Added: 2 years ago
From: angejel
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  • Too bad there is not a 10 or 20% reverse pulse and and then back to DCEN.

  • good video!!!!

  • Many thanks for the video. I have an aluminium exhaust which needs fixing as it's developed holes on the end. It's 2-3 mm thick and I want to weld a "sleeve around the circumference. I have a DC scratch start inverter at my disposal, if I've got this right I should be using helium gas with a '4043 (arc) rod?? Any tips on the amperage settings? (new to all this) Many thanks!

  • To TIG welder Aluminum on DC set up the machine just as you would for welding steel... Use straight Helium (you can mix a little Argon to help clean) and use normal 4043 rod (5356 rod will not work). Placement of the rod is key with DC Straight. It will ball up really fast if placed poorly.

  • @RedIron881 To TIG welding aluminum on DC with normal aluminum rod 4043 or 5356, even to use helium is needed to move to the DCEP, or reverse polarity.

    DCEP welding burns out the electrode very quickly, since the heat generated by the air's electrical resistance is concentrated on the tungsten rather than the base metal. DCEP welding is usually done at low amperage on very thin metal to reduce heat, and uses a thick electrode that is more resistant to heating.

  • Many thanks for reminding us the old technique of welding aluminum with a DC- TIG. Using a ESAB OK 96.40 SMAW electrode (it's an electrode for arc welding coated with a fluoride similar to the flux used for torch welding aluminum) as filler you have the aluminum cleaned by the flux...It's strong (alloy similar to 4043). It needs practice as the DC- is very hot...I see you've used 82 amps same as arc with the same rod size. I'll train again on DC-. Thanks again.

  • @ilanvoyager Can you explain any advantage in TIG over SMAW if I have to use the same coated stick? I mean: I have the slag and I also have to use both hands and use gas, I really can't see the advantages (I'm really new to TIG, so I easily see the added difficulties). Thank you

  • @marcheseDS Essentially control and focus of the heat. Try to SMAW weld aluminum and you 'll see that's rather messy and it's very difficult to control the process. Generally, unless being very well trained the result is awful. Simply try it and you'll understand.

    Using a TIG you can control the amount of heat applied at a exact place and you're not with a stick burning at a very fast pace. Often the result are better than SMAW. It's for a occasional reparation. Works also on "dirty" alum.

  • @MrAluminox "you 'll see that's rather messy and it's very difficult to control the process" YES, definitely! I've tried once and is very difficult, burns too fast to really know what you're doing. And if it is occasional the added expense and hassle is probably worth to get a good result, thank you for the answer.

  • @marcheseDS you're welcome. It's truly a good "trick" as it it can be done with a cheap DC TIG.

  • @marcheseDS Yes, this is the biggest advantage of this welding type .No and understand the views of other colleagues who have tried to weld this way, the process is quite difficult to control, but mastering it is often the results are better than SMAW.

  • @angejel Thanks

  • WOW not bad but how did it hold up under stress in use?

  • @UpcomingJedi There are rubber bushings to absorb vibrations during operation of the motor

  • thank for this, it is very useful. But i use scratch start welder.

  • thank for this, it is very useful.

  • @dvd0505 Thanks for watch my video.

  • @hybelkan1nen I see that as you and so many other colleagues are interested in this method of welding in the near future I will prepare a video which will explain how to do it.

  • Hi!  I use Stick Electrodes OK 96.40.

  • we live in 2010 not in time of mozes come .on for you one safety

  • whats the point of dc with aluminum

  • AC / DC inverter machines are quite expensive! In this video I want to show that you have DC inverter can be welded aluminum parts with this method and is applicable mainly for domestic use and not so much professional work, although it can be done much good results in its use.

    Sorry for my bad English, I hope you understand me!

  • @angejel Many thanks for this video i was worried that i not gonna be able to weld alu because AC/DC maschines are too expensive but now i see it is possible and no need AC. Greetings from Poland

  • Kak dela?

  • What the hell is "Rights Polarity"?

    DCEP or DCEP?

  • @valveman12 DCEN, which is the 'right' polarity for TIG.

  • DC neg. electrode

  • Hello, the aluminium 6061 or AG3 in 1,5 mm can be weld with inverter in dc with argon?

    Merci

  • Rights polarity

  • Mmmm zinc alloy filler, pity it has no strength and will snap right of if you give the lugs a tap with a hammer.

  • is the welder machine with pulse?what type of rod you are using?

    thanks

  • To the machine with pulse! But for welding aluminum is not used pulse.

    of rod are using aluminum electrodes OK 96.40

  • hi, what rod´s are you using to do that ???

    nice and professional work.....

  • did you use helium?

  • No, only with Ar

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