What’s your favorite wire?

  1. TechnicAl

    TechnicAl Member

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    7,959
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    Dont apologise....its a minefield.........I was part of it for 40 years
     
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  2. TechnicAl

    TechnicAl Member

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    7,959
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    317 Stainless?....thats quite specialised........chemical tankers?
     
  3. Hood

    Hood If it walks like a duck....

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    12,052
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    Carnoustie, Scotland
    Yes, obviously I have never done X Rays however I have done quite a few chops/etches and don't see much in the way of porosity. Having said that I did get some in the tests the last day with the Cebora, not sure what wire it was as it didn't have a name on it but the supplier said he reckoned it was SWP. Can't say for sure whether it was the wire that was the problem though as I was using a burnt shroud and possibly had too much flow for the small torch, hopefully I can do some more tests next week to see if I can find the problem.
     
  4. Hood

    Hood If it walks like a duck....

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    12,052
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    Might be ;)
     
  5. Hood

    Hood If it walks like a duck....

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    12,052
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    Carnoustie, Scotland
    This was the one the last day, was happy enough with the profile and penetration (the wee Cebora is impressive ) but mightily pee'd off when I saw the bubbles :(
    As said I have not found the issue yet for sure but the wire is the prime suspect.
    ScreenHunter_1608 May. 27 13.00.jpg
     
  6. TechnicAl

    TechnicAl Member

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    7,959
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    You always get porosity with Aluminium welds....its the quantity that varies
     
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  7. TechnicAl

    TechnicAl Member

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    7,959
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    it always is
     
  8. Hood

    Hood If it walks like a duck....

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    12,052
    Location:
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    It is very rare that I see porosity in an etch, I am sure it will be there but it is not really visible to the naked eye or at least not to me. I did once get plagued with a porosity problem that was driving me daft but I eventually traced it to a tiny pin hole in the gas hose.
     
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  9. TechnicAl

    TechnicAl Member

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    7,959
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    Aluminium always has porosity..........thats a fact
     
  10. Hood

    Hood If it walks like a duck....

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    Location:
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    What are you talking though? Big bubbles as above or tiny ones that can hardly be seen?
    I have on occasion seen some close to the surface but the one above dismayed me because they were deep down.
     
  11. TechnicAl

    TechnicAl Member

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    7,959
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    both or either............Aluminium attracts moisture to its surface.....so unless its perfectly clean there will be porosity........and you cant really clean it to that level....except in certain circumstances
     
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  12. TechnicAl

    TechnicAl Member

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    7,959
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    If you dont believe me....google it.....I havent so I dont know what you will find
     
  13. Hood

    Hood If it walks like a duck....

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    12,052
    Location:
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    Oh I believe you as I know it to be true as well but when I see ones like I posted above I am not happy, normally the etches are nice with very tiny bubbles if at all.
     
  14. Hood

    Hood If it walks like a duck....

    Messages:
    12,052
    Location:
    Carnoustie, Scotland
    This is what I see normally.
    ScreenHunter_1621 Jun. 03 01.01.jpg ScreenHunter_1622 Jun. 03 01.01.jpg ScreenHunter_1623 Jun. 03 01.02.jpg

    On occasion I do see some bubbles such as here which was done with a spool gun with Super6 wire on the Cebora and I was having gas coverage issues as can be seen in the last pic.

    ScreenHunter_1624 Jun. 03 01.03.jpg

    ScreenHunter_1625 Jun. 03 01.07.jpg
     
  15. TechnicAl

    TechnicAl Member

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    well done....they look good
     
  16. Hood

    Hood If it walks like a duck....

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    You seem to be getting me wrong, I am not disagreeing with you as I know it is true, I am simply trying to get a handle on what to normally expect.
     
  17. TechnicAl

    TechnicAl Member

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    7,959
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    and thats what Im trying to tell you......having seen hundreds of graphs
     
  18. Jetemp New Member

    Messages:
    9
    Location:
    North yorkshire
    So to furthe my question a little could someone explain to me what the wire coding means so what does er70s-6 mean?

    What wire should I be looking at for fabrication and general repairs?

    James
     
  19. Hood

    Hood If it walks like a duck....

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    12,052
    Location:
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  20. henry Kadzielski Member

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    886
    Location:
    Australia Wollongong
    Good morning Hood.
    I have my sample of welds put down on a flat plate of alli with Safra 5356 1.2mm, and I agree no bubbles at all in all the welds put down. However when I did my alli weld test fillet and overhead butt weld, in the fillet there was porosity. Had the results emailed back to me from the testing agent which stated it was a class 2 weld and that class one is not obtainable with mig process due to the porosity. They stated that they look at the size and location of the porosity to determine the weld quality.:thumbup: They gave me :thumbup::thumbup: no problems
     
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