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  1. #11
    Quote Originally Posted by Boyan Silyavski View Post
    Nothing is secret:
    So who Killed Kennedy and where is Shergar What happened to Lord Lucan.? Whats the composition of Chobham Armour.?
    Last edited by JAZZCNC; 13-03-2016 at 05:35 PM.

  2. #12
    Keep it down I am trying to remain anonomous.

  3. The Following User Says Thank You to lucan07 For This Useful Post:


  4. #13
    Thank you very much for the links Boyan Silyavski, however i can see both of your links talk about USA and not UK so may be in UK there are different roles... Thank you very much indeed again for your support

  5. #14
    Quote Originally Posted by hoezap View Post
    Thank you very much for the links Boyan Silyavski, however i can see both of your links talk about USA and not UK so may be in UK there are different roles... Thank you very much indeed again for your support

    http://www.masteel.co.uk/armour-steel.htm
    steel composition


    https://www.gov.uk/government/news/n...wcased-at-dsei
    look at google for bainite sword, so you will see how its done

    most of the steels for one or another reason have been used in knife making/ a broad term which includes swordmaking too/ , so here is a very full interactive table of steels with their chemical properties for reference:
    http://zknives.com/knives/steels/steelchart.php

    In this world they love to use "super" names but at the end of the day all will be some typical tool steel with sth little changed for added benefit. I looked at the american steel data and more or less it seems typical high carbon steel
    project 1 , 2, Dust Shoe ...

  6. #15
    So to answer the question on what numbers to look for when thinking about machining steels:

    The yield strength, the elongation and the ultimate tensile strength and the hardness. The higher these numbers the more of a bugger a material is to machine.

    What you need to know is the surface speed that works best for a given material, luckily the suppliers will have a good idea what this is so you can find it in their datasheets.

    From the surface speeds you can calculate the various other numbers you need.

    Plenty of literature on the web and of course cart loads of reference books with the theory of chipping and all the other stuff. I will send you the title of my reference when I get home.
    https://emvioeng.com
    Machine tools and 3D printing supplies. Expanding constantly.

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