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  1. #1
    Join Date
    Nov 2011
    Posts
    13

    Default My first aluminum project a gold dredge.

    I've watched a lot of videos (welding tips and tricks) and read a few forums, as well as working around some aluminum welders for a couple weeks last year on a similar project that I managed, but as far as welding aluminum myself I have about 10 min on a mig gun my boss let me try last year after he dialed it all in. I figure it's time for me to learn, and what better way than just jumping right in. I've always been good with my hands in fabricating, but I didn't know quite what I was getting into until now. My largest learning experience so far without any schooling is finding out the hard way that flash burns are not just for your eyes, but it's burns your skin too. I welded all day without gloves in a short sleeve shirt and man was that stupid. Two layers of skin are peeled now and it seems to be healing so I live and learn. Here are a few pictures of the progress over the last couple weeks. I'll post more as I have time.

  2. #2
    Join Date
    Jul 2011
    Location
    Huntington, NY
    Posts
    118

    Default

    That's your first Aluminum project, ever?

    Man you got a big set.

    I made a 4" box out of .060 scraps for mine.

  3. #3
    Join Date
    Nov 2011
    Posts
    13

    Default

    After diving 100 hours below 7 feet of ice in 29 degree water with topside temps being as low as negative 36 and my regulator freezing 10x before building a hot water shroud; I was told the same thing.

    I did not build the boat in the first post. I'm just modifying the platform into an ocean dredge, but for a first project it was very daunting. I've put down over 50lbs of 3/64 5356 and I'm really starting to get the hang of it and my welds are looking a lot better. I especially like weaving verticle 90 degree joints.

    Attached is a picture of the project I managed/fabricated last year. We built that dredge in 15 days starting with only the pontoons. We had 3 welders working 12 hours a day to accomplish our deadline. The boat is 14'x40'. I learned a lot from the guys that were welding for me.
    Attached Images Attached Images

  4. #4
    Join Date
    Nov 2011
    Posts
    13

    Default

    The sluice box is finished. It pivots up on some 304 stainless I welded with some 1/8" 308 rod recomended by the welding shop. The 308 gets super hot and you have to keep moving or it will blow through pretty easy. It sure looks nice when you get a good bead. The tailing end of the sluice raises up to gain access to the underside trays with a simple hand winch and some super strong rope. The little blue rope is rated at 3800 lbs! Last couple days we have been welding up the hand rails. Using 5356 .035 wire since the 3/64 just blows right through 1/8" wall pipe. Welding in wind is really frustrating. Boosting the argon flow helps a little.

  5. #5
    Join Date
    Oct 2007
    Location
    Edmonton,Alberta.
    Posts
    632

    Default

    Quote Originally Posted by Kevin Briggs View Post
    The sluice box is finished. It pivots up on some 304 stainless I welded with some 1/8" 308 rod recomended by the welding shop. The 308 gets super hot and you have to keep moving or it will blow through pretty easy. It sure looks nice when you get a good bead. The tailing end of the sluice raises up to gain access to the underside trays with a simple hand winch and some super strong rope. The little blue rope is rated at 3800 lbs! Last couple days we have been welding up the hand rails. Using 5356 .035 wire since the 3/64 just blows right through 1/8" wall pipe. Welding in wind is really frustrating. Boosting the argon flow helps a little.
    2nd pic of you smiling, you oughta be smiling kevin,that's some fine work you've done there! Did you keep the drawings around?

  6. #6
    Join Date
    Nov 2011
    Posts
    13

    Default

    No drawings this time. It's all in my head, and we modify and tweak as we go. I also have some pictures I look at for reference and my buddie and I talk each phase through before we start each section. The basic premise is take something that works and try to improve on it a little. We finished welding the supports for the motor and pump. Using a 140hp Isuzu Diesel and a 8x6 berkeley pump. Gonna try to get the motor mounted tomorrow.

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