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Thread: Two new lowers had holes drilled after anodization (pic)

  1. #11
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    I wouldn't even give it a second thought if it was mine. You'll never even notice it when the detent is installed.

  2. #12
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    Quote Originally Posted by Todd.K View Post
    Blind holes can trap a bubble during anodizing.

    If it were my lower I wouldn't worry about it.
    Hint, hint.

    By no means am I disagreeing. I wouldn't worry about it either.

  3. #13
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    The anodizing itself is colorless. The black is just part of the dye
    INSIDE PLAN OF BOX
    1. ROAD-RUNNER LIFTS GLASS OF WATER- PULLING UP MATCH
    2. MATCH SCRATCHES ON MATCH-BOX
    3. MATCH LIGHTS FUSE TO TNT
    4. BOOM!
    5. HA-HA!!

    -WILE E. COYOTE, AUTHOR OF "EVERYTHING I NEEDED TO KNOW IN LIFE, I LEARNED FROM GOLDBERG & MURPHY"

    http://i115.photobucket.com/albums/n289/SgtSongDog/AR%20Carbine/DSC_0114.jpg
    I am American

  4. #14
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    I bought a Steyr AUG CQB which has a few holes drilled and tapped after anodizing. It ain't ideal but I did it all the time when I built machines for fabricating semiconductors. These machines cost huge money, millions of $s and were vital parts of production lines that cost hundreds of millions of $s. The customers were very very picky and demanding and knowledgeable. They didn't give it a second thought. I would't give it a second thought.

  5. #15
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    Quote Originally Posted by joe_sun View Post
    I don't care about the scratches, what I might care about is the lack of hardening on a part that is subject to the hammering of an H buffer against it.
    Anodizing has nothing to do with hardening. It is a protective coating to prevent corrosion. Heat treating is how aluminum gets to its proper hardness.

  6. #16
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    Anodizing does have something to do with hardening. Aluminum exposed to oxygen forms aluminum oxide, a very hard substance, on it's surface. Anodizing does the same thing but deeper and more evenly than the natural process.

    You are correct that anodizing does does heat treat aluminum
    Last edited by MistWolf; 03-17-13 at 00:52.
    INSIDE PLAN OF BOX
    1. ROAD-RUNNER LIFTS GLASS OF WATER- PULLING UP MATCH
    2. MATCH SCRATCHES ON MATCH-BOX
    3. MATCH LIGHTS FUSE TO TNT
    4. BOOM!
    5. HA-HA!!

    -WILE E. COYOTE, AUTHOR OF "EVERYTHING I NEEDED TO KNOW IN LIFE, I LEARNED FROM GOLDBERG & MURPHY"

    http://i115.photobucket.com/albums/n289/SgtSongDog/AR%20Carbine/DSC_0114.jpg
    I am American

  7. #17
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    Quote Originally Posted by me_john85 View Post
    Anodizing has nothing to do with hardening. It is a protective coating to prevent corrosion. Heat treating is how aluminum gets to its proper hardness.
    Type III hardcoat provides a hard layer on top of the aluminum to protect it.
    Last edited by BSmith; 03-17-13 at 19:28.

  8. #18
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    The anodizing itself is part of the aluminum. It's a conversion coating
    INSIDE PLAN OF BOX
    1. ROAD-RUNNER LIFTS GLASS OF WATER- PULLING UP MATCH
    2. MATCH SCRATCHES ON MATCH-BOX
    3. MATCH LIGHTS FUSE TO TNT
    4. BOOM!
    5. HA-HA!!

    -WILE E. COYOTE, AUTHOR OF "EVERYTHING I NEEDED TO KNOW IN LIFE, I LEARNED FROM GOLDBERG & MURPHY"

    http://i115.photobucket.com/albums/n289/SgtSongDog/AR%20Carbine/DSC_0114.jpg
    I am American

  9. #19
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    Quote Originally Posted by MistWolf View Post
    The anodizing itself is part of the aluminum. It's a conversion coating
    Didn't even see your reply when I replied. Saw the one above yours. Yours explains it much better and more correctly.

  10. #20
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    This is ****ing retarded. I have a lower that has exactly this same thing, I'd already forgotten about it until I read this insanity.
    "You people have too much time on your hands." - scottryan

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