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Question for Larrin - Casting a Blade
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Thread: Question for Larrin - Casting a Blade

  1. #1

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    Question for Larrin - Casting a Blade

    This is strictly a curiosity question.

    I was daydreaming this morning and wondering about casting a blade. I would think maybe in a graphite mold against a chill plate to give a carbidic edge and a ductile spine. Yield would be horrendous. I think a subsequent rolling would be necessary to close internal porosity. Certainly not a practical or feasible method forming a knife. But has anyone done it for kicks?

    Thanks,

    -AJ

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    David Boye has been casting dendritic steel and dendritic cobalt blades for over thirty years. I have one of his folding dendritic cobalt boat knives and it is a great EDC.

    http://boyeknives.com

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    Quote Originally Posted by Pensacola Tiger View Post
    David Boye has been casting dendritic steel and dendritic cobalt blades for over thirty years. I have one of his folding dendritic cobalt boat knives and it is a great EDC.

    http://boyeknives.com
    I don't see anything there that implies the blade is cast.

    -AJ

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    Quote Originally Posted by ajhuff View Post
    I don't see anything there that implies the blade is cast.

    -AJ
    Gee, I gotta do searches for you guys, too?

    http://www.francineetchedknives.com/...page.php?id=24

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    Quote Originally Posted by Pensacola Tiger View Post
    Gee, I gotta do searches for you guys, too?

    http://www.francineetchedknives.com/...page.php?id=24
    Still nothing that says the blade is cast. I'm talking about a blade cast to near net shape.


    -AJ

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    Senior Member zitangy's Avatar
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    hey thanks . this is new to me.. interesting read.....

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    Quote Originally Posted by Pensacola Tiger View Post
    David Boye has been casting dendritic steel and dendritic cobalt blades for over thirty years. I have one of his folding dendritic cobalt boat knives and it is a great EDC.

    http://boyeknives.com
    From the above link:
    "Not a steel, it is a mixture of cobalt, chrome, nickel, tungsten, silicon, iron, and carbon."

    It's got Iron + Carbon...what else is needed to call it steel?
    Remember: You're a unique individual...just like everybody else.

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    Quote Originally Posted by ajhuff View Post
    Still nothing that says the blade is cast. I'm talking about a blade cast to near net shape.


    -AJ
    I guess I just don't understand what you're asking. What is "near net shape"?

    Boye's blades are cast. From the second link:

    "Dendritic Steel is a term first used by knifemaker David Boye to describe the cast 440c stainless steel he developed in 1981. This revolutionary blade technology has proven superior to most other cutlery alloys in both edge holding capability and ease of sharpening. The process used to produce it, investment casting, transforms the original steel into one infused with microscopic crystals which create tiny serrations along the blade edge. These micro-serrations enable the blade to stay sharp from 10 to 50 times longer than a conventional blade. It also has a better "bite" (the ability to grip and cut into slippery objects --a tomato, for example) than conventional steel blades. It cuts like a razor blade by microscopically sawing the object, thereby achieving a finer and faster cut."

    Here's a pic of the cast dendritic cobalt blade:


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    Quote Originally Posted by Zwiefel View Post
    From the above link:
    "Not a steel, it is a mixture of cobalt, chrome, nickel, tungsten, silicon, iron, and carbon."

    It's got Iron + Carbon...what else is needed to call it steel?
    The iron component is to low to be considered a steel.

  10. #10

    Zwiefel's Avatar
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    PT, I think the OP is saying that just because the material is created by casting doesn't imply that the blade is cast... i.e. "forged" vs "stock removal"...
    Remember: You're a unique individual...just like everybody else.

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