminum material category. All other functions off. The pictures you posted of the Aluminum spots showed lots of cleaning. In the end nothing can beat practice and repetition, but if you’re conscious some of the common mistakes others make you can correct as soon as they happen to you. You can see the brown halo around the weld and spatter of dirt that was forced from the weld. However, this heat must be controlled to prevent a runaway puddle or burn-through. A big mistake we see beginner TIG welders make when learning how to weld aluminum is not waiting for the puddle to fully initiate. This means you will have to wait a few seconds before a puddle starts. This is a big no-no with TIG welding, ESPECIALLY on aluminum. Adding a little more filler metal with each dab will produce a pronounced appearance, and adding less material will create a smooth appearance on finished welds. In Tungsten Inert Gas (TIG) welding, a tungsten electrode is used to heat the metal, while Argon gas protects the weld puddle from airborne contaminants. TIG can use AC current in order to achieve an optimal weld puddle in aluminum. 2. Lastly, when TIG welding aluminum, do not start welding until the puddle has the appearance of a shiny dot. can't get the base to puddle. Any help would be greatly appreciated! Now you mention a few other things that jump out to me. Just a thought? One was tungsten size. Great info. tig puddle problem 07-12-2005, 07:20 PM. Create high quality, clean welds With superior arc and weld puddle control, TIG allows you to create clean welds when appearances count. by Harry haithcoat (St.Louis, missouri) hi, i have been reading up on tig welding, it's been about 22 yrs sience i did any tig,a friend of mine just bought a Thermal Arc 185tsw ac/dc cc with stick,tig-lift start and hf start. Adding additional aluminum weld filler rods will cause the backside of your weld puddle to cool down, which produces the stacked-dimes look in a completed weld. “Cleanliness is next to godliness”- Cleaning your weld surface and keeping everything you do as clean as possible when TIG welding makes a world of difference. TIG welding can be used to produce high-quality, clean welds on most materials, including steel, stainless steel, chromoly, aluminum, nickel alloys, magnesium, copper, brass, bronze, and gold. Takes a bit longer for it to ball up on normally used 6.5-7.". on continuous, set low on the dial, try a few things to appease me and maybe discover a few things in the process.

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