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Thread: Is there such a thing as a "soft" head?

  1. 9th September 2010, 07:57 PM #11
    blitz
    blitz is offline ChatterBox
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    My missus reckons I'm soft in the head for owning a landrover is that the same thing???
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  2. 9th September 2010, 08:12 PM #12
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    isuzurover
    isuzurover is offline Swaggie
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    Btw - it is not so much the overheating which softens/anneals the head, it is the rapid cooling.

    Aluminium is opposite to steel. If you cool it down quickly it softens if you cool it down slowly it hardens. There are various other methods of hardening Al besides heat though.

    There are a number of experienced heat treating companies in Melbourne. I would be inclined to look into the cost of getting your head re-hardened then machined.
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  3. 9th September 2010, 09:54 PM #13
    facarroll Guest
    Where can I get this heat treatment?
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  4. 9th September 2010, 10:07 PM #14
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    isuzurover
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    Quote Originally Posted by facarroll View Post
    Where can I get this heat treatment?
    Just google "heat treatment Melbourne"

    Here is one which specifically states they do Aluminium:
    Heat Treatment Australia

    John ( Bush65 ) is the metallurgy expert on here, however he doesn't seem to have been on here lately. He may be able to tell you the best company though.
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