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TIG welding class continues... with aluminum

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  • TIG welding class continues... with aluminum

    The TIG welding class is still going strong, and I'm working with aluminum. I sort of skipped over stainless steel, since I rarely use it for anything I make.

    Here's some pics of a VERY small part of the practice work I've been doing.

    First, the obligatory rod holder. I put off making it until I could make it from aluminum. I wanted it to be different from everyone else's.


    Practicing mitered 90* joints on 3" pipe. This is preparing me for welding up a set of soccer goals for the local YMCA.


    And joining the 1 1/2" pipe to the 3" pipe, which is some more practice for the goals.


    I've already welded up a set of practice goals from the 1 1/2" pipe. My instructor takes on some mighty ambitious projects for his students to work on.

    Roger

    [This message has been edited by winchman (edited 02-23-2006).]
    Any products mentioned in my posts have been endorsed by their manufacturer.

  • #2
    Very nice! are you a beginner? doesn't look like it from here, "That's a compliment". Well done laddie Alistair
    Please excuse my typing as I have a form of parkinsons disease

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    • #3
      Thanks. I've been working really hard in the class, and I'm certainly getting my money's worth. It's been a lot of fun, too.

      I did a fair amount of O/A and some stick welding on my own years ago, but this class (which started in January) is my first experience with TIG.

      I did over a dozen miter joints on the 3" pipe before I did those in the photo. Some of them were pretty ugly in places.

      Two things I've learned about aluminum:
      It takes a LOT of heat.
      If it looks the least bit like it's going bad, STOP, grind it out, clean it up, then continue.

      Roger

      Any products mentioned in my posts have been endorsed by their manufacturer.

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      • #4
        Nice beads winch!

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        • #5
          <font face="Verdana, Arial" size="2">Originally posted by winchman:

          Two things I've learned about aluminum:
          It takes a LOT of heat.
          If it looks the least bit like it's going bad, STOP, grind it out, clean it up, then continue.

          Roger

          </font>
          Yep, much harder than the steel. When I first started I had some contamination issues that were just painful to get over. In my case, two things really helped. First, surprisingly, I needed to take much more care with grounding. In the school environment this had not been emphasized much. It helped the steel too.

          Second, really had to get a healthy and happy puddle before moving out at all. Give the arc and the gas a chance to get real stable.

          Best,

          BW
          ---------------------------------------------------

          http://www.cnccookbook.com/index.htm
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          • #6
            looks good!

            Q. on say the shot where the 3 tubes come into the larger one, how is everything held in alignment? I often use those magnetic triangles on steel or clamps on square tubing and tack weld first, but neither of those would work here
            .

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            • #7
              Since it was just a practice weld, the alignment wasn't very critical. I used a center punch to upset the edge of the hole in three places just enough to hold the tube in place while I got it tacked.

              We'll have a jig to hold the pieces in alignment when I'm welding the goals together. On each weld, I try to start a little further down on the vertical part of the curve, so I won't have to reposition things so often.

              Roger

              Any products mentioned in my posts have been endorsed by their manufacturer.

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