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Electromagnet cores

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  • Electromagnet cores

    What kind of suggestions are out there for making electromagnet cores? I want to make some small C-shape cores from a very low carbon steel. Which alloys and suppliers would you recommend?

  • #2
    Depends. Will your electromagnet be AC or DC? The production solenoids we build at work generally use low carbon steel for the DC variety. 1008, 1010, and sometimes 12L14 as well as a few specials. A few of our smaller AC solenoids use a solid core, but a laminated core is preferrable to minimize heating from eddy currents. Here too, common low-carbon steels are adequate, but some alloys can jazz up performance somewhat but at a cost.

    Wes
    Weston Bye - Author, The Mechatronist column, Digital Machinist magazine
    ~Practitioner of the Electromechanical Arts~

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    • #3
      The magnets we'll be making are DC.

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      • #4
        While I am no expert, I make handmade tattoo machines, and the core material that I use is 1002. I searched for the lowest carbon steel I could find and that's what I've been using for the last couple of years.

        Cold Metal Products, is where I get it from....if anyone has any other sources, I'd be interested as well.

        John

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