[Jewelry making - Article 01719] - Re: [Orchid] To quench or not to quench, that is the question

[John Donivan]

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>     I hope that trying to relate this process to the color of the
>     cherry, I did not cause anybody going to the supermarket and
>     seeing yellow cherry on display 

    Leonid (and all), I would let this all pass, except that there is a
    pretty good chance of gross misunderstanding in it. The colors of
    hot metals are ALREADY DEFINED. Cherry red is defined as that color
    that's about 1500F-1550F. The temperature at which you can get a
    pretty good hardness on tool steel by quenching it from there. This
    comes from antiquity, and really isn't optional. It doesn't matter
    what color anyone's cherrys are. The danger is that when somebody
    says to heat to cherry red for annealing, and does so, knowing that
    cherry red is around 1500F. It is the last red before orange, not
    the first red. I know and see that Leonid understands the process
    really well, it's just a matter of semantics. The problem being that
    many people are taught the colors of heat, me included, and we can't
    just make up language as we go along - that's what language is - a
    common understanding. 

http://www.donivanandmaggiora.com
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