Max aluminium and steel thickness for my mig

  1. robertlaurenson Member

    Messages:
    44
    Location:
    Shetland
    For ali i am using 1mm 5356
    And for steel 1mm steel wire
    And stainless either 0.8 or 1mm 316 grade
    Thanks a lot for this.
    Much appreciated
     
  2. Hood

    Hood If it walks like a duck....

    Messages:
    11,656
    Location:
    Carnoustie, Scotland
    Ok here is what it says, setting the jobs as per pic 1.2mm wire in both steel and stainless and gasses as described.

    ScreenHunter 61.jpg

    Job number 9 for steel.

    Current and voltage setting.

    ScreenHunter 62.jpg

    What it says for thickness.

    ScreenHunter 63.jpg


    316 stainless current set


    ScreenHunter 64.jpg

    What it says for thickness

    ScreenHunter 65.jpg
     
  3. Hood

    Hood If it walks like a duck....

    Messages:
    11,656
    Location:
    Carnoustie, Scotland
    Ah ok will go look for those wires.
     
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  4. Hood

    Hood If it walks like a duck....

    Messages:
    11,656
    Location:
    Carnoustie, Scotland
    Ok for the Alu with 1mm wire it will only let me go to 124Amps which is about the max I would have thought for that dia anyway.

    For 1mm steel with the above gas I get

    ScreenHunter 66.jpg

    ScreenHunter 67.jpg

    1mm 316

    ScreenHunter 68.jpg

    ScreenHunter 69.jpg
     
  5. robertlaurenson Member

    Messages:
    44
    Location:
    Shetland
    Thanks very much,
    So roughly in 1 pass the max on either steel or stainless will be 8mm ish and the ali will be 10mm.
    My machine with 1mm ali wire will let me go to full current so thats most probably why i can get 8mm with 170 or there abouts. I cut and etched a bit of the 8mm once i had welded it and the penetration was great. .
     
  6. robertlaurenson Member

    Messages:
    44
    Location:
    Shetland
    Seems from that this machine will do most of what i need and i will get another non synergic unit 350A single phase from phil to do the bigger steel stuff.
     
  7. Hood

    Hood If it walks like a duck....

    Messages:
    11,656
    Location:
    Carnoustie, Scotland
    Personally I would be using 1.2 wire for the Aluminium, going to high on the current with 1mm wire will likely be too much for it. Yes it will weld but the results won't be as good.

    I use 1.2mm 5356 or 5183 and can go way down to 1mm or so material and it welds nice at the thicker stuff too but it tops out at 8mm in the synergic line. I have custom jobs set up so I can basically go as thick as I want in the job but I do notice a difference over 8-10mm, using 1.6 wire lets me go to 20mm in the synergic lines but that will be 350 odd amps.
     
  8. robertlaurenson Member

    Messages:
    44
    Location:
    Shetland
    Good shout and i will order some 1.2mm also.
    Good to now have all this info.
    The only shame with my machine is it doesnt have the full synergic settings like yours do. Cant adjust it by metal thickness.
    But apart from that i am more than happy with it.
     
    Hood likes this.
  9. matt1978

    matt1978 www.lorch.eu

    Messages:
    3,742
    Location:
    UK, Cannock
    That’s because you have a steady hand and your stick out distance was maintained.

    If you want to play, get a welding value on some scrap that you like.

    Do a run with a normal stick out of about 20mm then look at the hold amps when you finish.

    don’t change anything then do another run with a really close stick out distance of 10mm <

    then do the same again with a much longer stick out of about 30mm

    you should see quite a variance at the measured currents even though your wire feed rate was the same on all three runs
     
    Hood likes this.
  10. Hood

    Hood If it walks like a duck....

    Messages:
    11,656
    Location:
    Carnoustie, Scotland

    That is what I was planning on doing except I will just video the readout and see how it varies as I lengthen/shorten the stickout :)
    All I need now is some peace and quiet from these bleeding fishermen so I can have a mess around :D
     
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  11. matt1978

    matt1978 www.lorch.eu

    Messages:
    3,742
    Location:
    UK, Cannock
    :clapping:
     
  12. Munkul

    Munkul Member

    Messages:
    2,410
    Cumbria, UK
    That's a low speed wire pulse, in effect though, all double pulses have to have this, because as Matt says, wire speed is amps, and double pulse needs a lower secondary average current.
     
  13. Hood

    Hood If it walks like a duck....

    Messages:
    11,656
    Location:
    Carnoustie, Scotland
    Yes or at least they should :)
     
  14. Hood

    Hood If it walks like a duck....

    Messages:
    11,656
    Location:
    Carnoustie, Scotland
    Just remembered today so did a quick vid.
    This is with the older Phoenix 330 as the newer 350 is in the car ready to take to a job, I would imagine it acts the same however.
    You should be able to hear me shout "lengthen" and "shorten" at several points along the weld.
    Current seems fairly steady throughout.

     
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  15. Munkul

    Munkul Member

    Messages:
    2,410
    Cumbria, UK
    So that's controlling the current average by changing the average voltage, it looks like :) I wonder if it would do the same in synergic CV mode, and if so, would it also do the same in manual CV mode?

    Are your torches just gas cooled, Hood?
     
  16. Hood

    Hood If it walks like a duck....

    Messages:
    11,656
    Location:
    Carnoustie, Scotland
    Not sure, the voltage doesn't seem to be moving around that much although both current and voltage do vary a bit but certainly not massive amounts.

    Yes just gas cooled torches. I do have a Binzel water cooled push-pull but have never used it.
     
    Munkul likes this.
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