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Method for forming a workpiece by a magnetic field generated by a current impulse

  • US 5,813,264 A
  • Filed: 11/15/1996
  • Issued: 09/29/1998
  • Est. Priority Date: 01/27/1996
  • Status: Expired due to Fees
First Claim
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1. A method for forming a workpiece by a magnetic field including the steps of:

  • producing a high current impulse;

    producing said magnetic field by applying said high current impulse through a high current loop circuit located in its entirety outside said workpiece, whereby said magnetic field exerts a force on an electrically conducting object selected from the group comprised of workpiece compression rings and workpieces;

    beginning said high current impulse in the form of a half sine wave defined by the equation (ω

    t=0 . . . π

    ); and

    reducing the cycle of said high current impulse to cause it to fade away as defined by the equation (ω

    t>

    π

    . . . ∞

    ).

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