[Jewelry making - Article 00505] - Re: [Orchid] Titanium ring removal

[Reactive Metals]

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    My, my, amazing stories you have to wonder where these ideas come
    from.  A sliver of metal I guess could do that.? Any metal could do
    that. Why just the mystical titanium. It is not invisible, even to
    x-ray. Now, remember this is the same stuff they are going to use to
    replace your hip, screw into your jaw for a dental implant, screw
    your skull fracture back together and pin that broken bone. The
    oxide, you know, that titanium white pigment you can buy, is in
    powdered instant drinks, makeup, sunscreen, toothpaste, ceramic
    glaze the list goes on and on. 

    Two caveats: Ok, so if you are grinding titanium or any other metal
    for that matter and you have smoke and sparks. DO NOT BREATH THE
    FUMES. That's the rule. Does anyone mask up every time they go to
    the grinder? Noooo... well, yes, maybe, not.. gee I never think of
    it. Yeah, so think about it. 

    Titanium will burn. Now, you probably won't ever light a piece of
    sheet metal on fire. It does not even melt until 3038=B0F(1668=B0C).
    The danger is with piles of very fine filings or turnings in a
    factory type setting. I have filed up a pile of dust and taken it
    outside and lite it up with a torch. Behold just like a sparkler. In
    fact titanium powders are used in fireworks. If a small fire starts:
    Do not put water on it. It could explode. Use a dry fire
    extinguisher or salt, or just let it burn out. 

    If you are going to turn it there are some guides about tools,
    cutting angles, speeds and lubricants. Check your references and
    know what you are doing or tool life will be short. Bill

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