Aluminium Welding??

Discussion in 'Tech/Mech General' started by dazzer, Feb 24, 2009.

  1. dazzer

    dazzer Read Only Funster

    Joined:
    Jul 30, 2007
    Messages:
    1,698
    Likes Received:
    99
    Location:
    In my house
    Can anyone tell me exactly what i need to weld 2mm thick aluminium box section together?? :Eeek:

    I have welded steel all my life (gas, mig, arc, spot etc etc etc) but never ali and wondered what kit is required and any other specialised items. :Wink:

    Thanks as always in advance :thumb:
     
  2. Geo

    Geo Trader - Funster

    Joined:
    Jul 29, 2007
    Messages:
    9,507
    Likes Received:
    5,557
    Location:
    Mansfield,Notts
    What you realy need is a Tig welder, however you can get away with a MIG ,a roll of aluminium wire and the tips to accommodate it and 5% argon gas, plus a few years experience:Eeek: it would be far cheaper to get a mobile welder in
    Geo
     
  3. olley

    olley Funster

    Joined:
    Jul 29, 2007
    Messages:
    3,705
    Likes Received:
    2,091
    Location:
    Ipswich
    Hi dazzer you can gas weld it with oxy/acet but 2mm is awfully thin, but its possible with practice. Never used TIG or MIG so can't comment.

    Olley
     
  4. madbluemad

    madbluemad

    Joined:
    Jan 26, 2008
    Messages:
    3,341
    Likes Received:
    243
    Location:
    spain
    Hi Dazzer
    Aluminium is one of the more difficult of materials to weld.

    Use an AC Welding Set: TIG. With a Zirconiated Tungsten Electrode.

    Use some 1.6mm Filler wire, NF:A81-331 A5 1050A, trade name: FP Soudage: FIAL2.

    Before welding swab the material with Acetone. You will need a Shield Gas: Argon 99.999% Pure at 18 LPM.

    Best of luck you will need it.

    Jim :Laughing::Smile:

    If you want to use a MIG Set then the polarity will be DC +VE.
     
    Last edited: Feb 24, 2009
  5. ruffingitsmoothly

    ruffingitsmoothly Read Only Funster

    Joined:
    Jan 2, 2008
    Messages:
    1,395
    Likes Received:
    69
    Location:
    West of Southampton edge
    I have welded aluminium with gas and a lot of flux but it is extremely difficult as you cannot see the 'weld pool' very easily and before you know it you have a big hole:Rofl1::Rofl1:

    Regards Pat
     
  6. Johns_Cross_Motorhomes

    Johns_Cross_Motorhomes Trader - Motorhome & Accessory Sales

    Joined:
    Jan 5, 2008
    Messages:
    9,246
    Likes Received:
    5,197
    Location:
    East Sussex 01-580-881288
    You offering Geo, get the pram out and get moblie:Rofl1::Rofl1::Rofl1:
     
  7. Geo

    Geo Trader - Funster

    Joined:
    Jul 29, 2007
    Messages:
    9,507
    Likes Received:
    5,557
    Location:
    Mansfield,Notts
    I would Peter but me wheels have fell off
    Dont know a good welder do you:Doh:
     
  8. Diabalo

    Diabalo Funster

    Joined:
    Oct 14, 2007
    Messages:
    1,966
    Likes Received:
    379
    Location:
    Rochester
    As an ex welder including a lot of Alluminium work my advice would be DON'T TRY IT unless you have had a lot of practice on non expensive scrap and you have got the hang of it.

    As others have said TIG would be the way to go for a neater finish.

    Again my advice would be do the fabrication work yourself then get a local firm to do the welding.

    Best of luck:thumb:
     
  9. tofo

    tofo Funster

    Joined:
    Oct 1, 2007
    Messages:
    6,586
    Likes Received:
    6,213
    Location:
    Kirby cross further from londin
    i tried making an ally frame
    for my gas box on my self build
    in the end lost my temper threw the dummy and the baby out the pram
    beat the devil out of the ally
    and then used angle iron instead
     
  10. pappajohn

    pappajohn Funster Life Member

    Joined:
    Aug 26, 2007
    Messages:
    29,447
    Likes Received:
    16,876
    Location:
    YO11 2BD
    no-one will beleive this but i'v welded 2mm aluminium sheet with a blowtorch, stainless steel brush, fluxed aluminium wire and a stainless steel scraper rod.

    very expensive but perfect for model aircraft engine mounts.
     
Loading...
Similar Threads
  1. Wildbill
    Replies:
    7
    Views:
    363

Share This Page