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Thread: Hamon a nice Birthday

  1. #1
    WillC's Avatar
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    Hamon a nice Birthday



    Hamon birthday to me, hamon birthday to me......

    Ha ha , well I've reached the light to medium roasted age of 39 today !

    So I thought I would treat my self to working some of the super clean carbon steel from Achim.

    And what better way than a fully forged little test piece number and a crack at a Hamon. No real excuses not to get one with this steel, so fingers crossed.....

    Nice thick chunk of SC125, perfect for forging down...


















    After a descale and second forging followed by heat cycles, blade is not ground at all prior to HT, just scale removed here for clay coating...










    Will be going in water as intended, no alloy what so ever in this steel, just carbon and iron.

    Wish me luck

  2. #2
    Senior Member Mucho Bocho's Avatar
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    Bad a$$ birthday knife Will. Here's to many more of both.
    One thing you can give and still keep...is your word.

  3. #3
    Senior Member DamageInc's Avatar
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    Happy birthday and good luck!
    Don't drink out of ornamental ponds in Tiergarten. You will get sick.

  4. #4
    Senior Member bkultra's Avatar
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    Happy birthday, can't wait to see the finished knife.

  5. #5
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    Cool. What is with that burning cloud in your second photo? Some kind of heat blanket?

  6. #6
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    WildBoar's Avatar
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    Happy birthday, Will!
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    David (WildBoar's Kitchen)

  7. #7
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    mr drinky's Avatar
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    Cool. Happy Birthday.

    k.
    Danny 'Zwiefel' Owen - 1971-2016 Moderator and Knife Knut for Eternity. RIP

  8. #8
    WillC's Avatar
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    Thanks everybody

    Yes the glowing cloud is fire blanket acting as a furnace door, nothing metaphysical don't worry

    Well I was Hamon a Jammin time until this happened!



    I thought I heard a few gentle tinks after the first quench during the interruption part.

    And I infact had several on the edge. Simple case of overheating, I overestimated the amount of heat lost from furnace to quench considering the heat held by the clay, by quite a few degrees, I think the window to get this steel right and of optimal grain is only a few degrees up or down, so next time I will use the lower end of the temperature window.


    But Im sticking with water I think, the differential hardness achieved was very successful and we have hamon, can see it so clearly even on a forged surface. The blade has 3 clearly defines areas, spine, very soft, less than 40hrc, middle portion around the 60's, edge 67hrc.

    Here are the pics, I broke the piece to see the grain, its fine but could be finer, so again to the overheating....

    Most interesting thing is the break, the edge breaks clean, the middle bends the breaks, the spine just bends, perfect on the differential bit anyway!!













    Ah well lots learned, off to the Pub

  9. #9
    Senior Member mikedtran's Avatar
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    Happy birthday Will!!

  10. #10
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    Have fun at the pub. You could do a nice cut finger gag with that knife now.

    k.
    Danny 'Zwiefel' Owen - 1971-2016 Moderator and Knife Knut for Eternity. RIP

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