We weld aluminum without argon

We weld aluminum without argon

Hello friends! I will show you how to weld aluminum without argon, using a regular inverter. The entire process will be completely identical to that of electric arc welding of steel, with the exception of one small change. Using this method, you can easily repair aluminum parts or components at home, without expensive equipment for argon welding.

Will need

With the welding machine, I think everything is clear, but I need to explain about the electrode. It turns out that not so long ago, specialized electrodes for welding aluminum using conventional welding without an argon environment appeared on sale.

Brands may vary, so ask in stores. In any case, they can be purchased online without any problems.

We weld aluminum without argon

They have the same structure as an electrode for steel: a core with a thick coating. Everything is the same here, only the electrode has a different color palette: the core is shiny, as it consists mainly of aluminum, the coating is white.

We weld aluminum without argon
We weld aluminum without argon

Such electrodes are intended not only for aluminum, but also for its alloys: silumin, duralumin.Therefore, you can cook them without difficulty.

What do you need to know to make a quality seam?

Although the method is almost no different from conventional arc welding, you need to consider the following:

  • Welding current should be about 70-100 A
  • Welding is carried out with a short arc.
  • The electrode angle when welding should be 90 degrees.
  • The electrode burns out three times faster than with conventional steel welding.

Cooking aluminum is much more difficult, so if you have never done this before, I advise you to definitely practice, which is what I will do.

We weld aluminum with a conventional inverter without argon

My first experience welding this metal in an argon-free environment. I will weld thick plates. We secure the parts with clamps. We connect the negative to the bottom plate. Plus to the electrode.

We weld aluminum without argon

Initially, I recommend setting the current to 100 A and trying it.

We weld aluminum without argon

We cook everything on a short arc, since due to the rapid melting of the electrode it is very difficult to catch, especially if you are not used to it.

We weld aluminum without argon

Once you get used to it, you can already hold the arc stably.

We weld aluminum without argon

As after regular welding, we beat off the scale with a hammer.

We weld aluminum without argon

And clean it with a brush.

We weld aluminum without argon

Don't judge strictly, for the first training time, I think this is a good result.

We weld aluminum without argon

Especially considering how labor-intensive and unusual this is after ordinary steel welding.

We weld aluminum without argon

Recommendations for quality welding

  • Brush the weld area with a metal brush to remove oxide from the surface.
  • If possible, heat the parts with a gas burner to 150-200 degrees Celsius, this will simplify the task of obtaining a high-quality seam.
  • When welding, move the electrode faster, as it burns out about 3 times faster.

Summarizing

With this method you can:
  • - cook sheet aluminum;
  • - aluminum profile;
  • - repair engine boats or any blocks made of duralumin or silumin;
  • - any welding work on barrels or tanks;
  • - weld conductive busbars;
  • - and much more.

The strength of the seam is no worse than that of argon welding.

Of course, it’s a bit of a labor-intensive process, but you just have to get used to it and everything will go like clockwork. Among the shortcomings, I would like to note the slight high cost of electrodes compared to conventional ones. But when compared with argon welding, a centimeter of seam is much cheaper, so the method still wins.

Watch the video

Be sure to watch the video to see how difficult it is to do this the first time.

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Comments (14)
  1. Guest Vladimir
    #1 Guest Vladimir Guests 22 June 2018 22:50
    4
    To weld aluminum you need a change. Apparently the seam is nonsense. oh these bourgeois)
    1. Lyokha
      #2 Lyokha Guests June 26, 2018 06:30
      5
      lume is brewed constant with reverse polarity
  2. I Okulov
    #3 I Okulov Guests 24 June 2018 14:05
    1
    Best Respect!!!
  3. Guest Sergey
    #4 Guest Sergey Guests 24 June 2018 22:35
    1
    Seam is a rare...
  4. Guest Igor
    #5 Guest Igor Guests June 25, 2018 09:35
    2
    How he trumps!
    Have you tried calcining the electrodes before welding?
  5. hip-hop Pasadena
    #6 hip-hop Pasadena Guests 25 June 2018 21:33
    2
    How will it work for the first time!? Yes, only if you saw welding in your eyes for the first time)))) There is no seam there at all, and learn how to light an arc (((
  6. Guest Alexey
    #7 Guest Alexey Guests 2 July 2018 15:50
    1
    Well, why did they attack the guy? YES Lepilovo satisfied But I charge twice as much for the rework.
  7. Guest Victor
    #8 Guest Victor Guests July 21, 2018 09:08
    1
    Why so much pain? Ali Express has low-temperature aluminum electrodes, soldered with a simple torch from a spray can. By the way, they are not bad at soldering.
  8. Guest Yuri
    #9 Guest Yuri Guests 23 August 2018 17:11
    0
    It’s better to solder with chamfering and in two layers than such welding.
  9. Guest Igor
    #10 Guest Igor Guests 10 September 2018 20:27
    0
    You should send an application for the Nobel Prize. The reward is waiting for you.
    The whole world welds aluminum in an argon environment, but here a craftsman welds it just like that. Unique!
    In the USSR you would have been immediately given the Lenin Prize... or for some part of the body. The face, most likely.
  10. Popkov Roman Viktorovich
    #11 Popkov Roman Viktorovich Guests 25 September 2018 18:45
    5
    electrodes for aluminum were already in the USSR, for example "Komsomolets"
    1. Guest Yura
      #12 Guest Yura Guests July 23, 2019 03:24
      1
      Komsomol for copper was