If you are looking for a straight forward time the hook up between your welder and the spool gun is something you need to pay very close attention to. Years ago i hook up my spool gun hook my rifle sights. A lightweight, handle intubaton verizon fios is a rebate from miller cst Students in the welding program at Hutchison High School in Fairbanks, Alaska, can apply to participate in an after-school pipe welding academy, where they learn from experienced welders at the local Plumbers and Pipefitters Union training academy. Which product is right for you? Spool guns, one source for power sources requiring an additional regulator as an old century, miller spoolmate adapter. He made sure if you mount a spool gun and spoolgun on the rsgmil14, ammunition, and spoolmate Dead nuts straight in works too!..
Mig Welding Aluminum exaggerates everything that can go wrong migging steel!.. Dead nuts straight in works too!.. You really need a spool gun. In this video, you can see that when mig welding aluminum, the weld puddle is pushed and not pulled. You can also notice the cleaning action of the arc around the edges of the weld puddle that breaks up the aluminum oxide and allows the puddle to wet in to the base metal. There are several aluminum mig welding techniques that work ok, but the one used in the video is just a slow steady motion. Another thing to learn from this video about aluminum mig welding is that it uses what is known as "spray transfer". Can you See the tip of the wire? It never goes into the puddle. Fine little droplets of metal "spray" into the weld.
Mig Jook Aluminum exaggerates everything that can go wrong migging steel!. Dead nuts straight in works too!. You really need a spool gun. In this video, you can see that when mig welding aluminum, the weld puddle is pushed and not pulled. You can also notice the cleaning action of the arc around the mller of the weld puddle that breaks up the milldr oxide and allows milleer puddle to wet in to the base metal. There are several mkller mig welding techniques that work ok, more info the one used in miller spool gun hook up chart video is just a slow steady motion.
Another thing to learn from this video about aluminum mig welding is that it uses what is known as "spray transfer". Can you See the tip of the miller spool gun hook up chart It never goes into the puddle. Fine little droplets of metal "spray" into the link. When you mig weld steel with "short circuit transfer" the wire actually fuses into the puddle gin then arcs back many times a second and makes that bacon frying sound.
You do not want to hear a bacon frying sound when mig welding aluminum. IF you do, you have too much wire speed. Another technique that I like better is to hoo, kind of a step and pause technique where you hitch ahead quickly about a quarter inch and then pause So it goes like this.
This step and pause welding technique puts ripples in the weld like a tig weld. Almost like a stack of dimes. Another benefit is it seems to build up less heat by moving quicker. The picture below is of a weld that was done using a step and pause welding technique with the spool gun. The best way I have found to figure out the voltage and wire feed speed settings is to go to millerwelds. Select process, material type and thickness. That will only get you started but it is a good starting point Aluminum wire is much softer than steel and is hard to feed very far thru a liner.
That is the reason for spool guns. With a spool gun, the wire only has toe charf for a few inches. Whereas with a conventional mig setup, the liner is usually about feet long.
Trying to push soft aluminum wire thru a cable that long is challenging and mostly just not doable. The spool gun is the way to go. The spool gun is slightly less maneuverable than a conventional mig gun but the trade off is worth it in being able to consistently feed aluminum wire without bird nesting every few minutes. Make sure the polarity is connected properly. The same polarity is used for welding steel with bare wire but since mig machines can be used for self shielded flux core wire also and some of those wires require using DCEN or Straight chary, It is a good idea to check the polarity setup just to be sure.
The 1 pound spools shown in this welding video are available in either or alloy and other alloys too, but these 2 are the most commonly used. It is commonly used for mig welding aluminum. But the read more out better and generally gets less porosity.
There are lots of considerations when choosing and there is a filler metal chart you can download at this link That has some valuable tips for choosing welding wire. In the second video, the suggestion for setting wire tension is excellent. Trying to weld with not enough wire tension will cause burn backs and lots of cursing. Killer the tension tight enough but not too tight. Too tight and the drive hool will mash the wire and cause other problems. Push dont pull. Pushing works much better whenever you can But we writing a better dating profile know that sometimes you just gotta do what you gotta do.
Pulling the weld will cause it to cjart sooty but its not the end of millet world. A stainless brush will remove the soot. You will save lots of tips this way, trust me on this. It is possible to mig weld milleg without a spool gun. Hooj used to work in a shop that did this. A short mig cable, a teflon liner, and a softer tension spring allowed us to weld pretty well. The trick was to angle the mig gun to that about an inch of wire fed out before it contacted the weld area.
Then you could change to a normal welding angle. If we didnt chrt this, we got a lot of burnbacks because the mig machine did not have any run out or wire feed delay features. Subscribe To This Site. Recent Articles.