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Thread: Cold Anodizing?

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    Happy Camper hcpookie's Avatar
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    Default Cold Anodizing?

    I could have sworn I've read that you can buy a dip solution that will anodize by just letting the metal sit, and does not use electricity.

    I have need for a very small amount of anodizing and don't want to spend the money on acid and a battery charger to anodize such a little amount. Specifically a fake PBS silencer and a few other small parts.

    I plan to duracoat but would like to anodize it first... help?
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    Always sore, always tired Bradrock's Avatar
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    I think Panaceabeachbum might know the answer on this. Hasen't posted much here recently. Might have to PM?
    " Save a tree...........Eat A Beaver!"

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    aka: SDK1968 dutigaf's Avatar
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    black oxide i think is what your looking for.......... Pirate uses it alot.
    say what you mean & mean what you say


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    GuncoHolic kernelkrink's Avatar
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    Anodizing is a process where the normal aluminum oxide coating on AL is thickened by usuing electricity, AFAIK true anodizing requires electrical power.

    ALODINE, OTOH, is a conversion process used without electricity, common on aircraft parts and very similar to parkerizing. Alodine is a copyrighted name from one manufacturer, IRIDITE is pretty much the same thing in a different brand. Most will be a light yellow or green color as the mil spec requires a coloration to let an inspector know a surface is coated.

    http://www.aircraftspruce.com/menus/...psupplies.html


    http://www.pegasusautoracing.com/pro...asp?RecId=5591

    Black oxide will dissolve aluminum.

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    Gunco Rookie old man's Avatar
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    there is cold anodizing it is considered a type 3 hard anodize usually done under 36 degrees soft coat type 2 anodize is done at 68 to 72 degrees. I work in an anodize shop this process is almost impossible to do in you gargage and keep the chemicals consistant to get the quality you would want. The shop I work at is ISO, NADCAP, Boeing, and Lockhead certified. If you want to ship parts to me I would consider trading work for ? I do believe the process you are thinking about is Alodine, Chemfilm, or Chromate conversion which does not use electricity all the same process different brand names
    Oldman

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    Happy Camper hcpookie's Avatar
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    Thanks, Kernel! That looks like the ticket. Here's my "Before" pic:

    Gunco Member #10

    http://pookieweb.net


    The "original" Boltcutter Rivet Squeezers:
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    Project Pink - the Pink and Blue AK-74:
    http://pookieweb.net/pink/pink.htm

  7. #7
    Indian Admin Winn R's Avatar
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    Jerry -- you've had that little lathe whirring!!!
    There is no nonsense so errant that it cannot be made the creed of the vast majority by adequate governmental action. -- Bertrand Russell


    "Never attribute to malice that which can be adequately explained by stupidity." Robert J. Hanlon

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    aka: SDK1968 dutigaf's Avatar
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    Quote Originally Posted by kernelkrink
    .
    Black oxide will dissolve aluminum.
    sorry!! didnt catch that he was doing alum.... my fault.
    say what you mean & mean what you say


  9. #9
    Happy Camper hcpookie's Avatar
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    Quote Originally Posted by Winn R
    Jerry -- you've had that little lathe whirring!!!
    You have no idea! That same stupid transmission gear that I keep breaking in my mill is in use on the lathe and I broke it! I am going to make a necklace out of all of these broken gears I'm collecting!


    The thing started as a 1.5" wide piece of 6061 aluminum and I was surprised at how easy it was to cut up with the lathe. I bought some new cutters and that is probably why.

    I couldn't put the tailstock on the bed when the aluminum was mounted up, so I had to use a hand drill and a long bit to drill out the center. It is therefore off-center on the muzzle end about 1/8" or so. The set screw I had to install for the blind pin compensated for it by "wedging" the entire thing against the AKSU sight/gas block, so it worked out just right.

    I also made a knurling tool from some plans I found online, and I doubt I'll use it any more.

    I am making the PBS-style "muzzle brake" on the end just like I saw on someone's gallery pic and then I'm going to paint it.

    Here it is after I blind pinned it - ready for the rear trunion to be mounted and then paint time!

    http://pookieweb.dyndns.org:61129/ak...s/000_0225.JPG
    Gunco Member #10

    http://pookieweb.net


    The "original" Boltcutter Rivet Squeezers:
    http://pookieweb.net/AK/rivet/boltcutters/boltcutter.htm


    Project Pink - the Pink and Blue AK-74:
    http://pookieweb.net/pink/pink.htm

  10. #10
    Indian Admin Winn R's Avatar
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    Quote Originally Posted by hcpookie
    You have no idea! That same stupid transmission gear that I keep breaking in my mill is in use on the lathe and I broke it! I am going to make a necklace out of all of these broken gears I'm collecting!


    The thing started as a 1.5" wide piece of 6061 aluminum and I was surprised at how easy it was to cut up with the lathe. I bought some new cutters and that is probably why.
    I know, My old Logan is down now because I decided to replace a slightly out of round pulley plus get some extra speed -- and of course I can't find the right size belt now! And I'm buying the cheap carbide cutters in packages of 30 -- less than a buck each.

    Quote Originally Posted by hcpookie
    I couldn't put the tailstock on the bed when the aluminum was mounted up, so I had to use a hand drill and a long bit to drill out the center. It is therefore off-center on the muzzle end about 1/8" or so. The set screw I had to install for the blind pin compensated for it by "wedging" the entire thing against the AKSU sight/gas block, so it worked out just right.
    I've had this private bet with myself that you'd soon part with the money to pick up an older 24" plus bed.

    Quote Originally Posted by hcpookie
    I also made a knurling tool from some plans I found online, and I doubt I'll use it any more.
    But an excellent job -- those are as tricky as metric threads.

    Quote Originally Posted by hcpookie
    I am making the PBS-style "muzzle brake" on the end just like I saw on someone's gallery pic and then I'm going to paint it.

    Here it is after I blind pinned it - ready for the rear trunion to be mounted and then paint time!

    http://pookieweb.dyndns.org:61129/ak...s/000_0225.JPG
    Looks Great!
    There is no nonsense so errant that it cannot be made the creed of the vast majority by adequate governmental action. -- Bertrand Russell


    "Never attribute to malice that which can be adequately explained by stupidity." Robert J. Hanlon

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